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jakman85andClaude Opus 5 989649e64a feat(cilium): export Plex's pre-SNAT client address via Hubble, scoped to tcp/32400
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The requirement is log visibility only -- which address connected to Plex.

Plex's own log cannot show it. Every LoadBalancer Service here is
externalTrafficPolicy: Cluster, so the node holding the VIP's L2 lease SNATs
the client before forwarding to the backend pod. Measured: Plex had logged
3,214 requests from 10.0.1.x (lease holder k3s-prod-3's own address, Cilium
identity 1 = reserved:host) and ZERO from any 192.168.x address, ever. No
X-Forwarded-For either -- it serves raw tcp/32400, not HTTP via the Gateway.
Nothing on the router does this; there is no hairpin NAT. It is Cilium.

The address is not lost, only unrecorded. Cilium observes the flow at ingress,
BEFORE its own translation, so Hubble already has it:

  192.168.2.133 -> 10.0.0.135   real LAN client -> the Plex pod
  10.0.1.78     -> 10.0.0.135   same traffic post-SNAT, what Plex sees

What was missing is RETENTION: 4095/4095 flows at ~303/s is about thirteen
seconds of history, metrics disabled, no exporter configured.

So enable the static exporter, port-scoped, to the agent's stdout -- Alloy
already tails every pod into Loki, so this needs no new mount, no rotation
handling and no Alloy change.

  {namespace="kube-system", app="cilium"} |= "32400"

Scoped BY PORT, not namespace, on evidence: --to-namespace plex returned only
the post-SNAT flows; the record carrying the real client address did not match
it. A namespace filter would drop exactly what this exists to capture.

Rejected, with reasons: eTP:Local is incompatible with cilium 1.20's L2
announcer per upstream docs for this version ("may cause service IPs to be
announced on nodes without pods causing traffic drops") -- and the VIP is on
prod-3 while the pod is on prod-1, so it would black-hole 32400 immediately;
making it safe costs Plex its ability to reschedule. DSR: routing-mode is
vxlan, not native/geneve, and DSR returns bypass the ingress node, breaking
the router's stateful NAT on the remote path.

Also corrects the repo's own record: 2026-10-03 says the SNAT lands in
192.168.0.0/16 (the node's LAN address). It is 10.0.1.x, the cilium_host
inside the pod CIDR -- which is why LanNetworksBandwidth can never separate
local from remote while eTP is Cluster.

UNVERIFIED and stated in the handoff: nothing is reconciled; `filePath: stdout`
is taken from a verbatim upstream sentence but not confirmed against 1.20.1
source (a wrong notation is a silent no-op, with the file+Alloy fallback
documented); the port FlowFilter has no upstream example; and this change
ROLLS CILIUM -- prod-3 announces the Gateway, PiHole DNS and Plex VIPs, so a
lease move during the rollout could briefly interrupt LAN DNS.

Co-Authored-By: Claude Opus 5 (1M context) <[email protected]>
2026-10-04 16:36:12 -05:00
jakman85 422834d4e2 Merge pull request 'fix(plex): advertise the plex.direct name, not the bare VIP (server vanished from the plex.tv account)' (#47) from fix/plex-advertise-plexdirect into main
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Reviewed-on: #47
Reviewed-by: Keith Jackson <[email protected]>
2026-10-04 07:59:14 +00:00
jakman85andClaude Opus 5 1f4552d409 fix(plex): advertise the plex.direct name, not the bare VIP (server vanished from the plex.tv account)
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customConnections held two hand-typed URLs and neither could ever complete, so
Plex had nothing publishable and the server disappeared from the account:

  - https://192.168.2.24:32400 -- the server's cert is
    *.130072f20c334d6c8f63d0dfef87309b.plex.direct with NO IP SAN, so bare-IP
    https fails TLS for every client. Measured: a continuous storm of
    "CERT: incomplete TLS handshake ... certificate unknown" from real LAN
    clients arriving through the plex-l4-tcp VIP.
  - https://plex.home.keithjackson.dev:32400 -- nothing listens; the Gateway
    serves that host on 443 (measured http=000 against 192.168.2.20:32400).

With no completable connection plex.tv published nothing ("Mapped - Not
Published"), Plex fell back to Relay, and clients reported "not authorized".

Fix: advertise <dashed-ip>.<serverhash>.plex.direct -- public DNS that resolves
to the embedded address, so it points at the LAN VIP and matches the wildcard
cert. Verified with full TLS validation (no curl -k): 200 + verify OK, where
the bare-IP form fails to connect.

Declared as ADVERTISE_IP so git owns the value instead of a web form: the
image's 40-plex-first-run writes it into customConnections on every pod start,
outside the claim guard.

Does NOT fix off-LAN access -- the advertised address is RFC1918 and the WAN
tcp/32400 forward remains unverified. ManualPortMappingMode=1 with an absent
port is left as-is (no GitOps path exists for it).

Touches clusters/** -> sensitive paths -> needs the operator's
/approve-override, deliberately not self-posted (CLAUDE.md 1).

Co-Authored-By: Claude Opus 5 (1M context) <[email protected]>
2026-10-04 02:53:01 -05:00
jakman85 c95b1c7121 Merge pull request 'fix(cilium): point cgroup.hostRoot at the host cgroup2 root (socket-LB never covered host processes)' (#42) from fix/cilium-cgroup-hostroot into main
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Reviewed-on: #42
2026-10-04 07:10:31 +00:00
jakman85 ed6afc3d3f Merge pull request 'docs(decisions): record that PiHole HA is verified live, failover drill included' (#46) from docs/pihole-ha-verified into main
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Reviewed-on: #46
2026-10-04 07:08:19 +00:00
jakman85andClaude Opus 5 254985baa6 docs(decisions): record that PiHole HA is verified live, failover drill included
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No manifests change. The three entries merged earlier today each say, correctly
at the time, that nothing had been reconciled -- which is now stale in exactly
the way CLAUDE.md section 2b warns about: a reader would conclude the work is
unproven. This entry is the current state and does not edit the earlier files.

Measured on live prod after dce20b7: apps-wave-0 reconciled in ~90s (inside the
5m timeout the multi-replica entry flagged as a risk); pihole-0 on k3s-prod-3
and pihole-1 on k3s-prod-2, so the required anti-affinity was satisfied; both
per-replica claims Bound; the old Deployment and the old unused PVC both pruned;
PDB healthy with one disruption allowed.

The mountPath fix is confirmed: /etc/pihole is now on /dev/longhorn with 6.9M
used on both pods, where it was previously on the overlay.

Phase 1's declarations reproduce onto a FRESH volume, which was the whole reason
for sequencing it first: 72,234 gravity domains rebuilt on each replica from the
declared adlist, and the declared SOPS secret authenticates on BOTH pods
("valid":true via each container's own env, value never printed).

FAILOVER DRILL, observed by the operator: a replica was deleted, recreated in
~30 seconds, and DNS never dropped a request. First direct evidence the replica
count delivers what it was added for.

Re-deriving the SLI from the rendered workload kind mattered concretely: the
StatefulSet series returns 2 while the old Deployment series now returns ZERO
series, so a stale Deployment-shaped rule would have matched its own absent()
branch and fired permanently -- a standing false page.

Still unverified and stated as such: node failure (the drill deleted a pod, so
the 300s toleration path is untouched), DNS during the cutover itself, two-node
loss, and the cluster-wide dependency that replicas cannot address.

Co-Authored-By: Claude Opus 5 (1M context) <[email protected]>
2026-10-04 02:03:42 -05:00
jakman85 dce20b7be6 Merge pull request 'feat(pihole): two replicas on different nodes, and fix a PVC mounted where pihole never writes' (#45) from feat/pihole-multi-replica into main
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Reviewed-on: #45
2026-10-04 06:50:56 +00:00
jakman85andClaude Opus 5 028853c87c feat(pihole): two replicas on different nodes, and fix a PVC mounted where pihole never writes
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Phase 2 of making LAN DNS survive a node failure. Pihole was one pod on one
node; measured 2026-10-04, losing that node meant roughly 6-10 minutes with no
LAN resolution (tolerationSeconds 300 + NotReady detection + a Longhorn RWO
force-detach), while losing the node holding the pihole-dns L2 lease -- a
DIFFERENT node -- meant tens of seconds. Two of three nodes were single points
of failure with wildly different blast radii.

Adds `availability.replicas` to the ServiceDefinition schema (1.10.0). Intent
only; the mechanism is render.py's, documented in the renderer contract. 1 or
absent renders a Deployment exactly as before -- verified byte-identical across
the whole apps/ tree. >1 renders a StatefulSet (a longhorn PVC is RWO, so a
multi-replica Deployment never schedules the second pod), per-replica
volumeClaimTemplates, REQUIRED hostname anti-affinity, podManagementPolicy
Parallel, a minAvailable:1 PodDisruptionBudget, and an SLI that follows the
rendered kind (a Deployment-shaped rule against a StatefulSet absent()s forever).

Pinned by ~20 new --selftest assertions rather than a conformance change.

ALSO FIXES A LIVE BUG. Pihole's config PVC was mounted at the renderer default
/data/config, but pihole writes to /etc/pihole. Measured: /etc/pihole (7.1M --
gravity.db, pihole.toml, query DB) was on the OVERLAY, while the 2Gi Longhorn
volume held lost+found and 24K of nothing. So every restart discarded all state
and re-downloaded 72k gravity domains, and backup.policy has been backing up an
empty volume while reporting success. Fixed here because otherwise the new
per-replica volumes would hold nothing while state stayed ephemeral -- and
because persisting gravity.db is what makes a restart cheap.

The /etc/pihole mount is safe on the image's own evidence: start.sh is PID 1 as
uid 0 and chowns the directory recursively (no fsGroup needed), and it calls
migrate_gravity which creates the database when absent.

The gate caught a real regression on the first run: the wave-0 alert unit test
fed pihole a Deployment-shaped series. Updated; promtool SUCCESS.

Touches no sensitive paths, so this one needs no override.

Co-Authored-By: Claude Opus 5 (1M context) <[email protected]>
2026-10-04 01:34:52 -05:00
jakman85 17f0c11403 Merge pull request 'feat(pihole): declare the admin password and adlists in git' (#44) from feat/pihole-declare-state into main
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Reviewed-on: #44
Reviewed-by: Keith Jackson <[email protected]>
2026-10-04 06:14:47 +00:00
jakman85andClaude Opus 5 3b1d6ae115 feat(pihole): declare the admin password and adlists in git
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Prerequisite for running more than one PiHole replica. A second replica with a
fresh PVC would have come up serving DNS and blocking nothing, with a different
admin password -- answers varying by which pod replied.

pihole.toml's own ### CHANGED markers gave the exact inventory: four settings
already came from env (declared), one came from the image, and exactly ONE
operator-set value lived only on the PVC -- webserver.api.pwhash, a one-way hash
nobody could recover. Separately the adlists were undeclared: one list and 72,234
gravity domains that nothing in this repo named.

Declares both:
- A SOPS secret feeding FTLCONF_webserver_api_password. webserver.api.password
  takes cleartext and FTL hashes it itself (verified: pihole setpassword IS
  setFTLConfigValue on that key), so the PVC's pwhash becomes derived state.
- A level-triggered postStart hook that reconciles the declared adlist set into
  gravity.db -- adds, re-enables, and disables (never deletes) undeclared lists,
  running pihole -g only when something moved. A file would not work: v6's
  adlists.list import is migration-only, guarded on the DB not existing.

The rendered hook was run in the live pod against throwaway copies of gravity.db,
exercising all four paths. A fresh DB built from the image's own schema template
has ZERO adlists, confirming this is load-bearing rather than cosmetic.

Password kept rather than set empty: the pihole Service still publishes port 80
past the oauth2-proxy, closed only by policy, and default-deny has drifted here
before.

Multi-replica is phase 2 and deliberately not in this branch -- it needs a schema
field, a StatefulSet (the config PVC is RWO), anti-affinity and a PDB.

Adds a *.sops.yaml -- a sensitive path -- so approval-policy will block pending
an operator /approve-override.

Co-Authored-By: Claude Opus 5 (1M context) <[email protected]>
2026-10-04 01:07:30 -05:00
jakman85 939461120a Merge pull request 'feat(plex): expose tcp/32400 for remote access via a pinned LoadBalancer VIP' (#43) from feat/plex-remote-access-l4 into main
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Reviewed-on: #43
Reviewed-by: Keith Jackson <[email protected]>
2026-10-04 04:46:34 +00:00
jakman85andClaude Opus 5 fbaeb3e038 feat(plex): expose tcp/32400 for remote access via a pinned LoadBalancer VIP
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Remote Plex clients had no path in, for two measured reasons: Plex advertised
no remote connection at all (customConnections and ManualPortMappingMode both
ABSENT while PublishServerOnPlexOnlineKey=1), and its Service was ClusterIP, so
32400 had no off-cluster path. The L7 Gateway was NOT the problem -- it serves
Plex correctly (200, claimed=1, 401 on protected endpoints) -- but Plex clients
discover servers through plex.tv, not DNS, so an HTTPRoute cannot put this
server on a client's connection list.

Operator chose the native path over ADVERTISE_IP: Plex terminates its own TLS
with *.plex.direct and streams bypass the Envoy L7 hop.

Adds a hand-written non-catalog unit (the SD schema cannot express a
LoadBalancer Service or a pinned lbipam VIP), registered in render.py's
EXTRA_UNITS so --emit-waves places it in plex's own wave.

externalTrafficPolicy: Cluster, inheriting crafty's 8-day-outage lesson rather
than re-deriving it. Known consequence, documented: SNAT puts remote clients
inside ALLOWED_NETWORKS, so Plex meters them as LAN. Not an auth change.

Remote access does NOT work until the operator does two manual steps that
cannot live in this repo -- the WAN tcp/32400 forward and Plex's "manually
specify public port" toggle (no env var exists for it; verified NONE in the
image's init surface). runbooks/plex-remote-access.md is the procedure.

Touches clusters/** -- a sensitive path -- so the approval-policy stage will
block pending an operator /approve-override.

Co-Authored-By: Claude Opus 5 (1M context) <[email protected]>
2026-10-03 23:30:46 -05:00
jakman85andClaude Opus 5.5 9a69f6906a fix(cilium): point cgroup.hostRoot at the host's real cgroup2 root
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hostRoot was /run/cilium/cgroupv2 with autoMount disabled, but nothing
mounts cgroup2 there. The agent mounted one from inside its own private
cgroup namespace, so socket-LB attached to the agent's own cgroup and
host processes got no Service/LB translation. k3s-prod-1 (Gateway L2
lease holder + kube-vip VIP) therefore could not reach the Gateway VIP,
and its apiserver's OIDC authenticator has failed since 2026-09-12.

Co-Authored-By: Claude Opus 5.5 <[email protected]>
2026-10-03 18:07:18 -05:00
jakman85 7ef2af205d Merge pull request 'fix(node-baseline): pin the OIDC issuer to the Gateway VIP on prod nodes' (#41) from fix/node-keycloak-hosts-pin into main
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Reviewed-on: #41
2026-10-03 22:46:38 +00:00
jakman85andClaude Opus 5.5 788eaeae62 fix(node-baseline): pin the OIDC issuer to the Gateway VIP on prod nodes
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After public DNS moved to the WAN IP (#40), prod nodes resolve
keycloak.home.keithjackson.dev to a WAN address the router does not
hairpin, so the apiserver could not reach its OIDC issuer. Adds an opt-in
node_baseline_hosts_pins /etc/hosts block; prod pins keycloak to
GATEWAY_VIP.

Co-Authored-By: Claude Opus 5.5 <[email protected]>
2026-10-03 17:39:37 -05:00
jakman85 576e1abb19 Merge pull request 'feat(dns): publish Gateway names to the WAN via in-cluster DDNS' (#40) from feat/public-dns-wan-target into main
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Reviewed-on: #40
2026-10-03 22:25:13 +00:00
jakman85andClaude Opus 5.5 a1e808e697 feat(dns): publish Gateway names to the WAN via in-cluster DDNS
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Gateway-published records now CNAME to wan.${BASE_DOMAIN}, which a
favonia/cloudflare-ddns Deployment keeps at the home WAN's current public
IP. Operator decision: every Gateway-published name goes public; internal
services (controller: none) remain unpublished.

Co-Authored-By: Claude Opus 5.5 <[email protected]>
2026-10-03 16:59:53 -05:00
jakman85 bcb8931b4f Merge pull request 'fix(runbooks): Plex hw transcoding WORKS — the dashboard was never the proof' (#39) from fix/plex-quicksync-verification into main
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Reviewed-on: #39
Reviewed-by: Keith Jackson <[email protected]>
2026-10-02 06:43:04 +00:00
jakman85 0d7f94098b Merge branch 'main' into fix/plex-quicksync-verification
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2026-10-02 06:37:04 +00:00
jakman85andClaude Opus 5 f0994c11a0 docs(decisions): record the PR's measured CI result — gitea-settings has drifted
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Read PR #39's own gate log rather than the tick (CLAUDE.md §2b). Every stage
this branch could affect is green: decisions-log, lint, l0, render-golden, l1,
and approval-policy (which evaluated for real on the pull_request event and
passed — no sensitive path touched). The one failure is `gitea-settings`:

    required_approvals: DECLARED 1 but LIVE is 0
    Gitea has DRIFTED from infra/gitea/expected-branch-protection.json

Every other declared setting matched, and one runner is online. So live `main`
currently requires ZERO approvals while the declaration says 1, and because
.gitea/workflows/gate.yml sets REQUIRE_GITEA_SETTINGS=true, that drift blocks
EVERY PR in the repo, not only this one. The check that would notice approvals
are unenforced is the check that is failing.

Not touched here: infra/gitea/** is a sensitive path (non-author approval
required) and outside this branch's documentation-only scope. Re-asserting the
protection or changing the declaration is an operator decision in its own PR;
local branch fix/admin-approval-override (616a497) looks like that work in
flight.

Co-Authored-By: Claude Opus 5 (1M context) <[email protected]>
2026-10-02 01:01:13 -05:00
jakman85andClaude Opus 5 1677dff568 fix(runbooks): Plex hw transcoding WORKS — the dashboard was never the proof
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Hardware transcoding is confirmed working on prod (2026-10-02): VAAPI for both
decode and encode on /dev/dri/renderD128, with zero-copy, measured in
`Plex Media Server.log` in the running pod. The device-plugin mechanism from #37
works end to end.

`runbooks/plex-quicksync.md` said the Plex dashboard showing `Transcode (hw)` was
"the *only* proof available, and nothing else will ever tell you". That is false:
Dashboard -> Activity showed nothing while the feature was fully working, so the
page's authoritative check was silent on a healthy system and sent the operator
hunting a fault that did not exist.

Three inference errors corrected, two kept as named false leads:

1. The LOG is the primary check, not the dashboard. The grep ships in its
   REDACTING form -- that log carries API URLs with `X-Plex-Token` (CLAUDE.md §6).
   Also recorded: `Plex Transcoder Statistics.log` is the WRONG file (XML
   <Variant/> records, no ffmpeg output), and why `grep -a` is required. The
   dashboard is kept but demoted to best-effort, with its silence stated to prove
   nothing.
2. An fd snapshot is not evidence. A /proc/*/fd sweep found no holder of
   renderD128 while hardware transcoding was active -- sessions are short and the
   scan landed in a gap. The reliable process-level check is the transcoder's
   argv (-hwaccel, -hwaccel_device, vaapi, renderD128).
3. A missing preference key means nothing. `HardwareAcceleratedCodecs` was absent
   from all 27 attributes with the toggle on and working, while
   `HardwareDevicePath` was written and the log said "hardware transcoding:
   enabled". Only `="0"` is conclusive; the log settles it.

Also stale and now fixed: GID 992 is a hostPath-era number. Under the plugin the
injected device is root:root, so the image's hook resolves GID 0 and adds `plex`
to the root group (`Groups: 0 100 1000`, `groups=1000(plex),0(root),100(users)`).
Marked as an inherent property of the plugin's DeviceSpec, not a defect, and
explicitly not a reason to reintroduce supplementalGroups (still a no-op --
s6-setuidgid rebuilds the group list from /etc/group). Added a per-title fallback
entry (UHD 630 has no AV1 decode), labelled a HYPOTHESIS: the title that fell
back was never checked. `runbooks/README.md`'s index entry was stale the same two
ways and is corrected.

Unchanged on purpose: the "STOP HERE IF PLEX IS Pending" section, the escape
hatch, and the no-alert-is-possible reasoning (no metricsEndpoint, no
ServiceMonitor, nothing a rule could evaluate).

Documentation only -- no catalog/, schemas/, apps/ or platform/ change.

Co-Authored-By: Claude Opus 5 (1M context) <[email protected]>
2026-10-02 00:49:53 -05:00
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@@ -14,10 +14,12 @@ resources:
- nextcloud-db-backup-credentials-prod.sops.yaml - nextcloud-db-backup-credentials-prod.sops.yaml
- nextcloud-db-backup-credentials.sops.yaml - nextcloud-db-backup-credentials.sops.yaml
- nextcloud-db.yaml - nextcloud-db.yaml
- pihole-bootstrap-secret.sops.yaml
- pihole-dns.yaml - pihole-dns.yaml
- pihole-oauth2-proxy-credentials.sops.yaml - pihole-oauth2-proxy-credentials.sops.yaml
- pihole.yaml - pihole.yaml
- plex-claim-secret.sops.yaml - plex-claim-secret.sops.yaml
- plex-remote.yaml
- plex.yaml - plex.yaml
- qbittorrent-bootstrap-secret.sops.yaml - qbittorrent-bootstrap-secret.sops.yaml
- qbittorrent-oauth2-proxy-credentials.sops.yaml - qbittorrent-oauth2-proxy-credentials.sops.yaml
@@ -0,0 +1,72 @@
# =================================================================================================
# PiHole WEB/API ADMIN PASSWORD — the one piece of PiHole state that was NOT declared anywhere.
# =================================================================================================
# WHY THIS FILE EXISTS. Measured on live prod 2026-10-04, `pihole.toml` marks every non-default
# setting with `### CHANGED`, and names the ones that came from the environment `### CHANGED (env)`.
# The complete list was:
#
# dns.upstreams ### CHANGED (env) <- declared, catalog/pihole.yaml
# dns.listeningMode ### CHANGED (env) <- declared, catalog/pihole.yaml
# dns.rateLimit.count ### CHANGED (env) <- declared, catalog/pihole.yaml
# misc.dnsmasq_lines ### CHANGED (env) <- declared, catalog/pihole.yaml
# files.macvendor ### CHANGED <- set by the image itself, container path
# webserver.api.pwhash ### CHANGED <- SET OUT OF BAND. Declared NOWHERE. This file.
#
# So exactly ONE operator-set value lived only on the Longhorn PVC: the admin password, as a
# one-way BALLOON-SHA256 hash. Nobody could recover it (a hash does not reverse), nothing in git
# produced it, and a rebuild from git would have come up with a DIFFERENT password — or none.
#
# THE REASON THIS BLOCKS HA, which is why it is fixed first. The next step is running more than one
# PiHole replica, and a replica with a fresh PVC would come up with its own unrelated password. The
# admin UI would then accept or reject the same credential depending on which pod answered. Declaring
# it here makes every replica, and every rebuild, identical by construction.
#
# MECHANISM: `webserver.api.password` is a real, settable FTL config key — verified in the running
# image, where `pihole setpassword` is itself just `setFTLConfigValue "webserver.api.password"` with
# the comment "pihole-FTL will automatically hash the password". So FTL takes CLEARTEXT on this key
# and writes the hash into `webserver.api.pwhash` itself. catalog/pihole.yaml therefore passes this
# value as `FTLCONF_webserver_api_password`, and the hash on the PVC becomes a derived artefact
# rather than the source of truth.
#
# DEFENCE IN DEPTH, NOT THE ONLY GATE. The admin UI is already behind the oauth2-proxy sidecar
# (`--allowed-group=platform-admins`), so this password is a SECOND gate. It is kept rather than set
# empty because the `pihole` Service still publishes port 80 (PiHole direct, bypassing the proxy on
# :4180) and only the CiliumNetworkPolicy closes it — and the default-deny policy in this repo has a
# documented drift history. An unauthenticated admin UI that can rewrite LAN DNS is not a good thing
# to leave resting on one policy staying correct. Narrowing that Service port is tracked follow-up.
#
# ROTATION: `sops` this file in your own terminal, change the value, commit. Flux re-applies the
# Secret, the pod restarts, FTL re-hashes. Do NOT `sops -d` it into a shared terminal or a log
# (CLAUDE.md section 6); read it in an editor. The value below was generated randomly at authoring
# time and has never been printed to a transcript.
apiVersion: v1
kind: Secret
metadata:
name: pihole-bootstrap
namespace: pihole
labels:
app.kubernetes.io/name: pihole
type: Opaque
stringData:
#ENC[AES256_GCM,data:TMOuRyJeb5IVn3lZPXY7lgh1KGxu7GY9+WIOLHpMB50JqzmM2tHIaWUWKTt1JtZoX/E5/Y7WCUTnfkJLhRBN2zV2MwWRBSLYVy5CMg7xV8PTLRZJYAVUYS5Trg==,iv:q+DpfT6PQfY5ZuNsmP7Ddl+PDLjSm89fJICAhYoW64k=,tag:axijaO3DaxIZgZ3LeK2hXA==,type:comment]
webui-password: ENC[AES256_GCM,data:7FcK/bUW79M46f/MlouAmATKbMnoUTNuMUjtqJ5vpU4=,iv:I8DBFB39uXZV42Ie2IPwSefmMgdKEtiDknfc9Tu7h5E=,tag:L423784UrDU3TvylpHc6KQ==,type:str]
sops:
kms: []
gcp_kms: []
azure_kv: []
hc_vault: []
age:
- recipient: age175l8mdpdfu7hq0aml3exs3gykarwjmuvr23sq56s3wjejnyk44wsp4mfzg
enc: |
-----BEGIN AGE ENCRYPTED FILE-----
YWdlLWVuY3J5cHRpb24ub3JnL3YxCi0+IFgyNTUxOSB0MkRSNjZLZlpXYkcvaVJL
cjlqb2wrcWREZnZLdGpsTHNPWEpseHlRZnpjCnJVM1FDQ2M2dXlaS1JBZ2k2V1BP
Yi9QUDZSMzZsL09pTi93RTdjdGxtY2MKLS0tIDIrQTZIVWdhMGIxSCtlUFN2Mlho
SWVybld4VjJyaHRSKzZZU0xsUUV2SEEKbDYHV/qBZVspK7DpBW3vYjRMJ/HmAN+9
G9bOlNEp0jAtcNZEn6lpQ9ORgvmIrhJHoBQRLabdMWzNWSZsNn56tA==
-----END AGE ENCRYPTED FILE-----
lastmodified: "2026-10-04T06:01:27Z"
mac: ENC[AES256_GCM,data:rhTMTOwLOtHXHgqI5M2ZW/6w+UpLpxBlTk7NoN0wmGSqOcE+OGrXA1DhkZrJweyQT0RSNSSBm/6QMztLP81eepOzdp2rEkwvbQPK/l6K9g16Ww9c1IatS3NQsKEB8AoMDx7jBQ6exXYgggPx3MJsNYbE+WyloQ96U9KPdrecAM8=,iv:n34v2zX9D5xsaR1PFCH94mNMiuRfhUyI2lseUCoqiTA=,tag:9YmN9nIVLXfsGYIb0bUl2w==,type:str]
pgp: []
encrypted_regex: ^(data|stringData)$
version: 3.9.4
+53 -28
View File
@@ -35,34 +35,18 @@ spec:
- protocol: TCP - protocol: TCP
port: 53 port: 53
--- ---
# PVC pihole-config (R-STATE) # StatefulSet (R-PLAT-02)
apiVersion: v1
kind: PersistentVolumeClaim
metadata:
name: pihole-config
namespace: pihole
labels:
app.kubernetes.io/name: pihole
spec:
accessModes:
- ReadWriteOnce
storageClassName: longhorn
resources:
requests:
storage: 2Gi
---
# Deployment (R-PLAT-02)
apiVersion: apps/v1 apiVersion: apps/v1
kind: Deployment kind: StatefulSet
metadata: metadata:
name: pihole name: pihole
namespace: pihole namespace: pihole
labels: labels:
app.kubernetes.io/name: pihole app.kubernetes.io/name: pihole
spec: spec:
replicas: 1 replicas: 2
strategy: serviceName: pihole
type: Recreate podManagementPolicy: Parallel
selector: selector:
matchLabels: matchLabels:
app.kubernetes.io/name: pihole app.kubernetes.io/name: pihole
@@ -90,9 +74,21 @@ spec:
value: '0' value: '0'
- name: FTLCONF_misc_dnsmasq_lines - name: FTLCONF_misc_dnsmasq_lines
value: address=/${BASE_DOMAIN}/${GATEWAY_VIP};address=/unifi.${BASE_DOMAIN}/${UNIFI_L4_VIP};address=/crafty-mc.${BASE_DOMAIN}/${CRAFTY_L4_VIP};address=/pihole-dns.${BASE_DOMAIN}/${PIHOLE_DNS_VIP} value: address=/${BASE_DOMAIN}/${GATEWAY_VIP};address=/unifi.${BASE_DOMAIN}/${UNIFI_L4_VIP};address=/crafty-mc.${BASE_DOMAIN}/${CRAFTY_L4_VIP};address=/pihole-dns.${BASE_DOMAIN}/${PIHOLE_DNS_VIP}
- name: FTLCONF_webserver_api_password
valueFrom:
secretKeyRef:
name: pihole-bootstrap
key: webui-password
volumeMounts: volumeMounts:
- name: config - name: config
mountPath: /data/config mountPath: /etc/pihole
lifecycle:
postStart:
exec:
command:
- /bin/bash
- -c
- "# Assert the declared adlists in gravity.db. Idempotent: steady state writes nothing and\n# does NOT run a gravity rebuild.\nset -u\nGRAVITY=/etc/pihole/gravity.db\n\n# THE DECLARED SET \u2014 one URL per line, the source of truth for what PiHole blocks.\n# To add a list: add a line here, commit, let Flux reconcile. Nothing else to do.\nDECLARED='https://raw.githubusercontent.com/StevenBlack/hosts/master/hosts'\n\n# On a fresh PVC, FTL creates gravity.db a moment after the container starts. Wait, bounded,\n# and NEVER block or fail the start: a missing DB here must not crashloop DNS for the LAN.\ni=0\nwhile [ ! -s \"$GRAVITY\" ] && [ \"$i\" -lt 90 ]; do sleep 2; i=$(expr $i + 1); done\nif [ ! -s \"$GRAVITY\" ]; then\n echo \"pihole-adlists: gravity.db absent after 180s - leaving adlists untouched\" >&2\n exit 0\nfi\n\nsql() { pihole-FTL sqlite3 \"$GRAVITY\" \"$1\"; }\nCHANGED=0\n\n# 1) Every declared URL must be present AND enabled.\necho \"$DECLARED\" | while IFS= read -r url; do\n [ -n \"$url\" ] || continue\n printf '%s\\n' \"$url\"\ndone > /tmp/declared.txt\nwhile IFS= read -r url; do\n [ -n \"$url\" ] || continue\n # Single quotes inside a URL would break this SQL; adlist URLs do not contain them.\n have=$(sql \"select count(*) from adlist where address='$url';\")\n if [ \"$have\" = \"0\" ]; then\n echo \"pihole-adlists: adding $url\"\n sql \"insert into adlist (address,enabled,comment) values ('$url',1,'declared in catalog/pihole.yaml');\"\n CHANGED=1\n else\n en=$(sql \"select enabled from adlist where address='$url';\")\n if [ \"$en\" != \"1\" ]; then\n echo \"pihole-adlists: re-enabling $url\"\n sql \"update adlist set enabled=1 where address='$url';\"\n CHANGED=1\n fi\n fi\ndone < /tmp/declared.txt\n\n# 2) Anything enabled in the DB but NOT declared gets disabled (never deleted - see above).\nsql \"select address from adlist where enabled=1;\" | while IFS= read -r addr; do\n [ -n \"$addr\" ] || continue\n if ! grep -qxF \"$addr\" /tmp/declared.txt; then\n echo \"pihole-adlists: disabling undeclared $addr\"\n sql \"update adlist set enabled=0 where address='$addr';\"\n echo changed >> /tmp/adlist-changed\n fi\ndone\n[ -s /tmp/adlist-changed ] && CHANGED=1\nrm -f /tmp/adlist-changed /tmp/declared.txt\n\n# 3) Rebuild gravity ONLY if the declared set actually moved.\nif [ \"$CHANGED\" = \"1\" ]; then\n echo \"pihole-adlists: declared set changed - running gravity update\"\n pihole -g || echo \"pihole-adlists: gravity update failed; existing gravity.db retained\" >&2\nelse\n echo \"pihole-adlists: already matches the declared set - nothing to do\"\nfi\nexit 0\n"
- name: oauth2-proxy - name: oauth2-proxy
image: quay.io/oauth2-proxy/oauth2-proxy:v7.8.1 image: quay.io/oauth2-proxy/oauth2-proxy:v7.8.1
imagePullPolicy: IfNotPresent imagePullPolicy: IfNotPresent
@@ -163,10 +159,39 @@ spec:
port: http port: http
initialDelaySeconds: 5 initialDelaySeconds: 5
periodSeconds: 15 periodSeconds: 15
volumes: affinity:
- name: config podAntiAffinity:
persistentVolumeClaim: requiredDuringSchedulingIgnoredDuringExecution:
claimName: pihole-config - labelSelector:
matchLabels:
app.kubernetes.io/name: pihole
topologyKey: kubernetes.io/hostname
volumeClaimTemplates:
- metadata:
name: config
labels:
app.kubernetes.io/name: pihole
spec:
accessModes:
- ReadWriteOnce
storageClassName: longhorn
resources:
requests:
storage: 2Gi
---
# PodDisruptionBudget — keep one replica through a drain (availability.replicas)
apiVersion: policy/v1
kind: PodDisruptionBudget
metadata:
name: pihole
namespace: pihole
labels:
app.kubernetes.io/name: pihole
spec:
minAvailable: 1
selector:
matchLabels:
app.kubernetes.io/name: pihole
--- ---
# Service # Service
apiVersion: v1 apiVersion: v1
@@ -269,11 +294,11 @@ spec:
- name: pihole.slis - name: pihole.slis
rules: rules:
- alert: pihole-down - alert: pihole-down
expr: kube_deployment_status_replicas_available{namespace="pihole", deployment="pihole"} == 0 or absent(kube_deployment_status_replicas_available{namespace="pihole", deployment="pihole"}) expr: kube_statefulset_status_replicas_ready{namespace="pihole", statefulset="pihole"} == 0 or absent(kube_statefulset_status_replicas_ready{namespace="pihole", statefulset="pihole"})
for: 5m for: 5m
labels: labels:
severity: critical severity: critical
service: pihole service: pihole
annotations: annotations:
summary: pihole is down summary: pihole is down
description: 'pihole: its Deployment has no available/ready replica for 5m, or the signal is gone entirely (SLI: up, via kube_deployment_status_replicas_available).' description: 'pihole: its StatefulSet has no available/ready replica for 5m, or the signal is gone entirely (SLI: up, via kube_statefulset_status_replicas_ready).'
+126
View File
@@ -0,0 +1,126 @@
---
# =================================================================================================
# PLEX REMOTE ACCESS — raw tcp/32400 north-south exposure, and the policy that admits it.
# =================================================================================================
# HAND-WRITTEN, NOT RENDERED. A non-catalog app-tier unit anchored to the `plex` ServiceDefinition
# and placed into wave 0 by `catalog/render.py --emit-waves` via its EXTRA_UNITS table — the same
# mechanism gitea-actions and pihole-dns use. It is hand-written for the SAME reason those are:
# schemas/servicedefinition.schema.json is `additionalProperties: false` and has NO field for a
# type=LoadBalancer Service, for a pinned lbipam VIP, or for raw-TCP north-south exposure at all.
# `ingressRoutes` renders HTTPRoutes on the shared Gateway, which is an L7 HTTPS terminator.
#
# WHY THE L7 GATEWAY IS NOT ENOUGH HERE — and it is NOT because the Gateway fails to serve Plex.
# Measured 2026-10-03 through the Gateway VIP: `GET https://plex.home.keithjackson.dev/identity`
# returned HTTP 200 with `claimed="1"` and the real machineIdentifier, and the protected endpoints
# (/library/sections, /status/sessions, /:/prefs) all returned 401. The L7 path WORKS.
#
# The problem is DISCOVERY, not proxying. Plex apps (phone, TV, Roku) do not resolve
# `plex.${BASE_DOMAIN}`; they ask plex.tv for the server's connection list. A server gets onto that
# list one of two ways: it advertises a custom URL (`customConnections`, the ADVERTISE_IP env), or it
# publishes a reachable public IP:port for its own tcp/32400. Measured in the live Preferences.xml on
# 2026-10-03: `customConnections` ABSENT, `ManualPortMappingMode` ABSENT, while
# `PublishServerOnPlexOnlineKey="1"` — the server was trying to publish and had nothing reachable to
# publish, so remote clients saw NO connection at all. The operator chose the NATIVE path (this
# file) over advertising the Gateway URL: Plex then terminates its own TLS with its
# `*.plex.direct` certificate and video streams bypass the Envoy L7 hop entirely.
#
# VIP: ${PLEX_L4_VIP} (cluster-vars, R-ENV-02 — dev 192.168.1.57, prod 192.168.2.24), PINNED via
# lbipam.cilium.io/ips out of the CiliumLoadBalancerIPPool `default-pool`
# (${CILIUM_LB_POOL_START}..${CILIUM_LB_POOL_STOP}) and ARP-announced on the flat LAN by the existing
# CiliumL2AnnouncementPolicy `default-l2` (platform-config/cilium/*). No new Cilium config is needed;
# this Service just consumes the pool. PINNING IS NOT OPTIONAL: the address is typed into a WAN
# port-forward on the SOHO router, which is hand-maintained and off-repo, so it can never move.
# 192.168.2.24 verified FREE live 2026-10-03 — `default-pool` reported IPsTotal 11 / IPsUsed 4 /
# IPsAvailable 7, and the only four allocations were .20 (cilium-gateway-shared), .21 (unifi-l4-*),
# .22 (crafty-l4-*) and .23 (pihole-dns-*).
#
# ONE SERVICE, TCP ONLY. Unlike unifi/crafty/pihole-dns this needs no second Service and no
# lbipam.cilium.io/sharing-key: Plex's remote access is tcp/32400 and nothing else. (Plex's
# DLNA/GDM discovery uses UDP, but that is LAN-only multicast and is not part of remote access.)
#
# NO `loadBalancerSourceRanges`, DELIBERATELY — and this is the one place this file diverges from
# its closest sibling. apps/wave-0/pihole-dns.yaml pins its source range to ${LAN_CIDR} because a
# resolver must never answer the internet. This Service is the OPPOSITE case: admitting remote
# clients from arbitrary internet addresses is its entire purpose, so there is no range to narrow
# to. Plex authenticates every caller itself (measured above: 401 on every protected endpoint
# without a token), which is what makes an unfiltered port defensible here.
#
# NO external-dns ANNOTATION, DELIBERATELY. unifi and crafty both carry
# `external-dns.alpha.kubernetes.io/hostname` so external-dns publishes their VIP as a public
# Cloudflare record. This Service must not, for pihole-dns's reason: ${PLEX_L4_VIP} is an RFC1918
# address that is useless in public DNS. Remote clients get this server's address from plex.tv, not
# from the zone. The existing public `plex.${BASE_DOMAIN}` record is published from the rendered
# HTTPRoute via the gateway source and is NOT affected by this file — the web UI keeps working
# through the Gateway exactly as before.
#
# -------------------------------------------------------------------------------------------------
# externalTrafficPolicy: Cluster — inherited from crafty's 8-DAY LAN OUTAGE, not re-derived.
# -------------------------------------------------------------------------------------------------
# `Local` is the tempting choice because it preserves the client source IP, which this service
# actually has a use for (see the allowedNetworks note below). It is still WRONG here, for the
# reason platform/crafty/service-l4.yaml documents at length: Cilium's L2 announcer elects ONE lease
# holder per Service and does NOT follow the backend pod, so with `Local` the VIP can be announced
# by a node that has no Plex pod, which black-holes the port while every object still reports
# healthy. Plex is a single-replica Deployment with `strategy: Recreate` pinned to wherever the
# scheduler put it, so the mismatch is the normal case, not a rare one. Take the SNAT.
#
# KNOWN CONSEQUENCE OF THAT CHOICE, stated rather than discovered later: `Cluster` SNATs the client
# to the ingress NODE's address (192.168.2.1x), which falls inside the `192.168.0.0/16` entry of
# catalog/plex.yaml's ALLOWED_NETWORKS. Plex will therefore classify every REMOTE client as LAN.
# Measured 2026-10-03 on the Gateway path, which SNATs the same way: Plex logged the request as
# `[10.0.2.214:36040 (Allowed Network (WAN))]`. This is a METERING effect, not a security one —
# authorization is unchanged (401s above), but Plex's remote-quality/bandwidth limits will not bind
# on these streams because it believes they are local. Narrowing ALLOWED_NETWORKS cannot fix it
# without also de-classifying genuine LAN clients, so it is accepted.
apiVersion: v1
kind: Service
metadata:
name: plex-l4-tcp
namespace: plex
labels:
app.kubernetes.io/name: plex
annotations:
lbipam.cilium.io/ips: "${PLEX_L4_VIP}"
spec:
type: LoadBalancer
externalTrafficPolicy: Cluster
selector:
app.kubernetes.io/name: plex
ports:
- name: plex-remote
port: 32400
targetPort: 32400
protocol: TCP
---
# INGRESS allow for the raw port (R-NET-01/02).
#
# The rendered plex.yaml already carries `plex-allow-gateway-ingress` (fromEntities: ingress ->
# 32400) and three reciprocal allows for sonarr/radarr/seerr. CiliumNetworkPolicies are ADDITIVE, so
# this file adds the off-cluster case without touching those.
#
# `world` is Cilium's entity for anything outside the cluster, which is what a remote Plex client is.
# `host` and `cluster` mirror platform/crafty/networkpolicy.yaml's game-port rule and are what make
# this work under `externalTrafficPolicy: Cluster`: after SNAT the packet's source is the ingress
# NODE, which Cilium classifies as `host` (same node) or `remote-node` (a different one) — NOT
# `world`. Listing `world` alone would compile cleanly and then drop every remote stream, so all
# four entities are named.
apiVersion: cilium.io/v2
kind: CiliumNetworkPolicy
metadata:
name: plex-allow-remote-32400
namespace: plex
labels:
app.kubernetes.io/name: plex
spec:
endpointSelector:
matchLabels:
app.kubernetes.io/name: plex
ingress:
- fromEntities:
- world
- cluster
- host
- remote-node
toPorts:
- ports:
- { port: "32400", protocol: TCP }
+2
View File
@@ -137,6 +137,8 @@ spec:
secretKeyRef: secretKeyRef:
name: plex-claim name: plex-claim
key: PLEX_CLAIM key: PLEX_CLAIM
- name: ADVERTISE_IP
value: ${PLEX_ADVERTISE_URL}
resources: resources:
limits: limits:
gpu.intel.com/i915: 1 gpu.intel.com/i915: 1
+8 -6
View File
@@ -1,6 +1,8 @@
# promtool rule-unit tests for the wave-0 per-app `<app>-down` SLI rules. # promtool rule-unit tests for the wave-0 per-app `<app>-down` SLI rules.
# Manifests under test: every PrometheusRule in apps/wave-0/ — gitea, jackett, pihole, plex, # Manifests under test: every PrometheusRule in apps/wave-0/ — gitea, jackett, pihole, plex,
# qbittorrent (container/Deployment) and vm-demo (KubeVirt VMI). The harness discovers this file by # qbittorrent (container/Deployment), pihole (container/StatefulSet — `availability.replicas: 2`, so
# its SLI reads kube_statefulset_status_replicas_ready; see schemas/renderer-contract.md
# `### availability`) and vm-demo (KubeVirt VMI). The harness discovers this file by
# the SUITE convention (`<dir>/tests/*.test.yaml`) and flattens those RENDERED manifests, so these # the SUITE convention (`<dir>/tests/*.test.yaml`) and flattens those RENDERED manifests, so these
# tests run against the exact expressions Flux applies, never a copy. # tests run against the exact expressions Flux applies, never a copy.
# #
@@ -41,7 +43,7 @@ tests:
values: '1+0x20' values: '1+0x20'
- series: 'kube_deployment_status_replicas_available{namespace="jackett", deployment="jackett"}' - series: 'kube_deployment_status_replicas_available{namespace="jackett", deployment="jackett"}'
values: '1+0x20' values: '1+0x20'
- series: 'kube_deployment_status_replicas_available{namespace="pihole", deployment="pihole"}' - series: 'kube_statefulset_status_replicas_ready{namespace="pihole", statefulset="pihole"}'
values: '1+0x20' values: '1+0x20'
- series: 'kube_deployment_status_replicas_available{namespace="plex", deployment="plex"}' - series: 'kube_deployment_status_replicas_available{namespace="plex", deployment="plex"}'
values: '1+0x20' values: '1+0x20'
@@ -81,7 +83,7 @@ tests:
values: '1+0x20' values: '1+0x20'
- series: 'kube_deployment_status_replicas_available{namespace="jackett", deployment="jackett"}' - series: 'kube_deployment_status_replicas_available{namespace="jackett", deployment="jackett"}'
values: '1+0x20' values: '1+0x20'
- series: 'kube_deployment_status_replicas_available{namespace="pihole", deployment="pihole"}' - series: 'kube_statefulset_status_replicas_ready{namespace="pihole", statefulset="pihole"}'
values: '1+0x20' values: '1+0x20'
- series: 'kube_deployment_status_replicas_available{namespace="plex", deployment="plex"}' - series: 'kube_deployment_status_replicas_available{namespace="plex", deployment="plex"}'
values: '0+0x20' values: '0+0x20'
@@ -132,7 +134,7 @@ tests:
values: '0+0x20' values: '0+0x20'
- series: 'kube_deployment_status_replicas_available{namespace="jackett", deployment="jackett"}' - series: 'kube_deployment_status_replicas_available{namespace="jackett", deployment="jackett"}'
values: '0+0x20' values: '0+0x20'
- series: 'kube_deployment_status_replicas_available{namespace="pihole", deployment="pihole"}' - series: 'kube_statefulset_status_replicas_ready{namespace="pihole", statefulset="pihole"}'
values: '0+0x20' values: '0+0x20'
- series: 'kube_deployment_status_replicas_available{namespace="plex", deployment="plex"}' - series: 'kube_deployment_status_replicas_available{namespace="plex", deployment="plex"}'
values: '1+0x20' values: '1+0x20'
@@ -170,10 +172,10 @@ tests:
severity: critical severity: critical
service: pihole service: pihole
namespace: pihole namespace: pihole
deployment: pihole statefulset: pihole
exp_annotations: exp_annotations:
summary: "pihole is down" summary: "pihole is down"
description: "pihole: its Deployment has no available/ready replica for 5m, or the signal is gone entirely (SLI: up, via kube_deployment_status_replicas_available)." description: "pihole: its StatefulSet has no available/ready replica for 5m, or the signal is gone entirely (SLI: up, via kube_statefulset_status_replicas_ready)."
- eval_time: 10m - eval_time: 10m
alertname: qbittorrent-down alertname: qbittorrent-down
exp_alerts: exp_alerts:
+187
View File
@@ -12,6 +12,42 @@ storage:
- name: config - name: config
size: 2Gi size: 2Gi
class: longhorn # replicated config state; DR-critical (docs/04 line 118; R-STATE-02/03) class: longhorn # replicated config state; DR-critical (docs/04 line 118; R-STATE-02/03)
# THE PVC WAS MOUNTED SOMEWHERE PIHOLE NEVER WRITES, AND SO HELD NOTHING AT ALL. Without an
# explicit mountPath the renderer defaults to /data/<name>, i.e. /data/config — but PiHole keeps
# every piece of its state in /etc/pihole. MEASURED on live prod 2026-10-04: `/etc/pihole` (7.1 M
# — gravity.db, pihole.toml, the query DB) was on the **overlay** filesystem, i.e. the
# container's EPHEMERAL layer, while `/dev/longhorn/pvc-849edb86...` sat mounted at
# /data/config holding `lost+found` and 24 K of nothing. Three consequences, all live until now:
# * every restart silently discarded PiHole's whole state, re-downloading 72 k gravity domains
# and regenerating the admin password hash;
# * `backup.policy: daily-offcluster` below has been faithfully backing up an EMPTY volume,
# which is worse than no backup because it reports success;
# * it is also why phase 1's password/adlist declaration mattered more than it first appeared —
# that state was not merely undeclared, it was ephemeral.
# This is the same class of bug catalog/plex.yaml's `config` entry documents ("Without this the
# PVC sat unused and Plex wrote to the container's EPHEMERAL layer").
#
# /etc/pihole IS THE IMAGE'S INTENDED MOUNT POINT, and an EMPTY volume there self-initialises.
# Verified in the running image, not assumed:
# * `/usr/bin/start.sh` (PID 1) calls `migrate_gravity`, whose `migrate_to_database()` creates
# the gravity database when `[ ! -e "$gravityDBfile" ]` — the same branch the postStart hook
# below relies on, and the branch that produced the current ephemeral copy.
# * FTL writes `pihole.toml` itself from the `FTLCONF_*` env above (that is what the
# `### CHANGED (env)` markers in it are).
# * NO `podSecurityContext.fsGroup` is needed and adding one would be inert: `start.sh` line 5
# is `chown -R pihole:pihole /etc/pihole/ /var/log/pihole/` and PID 1 runs as **uid 0**, so
# the image fixes ownership of a fresh root-owned volume before anything else starts. Same
# arrangement as plex's image managing its own /config ownership.
# * the image's own default for `files.macvendor` was moved OUT of this directory (to
# `/macvendor.db`), which is what a maintainer does to a path they expect to be a volume.
#
# WHY IT IS FIXED IN THIS BRANCH rather than left for its own: `availability.replicas: 2` renders
# per-replica volumeClaimTemplates, and with the wrong mountPath those would be two 2 Gi Longhorn
# volumes (times three Longhorn replicas each) holding nothing but `lost+found` while all state
# stayed ephemeral — paying the cost of persistence and getting none of it. It also REMOVES this
# change's main operational risk: with gravity.db persisted, a pod restart is cheap, instead of
# every restart re-downloading 72 k domains inside a wave that has a 5 m timeout.
mountPath: /etc/pihole
dependencies: [] # default-deny: reaches only DNS; it PROVIDES DNS (docs/03; R-NET-01/02) dependencies: [] # default-deny: reaches only DNS; it PROVIDES DNS (docs/03; R-NET-01/02)
# ------------------------------------------------------------------------------------------------ # ------------------------------------------------------------------------------------------------
# LAN SPLIT-HORIZON DNS — the half of R-DNS-03 that platform/coredns/coredns-custom.yaml defers to. # LAN SPLIT-HORIZON DNS — the half of R-DNS-03 that platform/coredns/coredns-custom.yaml defers to.
@@ -100,6 +136,53 @@ env:
# while resolution for the zone does not work. Confirmed both ways against the live image. # while resolution for the zone does not work. Confirmed both ways against the live image.
- name: FTLCONF_misc_dnsmasq_lines - name: FTLCONF_misc_dnsmasq_lines
value: "address=/${BASE_DOMAIN}/${GATEWAY_VIP};address=/unifi.${BASE_DOMAIN}/${UNIFI_L4_VIP};address=/crafty-mc.${BASE_DOMAIN}/${CRAFTY_L4_VIP};address=/pihole-dns.${BASE_DOMAIN}/${PIHOLE_DNS_VIP}" value: "address=/${BASE_DOMAIN}/${GATEWAY_VIP};address=/unifi.${BASE_DOMAIN}/${UNIFI_L4_VIP};address=/crafty-mc.${BASE_DOMAIN}/${CRAFTY_L4_VIP};address=/pihole-dns.${BASE_DOMAIN}/${PIHOLE_DNS_VIP}"
# THE ADMIN PASSWORD, previously the ONE operator-set value declared nowhere. Sourced from
# apps/wave-0/pihole-bootstrap-secret.sops.yaml (SOPS/age, same wave => same reconcile), which
# carries the full rationale and the measurement that found it.
#
# `webserver.api.password` takes CLEARTEXT and FTL hashes it itself into `webserver.api.pwhash`.
# Verified in the running image, not assumed: `pihole setpassword` is itself
# `setFTLConfigValue "webserver.api.password" "$PASSWORD"`, commented upstream as "pihole-FTL will
# automatically hash the password". So the BALLOON-SHA256 hash on the PVC is now a DERIVED artefact
# and this is its source of truth. Rotating the Secret rotates the password.
- name: FTLCONF_webserver_api_password
valueFrom:
secretKeyRef:
name: pihole-bootstrap
key: webui-password
availability:
# TWO REPLICAS, ON DIFFERENT NODES. LAN DNS is a critical network service and it was ONE pod on
# ONE node. Measured 2026-10-04, that cost more than "until it reschedules":
# * the node running the pod dies -> ~40s to mark it NotReady, then `tolerationSeconds: 300`
# before the pod is even evicted, then reschedule, then Longhorn must force-detach the RWO
# volume from a dead node and reattach it. Roughly 6-10 MINUTES with no LAN resolution.
# * the node holding the `pihole-dns-*` L2 lease dies -> Cilium re-elects an announcer, tens of
# seconds. (These were DIFFERENT nodes: lease on k3s-prod-2, pod on k3s-prod-1. Two of three
# nodes were single points of failure for LAN DNS, with wildly different blast radii.)
# The Services already tolerate this: `externalTrafficPolicy: Cluster` on the DNS LoadBalancers
# (apps/wave-0/pihole-dns.yaml) means the L2 lease holder forwards to ANY ready backend, so a
# second replica is picked up with no change there.
#
# WHAT THIS DOES NOT FIX, and it is the bigger risk: LAN DNS still depends on the CLUSTER. etcd
# quorum loss, a Cilium regression, a Longhorn problem or a bad reconcile takes DNS down
# everywhere regardless of replica count. The only thing that removes that dependency is a
# resolver outside the cluster carrying the same `address=` lines. Considered and not chosen
# (operator decision, 2026-10-04); see decisions/2026-10-04-pihole-multi-replica.md.
#
# THE PREREQUISITE WAS DONE FIRST, and this field would have been actively harmful without it. A
# replica gets a FRESH volume, and until 2026-10-04 PiHole's admin password and adlists lived only
# on the PVC — so replica 1 would have come up SERVING DNS AND BLOCKING NOTHING, with a different
# password, and answers would have varied by which pod replied. Both are now declared (the
# password as a SOPS Secret -> FTLCONF_webserver_api_password; the adlists reconciled into
# gravity.db by the postStart hook below), which is what makes a fresh replica identical to its
# sibling. See decisions/2026-10-04-pihole-declare-state.md.
#
# WHY 2 AND NOT 3. Two tolerates the loss of any single node, which is the stated goal, and leaves
# a spare node for the evicted replica to land on under the HARD anti-affinity the renderer emits.
# Three would pin one replica per node with no spare, so a single node failure would leave a
# replica permanently Pending and — `apps-wave-0` being `wait: true` — stall the app tier for as
# long as the node was down. Two is the count that degrades gracefully here.
replicas: 2
ingressRoutes: ingressRoutes:
- host: pihole.${BASE_DOMAIN} - host: pihole.${BASE_DOMAIN}
port: 80 # admin web UI, protected at the Gateway by forward-auth (docs/09) port: 80 # admin web UI, protected at the Gateway by forward-auth (docs/09)
@@ -114,6 +197,110 @@ auth:
# rather than a renderer constant: the measurement that justifies the flag on two apps is # rather than a renderer constant: the measurement that justifies the flag on two apps is
# evidence about those two apps. Its oauth2-proxy log holds 0 unauthenticated requests across # evidence about those two apps. Its oauth2-proxy log holds 0 unauthenticated requests across
# the current pod's whole 23h lifetime (measured 2026-10-01), so there is nothing to act on. # the current pod's whole 23h lifetime (measured 2026-10-01), so there is nothing to act on.
lifecycle:
# LEVEL-TRIGGERED ADLIST ASSERTION, run on EVERY container start. Same pattern, and the same
# reasoning, as catalog/qbittorrent.yaml's postStart: desired state lives in git and is
# RE-ASSERTED unconditionally rather than set once by hand.
#
# WHY THIS IS NEEDED AT ALL — the blocklists were NOT reproducible from git. Measured on live prod
# 2026-10-04: `gravity.db` held exactly ONE adlist (StevenBlack's hosts, enabled) and 72,234
# gravity domains, and NOTHING in this repo named it. Worse, a FRESH database does not seed it:
# the image's own schema template `/etc/.pihole/advanced/Templates/gravity.db.sql` creates the
# `adlist` table and inserts NO rows into it (grepped in the running image — there is no
# `INSERT INTO adlist` at all). So a rebuild from git, or a replica with a new PVC, would come up
# SERVING DNS AND BLOCKING NOTHING, silently and with every object reporting healthy.
#
# WHY A postStart HOOK AND NOT A FILE. PiHole v6 keeps adlists as DB rows, not config. The
# `/etc/pihole/adlists.list` file still exists in `gravity.sh` but is MIGRATION-ONLY: its import
# sits inside `migrate_to_database()`, guarded by `if [ ! -e "$gravityDBfile" ]`, so it fires only
# while CREATING a database and never again on an existing one. A ConfigMap mounted there would
# therefore be silently ignored on every pod this cluster currently runs. There is also no
# `pihole adlist` CLI subcommand (only allow/deny for domains), so SQL against the DB is the
# actual interface. FTL ships an embedded shell (`pihole-FTL sqlite3`, SQLite 3.53.1) so no extra
# tooling is needed in the image.
#
# IT RECONCILES, IT DOES NOT JUST ADD: adlists present in the DB but absent from DECLARED below are
# DISABLED (not deleted — deleting cascades to `gravity` rows and would force a full re-download of
# everything on a typo). So this list is the source of truth in both directions, and `pihole -g`
# runs ONLY when something actually changed, which keeps the steady-state start free of a 70k-domain
# rebuild.
#
# NO BRACED DOLLAR EXPANSION ANYWHERE IN THIS SCRIPT, DELIBERATELY — the same contract
# catalog/qbittorrent.yaml documents at length. apps-wave-0 declares postBuild.substituteFrom
# cluster-vars, so Flux runs envsubst over this whole manifest at reconcile time; a `${VAR}` form
# would behave differently on the cluster than under a plain `kubectl apply` of the golden. Bare
# `$VAR` and `$(cmd)` are untouched by envsubst and so behave identically however this is run.
# `render.py`'s assert_substitution_safe refuses to emit a manifest that breaks this.
postStart:
exec:
command:
- /bin/bash
- -c
- |
# Assert the declared adlists in gravity.db. Idempotent: steady state writes nothing and
# does NOT run a gravity rebuild.
set -u
GRAVITY=/etc/pihole/gravity.db
# THE DECLARED SET — one URL per line, the source of truth for what PiHole blocks.
# To add a list: add a line here, commit, let Flux reconcile. Nothing else to do.
DECLARED='https://raw.githubusercontent.com/StevenBlack/hosts/master/hosts'
# On a fresh PVC, FTL creates gravity.db a moment after the container starts. Wait, bounded,
# and NEVER block or fail the start: a missing DB here must not crashloop DNS for the LAN.
i=0
while [ ! -s "$GRAVITY" ] && [ "$i" -lt 90 ]; do sleep 2; i=$(expr $i + 1); done
if [ ! -s "$GRAVITY" ]; then
echo "pihole-adlists: gravity.db absent after 180s - leaving adlists untouched" >&2
exit 0
fi
sql() { pihole-FTL sqlite3 "$GRAVITY" "$1"; }
CHANGED=0
# 1) Every declared URL must be present AND enabled.
echo "$DECLARED" | while IFS= read -r url; do
[ -n "$url" ] || continue
printf '%s\n' "$url"
done > /tmp/declared.txt
while IFS= read -r url; do
[ -n "$url" ] || continue
# Single quotes inside a URL would break this SQL; adlist URLs do not contain them.
have=$(sql "select count(*) from adlist where address='$url';")
if [ "$have" = "0" ]; then
echo "pihole-adlists: adding $url"
sql "insert into adlist (address,enabled,comment) values ('$url',1,'declared in catalog/pihole.yaml');"
CHANGED=1
else
en=$(sql "select enabled from adlist where address='$url';")
if [ "$en" != "1" ]; then
echo "pihole-adlists: re-enabling $url"
sql "update adlist set enabled=1 where address='$url';"
CHANGED=1
fi
fi
done < /tmp/declared.txt
# 2) Anything enabled in the DB but NOT declared gets disabled (never deleted - see above).
sql "select address from adlist where enabled=1;" | while IFS= read -r addr; do
[ -n "$addr" ] || continue
if ! grep -qxF "$addr" /tmp/declared.txt; then
echo "pihole-adlists: disabling undeclared $addr"
sql "update adlist set enabled=0 where address='$addr';"
echo changed >> /tmp/adlist-changed
fi
done
[ -s /tmp/adlist-changed ] && CHANGED=1
rm -f /tmp/adlist-changed /tmp/declared.txt
# 3) Rebuild gravity ONLY if the declared set actually moved.
if [ "$CHANGED" = "1" ]; then
echo "pihole-adlists: declared set changed - running gravity update"
pihole -g || echo "pihole-adlists: gravity update failed; existing gravity.db retained" >&2
else
echo "pihole-adlists: already matches the declared set - nothing to do"
fi
exit 0
update: update:
channel: stable # R-UPD-01 channel: stable # R-UPD-01
range: ">=2024.0.0" range: ">=2024.0.0"
+48 -8
View File
@@ -72,14 +72,54 @@ env:
secretKeyRef: secretKeyRef:
name: plex-claim name: plex-claim
key: PLEX_CLAIM key: PLEX_CLAIM
# ADVERTISE_IP ("Custom server access URLs") is DEFERRED, not accidentally omitted. It tells Plex # ADVERTISE_IP ("Custom server access URLs") — NOW SET. This replaces a DEFERRAL note that stood
# which URL to advertise to plex.tv for REMOTE clients. The only candidate is # here until 2026-10-04, and the deferral's premise has changed: it weighed only ONE candidate,
# https://plex.home.keithjackson.dev, but that host resolves via split-horizon DNS to the INTERNAL # `https://plex.home.keithjackson.dev` through the L7 Gateway. The operator chose the NATIVE L4
# Gateway VIP (conformance/tests/l2-behavioral/dns-internal-resolution), and both its public # path instead on 2026-10-03 (apps/wave-0/plex-remote.yaml) so streams go straight to
# reachability and whether the TLS-terminating Cilium Gateway proxies Plex's 32400 API correctly for # ${PLEX_L4_VIP}:32400 and bypass the Envoy hop. What was still missing was a URL whose TLS
# remote access are UNVERIFIED. Advertising a wrong/internal-only URL breaks remote access for ALL # CERTIFICATE validates — and getting that wrong is what took the service down.
# clients, so per "prefer safety over completeness" it is left unset. FOLLOW-UP: once remote #
# reachability through the Gateway is confirmed, set ADVERTISE_IP: "https://plex.home.keithjackson.dev:443". # THE VALUE IS A `plex.direct` NAME, NOT THE RAW VIP, AND THAT IS THE WHOLE POINT. Plex serves
# 32400 with its own certificate; measured live 2026-10-04 it carries exactly one name:
# CN = *.<serverhash>.plex.direct (one SAN, no IP SANs at all)
# so `https://<ip>:32400` can NEVER validate. `<dashed-ip>.<serverhash>.plex.direct` is Plex's own
# mechanism for this: it is PUBLIC DNS that resolves to the embedded address, so the name points at
# the LAN VIP while the wildcard cert above matches it. Measured 2026-10-04 with FULL verification
# (no `curl -k`):
# https://192-168-2-24.<hash>.plex.direct:32400/identity -> 200, TLS verify OK
# https://192.168.2.24:32400/identity -> 000, cert validation FAILED
#
# THIS FIELD EXISTS BECAUSE AUTO-DISCOVERY CANNOT WORK HERE. Left empty, Plex publishes the
# addresses it can see itself — which from a pod is the overlay IP (`10.0.2.136`), useless to a LAN
# client. The VIP has to be advertised explicitly; there is no "just clear it" fix.
#
# WHAT WENT WRONG, recorded so it is not re-introduced by hand. customConnections OVERRIDES Plex's
# own publishing, and on 2026-10-04 it held two hand-typed URLs, both uncompletable:
# - `https://192.168.2.24:32400` -> cert cannot cover an IP. Measured: a storm of
# `CERT: incomplete TLS handshake ... sslv3 alert certificate unknown` in Plex's log every few
# seconds, from REAL LAN clients arriving through the VIP.
# - `https://plex.home.keithjackson.dev:32400` -> nothing listens. The Gateway serves this host on
# 443; measured `http=000` against 192.168.2.20:32400.
# With every advertised connection dead, plex.tv had nothing publishable, sat at
# `mapping state 'Mapped - Not Published'`, fell back to Plex Relay, and THE SERVER DISAPPEARED
# FROM THE ACCOUNT — clients reported "not authorized".
#
# DECLARING IT HERE rather than in the web UI is the durable half of the fix. The image's
# /etc/cont-init.d/40-plex-first-run runs `setPref "customConnections" "${ADVERTISE_IP}"` (line 127)
# OUTSIDE the PLEX_CLAIM/PlexOnlineToken guard, and its `/.firstRunComplete` marker sits on the
# container's OVERLAY fs, not the /config PVC — so this is re-applied on EVERY pod start and git,
# not a form field, owns the value. Editing this env rolls the Deployment, which is what applies it.
#
# TWO LIMITS, stated rather than discovered later:
# - THE HASH IS SERVER IDENTITY, which is why the whole URL is a cluster-var and not built from
# ${PLEX_L4_VIP}: envsubst cannot dash an IP, and the hash is not derivable from anything in
# this tree. It is not a secret (it ships in the cert and in the published connection list), but
# if Plex reissues under a new hash this URL goes stale and must be re-read from the live cert.
# - THIS RESTORES LAN CLIENTS AND THE ACCOUNT LISTING, NOT WAN. Remote clients still need the
# off-repo tcp/32400 port-forward (runbooks/plex-remote-access.md). Once that exists, the WAN
# twin of this URL can be appended comma-separated — customConnections takes a list.
- name: ADVERTISE_IP
value: ${PLEX_ADVERTISE_URL}
# HARDWARE TRANSCODING — the host iGPU's render device (schema 1.8.0 `hardware`; R-PLAT-02). # HARDWARE TRANSCODING — the host iGPU's render device (schema 1.8.0 `hardware`; R-PLAT-02).
# INTENT ONLY, AND THE MECHANISM DELIBERATELY DOES NOT LIVE HERE. This says "this workload needs an # INTENT ONLY, AND THE MECHANISM DELIBERATELY DOES NOT LIVE HERE. This says "this workload needs an
# Intel Quick Sync render device"; it does NOT name a device path and it does NOT name a resource. # Intel Quick Sync render device"; it does NOT name a device path and it does NOT name a resource.
+301 -10
View File
@@ -272,7 +272,15 @@ def apply_defaults(sd: dict) -> dict:
# object that actually runs on the cluster is not the one this SD renders (keycloak: the # object that actually runs on the cluster is not the one this SD renders (keycloak: the
# Keycloak operator runs a StatefulSet, so a Deployment-shaped rule would `absent()` forever). # Keycloak operator runs a StatefulSet, so a Deployment-shaped rule would `absent()` forever).
lw = dict(obs.get("livenessWorkload") or {}) lw = dict(obs.get("livenessWorkload") or {})
lw.setdefault("kind", "VirtualMachineInstance" if s["kind"] == "vm" else "Deployment") # The default must track what is ACTUALLY rendered, or the `up` SLI silently dies: a
# Deployment-shaped rule against a StatefulSet `absent()`s forever, which is an alert that can
# never fire — the exact failure mode the keycloak override was added for. Deriving it from
# `availability.replicas` means bumping the replica count cannot leave a stale rule behind.
lw.setdefault(
"kind",
"VirtualMachineInstance" if s["kind"] == "vm"
else ("StatefulSet" if _is_statefulset(s) else "Deployment"),
)
lw.setdefault("name", s["name"]) lw.setdefault("name", s["name"])
obs["livenessWorkload"] = lw obs["livenessWorkload"] = lw
s["observability"] = obs s["observability"] = obs
@@ -475,6 +483,37 @@ def r_bulk_pvs(s: dict) -> list:
return out return out
def _replicas(s: dict) -> int:
"""Declared replica count (schema 1.10.0 `availability.replicas`). Default 1."""
return int((s.get("availability") or {}).get("replicas", 1) or 1)
def _is_statefulset(s: dict) -> bool:
"""True when this container workload must render a StatefulSet rather than a Deployment.
THE DECIDING CONSTRAINT IS THE VOLUME, not a preference. A longhorn storage entry renders
ReadWriteOnce (r_pvcs), and one RWO PVC cannot be attached by pods on two different nodes --
which is exactly what `availability.replicas > 1` plus the node anti-affinity below asks for.
A 2-replica Deployment over a shared RWO claim does not degrade, it simply never schedules the
second pod. A StatefulSet's volumeClaimTemplates give each replica its OWN claim, which is the
only shape that satisfies both at once.
A replicas-1 service keeps rendering a Deployment so every pre-existing golden is byte-identical.
"""
return s["kind"] == "container" and _replicas(s) > 1
def _sts_claim_volumes(s: dict) -> list:
"""Storage entries that become per-replica volumeClaimTemplates on a StatefulSet.
Only the dynamically-provisioned (longhorn) entries. A `bulk` entry is a STATIC, pre-bound NFS
PV over data that already exists outside the cluster and is shared read-only by every consumer
(r_bulk_pvs) -- per-replica copies of it are neither possible nor wanted, so it stays a
standalone PVC and an ordinary pod volume.
"""
return [v for v in s["storage"] if v.get("class", "longhorn") != "bulk"]
def r_pvcs(s: dict) -> list: def r_pvcs(s: dict) -> list:
"""One PVC per storage entry (R-STATE-01/02/04). """One PVC per storage entry (R-STATE-01/02/04).
@@ -482,8 +521,15 @@ def r_pvcs(s: dict) -> list:
bulk -> the STATIC external NFS PV rendered by r_bulk_pvs, pre-bound by volumeName. bulk -> the STATIC external NFS PV rendered by r_bulk_pvs, pre-bound by volumeName.
""" """
out = [] out = []
# On a StatefulSet the longhorn claims are NOT standalone objects — they are
# volumeClaimTemplates, so each replica gets its own (see _is_statefulset). Emitting both would
# leave an orphan PVC that nothing mounts and that `prune` would later delete out from under
# nobody. `bulk` is unaffected and still rendered here.
sts = _is_statefulset(s)
for vol in s["storage"]: for vol in s["storage"]:
cls = vol.get("class", "longhorn") cls = vol.get("class", "longhorn")
if sts and cls != "bulk":
continue
if cls == "bulk": if cls == "bulk":
# Mirror image of the PV: the same explicitly-empty class (so nothing dynamically # Mirror image of the PV: the same explicitly-empty class (so nothing dynamically
# provisions), the same access mode, and volumeName completing the two-sided binding. # provisions), the same access mode, and volumeName completing the two-sided binding.
@@ -564,6 +610,12 @@ def r_deployment(s: dict) -> dict:
if vol.get("readOnly"): if vol.get("readOnly"):
mount["readOnly"] = True mount["readOnly"] = True
volume_mounts.append(mount) volume_mounts.append(mount)
# On a StatefulSet a longhorn volume is supplied by its volumeClaimTemplate, whose
# metadata.name IS the pod volume name. Adding it to pod.volumes as well is a conflict
# (duplicate volume name), so it is skipped here and emitted below. The MOUNT is unchanged —
# the container cannot tell the difference, which is what keeps this transparent to the app.
if _is_statefulset(s) and vol.get("class", "longhorn") != "bulk":
continue
volumes.append( volumes.append(
{ {
"name": vol["name"], "name": vol["name"],
@@ -661,20 +713,80 @@ def r_deployment(s: dict) -> dict:
if ann: if ann:
tmpl_meta["annotations"] = ann tmpl_meta["annotations"] = ann
spec = {"replicas": 1} sts = _is_statefulset(s)
# An app with persistent storage mounts a ReadWriteOnce Longhorn PVC. The default
# RollingUpdate strategy tries to start the NEW pod before terminating the old one, but # NODE ANTI-AFFINITY, and it is REQUIRED rather than preferred. `availability.replicas > 1`
# the old pod still holds the RWO volume -> the new pod is stuck ContainerCreating and # exists to survive the loss of one node; `preferred` would let both replicas land on the same
# the rollout deadlocks (single-replica app can never hand the volume over). Recreate # node and quietly deliver none of that, with every object reporting healthy. The cost is real
# terminates the old pod first, freeing the PVC for the new one (R-STATE-01/02). # and is accepted: with N replicas the workload needs N schedulable nodes, so on a 3-node
if s["storage"]: # cluster losing TWO nodes leaves a replica Pending and — because `apps-wave-0` is `wait: true`
# with `apps-wave-1` dependsOn it — STALLS THE APP TIER. That coincides with having already lost
# etcd quorum on a 3-node control plane, i.e. the cluster is not reconciling anything at that
# point anyway, so the stall is a symptom rather than a new failure.
if sts:
pod_spec["affinity"] = {
"podAntiAffinity": {
"requiredDuringSchedulingIgnoredDuringExecution": [
{
"labelSelector": {
"matchLabels": {"app.kubernetes.io/name": s["name"]}
},
"topologyKey": "kubernetes.io/hostname",
}
]
}
}
spec = {"replicas": _replicas(s)}
if sts:
# serviceName is a required StatefulSet field. It points at the service rendered by
# r_service; that Service is a normal ClusterIP rather than headless, so per-pod DNS
# (<pod>.<svc>) does NOT resolve — and nothing here needs it. These replicas are
# interchangeable resolvers behind one VIP, not peers that address each other.
spec["serviceName"] = s["name"]
# Parallel, not the OrderedReady default. OrderedReady starts replica N+1 only after N is
# Ready, so a cold start costs the sum of every replica's first-boot work instead of the
# max — and `apps-wave-0` has `timeout: 5m`. There is no ordering requirement between
# replicas to protect (no leader, no migration, no shared volume), so serialising buys
# nothing and risks the wave timing out on a rebuild.
spec["podManagementPolicy"] = "Parallel"
elif s["storage"]:
# An app with persistent storage mounts a ReadWriteOnce Longhorn PVC. The default
# RollingUpdate strategy tries to start the NEW pod before terminating the old one, but
# the old pod still holds the RWO volume -> the new pod is stuck ContainerCreating and
# the rollout deadlocks (single-replica app can never hand the volume over). Recreate
# terminates the old pod first, freeing the PVC for the new one (R-STATE-01/02).
#
# A StatefulSet needs none of this and cannot express it: each replica owns its own claim,
# so a rolling update hands nothing over, and `strategy` is not a StatefulSet field at all.
spec["strategy"] = {"type": "Recreate"} spec["strategy"] = {"type": "Recreate"}
spec["selector"] = {"matchLabels": {"app.kubernetes.io/name": s["name"]}} spec["selector"] = {"matchLabels": {"app.kubernetes.io/name": s["name"]}}
spec["template"] = {"metadata": tmpl_meta, "spec": pod_spec} spec["template"] = {"metadata": tmpl_meta, "spec": pod_spec}
if sts:
# Per-replica claims. metadata.name MUST equal the pod volume name the container mounts
# (see the volumes loop above); the resulting PVCs are <name>-<sts>-<ordinal>, e.g.
# config-pihole-0. Same tier and access mode a standalone longhorn PVC gets from r_pvcs —
# this changes WHO owns the claim, never what it is.
tmpls = []
for vol in _sts_claim_volumes(s):
vspec = {"accessModes": ["ReadWriteOnce"], "storageClassName": "longhorn"}
if vol.get("size"):
vspec["resources"] = {"requests": {"storage": vol["size"]}}
tmpls.append(
{
"metadata": {
"name": vol["name"],
"labels": {"app.kubernetes.io/name": s["name"]},
},
"spec": vspec,
}
)
if tmpls:
spec["volumeClaimTemplates"] = tmpls
return { return {
"apiVersion": "apps/v1", "apiVersion": "apps/v1",
"kind": "Deployment", "kind": "StatefulSet" if sts else "Deployment",
"metadata": { "metadata": {
"name": s["name"], "name": s["name"],
"namespace": s["name"], "namespace": s["name"],
@@ -684,6 +796,35 @@ def r_deployment(s: dict) -> dict:
} }
def r_pdb(s: dict):
"""PodDisruptionBudget for a multi-replica workload (availability.replicas > 1).
minAvailable 1, not `maxUnavailable: 1`. The budget's job here is to stop a VOLUNTARY
disruption — a node drain for maintenance, a cluster upgrade — from taking the last replica
with it; `minAvailable: 1` says that whatever else happens, one must keep serving. It does
NOT protect against involuntary disruption (a node dying), which is what the anti-affinity
and the replica count are for.
Rendered only when replicas > 1: a PDB over a single-replica workload is actively harmful, as
`minAvailable: 1` would then block every drain of its node forever.
"""
if not _is_statefulset(s):
return None
return {
"apiVersion": "policy/v1",
"kind": "PodDisruptionBudget",
"metadata": {
"name": s["name"],
"namespace": s["name"],
"labels": {"app.kubernetes.io/name": s["name"]},
},
"spec": {
"minAvailable": 1,
"selector": {"matchLabels": {"app.kubernetes.io/name": s["name"]}},
},
}
def r_service(s: dict): def r_service(s: dict):
ports = _service_ports(s) ports = _service_ports(s)
# A declared metrics endpoint becomes a NAMED Service port, because that name is the only # A declared metrics endpoint becomes a NAMED Service port, because that name is the only
@@ -1817,7 +1958,13 @@ def render(sd: dict, image_automation: bool = True, inbound: list | None = None)
) )
for pvc in r_pvcs(s): for pvc in r_pvcs(s):
docs.append((f"PVC {pvc['metadata']['name']} (R-STATE)", pvc)) docs.append((f"PVC {pvc['metadata']['name']} (R-STATE)", pvc))
docs.append(("Deployment (R-PLAT-02)", r_deployment(s))) wl = r_deployment(s)
docs.append((f"{wl['kind']} (R-PLAT-02)", wl))
pdb = r_pdb(s)
if pdb:
docs.append(
("PodDisruptionBudget — keep one replica through a drain (availability.replicas)", pdb)
)
svc = r_service(s) svc = r_service(s)
if svc: if svc:
docs.append(("Service", svc)) docs.append(("Service", svc))
@@ -2002,6 +2149,24 @@ EXTRA_UNITS: dict = {
"pihole-dns.yaml", "pihole-dns.yaml",
], ],
}, },
# Plex's remote-access exposure: the raw tcp/32400 LoadBalancer Service on a pinned VIP, plus the
# CiliumNetworkPolicy that admits off-cluster clients to it (apps/wave-0/plex-remote.yaml).
# `above: False` co-locates it in plex's OWN wave — these are the plex pod's own Service and its
# own policy, applied in the same wave as the Deployment they select, exactly as the rendered
# Service and CNPs in plex.yaml are. Nothing in a higher wave gates on it.
#
# It is a non-catalog unit for the same reason pihole-dns is: the ServiceDefinition schema cannot
# express a LoadBalancer Service or a pinned lbipam VIP (additionalProperties is false, and
# `ingressRoutes` only renders HTTPRoutes on the L7 Gateway, which cannot carry Plex's raw port).
# Plex's own settings stay in the catalog as env on catalog/plex.yaml; the only thing living
# outside it is the exposure the schema has no word for.
"plex-remote": {
"anchor": "plex",
"above": False,
"files": [
"plex-remote.yaml",
],
},
} }
@@ -2248,6 +2413,132 @@ def _selftest() -> int:
check("Namespace" in kinds, "container: missing Namespace") check("Namespace" in kinds, "container: missing Namespace")
check("NetworkPolicy" in kinds, "container: missing default-deny NetworkPolicy") check("NetworkPolicy" in kinds, "container: missing default-deny NetworkPolicy")
check("Deployment" in kinds, "container: missing Deployment") check("Deployment" in kinds, "container: missing Deployment")
check(
"PodDisruptionBudget" not in kinds,
"replicas-1 container must render NO PodDisruptionBudget (minAvailable 1 over a single "
"replica blocks every drain of its node forever)",
)
# 1b) availability.replicas (schema 1.10.0). The DEFAULT path must be untouched, and the >1
# path must change workload kind, claim ownership, spreading, budget AND the SLI metric
# together — each of these has a silent-failure mode if it is the one that gets forgotten.
base_av = {
"name": "av",
"source": {"image": "nginx:1"},
"storage": [{"name": "config", "size": "1Gi"}],
"observability": {"metrics": True, "slis": ["up"]},
}
one = render({**base_av, "availability": {"replicas": 1}})
one_kinds = [d[1]["kind"] for d in one]
check(
"Deployment" in one_kinds and "StatefulSet" not in one_kinds,
"availability.replicas=1 must still render a Deployment (back-compat)",
)
check(
"PersistentVolumeClaim" in one_kinds,
"availability.replicas=1 must still render a standalone PVC",
)
check(
"PodDisruptionBudget" not in one_kinds,
"availability.replicas=1 must render no PodDisruptionBudget",
)
many = render({**base_av, "availability": {"replicas": 2}})
many_kinds = [d[1]["kind"] for d in many]
check(
"StatefulSet" in many_kinds and "Deployment" not in many_kinds,
"availability.replicas>1 must render a StatefulSet, not a Deployment (a shared RWO claim "
"cannot be attached on two nodes, so a multi-replica Deployment never schedules)",
)
check(
"PersistentVolumeClaim" not in many_kinds,
"availability.replicas>1 must NOT also render a standalone longhorn PVC — it would be an "
"orphan that nothing mounts",
)
sts = next(d[1] for d in many if d[1]["kind"] == "StatefulSet")
check(sts["spec"].get("replicas") == 2, "StatefulSet must carry the declared replica count")
check(
"strategy" not in sts["spec"],
"StatefulSet must not carry `strategy` (not a StatefulSet field; Recreate is a "
"Deployment-only workaround for handing over one RWO volume)",
)
check(
sts["spec"].get("podManagementPolicy") == "Parallel",
"StatefulSet must set podManagementPolicy=Parallel — OrderedReady serialises first-boot "
"work across replicas and apps-wave-0 has a 5m timeout",
)
check(sts["spec"].get("serviceName") == "av", "StatefulSet must set serviceName")
tmpls = sts["spec"].get("volumeClaimTemplates") or []
check(
[t["metadata"]["name"] for t in tmpls] == ["config"],
"StatefulSet volumeClaimTemplate name must equal the pod volume name the container mounts, "
"or the pod gets a duplicate/unresolvable volume",
)
check(
tmpls and tmpls[0]["spec"]["accessModes"] == ["ReadWriteOnce"]
and tmpls[0]["spec"]["storageClassName"] == "longhorn",
"StatefulSet claim template must keep the same tier/access mode as the standalone PVC",
)
sts_vols = {v["name"] for v in sts["spec"]["template"]["spec"].get("volumes", [])}
check(
"config" not in sts_vols,
"a claim-template volume must NOT also appear in pod.volumes (duplicate volume name)",
)
mounts = sts["spec"]["template"]["spec"]["containers"][0].get("volumeMounts") or []
check(
any(m["name"] == "config" for m in mounts),
"the container must still mount the volume by name on a StatefulSet (transparent to the app)",
)
aff = (sts["spec"]["template"]["spec"].get("affinity") or {}).get("podAntiAffinity") or {}
req = aff.get("requiredDuringSchedulingIgnoredDuringExecution") or []
check(
req and req[0].get("topologyKey") == "kubernetes.io/hostname",
"availability.replicas>1 must render REQUIRED per-node anti-affinity — `preferred` can put "
"every replica on one node and deliver none of the intended node-failure tolerance",
)
pdbs = [d[1] for d in many if d[1]["kind"] == "PodDisruptionBudget"]
check(len(pdbs) == 1, "availability.replicas>1 must render exactly one PodDisruptionBudget")
check(
pdbs and pdbs[0]["spec"].get("minAvailable") == 1,
"PodDisruptionBudget must be minAvailable=1 (keep one replica serving through a drain)",
)
pr_many = next((d[1] for d in many if d[1]["kind"] == "PrometheusRule"), None)
check(
pr_many is not None
and "kube_statefulset_status_replicas_ready"
in pr_many["spec"]["groups"][0]["rules"][0]["expr"],
"the up SLI must follow the rendered workload kind — a Deployment-shaped rule against a "
"StatefulSet absent()s forever and can never fire",
)
# A bulk volume is shared external NFS: it must stay a standalone PVC even on a StatefulSet.
mixed = render(
{
**base_av,
"availability": {"replicas": 2},
"storage": [
{"name": "config", "size": "1Gi"},
{"name": "media", "class": "bulk", "export": "/mnt/x", "size": "1Ti"},
],
}
)
m_sts = next(d[1] for d in mixed if d[1]["kind"] == "StatefulSet")
check(
[t["metadata"]["name"] for t in m_sts["spec"]["volumeClaimTemplates"]] == ["config"],
"only longhorn volumes become claim templates; a bulk share must not be per-replica",
)
check(
any(
d[1]["kind"] == "PersistentVolumeClaim"
and d[1]["metadata"]["name"] == "av-media"
for d in mixed
),
"a bulk PVC must still be rendered standalone on a StatefulSet",
)
check(
"media" in {v["name"] for v in m_sts["spec"]["template"]["spec"].get("volumes", [])},
"a bulk volume must still appear in pod.volumes on a StatefulSet",
)
ns = next(d[1] for d in docs if d[1]["kind"] == "Namespace") ns = next(d[1] for d in docs if d[1]["kind"] == "Namespace")
check( check(
+41 -1
View File
@@ -100,7 +100,8 @@ data:
# platform/keycloak/postgres-cluster.yaml but is rendered by platform-config, which is the ONLY # platform/keycloak/postgres-cluster.yaml but is rendered by platform-config, which is the ONLY
# tier that lists it), crafty (CRAFTY_L4_VIP), apps-wave-0 (nextcloud-db + semaphore-db: # tier that lists it), crafty (CRAFTY_L4_VIP), apps-wave-0 (nextcloud-db + semaphore-db:
# S3_BACKUP_ENDPOINT, CNPG_BACKUP_PATH; pihole + pihole-dns: PIHOLE_DNS_VIP, LAN_CIDR, plus # S3_BACKUP_ENDPOINT, CNPG_BACKUP_PATH; pihole + pihole-dns: PIHOLE_DNS_VIP, LAN_CIDR, plus
# GATEWAY_VIP/UNIFI_L4_VIP/CRAFTY_L4_VIP read BY pihole to author its LAN split-horizon answers), # GATEWAY_VIP/UNIFI_L4_VIP/CRAFTY_L4_VIP read BY pihole to author its LAN split-horizon answers;
# plex-remote: PLEX_L4_VIP; plex: PLEX_ADVERTISE_URL),
# velero (S3_BACKUP_ENDPOINT, S3_BACKUP_REGION, # velero (S3_BACKUP_ENDPOINT, S3_BACKUP_REGION,
# VELERO_BACKUP_BUCKET, VELERO_BACKUP_PREFIX), apps-vms (UNIFI_L4_VIP). A ${TOKEN} in an # VELERO_BACKUP_BUCKET, VELERO_BACKUP_PREFIX), apps-vms (UNIFI_L4_VIP). A ${TOKEN} in an
# UNSUBSTITUTED path would ship the literal string into the cluster. # UNSUBSTITUTED path would ship the literal string into the cluster.
@@ -175,6 +176,45 @@ data:
# dev -> 192.168.1.56 (base default; next free after crafty .55 in dev's .53-.60 pool) # dev -> 192.168.1.56 (base default; next free after crafty .55 in dev's .53-.60 pool)
# prod -> 192.168.2.23 (next free after crafty .22 in prod's .20-.30 pool; see clusters/prod) # prod -> 192.168.2.23 (next free after crafty .22 in prod's .20-.30 pool; see clusters/prod)
PIHOLE_DNS_VIP: "192.168.1.56" # PiHole: authoritative LAN DNS for ${BASE_DOMAIN} PIHOLE_DNS_VIP: "192.168.1.56" # PiHole: authoritative LAN DNS for ${BASE_DOMAIN}
# Plex's remote-access listener: raw tcp/32400 for REMOTE Plex clients (apps/wave-0/plex-remote.yaml).
# A FOURTH pinned L4 VIP, for the usual reason — the `shared` Gateway is an L7 HTTPS terminator and
# cannot carry Plex's own TLS. Plex clients do not resolve `plex.${BASE_DOMAIN}`; they fetch this
# server's address from plex.tv, so the Gateway's L7 path (which still serves the web UI, and was
# measured working) cannot put the server on a client's connection list at all.
#
# PINNED, AND THE PIN IS LOAD-BEARING OFF-REPO: the SOHO router forwards WAN tcp/32400 to this
# address by hand. A VIP taken from the pool head would silently move on a reschedule and break
# remote access with nothing in-cluster looking wrong. See runbooks/plex-remote-access.md.
#
# dev -> 192.168.1.57 (base default; next free after pihole-dns .56 in dev's .53-.60 pool)
# prod -> 192.168.2.24 (next free after pihole-dns .23 in prod's .20-.30 pool; see clusters/prod)
PLEX_L4_VIP: "192.168.1.57" # Plex: tcp/32400 remote access (NOT the web UI, which is L7)
# PLEX_ADVERTISE_URL — the connection URL Plex publishes to plex.tv ("Custom server access URLs",
# the ADVERTISE_IP env in catalog/plex.yaml, which the image writes into the `customConnections`
# preference on every pod start). Read catalog/plex.yaml's ADVERTISE_IP block for the full why;
# the short version is the only thing that matters when editing this line:
#
# IT MUST BE A `<dashed-ip>.<serverhash>.plex.direct` NAME, NEVER A BARE IP. Plex serves 32400
# with a `*.<serverhash>.plex.direct` wildcard certificate and NO IP SAN, so `https://<ip>:32400`
# fails TLS validation for every client. That exact mistake is what broke this service on
# 2026-10-04: with no completable connection, plex.tv published nothing, the server vanished from
# the account and clients reported "not authorized". The dashed name is public DNS that resolves
# to the embedded address, so it points at the LAN VIP AND matches the cert.
#
# WHY IT IS A WHOLE URL AND NOT BUILT FROM ${PLEX_L4_VIP}: postBuild substitution is plain
# envsubst — it cannot turn 192.168.2.24 into 192-168-2-24 — and `<serverhash>` is this server's
# certificate identity, derivable from nothing in this tree. Re-read it from the live cert
# (`openssl s_client -connect <vip>:32400 | openssl x509 -noout -subject`) if Plex ever reissues.
#
# The dashed IP here MUST track ${PLEX_L4_VIP} above. They are two halves of one address and
# nothing checks that they agree.
#
# dev -> PLACEHOLDER, non-functional. dev is decommissioned and has no claimed Plex server, so
# there is no real hash to put here; the base default only has to be a defined, correctly
# shaped string (StrictPostBuildSubstitutions makes an UNDEFINED var a hard failure).
# prod -> the real 192.168.2.24 + live server hash; see clusters/prod/kustomization.yaml.
PLEX_ADVERTISE_URL: "https://192-168-1-57.0000000000000000000000000000000f.plex.direct:32400"
# The FLAT LAN this cluster's nodes and LB VIPs live on, in CIDR form. Consumed as the ingress # The FLAT LAN this cluster's nodes and LB VIPs live on, in CIDR form. Consumed as the ingress
# peer of the PiHole DNS CiliumNetworkPolicy (apps/wave-0/pihole-dns.yaml): a resolver reachable # peer of the PiHole DNS CiliumNetworkPolicy (apps/wave-0/pihole-dns.yaml): a resolver reachable
+30
View File
@@ -476,6 +476,36 @@ patches:
- op: replace - op: replace
path: /data/PIHOLE_DNS_VIP path: /data/PIHOLE_DNS_VIP
value: "192.168.2.23" value: "192.168.2.23"
# Plex's remote-access listener VIP — raw tcp/32400 for REMOTE Plex clients
# (apps/wave-0/plex-remote.yaml). 192.168.2.24 is the NEXT FREE address in the prod pool
# 192.168.2.20-.30, verified live 2026-10-03: the CiliumLoadBalancerIPPool `default-pool`
# reported IPsTotal 11 / IPsUsed 4 / IPsAvailable 7, and the only four allocations are .20
# (cilium-gateway-shared), .21 (unifi-l4-tcp/-udp), .22 (crafty-l4-tcp/-udp) and .23
# (pihole-dns-tcp/-udp). It is inside the pool block the operator already asserted sits outside
# the SOHO router's DHCP scope, and it is not a node address (.10/.11/.12) or the
# control-plane VIP (.9).
#
# UNLIKE .23, THIS ONE IS ALSO A WAN PORT-FORWARD TARGET. The router forwards WAN tcp/32400
# here, by hand, off-repo — so changing this value is a two-place edit and the router is the
# half that CI cannot check. runbooks/plex-remote-access.md is the procedure.
#
# NOT ARP-PROBED. .23 was verified free with `arping` from a LAN host before it was claimed;
# for .24 only the in-cluster pool accounting above was checked, so an off-cluster squatter on
# this address would not have been caught. Probe before trusting it if remote access comes up
# with a conflict.
- op: replace
path: /data/PLEX_L4_VIP
value: "192.168.2.24"
# PLEX_ADVERTISE_URL — the prod VIP above in Plex's `plex.direct` form, which is the ONLY form
# that validates: the server's cert is `*.130072f20c334d6c8f63d0dfef87309b.plex.direct` with no
# IP SAN (read off the live listener 2026-10-04), so a bare `https://192.168.2.24:32400` fails
# TLS for every client — the 2026-10-04 outage. Measured with full verification, no `curl -k`:
# this URL answers /identity with 200 and TLS verify OK; the bare-IP form fails to connect.
# THE DASHED IP MUST MATCH /data/PLEX_L4_VIP ABOVE (192.168.2.24 -> 192-168-2-24); nothing
# enforces that. The hash is server identity, not a secret, and changes only if Plex reissues.
- op: replace
path: /data/PLEX_ADVERTISE_URL
value: "https://192-168-2-24.130072f20c334d6c8f63d0dfef87309b.plex.direct:32400"
# The prod flat LAN. This is the 192.168.2.0/24 segment the SOHO ROUTER at 192.168.2.1 owns — # The prod flat LAN. This is the 192.168.2.0/24 segment the SOHO ROUTER at 192.168.2.1 owns —
# NOT pfSense's 192.168.1.0/24, which is a different network and not in the LAN-DNS path. # NOT pfSense's 192.168.1.0/24, which is a different network and not in the LAN-DNS path.
# It scopes the ingress allow for PiHole's DNS listener to LAN clients only. # It scopes the ingress allow for PiHole's DNS listener to LAN clients only.
@@ -0,0 +1,149 @@
---
date: 2026-10-02
branch: fix/plex-quicksync-verification
title: Hardware transcoding works — and `runbooks/plex-quicksync.md`'s verification section was wrong
---
## What changed
**Hardware transcoding is confirmed working on prod.** Measured 2026-10-02 from
`Plex Media Server.log` in the running pod: `vaapi` on `/dev/dri/renderD128`
(`Intel CoffeeLake-S GT2 [UHD Graphics 630]`), `using hardware decode accelerator vaapi`,
`zero-copy support present`, `using zero-copy transcoding`, and
`final decoder: vaapi, final encoder: vaapi`. VAAPI for **both** directions, zero-copy, so frames
never round-trip through the CPU. The device-plugin mechanism from PR #37 works end to end.
**And `runbooks/plex-quicksync.md`'s verification section was wrong, which is the correction this
branch exists to publish.** The page said the Plex dashboard showing `Transcode (hw)` was "the *only*
proof available, and nothing else will ever tell you". The operator had hardware transcoding fully
working while **Dashboard → Activity showed nothing of the sort** — so the page's authoritative check
was silent on a working system, and sent someone looking for a fault that did not exist. Three
inference errors are now corrected on the page, two of them recorded as named false leads so the next
reader does not re-walk them:
1. **The dashboard is not proof.** Replaced as the primary check by Plex's own log — the grep is in
the page, in its **redacting** form, because `Plex Media Server.log` carries API URLs containing
`X-Plex-Token` (CLAUDE.md §6; a credential has been leaked into a transcript here before). The
page also now says explicitly that **`Plex Transcoder Statistics.log` is the wrong file** — it
holds XML `<Variant .../>` records, not ffmpeg output, and the name invites the mistake — and why
`grep -a` is required. The dashboard is **kept but demoted** to a secondary, best-effort signal,
with its absence stated to prove nothing.
2. **An fd snapshot is not evidence.** A `/proc/*/fd` sweep inside the pod found no holder of
`renderD128` while hardware transcoding was active; transcode sessions are short and the scan
landed in a gap. Recorded as a documented false lead, with the reliable process-level check in its
place: the transcoder's **argv** (`-hwaccel`, `-hwaccel_device`, `vaapi`, `renderD128`), found via
`ps -eo pid,user,comm | grep -i transcoder`.
3. **A missing preference key does not mean the setting is off.** The page told readers to treat an
absent `HardwareAcceleratedCodecs` in `Preferences.xml` as "never enabled". With hardware
acceleration demonstrably on and working, that key was **absent from all 27 attributes** while
`HardwareDevicePath` **was** written and the log said `hardware transcoding: enabled`. First-command
#4 now reads both keys and states plainly that `HardwareDevicePath` present is a positive signal,
absence of `HardwareAcceleratedCodecs` means nothing either way, only `="0"` is conclusive, and the
log settles it.
Also on the page:
- **GID `992` is no longer presented as a number to expect.** Under the plugin the injected device
arrives `root:root`, so the image's `cont-init.d` hook resolves GID **`0`** and adds `plex` to the
**root group** — measured `Groups: 0 100 1000`, `id plex` → `groups=1000(plex),0(root),100(users)`.
992 was the hostPath-era host `render` GID. The page now says so, marks the root-group membership as
an inherent property of the plugin's `DeviceSpec` rather than a defect, and repeats that it is
**not** a reason to reintroduce `supplementalGroups` (still a no-op: `s6-setuidgid` rebuilds the
group list from `/etc/group`). The stale `Groups: 100 1000` claim in the escalation section is gone.
- **A new troubleshooting entry for legitimate per-title fallbacks**, marked as a **hypothesis**.
Between two fully hardware sessions, one logged `enabled, but no hardware decode accelerator found`
and empty final decoder/encoder. UHD 630 decodes H.264, HEVC 8/10-bit and VP9 but **not AV1** and
not 10-bit 4:2:2 HEVC, so the likely cause is the source file, not the platform — explicitly
written as a lead to check first, **not** a confirmed diagnosis of that item.
- The status is stated at the top of the page and in a rewritten provenance footer that separates the
2026-10-02 confirmations from the superseded 2026-09-30/2026-10-01 hostPath-era readings.
- `runbooks/README.md`'s index entry for the page was stale in the same two ways (it still described a
`/dev/dri` hostPath and the dashboard-only proof) and is corrected to match.
Unchanged on purpose: the "STOP HERE IF PLEX IS `Pending`" section and the escape hatch (delete the
`hardware:` block from `catalog/plex.yaml`, re-render) keep exactly their existing prominence — they
are correct and they are the 2am material. The "no alert is possible" reasoning is also kept verbatim
in substance: Plex declares no `metricsEndpoint`, renders no ServiceMonitor, and a fallback alert
would be a rule evaluating against nothing.
**Documentation only.** No change to `catalog/`, `schemas/`, `apps/` or `platform/`.
## What I verified
- **Gate, in the pinned toolbox from this worktree** (`DEV_KUBECONFIG=/dev/null`, `ENGINE` shim
bind-mounting the main checkout's `.git`): **rc 3 UNDETERMINED**, diff base
`origin/main @ 948875aad37d`, with exactly the three expected skips and **no failures**. Green:
`decisions-log`, `lint`, `l0`, `render-golden`, `l1`, `approval-policy`. Skipped:
`spec-immutability` (spec repo unavailable → R-TEST-06 not verified), `gitea-settings`
(`SETTINGS_API_TOKEN` unset), `conformance` (`CLUSTER_AVAILABLE!=true` → L2/L3 not run).
Touched requirements: **R-OBS-04**, reported `UNVERIFIED` for lack of a cluster. `approval-policy`
passed as `N/A` locally (`event='none'`, not a `pull_request`) — it evaluates for real on the PR.
**rc 3 is not green**, it is the calibrated worktree result, and it is reported here as rc 3.
- **The gate was run three times, with the same rc 3 / three-skip result on each committed tip** —
including the final one. Worth recording from the first attempt: run *before* committing, with
`HEAD == origin/main`, the touched-requirement set is `NOT DETERMINABLE (on-base)` and the
R-TEST-03 coverage gate cannot be applied at all. Commit before gating from a fresh worktree branch.
- **`runbooks/kustomization.yaml` still carries `- plex-quicksync=plex-quicksync.md`** in the
`configMapGenerator` `files:` list (line 110) — checked explicitly, because without it the page
merges and still 404s. `README=README.md` is likewise present, which is what serves the corrected
index entry.
- **This change touches no `sensitive_paths`.** `infra/gitea/approval-policy.json` lists `ci/**`,
`.gitea/**`, `conformance/**`, `clusters/**`, `bootstrap/**`, `infra/gitea/**`,
`platform/kyverno/**`, `platform-config/kustomization.yaml`, `.sops.yaml`, `**/*.sops.yaml`,
`**/rbac.yaml`, `CLAUDE.md`. `runbooks/**` and `decisions/**` are not among them, and the
`approval-policy` stage passed.
- **No YAML was added or edited**, so `indent-sequences: consistent` (which blocked a sibling branch
today) is not in play here; `lint` passed over the full tracked YAML set regardless.
- **`DECISIONS-LOG.md` is untouched** — this handoff is its own file, per CLAUDE.md §7.
- **The PR's own CI run was read, not assumed** (PR #39, run 208, task 261, head `1677dff5688b`).
**It is RED, and not because of this branch.** Every stage this change could affect is green —
`decisions-log`, `lint`, `l0`, `render-golden`, `l1`, `approval-policy` (`approval-policy` evaluated
for real on the `pull_request` event and passed: no sensitive path touched). The single failure is
**`gitea-settings`**, quoting the measured field:
[fail] required_approvals: DECLARED 1 but LIVE is 0
[fail] Gitea has DRIFTED from infra/gitea/expected-branch-protection.json.
[fail] MERGE GATE: BLOCKED
Every other declared setting matched (`block_admin_merge_override`, `block_on_rejected_reviews`,
`dismiss_stale_approvals`, `enable_status_check`, `enable_push=false`,
`status_check_contexts = ["gate / gate (pull_request)"]`, `runners online: 1`). So **live `main`
currently requires ZERO approvals**, the declaration still says 1, and with
`REQUIRE_GITEA_SETTINGS: "true"` in `.gitea/workflows/gate.yml` that drift **blocks every PR in
the repo**, not just this one. Note the shape of it: the check that would notice approvals are
unenforced is the check that is failing. Local branch `fix/admin-approval-override` (`616a497`,
"fix(ci): let an administrator merge their own green PR") looks like the in-flight work that means
to change the declaration. **I did not touch it** — `infra/gitea/**` is a sensitive path, needs a
non-author approval, and is outside this branch's documentation-only scope. It is an operator
decision: re-assert the protection, or change the declaration deliberately in its own PR.
- The repository-wide grep for `992` to find what else still asserts it: remaining occurrences are in
`catalog/plex.yaml`, `catalog/render.py`, `schemas/renderer-contract.md`,
`platform/intel-gpu-plugin/README.md`, `platform/intel-gpu-plugin/kustomization.yaml`, and three
older `decisions/` entries.
## What I did NOT verify
- **I did not re-measure anything on the live cluster in this session.** Every platform number on the
page — the VAAPI/zero-copy log lines, `RW-OPEN-OK` as uid 1000, the `gpu.intel.com/i915` limits and
requests on the pod spec, `Groups: 0 100 1000`, `id plex`, the 27 `Preferences.xml` attributes, the
empty `/proc/*/fd` sweep — came to me as measurements taken earlier on 2026-10-02 and was
transcribed, not re-run. Per CLAUDE.md §2b, treat the page as reporting those readings rather than
as proof of current state; re-run the primary check before relying on it.
- **The per-title fallback cause is unverified and labelled as such.** The source codec of the title
that logged `no hardware decode accelerator found` was never read. The AV1 / 10-bit-4:2:2-HEVC
explanation is inferred from UHD 630's capability set alone.
- **Whether Plex's dashboard *ever* shows `Transcode (hw)` on this deployment is unknown.** It was
observed silent during working hardware transcoding; whether that is a client/version quirk, a
reporting bug, or something about this setup was not investigated. The page therefore demotes it
rather than explaining it.
- **The commands as written in the page were not executed from the page.** They are the forms that
were run, re-wrapped for `dev.sh`; in particular the `exec -it deploy/plex -- sh` route for the argv
check is noted as possibly lacking a TTY under `dev.sh run` and was not exercised in that shape.
- **Stale `992` copies outside `runbooks/` were left alone**, deliberately — scope was documentation
only, and `catalog/plex.yaml`, `catalog/render.py`, `schemas/renderer-contract.md` and
`platform/intel-gpu-plugin/` all still carry the hostPath-era `Groups: 44 100 992 1000` reading as
if current. `render.py --selftest` asserts around that comment, so correcting it is a real change
with gate consequences, not a doc edit. **That is open work.** Older `decisions/` entries also cite
992; those are historical records and should stay as written.
- **CI on the PR.** The branch is pushed and the PR opened; I did not watch the Gitea run report, so
nothing here should be read as "CI green". The only gate result I can quote is the local rc 3 above.
@@ -0,0 +1,76 @@
---
date: 2026-10-03
branch: fix/cilium-cgroup-hostroot
title: Cilium socket-LB never covered host processes — cgroup.hostRoot pointed at an unmounted path
---
## What changed
`cgroup.hostRoot` changes from `/run/cilium/cgroupv2` to `/sys/fs/cgroup` in all three parity
copies: `platform/cilium/helmrelease.yaml` (authoritative), `platform/cilium/values.yaml`
(mirror) and `infra/ansible/roles/cilium/templates/cilium-values.yaml.j2` (bootstrap).
`autoMount` stays `false`.
**The defect.** With `autoMount: false`, the Cilium chart only bind-mounts whatever exists at
`hostRoot`, and expects the operator to have mounted cgroup2 there (cilium 1.20.1 values.yaml).
The repo's rationale was "k3s provides the cgroupv2 mount". That is true only for
`/sys/fs/cgroup`. Nothing mounts cgroup2 at `/run/cilium/cgroupv2` on these nodes; it is an
empty `DirectoryOrCreate` hostPath. So the agent mounted cgroup2 there itself, from inside its
own private cgroup namespace, and that mount's root is the agent container's own leaf cgroup.
The socket-LB programs (`cil_sock4_connect` etc.) were attached to it and covered only the
agent.
**The consequence.** Every other host-netns process got no Service/LB translation:
- Service ClusterIPs were unreachable from every node's host.
- The node holding the Gateway's L2 lease could not reach the Gateway VIP (`no route to host`).
Other nodes reached it only because their packets crossed the wire to the lease holder, where
the tc datapath handles them.
- k3s-prod-1 holds both the Gateway lease and the kube-vip API VIP. Its apiserver could not reach
the OIDC issuer, logging `oidc: authenticator not initialized` since at least 2026-09-12
(899 occurrences by 2026-10-03). kubectl SSO through the VIP therefore failed, and in-cluster
OIDC clients failed on whichever calls landed on that apiserver.
- Webhooks and aggregated APIs were unaffected only because k3s runs
`--enable-aggregator-routing=true` (endpoint IPs, not ClusterIPs).
Cilium's own source (v1.20.1 `bpf/bpf_sock.c`, `__sock4_xlate_fwd`) handles exactly this case
when the hook does run: a host-netns connect to an L7-LB Service (the Gateway) is rewritten to
`127.0.0.1:<l7_lb_proxy_port>`, the local Envoy listener. The fix is to make the hook cover the
host.
## What I verified
- `cilium-dbg status --verbose` on k3s-prod-1: `Socket LB: Enabled`, `Coverage: Hostns-only`.
The live cilium-config shows `bpf-lb-sock=false`, but socket LB is implied by kube-proxy
replacement. The Gateway Service frontends `192.168.2.20:{80,443}` and
`10.43.225.79:{80,443}` map to `127.0.0.1:14337`.
- Host: `findmnt /run/cilium/cgroupv2` is empty on all three nodes, and `/sys/fs/cgroup` is
`cgroup2`.
- In the agent: `/run/cilium/cgroupv2` is a `cgroup2 none` mount, the agent's own cgroup reads
`0::/`, the mount has 0 child cgroups, and `bpftool cgroup show /run/cilium/cgroupv2` lists all
`cil_sock*` programs. k3s runs in `0::/system.slice/k3s.service`, and the agent container in
`/kubepods.slice/…/cri-containerd-3ad04cde….scope`.
- **The decisive test**, run on k3s-prod-1 in the same netns: raw TCP connect to
`192.168.2.20:443`, `10.43.225.79:443` and `10.43.59.141:8080` CONNECTED from inside the agent
container (covered cgroup) and FAILED from the host (`No route to host` / timeout).
- Blast radius: host-network pods are cilium, cilium-envoy, cilium-operator (API via
`192.168.2.9:6443`, not a Service), kube-vip (`127.0.0.1:6443`, `svc_enable=false`) and
node-exporter (no outbound). Nothing depends on host Service translation being absent; the
change only makes Service/LB addresses reachable from the host where they currently fail.
- `helm template cilium/cilium --version 1.20.1` with the new values, in the toolbox: the
DaemonSet bind-mounts hostPath `/sys/fs/cgroup` into `cilium-agent` and `clean-cilium-state`,
the cilium-config shows `cgroup-root: "/sys/fs/cgroup"`, and the init containers are unchanged
(no `mount-cgroup`).
- Toolbox gate: see the PR description.
## What I did NOT verify
- **The rollout itself.** After merge, the agent DaemonSet rolls one node at a time
(`maxUnavailable: 1`). On each node, afterwards: host TCP connects to the three targets above
must succeed. On k3s-prod-1, the apiserver's background OIDC init retry must stop logging
`authenticator not initialized` with no k3s restart.
- That the old programs, attached to the previous agent container's cgroup, disappear with it.
Expected, because cgroup BPF attachments die with the cgroup, but not observed.
- An end-to-end kubectl OIDC login (needs a browser).
- No regression test was added. A natural one is an L2 conformance check that a host-netns
connect to the Gateway VIP succeeds on the lease holder, but `conformance/**` is a sensitive
path. Left as a follow-up.
@@ -0,0 +1,45 @@
---
date: 2026-10-03
branch: fix/node-keycloak-hosts-pin
title: Pin the OIDC issuer to the Gateway VIP on prod nodes — the WAN answer does not hairpin
---
## What changed
Follow-up to PR #40 (`decisions/2026-10-03-public-dns-wan-target.md`). Public DNS for
`*.home.keithjackson.dev` now CNAMEs to the WAN IP. The prod nodes resolve through public DNS,
and the router does not hairpin, so the kube-apiserver could no longer reach its OIDC issuer
`keycloak.home.keithjackson.dev`.
- `roles/node_baseline`: a new `node_baseline_hosts_pins` list (default `[]`) and one
`blockinfile` task (tags `dns`, `hosts`). It writes the pins into `/etc/hosts` as a single
marked block. An empty list removes the block.
- `group_vars/k3s_prod/vars.yml`: pins `keycloak.{{ k3s_base_domain }}` → `192.168.2.20`, which
must stay equal to `GATEWAY_VIP` (parity comment added). It also replaces the stale "no
/etc/hosts pin is needed" paragraph with the measured reason the pin is now required.
Dev is unaffected (empty default).
## What I verified
- After PR #40 reconciled (`platform` lastAppliedRevision `576e1ab`, Healthy=True), on
k3s-prod-2 and k3s-prod-3: `getent hosts keycloak.home.keithjackson.dev` →
`136.51.115.252 wan.home.keithjackson.dev`. `curl https://keycloak…/realms/homelab/.well-known/openid-configuration`
→ exit 60, `ssl_verify_result=18` (the router's self-signed cert, not the Gateway).
- `journalctl -u k3s` (last 20 min) showed no OIDC/JWKS errors yet. The apiserver still holds
the keys it cached before the flip, so the failure is latent until a k3s restart or key rotation.
- Neither node has cloud-init (`/etc/cloud` absent), so nothing rewrites `/etc/hosts` at boot.
- `--check --diff --tags hosts --limit k3s-prod-2,k3s-prod-3`: each node gets exactly the
three-line marked block `192.168.2.20 keycloak.home.keithjackson.dev`.
- Outside-in, PR #40 works: check-host.net probes from 3 external nodes got `200 OK` from
`https://plex.home.keithjackson.dev/identity` at `136.51.115.252`.
## What I did NOT verify
- **k3s-prod-1**: Ansible cannot reach it. SSH host key verification fails (`known_hosts:94`,
ED25519 `SHA256:zgUS8OeWznzCX9hlN7XdZ8iLNkU1G2loXjtJFfEUYpE`), which is consistent with
the 2026-09-11 SSD replacement and reinstall. The operator must confirm the fingerprint
before the pin can be applied there.
- The playbook has not been applied for real. It is an operator run after merge:
`ansible-playbook playbooks/node-baseline.yml -e k3s_hosts=k3s_prod --tags hosts`.
- An end-to-end kubectl OIDC login after the pin (needs a browser).
@@ -0,0 +1,129 @@
---
date: 2026-10-03
branch: feat/plex-remote-access-l4
title: Plex remote access — raw tcp/32400 via a pinned LoadBalancer VIP, not the L7 Gateway
---
## What changed
Reported symptom: users cannot reach Plex from outside the LAN. **Two independent causes**, measured
rather than inferred:
1. **Plex advertised no remote connection at all.** Live `Preferences.xml` on prod:
`customConnections` **ABSENT**, `ManualPortMappingMode` **ABSENT**, while
`PublishServerOnPlexOnlineKey="1"` — publishing was on and there was nothing reachable to publish.
Plex's automatic UPnP/NAT-PMP path cannot work from a pod on the Cilium overlay.
2. **Nothing from the WAN reached the cluster.** `136.51.115.252:32400` refused;
`136.51.115.252:443` answered with a **self-signed router cert** (`C=ZZ, CN=%D`), not the
Gateway's LE wildcard. The Plex Service was `ClusterIP` only — no off-cluster path to 32400 by
any route.
This branch fixes the in-cluster half. **Remote access does not work until the operator also does
two manual steps** (`runbooks/plex-remote-access.md`): the WAN tcp/32400 port-forward, and ticking
"manually specify public port" in the Plex UI.
- **`apps/wave-0/plex-remote.yaml` (new, hand-written).** A `type=LoadBalancer` Service on tcp/32400
pinned to `${PLEX_L4_VIP}` via `lbipam.cilium.io/ips`, plus a `CiliumNetworkPolicy`
(`plex-allow-remote-32400`) admitting `world`/`cluster`/`host`/`remote-node` to 32400. Non-catalog
because `schemas/servicedefinition.schema.json` is `additionalProperties: false` and has no field
for a LoadBalancer Service or a pinned VIP — the same reason `apps/wave-0/pihole-dns.yaml`,
`platform/crafty/service-l4.yaml` and `apps/vms/unifi/50-service-l4.yaml` are hand-written.
- **`catalog/render.py`:** an `EXTRA_UNITS` entry (`plex-remote`, anchored to `plex`, `above: False`)
so `--emit-waves` places the unit in plex's own wave.
- **`clusters/base/cluster-vars.yaml`:** new `PLEX_L4_VIP` (dev default `192.168.1.57`), plus the
substitution inventory comment updated to name `plex-remote: PLEX_L4_VIP`.
- **`clusters/prod/kustomization.yaml`:** prod override `PLEX_L4_VIP: 192.168.2.24`.
- **`apps/wave-0/kustomization.yaml`:** `plex-remote.yaml` added to `resources`.
- **`runbooks/plex-remote-access.md` (new):** the two manual steps, the four-step verification, why
no alert is possible, and the two documented warts below.
**`ADVERTISE_IP` was deliberately NOT set.** Setting it to `https://plex.home.keithjackson.dev:443`
was the alternative — it needs no new WAN hole and the mechanism was verified working on an
already-claimed server. **The operator chose the native path (2026-10-03)** so Plex terminates its own
TLS (`*.plex.direct`) and streams bypass the Envoy L7 hop. `catalog/plex.yaml`'s deferral note for
`ADVERTISE_IP` remains accurate and untouched.
**`externalTrafficPolicy: Cluster`, with a known cost.** `Local` would preserve the client IP, but
Cilium's L2 announcer does not follow the backend pod — the wart that cost this LAN an 8-day
Minecraft outage (see `platform/crafty/service-l4.yaml`). Consequence accepted and documented: SNAT
puts the client in `192.168.0.0/16`, inside `ALLOWED_NETWORKS`, so **Plex classifies remote streams
as LAN**. That is a metering effect (remote bandwidth limits will not bind), not an authorization one.
**SENSITIVE PATHS — this PR touches `clusters/**` (two files), so `ci/approval-policy.sh` will BLOCK
it.** It needs the operator's `/approve-override <reason>` posted as a PR **review** of type
"Comment". I have deliberately not posted it: CLAUDE.md §1 forbids an agent clearing this on its own
PR, and the agent account holds `owner`, so the prohibition is a rule, not a limit.
## What I verified
All measurements against live prod, 2026-10-03, read-only.
- **Plex's advertised state**, the finding this branch rests on: `customConnections=<ABSENT>`,
`ManualPortMappingMode=<ABSENT>`, `ManualPortMappingPort=<ABSENT>`,
`PublishServerOnPlexOnlineKey="1"`, `allowedNetworks="10.0.0.0/8,192.168.0.0/16"`. Read by
attribute grep, never by dumping `Preferences.xml` (it holds `PlexOnlineToken`).
- **The L7 Gateway path works and is NOT the problem.** Via the Gateway VIP,
`GET https://plex.home.keithjackson.dev/identity` → `HTTP 200`, `claimed="1"`, real
`machineIdentifier`. HTTPRoute `plex-32400`: `Accepted=True`, `ResolvedRefs=True`.
- **Plex enforces its own auth**, which is what makes an unfiltered WAN port defensible:
`/library/sections`, `/status/sessions`, `/:/prefs` all → **401** unauthenticated through the
Gateway.
- **The SNAT/allowedNetworks wart is real, not theoretical.** A tagged probe through the Gateway was
logged by Plex as `[10.0.2.214:36040 (Allowed Network (WAN))]` — the Envoy pod IP, classified as an
allowed network.
- **WAN state:** `136.51.115.252:32400` → connection refused. `136.51.115.252:443` → self-signed
cert `C=ZZ, ST=Somewhere, O=%D342e7e6b, CN=%D`. Public DNS resolves correctly:
`plex.home.keithjackson.dev` → CNAME `wan.home.keithjackson.dev` → `136.51.115.252`.
- **`192.168.2.24` is free in-cluster.** `CiliumLoadBalancerIPPool default-pool`: IPsTotal 11 /
IPsUsed 4 / IPsAvailable 7; the only allocations are `.20` (cilium-gateway-shared), `.21`
(unifi-l4-*), `.22` (crafty-l4-*), `.23` (pihole-dns-*). Not a node address (`.10/.11/.12`) and not
the kube-vip control-plane VIP (`.9`).
- **The manual-port-mapping step genuinely cannot be automated.** Grep of the running image's whole
init surface (`/etc/cont-init.d`, `/plex-common.sh`, `/usr/local/bin`) for `ManualPortMapping` and
`PLEX_PREFERENCE` → **NONE**.
- **`ADVERTISE_IP` would have worked on a claimed server** (recorded because the runbook's
"why not" rests on it): `setPref "customConnections"` at line 126 of `40-plex-first-run` sits
**outside** the `PLEX_CLAIM`/`PlexOnlineToken` guard, and the `/.firstRunComplete` early-exit
marker is on the **overlay** FS, not the `/config` PVC, so the script re-runs every pod start.
- **Toolbox gate** (`./infra/devcontainer/dev.sh run bash -c './ci/gate.sh'`): **rc 3**, with
`spec-immutability`, `decisions-log`, `lint`, `l0`, `render-golden`, `l1` and `approval-policy` all
**pass**. The rc 3 is two environmental skips — `gitea-settings` (no local `SETTINGS_API_TOKEN`)
and `conformance` L2/L3 (`CLUSTER_AVAILABLE` unset). **Not green. Reported as rc 3, not as pass.**
- **`render-golden` passing is the specific proof** that the `render.py` `EXTRA_UNITS` change, the new
hand-written unit and the edited wave kustomization are mutually consistent.
## What I did NOT verify
- **THE ACTUAL FIX. Nothing in this branch has been proven to make remote access work** — it cannot
be, because both remaining steps are off-repo and manual (router forward, Plex UI toggle). This
branch removes two blockers and adds none; it does not demonstrate an outcome.
- **Outside-in reachability, at all.** Every probe above was taken from inside the LAN, so the
`:443` self-signed cert strictly proves only that there is **no NAT hairpin** — it does **not**
prove outside-in failure. A router cert on WAN:443 is suggestive (its management UI would shadow a
forward), but unproven. **This repo has no off-LAN vantage point.** Test 3 in the runbook
(app.plex.tv from a cellular connection) is the only honest check.
- **`192.168.2.24` was never ARP-probed off-cluster.** Only in-cluster pool accounting was checked.
`.23` was `arping`-probed before it was claimed; `.24` was not, so an off-cluster squatter would
not have been caught.
- **The LoadBalancer has never been reconciled.** `plex-l4-tcp` does not exist in prod yet, so
LB-IPAM has not actually assigned the pinned VIP, L2 announcement has not been observed for it, and
the new CiliumNetworkPolicy has never admitted a real packet. Whether `world`/`host`/`cluster`/
`remote-node` is the correct entity set **under this SNAT path** is reasoned from
`platform/crafty/networkpolicy.yaml`'s working game-port rule, **not measured**.
- **Whether Plex's remote path needs anything beyond the manual port tick.** If plex.tv still lists
no remote connection after both manual steps, this branch is necessary-but-insufficient.
- **The CI approval-policy outcome.** The local stage reported green, but that is an offline N/A, not
a verdict: this PR touches `clusters/**`, so CI will block it pending an override.
- **PRE-EXISTING DRIFT I FOUND AND DELIBERATELY LEFT ALONE — worth its own follow-up.** Running the
documented `python3 catalog/render.py --emit-waves` regenerates the wave kustomizations and wants to
add **`vm-demo.yaml`** to wave 0 and **`keycloak.yaml`** to wave 1. Both are listed as
intentionally not onboarded in `ci/render-golden.sh`
(`RENDER_GOLDEN_NOT_ONBOARDED="keycloak vm-demo"`); their manifests are tracked in `apps/` but
deliberately absent from the `resources` lists so Flux does not apply them. `--emit-waves` places
any file present on disk and has **no awareness of that exclusion**, while `render-golden.sh` uses
`--wave-layout` and compares rendered manifests only — it never checks kustomization `resources`,
which is why this has survived unnoticed. **So the header "DO NOT hand-edit: re-run
`render.py --emit-waves`" is currently unsafe advice**: following it onboards an IdP and a KubeVirt
VM. I therefore restored both kustomizations and hand-added only my one line. I did not fix
`--emit-waves`, and I have not determined how long the drift has existed or whether either service
is *meant* to be onboarded.
@@ -0,0 +1,73 @@
---
date: 2026-10-03
branch: feat/public-dns-wan-target
title: Public DNS now points at the WAN — Gateway-published names CNAME to an in-cluster DDNS record
---
## What changed
The operator closed the open "public-target gap" recorded in
`platform/externaldns/helmrelease.yaml`. The WAN NAT / port-forwarding (80/443 → Gateway VIP
192.168.2.20) was done by the operator outside this repo.
Operator decisions (2026-10-03):
1. **Scope: every Gateway-published name goes public.** That covers the five `exposure: public`
apps (plex, gitea, keycloak, nextcloud, seerr) and also the hand-authored admin UIs (auth,
crafty, grafana, headlamp, the `home.keithjackson.dev` apex). `internal` services still publish
nothing: their `controller: none` route annotation is checked before the target is read.
2. **The WAN IP is kept current in-cluster**, not hardcoded.
Implementation:
- `platform/gateway/gateway.yaml`: `external-dns.alpha.kubernetes.io/target: wan.${BASE_DOMAIN}` on
the shared Gateway. Every gateway-sourced record changes from `A 192.168.2.20` to
`CNAME wan.home.keithjackson.dev`.
- `platform/externaldns/ddns.yaml` (new): `favonia/cloudflare-ddns:1.17.1` Deployment in the
`external-dns` namespace. It reuses `cloudflare-api-token` and keeps `wan.${BASE_DOMAIN}` an
unproxied IPv4 A record at the WAN IP (detected via Cloudflare trace, checked every 5 min,
`DELETE_ON_STOP=false`). external-dns has no TXT registry entry for it, so it never owns or
deletes it.
- The helmrelease comment block and the README now describe the decision instead of the gap.
Known consequence: **k3s nodes resolve through public DNS** (`node_baseline_dns_servers` = 8.8.8.8 /
1.1.1.1). The kube-apiserver's OIDC issuer `keycloak.home.keithjackson.dev` therefore resolves to the
WAN IP from the nodes, and kubectl SSO works only if the router hairpins WAN:443 back to the Gateway.
A LAN-side probe of `136.51.115.252:443` on 2026-10-03 returned a **self-signed placeholder cert**,
not the Gateway's Let's Encrypt wildcard. That suggests no hairpin. The cert-based admin kubeconfig
is unaffected.
## What I verified
- Live prod, 2026-10-03, before the change: Gateway `gateway/shared` ADDRESS `192.168.2.20`.
External-dns args include `--source=gateway-httproute --source=service --policy=sync
--txt-owner-id=prod --domain-filter=keithjackson.dev`, and it logs "All records are already up to
date".
- Public answers at 1.1.1.1: plex/gitea/keycloak/grafana/auth/apex → `192.168.2.20`;
`crafty-mc` → `.22` and `unifi` → `.21` (service source, not affected by this change); jackett →
none (internal, correctly unpublished).
- The authority (betty.ns.cloudflare.com) has no unprefixed TXT, AAAA or MX at `plex.` or the apex,
so the A→CNAME switch has no co-existing record to collide with.
- WAN IP from the workstation: `136.51.115.252`.
- No CiliumNetworkPolicy or NetworkPolicy in `external-dns`. The Kyverno label and default-deny
policies match only `app-namespace` namespaces. The vpn egress policy selects only
`egress-class: vpn` pods.
- Toolbox gate result: see the PR description (run after this commit).
## What I did NOT verify
- **The outside-in path.** I have no vantage point outside the LAN. Whether
`https://<svc>.home.keithjackson.dev` from the internet reaches the Gateway with the LE cert is
UNVERIFIED.
- **Hairpin / kubectl SSO after the flip.** Likely broken per the probe above. Fix candidates: a
node `/etc/hosts` pin for `keycloak.${BASE_DOMAIN}` → Gateway VIP via `node_baseline`, or router
NAT reflection.
- **The record-type flip itself**, until Flux reconciles: whether Cloudflare accepts external-dns's
create-CNAME in the same batch as the delete-A, or converges one interval later.
- `favonia/cloudflare-ddns` under this pod securityContext. The README warns that
`no-new-privileges` misbehaves on some Proxmox-style hosts. These are bare-metal nodes, but it is
untested until the pod runs.
- Whether the L4 service-source names (crafty-mc, unifi) should also go public. Not decided, not
changed.
- `conformance/tests/l0-static/internal-services-publish-no-public-dns/check.sh` header lines 39–40
still describe the target as open. That is a sensitive path, so it is left for a follow-up.
@@ -0,0 +1,157 @@
---
date: 2026-10-04
branch: feat/hubble-flow-export-plex
title: Record the pre-SNAT client address for Plex via Hubble static flow export, instead of breaking externalTrafficPolicy to get it
---
## What changed
Operator requirement, narrowed explicitly: **this is 100% about log visibility** — knowing which
address connected to Plex. Not bandwidth metering, which does not matter here.
**The problem, measured.** Plex's own log cannot show it. Every LoadBalancer Service in this cluster
is `externalTrafficPolicy: Cluster`, so the node holding the L2 lease for the VIP SNATs the client
before forwarding to the backend pod:
| Measured 2026-10-04 | Value |
|---|---|
| Node announcing `192.168.2.24` | `k3s-prod-3` (also holds `.20` Gateway, `.23` pihole-dns) |
| Node running the Plex pod | `k3s-prod-1` (`10.0.0.135`) |
| Sources in Plex's log | **3,214 × `10.0.1.x`**, 105 × `10.0.2.x`, 120 × loopback |
| `192.168.x` sources in Plex's log, ever | **0** |
| `X-Forwarded-For` in Plex's log | **0** (it serves raw tcp/32400, not HTTP via the Gateway) |
| `10.0.1.78` identity (`cilium-dbg bpf ipcache`) | `identity=1` → `reserved:host` = prod-3 itself |
**Nothing on the router is involved** — the operator correctly pointed out there is no hairpin NAT
here. The rewrite is entirely in-cluster, done by Cilium's BPF load-balancer on the lease holder,
because the backend pod is on a different node.
**The address is not lost, only unrecorded.** Cilium observes the flow at ingress, *before* its own
translation, so Hubble already holds the true source:
192.168.2.133 -> 10.0.0.135 (real LAN client -> the Plex pod)
10.0.1.78 -> 10.0.0.135 (the same traffic post-SNAT — what Plex sees)
What was missing is **retention**: the ring buffer was **4095/4095 flows at ~303 flows/s — about
thirteen seconds of history** — with hubble metrics disabled and no exporter configured.
So: enable the static flow exporter, scoped to Plex's port, writing to the agent's stdout.
- **`platform/cilium/helmrelease.yaml`** (authoritative): `hubble.export.static.enabled: true`,
`filePath: stdout`, `allowList` of `{"destination_port":["32400"]}` and
`{"source_port":["32400"]}`.
- **`platform/cilium/values.yaml`** (reference mirror) and
**`infra/ansible/roles/cilium/templates/cilium-values.yaml.j2`** (the `[parity]` source of truth):
the same block, so a bootstrap render does not differ from what Flux reconciles — a mismatch would
be a permanent Helm diff and an avoidable agent rollout.
**`filePath: stdout`, not a file,** because Grafana Alloy already runs as a DaemonSet tailing every
pod's logs into Loki (`platform/monitoring/alloy.yaml`). stdout therefore reaches Loki with **no new
hostPath mount, no file-rotation handling, and no Alloy change at all**. Upstream documents the
value: *"To get Hubble flows directly exported to the logs instead of written to a rotated file,
`stdout` can be defined as `hubble-export-file-path`."* Query:
{namespace="kube-system", app="cilium"} |= "32400"
**SCOPED BY PORT, NOT BY NAMESPACE — a measured decision, not a preference.** A
`--to-namespace plex` query returned **only the post-SNAT flows**; the flow carrying the real client
address did not match it, because at the point of observation the destination identity is not yet
resolved to the plex pod. A namespace filter would have dropped exactly the record this change
exists to capture.
**WHY NOT FIX THE SNAT INSTEAD — both alternatives rejected on evidence.**
- `externalTrafficPolicy: Local` would put the real address in Plex's own log, but cilium 1.20's L2
announcer is **explicitly incompatible** with it. Upstream docs for this exact version:
*"incompatible with the `externalTrafficPolicy: Local` on services as it may cause service IPs to
be announced on nodes without pods causing traffic drops"* and *"L2 announcements isn't currently
aware of this setting"*. Live proof it is not theoretical: the VIP is announced by prod-3 while the
pod runs on prod-1, so the flip would black-hole tcp/32400 **immediately**. Making it safe means
pinning both the pod and the announcement to one node and surrendering Plex's ability to
reschedule — a real availability loss to buy a log field. Same trap
`platform/crafty/service-l4.yaml` documents from an 8-day Minecraft outage.
- **DSR** also preserves the client address, but `routing-mode` here is **vxlan**, not
native/geneve, and DSR returns bypass the ingress node, which breaks the SOHO router's stateful
NAT on the remote path. Cluster-wide blast radius across all eight LB Services for one service's
logging.
**A correction to the repo's own record.** `decisions/2026-10-03-plex-remote-access-l4.md` states the
SNAT puts the client inside `192.168.0.0/16` (the ingress node's LAN address), and I repeated that in
the previous entry. **It is wrong**: measured, the SNAT source is `10.0.1.x` — the node's
`cilium_host` inside the pod CIDR. This matters, because it means `LanNetworksBandwidth` can never
discriminate local from remote while eTP is `Cluster`: `10.0.0.0/8` must be in the LAN set for the
in-cluster consumers (Seerr) to count as local, and every external client arrives in that same range.
PR #48's LAN definition therefore fixes the Remote badge by making *everything* local — acceptable
only because metering is explicitly not a goal here.
## What I verified
Live prod, 2026-10-04, read-only.
- **Every measurement in the table above**, including the VIP-lease-to-node map
(`cilium-dbg shell -- db/show l2-announce` on all three agents) and the pod's node.
- **Hubble already carries the pre-SNAT source** — the single finding this whole approach rests on:
`hubble observe --port 32400` on the lease holder returned `192.168.2.133 -> 10.0.0.135` **and**
its return flow, alongside the post-SNAT `10.0.1.78 -> 10.0.0.135`.
- **The retention gap is real:** `cilium-dbg status` reported `Hubble: Ok Current/Max Flows:
4095/4095 (100.00%), Flows/s: 303.62 Metrics: Disabled`, and the `cilium-config` ConfigMap
contains no `hubble-export-*` key at all.
- **The namespace-filter trap**, directly: `--to-namespace plex` returned only `10.0.1.78` and
`10.0.1.71`; the `192.168.2.133` flow was absent. This is why the allowList is port-scoped.
- **All eight LoadBalancer Services are `eTP=Cluster`** (crafty ×2, gateway, pihole-dns ×2, plex,
unifi ×2) — so this is a cluster-wide pattern, not a Plex-specific choice.
- **The eTP:Local incompatibility is upstream-documented for v1.20 specifically**, quoted above from
the docs for the running version — not inferred from the crafty incident.
- **`routing-mode: tunnel`** and **`bpf-lb-mode-annotation: false`** in the live `cilium-config`,
which is what rules DSR out.
- **The chart's value paths and defaults**, read from cilium v1.20.1's own `values.yaml`:
`hubble.export.static.{enabled,filePath,fieldMask,fieldAggregate,aggregationInterval,allowList,denyList,fileMaxSizeMb,fileMaxBackups,fileCompress}`,
with `filePath` defaulting to `/var/run/cilium/hubble/events.log`. The keys used here exist.
- **Alloy's pipeline shape**, read from `platform/monitoring/alloy.yaml`: a DaemonSet with
`loki.source.kubernetes "pods"` → `loki.process` → `loki.write` at
`http://loki.monitoring.svc.cluster.local:3100`. It already tails kube-system pods, which is why
stdout needs no Alloy change.
- **All three value files agree** (one `destination_port` occurrence each) and both YAML files parse,
with `export.static` resolving to the intended object.
- **Toolbox gate**: **rc 3**, with `spec-immutability`, `decisions-log`, `lint`, `l0`,
`render-golden`, `l1` and `approval-policy` all **pass**; rc 3 is the two known environmental skips
(`gitea-settings` — no local `SETTINGS_API_TOKEN`; `conformance` L2/L3 — `CLUSTER_AVAILABLE`
unset). **Not green. Reported as rc 3.**
- **No sensitive paths touched** — `platform/cilium/**` and `infra/ansible/**` are not in
`infra/gitea/approval-policy.json`, so this needs no approval override, unlike PR #48.
## What I did NOT verify
- **THE OUTCOME. Nothing has been reconciled and no flow has ever been exported.** `cilium-config`
still has no `hubble-export-*` key. Every claim is about inputs.
- **Whether `filePath: stdout` is accepted as written.** This is the single largest risk. The value
comes from a verbatim upstream doc sentence (*"`stdout` can be defined as
`hubble-export-file-path`"*), but I did not confirm the exact notation in cilium 1.20.1's source,
and the chart default is a real filesystem path. If the literal string is not special-cased, the
agent may create a FILE named `stdout` in its working directory and nothing reaches Loki — a
silent no-op, not a crash. **Fallback if so:** leave `filePath` at the chart default and add a
`local.file_match` + `loki.source.file` target to Alloy with a hostPath mount for
`/var/run/cilium/hubble`.
- **Whether the FlowFilter JSON is accepted.** `{"destination_port":["32400"]}` follows the proto
(`destination_port` is a repeated string) and the documented shape (`'{"verdict":["DROPPED"]}'`),
but upstream gives **no port example** and I did not validate it against the running agent. A
malformed filter could be rejected — or, worse, be silently treated as "no match" and export
nothing.
- **THIS CHANGE ROLLS CILIUM.** Editing the HelmRelease restarts the agent DaemonSet across all
three nodes. BPF maps are preserved so established traffic should survive, but prod-3 currently
announces the Gateway VIP, **PiHole's DNS VIP** and Plex's VIP, so a lease change during the
rollout could briefly interrupt LAN DNS for the whole house. Not measured, and worth doing at a
quiet moment.
- **Log volume in practice.** Estimated "a few hundred to a few thousand lines a day" from the
observed request counts; never measured as flows. Both directions are exported and no `fieldMask`
is set, so each record is a full flow object. If it is noisy, narrow with `fieldMask` rather than
by dropping a filter.
- **Loki's retention for this data**, and whether the `{namespace="kube-system", app="cilium"}` label
set actually matches (it depends on the cilium pods carrying
`app.kubernetes.io/name`, which Alloy maps to `app` — I did not confirm that label exists on the
cilium DaemonSet pods). The query in the comment may need adjusting to `pod=~"cilium-.*"`.
- **That the exported flow actually contains the pre-SNAT address.** Hubble's *live* stream does
(measured). I am assuming the exporter sees the same flow objects; I did not confirm the exporter
is not fed a post-translation view.
- **The parity convention has no automated check.** I kept all three files in sync by hand because
the comments demand it; nothing in `ci/` or `conformance/` verifies cilium Helm↔Ansible parity, so
a future edit can still drift them silently.
@@ -0,0 +1,133 @@
---
date: 2026-10-04
branch: feat/pihole-declare-state
title: PiHole's operator-set state is now declared in git — the prerequisite for running more than one replica
---
## What changed
Phase 1 of making LAN DNS survive a node failure. The operator asked for multi-replica PiHole;
measurement showed that cannot be done safely first, because PiHole's important state was not
reproducible from git. A second replica with a fresh PVC would have come up **serving DNS and
blocking nothing, with a different admin password** — answers varying by which pod replied. This
branch closes that; the replica work is phase 2 and is deliberately NOT here.
**The undeclared-state inventory, measured not guessed.** `pihole.toml` marks every non-default
setting `### CHANGED`, and those that came from the environment `### CHANGED (env)`. The complete
live list on 2026-10-04:
| Setting | Status |
|---|---|
| `dns.upstreams`, `dns.listeningMode`, `dns.rateLimit.count`, `misc.dnsmasq_lines` | `### CHANGED (env)` — already declared in `catalog/pihole.yaml` |
| `files.macvendor` | `### CHANGED` — set by the image itself (container path), not operator state |
| `webserver.api.pwhash` | **`### CHANGED` — set out of band. Declared NOWHERE.** |
So exactly **one** operator-set value lived only on the PVC. Separately, the **adlists** were also
undeclared: `gravity.db` held one list (StevenBlack's hosts) and 72,234 gravity domains, with nothing
in this repo naming it.
- **`apps/wave-0/pihole-bootstrap-secret.sops.yaml` (new, SOPS/age).** Secret `pihole-bootstrap`,
key `webui-password`. Named to the `<svc>-bootstrap-secret.sops.yaml` convention so
`render.py --emit-waves` places it with no renderer change. The value is a 32-char random password
generated at authoring time and **never printed to a transcript**.
- **`catalog/pihole.yaml`:** `FTLCONF_webserver_api_password` sourced from that Secret.
`webserver.api.password` takes CLEARTEXT and FTL hashes it itself — verified in the running image,
where `pihole setpassword` *is* `setFTLConfigValue "webserver.api.password"`, commented upstream
"pihole-FTL will automatically hash the password". The PVC's `pwhash` becomes a derived artefact.
- **`catalog/pihole.yaml`:** a `lifecycle.postStart` hook that **reconciles** the declared adlist set
into `gravity.db` on every container start — adds missing, re-enables disabled, and **disables**
(never deletes) anything enabled but undeclared, running `pihole -g` only when something moved.
Same level-triggered idiom, and the same reasoning, as `catalog/qbittorrent.yaml`'s postStart.
- **`apps/wave-0/pihole.yaml`, `apps/wave-0/kustomization.yaml`:** re-rendered / secret registered.
**Why a postStart hook and not a file.** PiHole v6 keeps adlists as DB rows. `/etc/pihole/adlists.list`
still exists in `gravity.sh` but is **migration-only**: its import sits inside `migrate_to_database()`
behind `if [ ! -e "$gravityDBfile" ]`, so it fires only while *creating* a database. A ConfigMap
mounted there would be silently ignored on every pod this cluster runs today. There is also no
`pihole adlist` CLI subcommand, so SQL is the actual interface; FTL ships an embedded shell
(`pihole-FTL sqlite3`) so nothing had to be added to the image.
**The password is kept rather than set empty, deliberately.** The admin UI is already behind the
oauth2-proxy sidecar (`--allowed-group=platform-admins`), so an empty password would have been
simpler. But the `pihole` Service still publishes **port 80** (PiHole direct, bypassing the proxy on
`:4180`) and only the CiliumNetworkPolicy closes it — and this repo has a documented default-deny
drift history. An unauthenticated admin UI that can rewrite LAN DNS should not rest on one policy
staying correct. Narrowing that Service port is follow-up, not done here.
**SENSITIVE PATHS — this PR adds a `**/*.sops.yaml`, so `ci/approval-policy.sh` will BLOCK it.** It
needs the operator's `/approve-override <reason>` as a PR **review** of type "Comment". Not posted by
me: CLAUDE.md section 1 forbids an agent clearing this on its own PR.
## What I verified
Live prod, 2026-10-04, read-only except where noted.
- **The undeclared-state inventory above** — read from `pihole.toml`'s own `### CHANGED` markers, with
the password value masked. This is the measurement the whole branch rests on.
- **A fresh `gravity.db` seeds NO adlists.** The image's own schema template
`/etc/.pihole/advanced/Templates/gravity.db.sql` creates the `adlist` table and contains no
`INSERT INTO adlist` at all — grepped in the running image. Confirmed empirically below (0 rows).
This is why the adlist declaration is load-bearing and not cosmetic.
- **The adlists.list path really is migration-only** — read the guard in `/opt/pihole/gravity.sh`
(`migrate_to_database()`, `if [ ! -e "$gravityDBfile" ]`).
- **`webserver.api.password` is a real settable key** — `pihole-FTL --config webserver.api.password`
returns a masked value, and `/usr/local/bin/pihole`'s `setpassword` sets exactly that key.
- **THE RENDERED HOOK ACTUALLY WORKS — all four paths, extracted from `apps/wave-0/pihole.yaml` and
run in the live pod against THROWAWAY COPIES of `gravity.db` in `/tmp`** (production `gravity.db`
was never written, and `pihole -g` was stubbed so no 70k-domain download could start):
1. *Steady state* → `already matches the declared set - nothing to do`. No writes, no rebuild.
2. *True fresh DB built from the image's schema template* → 0 adlists before; hook added the
declared list and triggered the rebuild. **This is the fresh-PVC/new-replica case.**
3. *An undeclared list enabled* → disabled it (`enabled=0`), left the declared one alone, and did
not delete the row.
4. *Declared list present but disabled* → re-enabled it.
- **Required tools exist in the image:** `bash`, `expr`, `grep`, `printf`, `sleep`, `pihole-FTL`.
- **The Secret is genuinely encrypted** to the repo's age recipient; `stringData.webui-password`
starts `ENC[`. The gate's `no-plaintext-secrets (R-SEC-01)` L0 check passes.
- **Schema:** `check-jsonschema` against `schemas/servicedefinition.schema.json` passes.
- **Render determinism:** the canonical
`render.py --all catalog -o apps --wave-layout --no-image-automation` changed **only**
`apps/wave-0/pihole.yaml`. `render-golden` passes, so the hook's text also satisfies
`assert_substitution_safe` (no braced dollar expansion — the Flux envsubst contract).
- **Toolbox gate:** rc **3**, with `spec-immutability`, `decisions-log`, `lint`, `l0`,
`render-golden`, `l1`, `approval-policy` all **pass**. The rc 3 is the two usual environmental
skips — `gitea-settings` (no local `SETTINGS_API_TOKEN`) and `conformance` L2/L3
(`CLUSTER_AVAILABLE` unset). **Not green; reported as rc 3.**
## What I did NOT verify
- **Nothing here has been reconciled.** Flux has not applied any of it, so the password has never
been set by this mechanism and the hook has never run during a real container start. Everything
above is the rendered artifact tested out-of-band, plus the image's own source.
- **THE CURRENT ADMIN PASSWORD WILL STOP WORKING, and that is the intent.** FTL re-hashes
`webserver.api.password` on start, overwriting the existing `pwhash`. Whoever knows the present
password (nobody, which is why this started) loses it; the declared one replaces it. I have not
observed that replacement happen.
- **Cold-start cost is unmeasured and could matter.** `postStart` must complete before the container
is reported Running. On a fresh PVC the hook waits for `gravity.db` (bounded, up to 180s) and then
runs a real `pihole -g` (72k domains, network downloads). `apps-wave-0` is `wait: true` and
`apps-wave-1` `dependsOn` it, so a slow cold start **delays the app tier**. The steady-state path
exits in about a second (scenario 1), so this is a rebuild/first-boot cost only — but it is not
measured, and the stub in testing means `pihole -g`'s real duration here is unknown.
- **Whether `pihole -g` succeeds from inside the hook's environment.** Its failure is caught and the
existing `gravity.db` retained, so a failure degrades rather than breaks — untested live.
- **Concurrency.** Nothing serialises the hook against FTL's own scheduled gravity update. SQLite
handles the locking, and the hook's writes are three small statements, but no interleaving was
exercised.
- **MULTI-REPLICA — PHASE 2, NOT STARTED.** This branch only removes the blocker. The remaining work,
and it is substantial: a `replicas`/placement field on the ServiceDefinition schema (currently
`additionalProperties: false` with no such field), `render.py` emitting a StatefulSet with
`volumeClaimTemplates` (the config PVC is **ReadWriteOnce**, so a 2-replica Deployment cannot
work), pod anti-affinity, a PodDisruptionBudget (there is none today), re-rendered goldens, and
`conformance/**` updates — the last making phase 2 sensitive-path as well. The PVC rename a
StatefulSet forces will discard the existing `gravity.db`, which is only safe **because** of this
branch, and should be done only after this one is confirmed working in-cluster.
- **The real risk the operator named is NOT fixed by phase 2 either.** Replicas address *node*
failure. LAN DNS still depends on the cluster as a whole — etcd quorum, Cilium, Longhorn, a bad
reconcile. Quantified on 2026-10-04: with `tolerationSeconds=300` plus node-NotReady detection
plus a Longhorn RWO force-detach, a failure of the node running the pod is roughly **6-10 minutes
of no LAN DNS**; a failure of the node holding the `pihole-dns-*` L2 lease (currently a
*different* node — lease on k3s-prod-2, pod on k3s-prod-1) is tens of seconds. An out-of-cluster
secondary resolver carrying the same `address=` lines is the only option that removes the
dependency, and it was considered and not chosen.
- **Port 80 on the `pihole` Service is still published** and still closed only by policy. Not narrowed.
+117
View File
@@ -0,0 +1,117 @@
---
date: 2026-10-04
branch: docs/pihole-ha-verified
title: PiHole HA is VERIFIED on live prod — including a failover drill with zero dropped DNS queries
---
## What changed
**No manifests changed. This entry exists to correct the log.** The three PiHole/Plex entries merged
earlier today each say, correctly at the time, that nothing had been reconciled and that the outcome
was unverified:
- `decisions/2026-10-04-pihole-declare-state.md` — "Nothing here has been reconciled."
- `decisions/2026-10-04-pihole-multi-replica.md` — "Nothing has been reconciled. No StatefulSet
exists, no second replica has ever run, the anti-affinity has never been evaluated..."
All three are now **merged, reconciled and measured**, so those sentences are stale in exactly the way
§2b of CLAUDE.md warns about — a reader who found them would conclude the work is unproven. This entry
is the current state; it does not edit the earlier files (separate files, nothing to merge).
Delivered and live as of 2026-10-04, from PRs #43 (plex tcp/32400), #44 (declare PiHole state) and
#45 (PiHole 2 replicas + the mountPath bug):
- PiHole is a **2-replica StatefulSet**, one pod per node, with per-replica Longhorn volumes, a
PodDisruptionBudget, and an `up` SLI that follows the rendered workload kind.
- PiHole's admin password and adlists are **declared in git** and reproduce onto a fresh volume.
- PiHole's config PVC is mounted where PiHole actually writes (`/etc/pihole`), which it was not before.
## What I verified
All measured against live prod on 2026-10-04, after the merge of #45 (`dce20b7`).
**Reconcile.** `GitRepository` artifact `main@sha1:dce20b7`; `apps-wave-0`
`lastAppliedRevision=main@sha1:dce20b7`, `Ready=True/ReconciliationSucceeded`. It completed in roughly
**90 seconds**, well inside the Kustomization's `timeout: 5m` — the risk flagged in the multi-replica
entry ("whether `pihole -g` finishes inside the 5 m timeout") did **not** materialise. A transient
`Ready=False/DependencyNotReady: platform-config` seen mid-flight was the dependency cascade, not a
failure; `platform-config` was already `Ready=True` at the new revision moments later.
**Topology and objects.**
| Measured | Value |
|---|---|
| pods / nodes | `pihole-0` → **k3s-prod-3**, `pihole-1` → **k3s-prod-2** (2/2 Running each) — the required anti-affinity was satisfied |
| per-replica claims | `config-pihole-0`, `config-pihole-1` — both `Bound`, 2Gi |
| old `pihole-config` PVC | **pruned** (it held only `lost+found`, so nothing was lost) |
| old `pihole` Deployment | **pruned** — `No resources found in pihole namespace` |
| PodDisruptionBudget | `minAvailable 1`, `disruptionsAllowed 1`, `currentHealthy 2` |
**The mountPath bug is fixed.** `df` inside both pods reports `/etc/pihole` on
`/dev/longhorn/pvc-...` with **6.9 M used** — previously it was on `overlay` while the Longhorn volume
sat unused at `/data/config`. `backup.policy: daily-offcluster` now has real content to back up
instead of reporting success over an empty volume.
**Phase 1's declarations reproduce onto a FRESH volume — the point of doing it first.** Both replicas
booted with an empty `/etc/pihole`:
- **72,234 gravity domains** on each, rebuilt from the adlist declared in `catalog/pihole.yaml`.
- **The declared SOPS secret authenticates on both pods.** `POST /api/auth` using the container's own
`FTLCONF_webserver_api_password` returned `"valid":true` on `pihole-0` **and** `pihole-1` — so
Secret → env → FTL's own hashing → working login, identically on both. (The secret's value was never
printed; an earlier reading of `pwhash` as "unset" was a quoting bug in the check, disproven by an
empty password being rejected with `password incorrect` and then by this positive test.)
**User-facing behaviour through the VIP (192.168.2.23), from a LAN host.**
plex.home.keithjackson.dev -> 192.168.2.20 split-horizon intact
home.keithjackson.dev -> 192.168.2.20
unifi.home.keithjackson.dev -> 192.168.2.21
google.com -> 142.250.115.102 recursion to 8.8.8.8 works
doubleclick.net -> 0.0.0.0 blocking LIVE in FTL, not just in the DB
googleadservices.com -> 0.0.0.0
12 consecutive queries -> 12/12 answered
**THE FAILOVER DRILL — observed by the operator, 2026-10-04.** A single StatefulSet replica was
deleted. It was recreated in **~30 seconds**, and **DNS never dropped a request** throughout. This is
the first direct evidence that the replica count delivers what it was added for, rather than merely
rendering correctly.
**The SLI is not inert, and re-deriving it mattered.** Measured in Prometheus:
`kube_statefulset_status_replicas_ready{namespace="pihole", statefulset="pihole"}` returns **1 series,
value 2**; `kube_deployment_status_replicas_available{namespace="pihole"}` now returns **0 series**;
and Prometheus has `pihole-down` loaded as `state=inactive health=ok` with the StatefulSet expression.
Had the rule stayed Deployment-shaped, its `or absent(...)` branch would have matched the now-absent
series and **fired permanently** — a standing false page rather than silence. That is the concrete
payoff of defaulting `livenessWorkload.kind` from the rendered kind.
## What I did NOT verify
- **NODE failure, as opposed to pod failure.** The drill deleted a pod, which does not exercise the
`tolerationSeconds: 300` path at all — that timer only applies when a node goes NotReady. The
mechanism protecting DNS is the same one just proven (the surviving replica plus
`externalTrafficPolicy: Cluster` on the DNS LoadBalancers), so user-visible impact should likewise be
nil; what the 300 s still delays is the *replacement* replica, and during that window there is no
redundancy left. Untested. Pulling power from a node is the only real test.
- **DNS during the cutover itself.** I was not sampling resolution while #45 reconciled, so whether
there was a brief gap between the Deployment being pruned and the StatefulSet becoming Ready is
**unmeasured**. The drill above covers the steady-state failover case, not that one-off transition.
- **Two-node loss.** The hard anti-affinity means `replicas: 2` needs two schedulable nodes; losing
two would leave a replica `Pending` and, with `wait: true`, stall the app tier. Reasoned, not
exercised — and it coincides with etcd quorum loss on a 3-node control plane.
- **Longhorn capacity headroom.** Two 2Gi claims at 3 replicas each is ~12Gi where there was ~6Gi.
Both claims are `Bound` and healthy; free space was not checked.
- **Query history is now split per replica** and the admin UI shows only whichever pod answered.
Adlists and password are identical, so blocking and auth are consistent; the *reporting* is not, and
whether that is acceptable long-term is the operator's call.
- **The residual risk is unchanged, and it is the larger one.** Replicas address node failure. LAN DNS
still depends on the cluster — etcd quorum, Cilium, Longhorn, a bad reconcile — and only a resolver
outside the cluster carrying the same `address=` lines removes that dependency. Considered and not
chosen (operator decision, 2026-10-04).
- **Plex remote access (#43) is NOT covered by this entry.** Its two manual steps (the WAN tcp/32400
forward and Plex's "manually specify public port") and the outside-in path remain as
`decisions/2026-10-03-plex-remote-access-l4.md` describes them. The operator reported it working;
I have not measured it from off-LAN.
- **`--emit-waves` drift is still open.** Re-running it still wants to onboard `vm-demo.yaml` and
`keycloak.yaml`, both listed as intentionally not onboarded in `ci/render-golden.sh`. Unfixed; see
`decisions/2026-10-03-plex-remote-access-l4.md`.
@@ -0,0 +1,145 @@
---
date: 2026-10-04
branch: feat/pihole-multi-replica
title: PiHole runs two replicas on different nodes — and its config PVC was mounted where PiHole never writes
---
## What changed
Phase 2 of making LAN DNS survive a node failure (phase 1:
`decisions/2026-10-04-pihole-declare-state.md`). PiHole was one pod on one node, which for a
whole-house resolver cost more than "until it reschedules" — measured 2026-10-04:
| Failure | Recovery |
|---|---|
| the node running the pod dies | ~40s to mark NotReady + `tolerationSeconds: 300` before eviction + reschedule + a Longhorn RWO force-detach → **roughly 6-10 minutes with no LAN DNS** |
| the node holding the `pihole-dns-*` L2 lease dies | Cilium re-elects an announcer, tens of seconds |
Those were **different** nodes (lease on k3s-prod-2, pod on k3s-prod-1), so two of three nodes were
single points of failure for LAN DNS with wildly different blast radii.
**A new schema field, because this is intent and not a primitive.** `availability.replicas`
(schema **1.10.0**, mechanism in `schemas/renderer-contract.md` `### availability`). `1` or absent
renders a Deployment exactly as before — every pre-existing golden is byte-identical, verified. `>1`
renders, together:
- a **StatefulSet** instead of a Deployment. This is forced, not preferred: a longhorn PVC is
**ReadWriteOnce**, and one RWO claim cannot attach on two nodes, so a 2-replica Deployment does not
degrade — the second pod never schedules.
- longhorn storage as **per-replica `volumeClaimTemplates`** (`config-pihole-0`, `config-pihole-1`);
the standalone PVC is no longer emitted, since it would be an orphan nothing mounts. A `bulk`
entry stays a standalone PVC — it is a shared static NFS export, not per-replica state.
- **required** `podAntiAffinity` on `kubernetes.io/hostname`. `preferred` would let both replicas
land on one node and deliver none of the intended tolerance while reporting healthy.
- `podManagementPolicy: Parallel`, so a cold start costs the max of the replicas' first-boot work
rather than the sum — `apps-wave-0` has `timeout: 5m`.
- a **PodDisruptionBudget**, `minAvailable: 1`, so a node drain cannot take the last replica.
- `observability.livenessWorkload.kind` defaulting to `StatefulSet`, so the `up` SLI reads
`kube_statefulset_status_replicas_ready`. A Deployment-shaped rule against a StatefulSet
`absent()`s forever — an alert that can never fire.
`catalog/pihole.yaml` sets `replicas: 2`, not 3: two tolerates any single node loss and leaves a
spare node for the evicted replica under the hard anti-affinity. Three would pin one per node with no
spare, so a single node failure would leave a replica permanently `Pending` and — `apps-wave-0` being
`wait: true` — stall the app tier for as long as the node was down.
### The bug found on the way, and fixed here
**PiHole's config PVC was mounted at a path PiHole never writes, so it held nothing and all of its
state was ephemeral.** With no explicit `mountPath` the renderer defaults to `/data/<name>`; PiHole
keeps everything in `/etc/pihole`. Measured on live prod 2026-10-04: `/etc/pihole` (7.1 M —
`gravity.db`, `pihole.toml`, the query DB) was on the **overlay** filesystem, while the 2 Gi Longhorn
volume sat at `/data/config` holding `lost+found` and 24 K of nothing. Consequences, all live until
now:
- every restart silently discarded PiHole's entire state and re-downloaded 72 k gravity domains;
- `backup.policy: daily-offcluster` has been faithfully backing up an **empty** volume, which is
worse than no backup because it reports success;
- it also means phase 1 was understated: that state was not merely undeclared, it was **ephemeral**.
Same class of bug `catalog/plex.yaml` documents for its own `config` entry. Fixed in this branch
rather than its own because with the wrong path the new per-replica volumes would be two 2 Gi
Longhorn volumes (×3 Longhorn replicas each) holding only `lost+found` while all state stayed
ephemeral — paying for persistence and getting none. It also removes this change's main operational
risk: with `gravity.db` persisted, a restart is cheap instead of re-downloading 72 k domains inside a
wave with a 5 m timeout.
## What I verified
- **Back-compatibility, the thing most likely to break quietly:** after the renderer change and
before `catalog/pihole.yaml` declared anything, the canonical
`render.py --all catalog -o apps --wave-layout --no-image-automation` produced **zero diff** across
the whole `apps/` tree. `render-golden` passes.
- **The new behaviour is pinned by ~20 new `render.py --selftest` assertions** (so `ci/render-golden.sh`
hard-fails on a regression, and no `conformance/**` change was needed): `replicas: 1` still renders a
Deployment + standalone PVC + no PDB; `replicas: 2` renders a StatefulSet and **no** standalone
longhorn PVC, carries the replica count, omits `strategy`, sets `Parallel` and `serviceName`, names
the claim template exactly as the mounted volume, keeps RWO/longhorn on it, does **not** duplicate
that volume in `pod.volumes`, still mounts it on the container, renders required hostname
anti-affinity, renders exactly one `minAvailable: 1` PDB, and switches the SLI to
`kube_statefulset_status_replicas_ready`. A mixed longhorn+bulk case asserts the bulk share stays a
standalone PVC and an ordinary pod volume.
- **Rendered pihole output, read back:** `replicas: 2`, `serviceName: pihole`,
`podManagementPolicy: Parallel`, no `strategy`, claim template `config` (RWO/longhorn/2Gi),
anti-affinity `kubernetes.io/hostname`, `pod.volumes: []`, mount `config -> /etc/pihole`,
PDB `minAvailable: 1`, SLI `kube_statefulset_status_replicas_ready`.
- **The `/etc/pihole` mount is safe, evidenced from the image's own init rather than assumed:**
`/usr/bin/start.sh` is PID 1 and runs as **uid 0**; its line 5 is
`chown -R pihole:pihole /etc/pihole/ /var/log/pihole/`, so a fresh root-owned volume has its
ownership fixed before anything else starts (**no `fsGroup` needed, and one would be inert**); it
calls `migrate_gravity`, whose `migrate_to_database()` creates the gravity database when
`[ ! -e "$gravityDBfile" ]`; FTL writes `pihole.toml` itself from the `FTLCONF_*` env; and the
image's own default for `files.macvendor` was moved **out** of that directory, which is what a
maintainer does to a path they expect to be a volume.
- **The PVC really is unused:** `df` showed `/etc/pihole` on `overlay` and
`/dev/longhorn/pvc-849edb86-...` on `/data/config`; `ls -A /data/config` → `lost+found` only.
- **The gate caught a real regression and it is fixed.** The first run came back **rc 1**:
`alert-rules-unit-tested` failed because `apps/wave-0/tests/app-slis.test.yaml` fed pihole a
`kube_deployment_status_replicas_available` series and expected a `deployment: pihole` label. Three
input series, the firing expectation and the file header were updated;
`platform/monitoring/tests/run.sh apps/wave-0/tests/app-slis.test.yaml` → **SUCCESS** (6 rules).
- **Schema:** `check-jsonschema` passes over all of `catalog/*.yaml`.
- **Toolbox gate:** rc **3**, with `spec-immutability`, `decisions-log`, `lint`, `l0`,
`render-golden`, `l1`, `approval-policy` all **pass**. The rc 3 is the two environmental skips —
`gitea-settings` (no local `SETTINGS_API_TOKEN`) and `conformance` L2/L3 (`CLUSTER_AVAILABLE`
unset). **Not green; reported as rc 3.**
- **No sensitive paths touched**, so unlike the previous two branches this one needs no
`/approve-override` — confirmed against `infra/gitea/approval-policy.json`.
## What I did NOT verify
- **Nothing has been reconciled.** No StatefulSet exists, no second replica has ever run, the
anti-affinity has never been evaluated by the scheduler, the PDB has never been consulted, and the
`/etc/pihole` mount has never been exercised on a real pod. Everything above is the rendered
artifact plus the image's own source.
- **THE ROLLOUT WILL BRIEFLY DROP LAN DNS, and I have not measured for how long.** `postStart` must
complete before a container is reported Running, so a pod is not Ready — and the Service has no
endpoints — until phase 1's adlist hook finishes. On this transition both replicas start with an
empty `/etc/pihole`, so the hook finds a fresh `gravity.db` with zero adlists and runs a real
`pihole -g` (72 k domains, network download) before either pod becomes Ready. **Do this at a quiet
time.** Two mitigating facts: every pihole restart has *already* paid this cost (state was
ephemeral), and after this change `gravity.db` persists so later restarts should not. If it turns
out slow, backgrounding the gravity rebuild inside the hook would decouple readiness from it, at
the cost of a window where DNS resolves but does not block — not done here.
- **Whether `pihole -g` finishes inside `apps-wave-0`'s 5 m `timeout`.** `Parallel` was chosen to
make this the max rather than the sum of two first boots, but the real duration is unmeasured (it
was stubbed during phase 1's testing). If the wave times out, the Kustomization reports failed even
though the pods may come up seconds later.
- **The old PVC's deletion.** `apps-wave-0` has `prune: true`, so removing `pihole-config` from the
rendered output should delete it. That destroys nothing (it holds `lost+found`), but I have not
observed the prune, and I did not check whether Longhorn retains the backing volume afterwards.
- **The transition overlap.** For a moment the pruned Deployment's pod and the new StatefulSet pods
may both match the Service selector. Both are configured identically from git so this should be
benign — unobserved.
- **Longhorn capacity.** Two 2 Gi claims at 3 Longhorn replicas each is ~12 Gi of real storage where
there was ~6 Gi. Not checked against free space.
- **Whether two independent query databases are acceptable to the operator.** Stats and query history
now split per replica, and the admin UI shows only the pod that answered. Adlists and password are
identical (phase 1), so blocking and auth are consistent; the *reporting* is not.
- **The residual risk is unchanged and is the larger one.** Replicas address node failure. LAN DNS
still depends on the cluster — etcd quorum, Cilium, Longhorn, a bad reconcile — and only a resolver
outside the cluster carrying the same `address=` lines removes that. Considered and not chosen
(operator decision, 2026-10-04).
- **`tolerationSeconds: 300` is untouched.** With two replicas the surviving one serves immediately, so
the 5-minute eviction delay no longer gates recovery — but it still delays the *replacement* replica,
and during that window there is no redundancy left.
@@ -0,0 +1,139 @@
---
date: 2026-10-04
branch: fix/plex-advertise-plexdirect
title: Plex vanished from the plex.tv account — every advertised connection was uncompletable; advertise the plex.direct name instead of the bare VIP
---
## What changed
Reported symptom: the server no longer appears on the operator's plex.tv account; `plex.home.keithjackson.dev`
shows "not authorized"; connecting straight to the VIP + port works.
**Root cause, measured: `customConnections` held two hand-typed URLs and NEITHER could ever complete,
so Plex had nothing publishable.** Because `customConnections` OVERRIDES Plex's own connection
publishing, the server ended up advertising only dead endpoints. Live `Preferences.xml`, 2026-10-04:
customConnections="https://plex.home.keithjackson.dev:32400/,https://192.168.2.24:32400/"
ManualPortMappingMode="1" ManualPortMappingPort=<ABSENT>
- `https://192.168.2.24:32400` — **TLS can never validate.** Plex serves 32400 with
`CN=*.130072f20c334d6c8f63d0dfef87309b.plex.direct` and **no IP SAN**, so a bare-IP https URL fails
for every client. Not theoretical: Plex's log carries a continuous storm of
`CERT: incomplete TLS handshake from <node> ... sslv3 alert certificate unknown`, every few seconds,
from **real LAN clients** arriving through the new `plex-l4-tcp` VIP.
- `https://plex.home.keithjackson.dev:32400` — **nothing listens.** The shared Gateway serves that host
on 443; measured `http=000` (connect failed) against `192.168.2.20:32400`.
Consequence chain, each link measured: no completable connection -> plex.tv could publish nothing
(`MyPlex: mapping state set to 'Mapped - Not Published'`, repeatedly) -> Plex fell back to **Plex Relay**
(`startRelay`, remote forward to 127.0.0.1:32401) -> **the server disappeared from the account**, and
clients reported "not authorized".
The fix advertises Plex's own `<dashed-ip>.<serverhash>.plex.direct` form, which is public DNS resolving
to the embedded address — so it points at the LAN VIP *and* matches the wildcard cert.
- **`catalog/plex.yaml`:** `ADVERTISE_IP: ${PLEX_ADVERTISE_URL}` added, replacing the long-standing
DEFERRAL note. The deferral had weighed only the L7 Gateway URL; the operator chose the native L4 path
on 2026-10-03, so the open question was never "Gateway or not" but "which URL has a valid cert".
- **`clusters/base/cluster-vars.yaml`:** new `PLEX_ADVERTISE_URL` knob (+ substitution-inventory comment
updated to name `plex: PLEX_ADVERTISE_URL`). The base default is an explicit **non-functional
placeholder** — dev is decommissioned and has no claimed server, and
`StrictPostBuildSubstitutions` makes an undefined var a hard failure, so the default only has to exist
and be correctly shaped.
- **`clusters/prod/kustomization.yaml`:** prod value
`https://192-168-2-24.130072f20c334d6c8f63d0dfef87309b.plex.direct:32400`.
- **`apps/wave-0/plex.yaml`:** re-rendered with the canonical command
(`python3 catalog/render.py --all catalog -o apps --wave-layout --no-image-automation`). Two added
lines, nothing else.
**Why a whole-URL cluster-var and not something built from `${PLEX_L4_VIP}`:** postBuild substitution is
plain envsubst and cannot turn `192.168.2.24` into `192-168-2-24`, and `<serverhash>` is the server's
certificate identity, derivable from nothing in this tree. The dashed IP and `${PLEX_L4_VIP}` are two
halves of one address and **nothing checks that they agree** — noted in both files.
**SENSITIVE PATHS — this PR touches `clusters/**` (two files), so `ci/approval-policy.sh` will BLOCK it.**
It needs the operator's `/approve-override <reason>` posted as a PR **review** of type "Comment".
Deliberately not posted here: CLAUDE.md §1 forbids an agent clearing this on its own PR, and the agent
account holds `owner`, so the prohibition is a rule rather than a limit.
## What I verified
All measurements against live prod, 2026-10-04, read-only. Secrets handled per CLAUDE.md §6: preference
attributes were read by name-scoped grep, never by dumping `Preferences.xml` (it holds `PlexOnlineToken`),
and the token was reported only as `<PRESENT,len=22>`.
- **THE FIX ITSELF, with full TLS verification (no `curl -k`)** — the one measurement the whole change
rests on:
- `https://192-168-2-24.130072f20c334d6c8f63d0dfef87309b.plex.direct:32400/identity` -> **`http=200`, TLS verify OK**
- `https://192.168.2.24:32400/identity` -> **`http=000`, cert validation FAILED**
- that name resolves to `192.168.2.24` (`getent hosts`), confirming the dashed-IP mechanism works from
inside this network and is not blocked by DNS-rebinding protection on the resolver path tested.
- **The server is still claimed — this was never a lost claim.** `/identity` -> `claimed="1"` with the real
`machineIdentifier`; `PlexOnlineToken` present, `PlexOnlineUsername="jakman85"`.
- **The certificate, read off the live listener:** exactly one SAN,
`DNS:*.130072f20c334d6c8f63d0dfef87309b.plex.direct`. No IP SAN. This is why the bare-IP URL fails.
- **The publish payload Plex actually sent to plex.tv**, which is what proves the connection list was the
problem rather than a guess: `PUT https://servers.plex.tv/devices/<id>?Connection[][uri]=https://plex.home.keithjackson.dev:32400&Connection[][uri]=https://192.168.2.24:32400&Connection[][uri]=http://136.51.115.252:32400&Connection[][uri]=http://10.0.2.136:32400&httpsEnabled=1...`
— all four unreachable from a LAN client or from plex.tv.
- **`Mapped - Not Published`** at every reachability check across the whole log, and an active **Plex Relay**
session — the documented fallback when nothing is directly publishable.
- **The `certificate unknown` TLS failures come from real client traffic, not a probe.** The source
`10.0.1.78` resolves via `cilium-dbg bpf ipcache get` to **identity 1 = `reserved:host`**, i.e. LAN
clients SNAT'd through `plex-l4-tcp` (`externalTrafficPolicy: Cluster`) on prod-3.
- **The Gateway is NOT broken, and my first reading of it was wrong.** A 403 `Access denied` from
`server: envoy` on the Gateway path turned out to be an artifact of probing from inside the plex pod:
**all 16** Gateway hostnames return 403 from there, because Cilium's Gateway preserves the original
source identity and enforces the destination's ingress policy. Plex's own log shows a concurrent,
**working, signed-in** browser session through the Gateway returning 200s. The HTTPRoute is
`Accepted=True`/`ResolvedRefs=True` with no filters, and it is the only route claiming that hostname.
- **Cilium is not denying the Gateway->Plex hop:** `cilium-dbg bpf policy get 3796` shows
`Allow Ingress reserved:ingress 32400/TCP`, PROXY PORT `NONE`, with 141k packets counted. No L7/HTTP
rules and no CCNPs exist anywhere in the cluster.
- **In-cluster consumers were never affected:** Seerr's recently-added scans and watchlist syncs complete
cleanly with no auth errors; there are **zero** HTTP 401s in Plex's log (the five ` 401 ` hits are
transcoder segment numbers).
- **`ADVERTISE_IP`'s mechanism, in the running image rather than from docs:**
`/etc/cont-init.d/40-plex-first-run` line 127 does `setPref "customConnections" "${ADVERTISE_IP}"`,
outside the claim guard, and `/.firstRunComplete` (lines 9/139) is on the container overlay, not the
`/config` PVC — so it re-applies on every pod start. Editing the env rolls the Deployment, which applies it.
- **Toolbox gate** (`./infra/devcontainer/dev.sh run bash -c './ci/gate.sh'`): **rc 3**, with
`spec-immutability`, `decisions-log`, `lint`, `l0`, `render-golden`, `l1` and `approval-policy` all
**pass**. The rc 3 is the two known environmental skips — `gitea-settings` (no local
`SETTINGS_API_TOKEN`) and `conformance` L2/L3 (`CLUSTER_AVAILABLE` unset). **Not green. Reported as rc 3.**
- **`render-golden` passing is the specific proof** that the catalog edit and the committed golden agree;
the rendered diff is exactly two lines and no other service's manifest moved.
## What I did NOT verify
- **THE OUTCOME. Nothing here has been observed to put the server back on the plex.tv account.** The
change is unreconciled: `ADVERTISE_IP` is absent from the live Deployment, the live
`customConnections` still holds the two broken URLs, and Plex has not been restarted. What is proven is
that the *new URL answers 200 with a valid certificate* and that *every currently advertised URL cannot
complete* — a necessary-and-plausibly-sufficient argument, not a demonstrated fix.
- **Whether plex.tv will publish and list the server once this lands.** plex.tv's decision is made
off-network and cannot be measured from here. A LAN-only connection may still leave the account showing
the server as remotely unreachable even when local clients work.
- **REMOTE (off-LAN) ACCESS IS NOT FIXED BY THIS, and may still be fully broken.** The advertised URL
resolves to an RFC1918 address, so it serves LAN clients only. The off-repo WAN tcp/32400 port-forward
(`runbooks/plex-remote-access.md`) is still **unverified** — `http://136.51.115.252:32400` was
unreachable from inside the LAN, but 2026-10-03 established there is no NAT hairpin here, so that is
**inconclusive**, not proof of absence. This repo has no off-LAN vantage point.
- **`ManualPortMappingMode="1"` with `ManualPortMappingPort` ABSENT is left as-is.** Manual public-port
mapping is enabled with no port set — a half-configured state I did not change and whose exact effect on
publishing I did not isolate. There is **no GitOps path** to it (2026-10-03: the image supports no
`PLEX_PREFERENCE*` of any kind), so it is an operator UI step.
- **Whether the operator intended the hand-typed URLs** to override the 2026-10-03 native-L4 design, or
typed them while debugging. I did not alter live preferences; the env var will overwrite
`customConnections` on the next pod start, which is a deliberate transfer of ownership from the web form
to git and will **silently discard** anything typed there since.
- **The `plex.direct` hash's stability.** Treated as server identity and read once from the live cert. I
did not establish what reissues it, so this URL could go stale with no alert; nothing in CI or the
conformance suite checks that the dashed IP still matches `${PLEX_L4_VIP}` or that the hash is current.
- **Resolver behaviour for the whole LAN.** `plex.direct` resolved correctly from a *pod* (cluster DNS
path). LAN clients resolve via PiHole, and dnsmasq's `stop-dns-rebind` would reject a public answer
carrying a private address. I did **not** test resolution from a LAN client, and this is the most likely
way the fix still fails.
- **The CI approval-policy outcome.** The local stage reported green, but that is an offline N/A, not a
verdict: this PR touches `clusters/**`, so CI will block pending the operator's override.
- **Why PMS restarted.** The process came up at 05:26 UTC while the pod is 2d2h old with 0 restarts, so
something restarted Plex inside the container. Unexplained and not investigated.
@@ -306,19 +306,27 @@ node_baseline_dns_servers:
# k3s_base_domain, below). It reaches the issuer through the NODE resolver, i.e. through # k3s_base_domain, below). It reaches the issuer through the NODE resolver, i.e. through
# these PUBLIC upstreams — not through CoreDNS's split-horizon answer. # these PUBLIC upstreams — not through CoreDNS's split-horizon answer.
# #
# THIS USED TO BE BROKEN, AND THE 2026-09-04 SUBDOMAIN SPLIT FIXED IT. While prod was # THE PUBLIC ANSWER IS NOW THE WAN, SO THE ISSUER IS PINNED (2026-10-03). Since
# authored to serve dev's hostnames, a prod node resolving keycloak.home.keithjackson.dev # platform/gateway/gateway.yaml set an external-dns `target`, every public name is a CNAME
# publicly got DEV's Gateway VIP (192.168.1.53) — the wrong cluster, on the wrong LAN, so # to wan.home.keithjackson.dev = the home WAN IP. The SOHO router does NOT hairpin: from the
# kubectl OIDC SSO on prod could not work at all. Now prod's issuer is # LAN, WAN:443 answers with the router's own self-signed placeholder cert (measured from
# keycloak.prod.home.keithjackson.dev, and the public record for that name is published by # k3s-prod-2/-3 2026-10-03: `curl` exit 60, ssl_verify_result=18). The apiserver would then
# PROD's own external-dns pointing at PROD's Gateway VIP (192.168.2.20). The public answer # be unable to fetch its issuer's discovery/JWKS, so kubectl OIDC SSO would fail on the
# and the split-horizon answer therefore AGREE, and no /etc/hosts pin is needed. # next k3s restart or Keycloak key rotation. node_baseline_hosts_pins (below) pins the
# issuer host to the Gateway VIP in /etc/hosts, which glibc consults before these
# resolvers. (History: before the 2026-09-04 subdomain split the public answer was DEV's
# VIP; after it, the public answer was prod's own VIP and no pin was needed.)
# #
# STILL TO VERIFY on prod bring-up (PROD-PROVISIONING.md §10): this holds only once prod's # The cert-based admin kubeconfig never depends on any of this. It is the break-glass path.
# external-dns has actually published the record. Until then the issuer does not resolve
# from the nodes and kubectl SSO fails — the cert-based admin kubeconfig is the break-glass
# path, and it always works. Ordering, not a design gap.
node_baseline_dns_search: [] node_baseline_dns_search: []
# /etc/hosts pins: node-process names that must reach the in-cluster Gateway directly rather
# than via the public (WAN, non-hairpinned) answer. See "THE PUBLIC ANSWER IS NOW THE WAN" above.
# [parity] the IP MUST equal GATEWAY_VIP in clusters/prod/kustomization.yaml (192.168.2.20),
# and the name MUST follow k3s_oidc_issuer_url's host (roles/k3s_server/defaults/main.yml).
node_baseline_hosts_pins:
- ip: "192.168.2.20"
names:
- "keycloak.{{ k3s_base_domain }}"
# --- platform hostname suffix, ANSIBLE SIDE (R-ENV-02, R-DNS-01) -------------------- # --- platform hostname suffix, ANSIBLE SIDE (R-ENV-02, R-DNS-01) --------------------
# PROD SERVES ITS OWN SUBDOMAIN. [parity] MUST equal BASE_DOMAIN in clusters/prod/ # PROD SERVES ITS OWN SUBDOMAIN. [parity] MUST equal BASE_DOMAIN in clusters/prod/
@@ -45,17 +45,34 @@ hubble:
enabled: true enabled: true
ui: ui:
enabled: true enabled: true
# Static flow export -> cilium-agent stdout. Kept EQUAL to the Flux values
# (platform/cilium/helmrelease.yaml), which carry the full rationale: it records the PRE-SNAT
# client address for Plex's raw tcp/32400, which Plex itself cannot log because every
# LoadBalancer Service here is externalTrafficPolicy: Cluster and the VIP lease holder SNATs the
# client. Present here so a BOOTSTRAP render does not differ from what Flux reconciles -- a
# mismatch would show up as a permanent Helm diff and an avoidable agent rollout. Scoped by PORT,
# not namespace: the flow carrying the real client address does not match a namespace filter.
export:
static:
enabled: true
filePath: stdout
allowList:
- '{"destination_port":["32400"]}'
- '{"source_port":["32400"]}'
# Ingress VIP announcement on the NAT LAN. IP pool / CiliumL2AnnouncementPolicy # Ingress VIP announcement on the NAT LAN. IP pool / CiliumL2AnnouncementPolicy
# (from the reserved 10.73.0.240-.250 range) is authored by WS-NET in Phase 2. # (from the reserved 10.73.0.240-.250 range) is authored by WS-NET in Phase 2.
l2announcements: l2announcements:
enabled: true enabled: true
# k3s ships its own cgroup mount; point Cilium at it instead of auto-mounting. # Point Cilium at the host's real cgroup2 root (/sys/fs/cgroup, mounted by systemd) instead of
# auto-mounting. NOT /run/cilium/cgroupv2: nothing mounts cgroup2 there, so the agent mounted its
# OWN namespaced cgroup and socket-LB covered only itself — host processes (the apiserver) lost
# Service/LB translation. [parity] platform/cilium/helmrelease.yaml explains (2026-10-03).
cgroup: cgroup:
autoMount: autoMount:
enabled: false enabled: false
hostRoot: /run/cilium/cgroupv2 hostRoot: /sys/fs/cgroup
# Roll the cilium agent DaemonSet ONE node at a time. [parity] must match the # Roll the cilium agent DaemonSet ONE node at a time. [parity] must match the
# platform/cilium HelmRelease. The cilium 1.20.1 chart defaults this to 2, which on a # platform/cilium HelmRelease. The cilium 1.20.1 chart defaults this to 2, which on a
@@ -242,3 +242,9 @@ node_baseline_dns_search:
node_baseline_dns_options: node_baseline_dns_options:
- timeout:2 - timeout:2
- attempts:2 - attempts:2
# Static /etc/hosts entries (tags: dns, hosts), as a list of {ip, names}. EMPTY by default:
# dev needs none. Prod pins its OIDC issuer host to the Gateway VIP because the public
# answer for it is the non-hairpinned WAN IP (inventory/group_vars/k3s_prod/vars.yml).
# Written as ONE marked block, so removing an entry here removes it from the node, and
# an empty list removes the block entirely.
node_baseline_hosts_pins: []
@@ -1090,3 +1090,22 @@
{% endif %} {% endif %}
when: node_baseline_dns_mechanism == 'resolv-conf-file' when: node_baseline_dns_mechanism == 'resolv-conf-file'
tags: [dns] tags: [dns]
# /etc/hosts pins — tag `dns` (and `hosts` on its own). Some node processes must reach a
# public hostname at the in-cluster Gateway, not at its public answer. On prod, the
# kube-apiserver's OIDC issuer resolves publicly to the WAN IP, which the router does not
# hairpin. glibc reads /etc/hosts before any nameserver (nsswitch `files dns`), so a pin wins
# regardless of which resolver mechanism above is in effect. One marked block: entries
# dropped from node_baseline_hosts_pins disappear from the node, and an empty list
# removes the block.
- name: Pin node-process hostnames in /etc/hosts
ansible.builtin.blockinfile:
path: /etc/hosts
marker: "# {mark} node_baseline hosts pins (Ansible, tags: hosts)"
block: |
{% for pin in node_baseline_hosts_pins %}
{{ pin.ip }} {{ pin.names | join(' ') }}
{% endfor %}
state: "{{ 'present' if node_baseline_hosts_pins | length > 0 else 'absent' }}"
backup: true
tags: [dns, hosts]
+78 -5
View File
@@ -101,19 +101,92 @@ spec:
enabled: true enabled: true
ui: ui:
enabled: true # exposure gated behind oauth2-proxy forward-auth later (ADR-0014) enabled: true # exposure gated behind oauth2-proxy forward-auth later (ADR-0014)
# --- STATIC FLOW EXPORT: persist the PRE-SNAT client address for Plex (2026-10-04) ---
# [parity] MUST equal Ansible: hubble.export.static.{enabled,filePath,allowList}
#
# WHY THIS EXISTS. Plex's own log cannot show who connected. Every LoadBalancer Service in
# this cluster is `externalTrafficPolicy: Cluster`, so the node holding the L2 lease for the
# VIP SNATs the client before forwarding to the backend pod. Measured 2026-10-04: Plex had
# logged 3,214 requests from `10.0.1.x` (the lease holder k3s-prod-3's own address, Cilium
# identity 1 = reserved:host) and ZERO from any 192.168.x address, ever. No X-Forwarded-For
# either -- it serves raw tcp/32400, not HTTP through the Gateway.
#
# THE ADDRESS IS NOT LOST, ONLY UNRECORDED. Cilium observes the flow at ingress, BEFORE its
# own translation, so Hubble already has the true source. Measured on the lease holder:
# 192.168.2.133 -> 10.0.0.135 (real LAN client -> the Plex pod)
# 10.0.1.78 -> 10.0.0.135 (the same traffic, post-SNAT -- what Plex sees)
# What was missing is RETENTION: the ring buffer was 4095/4095 flows at ~303 flows/s, i.e.
# about THIRTEEN SECONDS of history, with hubble metrics disabled and no exporter configured.
#
# WHY NOT FIX THE SNAT INSTEAD. `externalTrafficPolicy: Local` would preserve the address in
# Plex's own log, but cilium 1.20's L2 announcer is explicitly incompatible with it -- upstream
# docs for this exact version: "incompatible with the externalTrafficPolicy: Local on services
# as it may cause service IPs to be announced on nodes without pods causing traffic drops",
# and "L2 announcements isn't currently aware of this setting". Live proof that this is not
# theoretical: the VIP is announced by k3s-prod-3 while the pod runs on k3s-prod-1, so the
# flip would black-hole tcp/32400 immediately. Making it safe would mean pinning BOTH the pod
# and the announcement to one node and giving up Plex's ability to reschedule -- a real
# availability loss to buy a log field. (It is the same trap platform/crafty/service-l4.yaml
# documents from an 8-day Minecraft outage.) DSR was also rejected: routing-mode here is
# vxlan, not native/geneve, and DSR returns bypass the ingress node, which breaks the SOHO
# router's stateful NAT on the remote path.
#
# `filePath: stdout` RATHER THAN A FILE, deliberately. Grafana Alloy already runs as a
# DaemonSet tailing every pod's logs into Loki (platform/monitoring/alloy.yaml), so stdout
# reaches Loki with NO new hostPath mount, no file-rotation handling and no Alloy change.
# Upstream documents it: "To get Hubble flows directly exported to the logs instead of written
# to a rotated file, `stdout` can be defined as `hubble-export-file-path`." fileMaxSizeMb /
# fileMaxBackups are therefore left at chart defaults and do not apply.
# Query: {namespace="kube-system", app="cilium"} |= "32400"
#
# SCOPED BY PORT, NOT BY NAMESPACE -- and that is a measured decision, not a preference. A
# `--to-namespace plex` query returned ONLY the post-SNAT flows; the flow carrying the real
# client address did NOT match it, because at the point of observation the destination
# identity is not yet resolved to the plex pod. Filtering by namespace would therefore drop
# exactly the record this change exists to capture. Port it is.
#
# Both directions are listed so the return path is captured too. Volume is small (a few
# hundred to a few thousand lines a day); if it ever becomes noisy, narrow it with
# `fieldMask` rather than by removing a filter.
export:
static:
enabled: true
filePath: stdout
allowList:
- '{"destination_port":["32400"]}'
- '{"source_port":["32400"]}'
# --- L2 announcement for the ingress VIP on the flat LAN (docs/09, OQ-1 resolved) --- # --- L2 announcement for the ingress VIP on the flat LAN (docs/09, OQ-1 resolved) ---
# [parity] MUST equal Ansible: l2announcements.enabled: true. IP pool + # [parity] MUST equal Ansible: l2announcements.enabled: true. IP pool +
# CiliumL2AnnouncementPolicy (reserved 10.73.0.240-.250) authored by WS-NET in Phase 2. # CiliumL2AnnouncementPolicy (reserved 10.73.0.240-.250) authored by WS-NET in Phase 2.
l2announcements: l2announcements:
enabled: true enabled: true
# --- cgroup: k3s ships its own cgroup mount; point Cilium at it, don't auto-mount --- # --- cgroup: point Cilium at the HOST's cgroup2 root, which systemd mounts at /sys/fs/cgroup ---
# [parity] MUST equal Ansible cgroup block. Not in the deliverable's headline list, but it IS # [parity] MUST equal Ansible cgroup block (roles/cilium/templates/cilium-values.yaml.j2).
# part of the working CNI config on k3s: reconciling without it lets Cilium try to auto-mount #
# cgroupv2 and break on adopt. Kept in parity for a safe Phase-2 adoption. # FIXED 2026-10-03 — hostRoot WAS /run/cilium/cgroupv2, AND THAT SILENTLY BROKE SOCKET-LB FOR
# EVERY HOST PROCESS. With autoMount disabled, the chart only bind-mounts whatever already exists
# at hostRoot ("it's expected that users have mounted cgroup2 filesystem at the specified
# cgroup.hostRoot" — cilium 1.20.1 values.yaml). Nothing ever mounted cgroup2 at
# /run/cilium/cgroupv2 on these nodes (it is an empty DirectoryOrCreate hostPath), so the agent
# mounted one ITSELF from inside its own private cgroup namespace. That mount's root is the
# agent container's OWN leaf cgroup, so cil_sock4_connect & co. were attached there and covered
# only the agent. Every other host-netns process (the k3s apiserver in
# /system.slice/k3s.service, curl over SSH) was untranslated: Service ClusterIPs timed out from
# every node, and the node holding the Gateway's L2 lease could not reach the Gateway VIP at all
# ("no route to host"). That is why k3s-prod-1's apiserver logged `oidc: authenticator not
# initialized` from 2026-09-12 on — kubectl SSO through the kube-vip VIP failed outright.
# Measured on k3s-prod-1 before this change: TCP connect to 192.168.2.20:443, 10.43.225.79:443
# and 10.43.59.141:8080 SUCCEEDED from inside the agent container (the covered cgroup) and
# FAILED from the host, same node, same netns. Full write-up:
# decisions/2026-10-03-cilium-cgroup-hostroot.md.
#
# /sys/fs/cgroup IS a cgroup2 mount in the host's root cgroup namespace on every node (verified
# with findmnt on all three), so bind-mounting it gives the agent the real host root. autoMount
# stays off because the mount it would create already exists.
cgroup: cgroup:
autoMount: autoMount:
enabled: false enabled: false
hostRoot: /run/cilium/cgroupv2 hostRoot: /sys/fs/cgroup
# --- Agent rollout: ONE node at a time (blast-radius bound) — 2026-09-01 incident --- # --- Agent rollout: ONE node at a time (blast-radius bound) — 2026-09-01 incident ---
# [parity] MUST equal Ansible: updateStrategy.rollingUpdate.maxUnavailable: 1. # [parity] MUST equal Ansible: updateStrategy.rollingUpdate.maxUnavailable: 1.
# The chart's own default is 2 (cilium 1.20.1 values.yaml: updateStrategy.rollingUpdate. # The chart's own default is 2 (cilium 1.20.1 values.yaml: updateStrategy.rollingUpdate.
+16 -2
View File
@@ -38,14 +38,28 @@ hubble:
enabled: true enabled: true
ui: ui:
enabled: true enabled: true
# [parity] static flow export -> cilium-agent stdout -> Alloy -> Loki. Records the PRE-SNAT
# client address for Plex's raw tcp/32400, which Plex's own log cannot show (every LB Service here
# is externalTrafficPolicy: Cluster, so the VIP lease holder SNATs the client). Scoped BY PORT,
# not namespace: the flow carrying the real client IP does not match a namespace filter. Full
# rationale, measurements and the rejected alternatives are in helmrelease.yaml.
export:
static:
enabled: true
filePath: stdout
allowList:
- '{"destination_port":["32400"]}'
- '{"source_port":["32400"]}'
# [parity] ingress VIP announcement on the flat LAN (docs/09, OQ-1) # [parity] ingress VIP announcement on the flat LAN (docs/09, OQ-1)
l2announcements: l2announcements:
enabled: true enabled: true
# [parity] k3s provides the cgroupv2 mount; do not auto-mount # [parity] the host's cgroup2 root is /sys/fs/cgroup (systemd mounts it); do not auto-mount.
# NOT /run/cilium/cgroupv2: nothing mounts cgroup2 there, so socket-LB attached to the agent's own
# cgroup and host processes lost Service/LB translation (2026-10-03 — see helmrelease.yaml).
cgroup: cgroup:
autoMount: autoMount:
enabled: false enabled: false
hostRoot: /run/cilium/cgroupv2 hostRoot: /sys/fs/cgroup
# [parity] roll the agent DaemonSet ONE node at a time. Overrides the cilium 1.20.1 chart # [parity] roll the agent DaemonSet ONE node at a time. Overrides the cilium 1.20.1 chart
# default of 2, which on 3 nodes lets a single bad render break 2/3 agents at once — as the # default of 2, which on 3 nodes lets a single bad render break 2/3 agents at once — as the
# 2026-09-01 incident did (k8sServiceHost: "" → the `config` init container fell back to the # 2026-09-01 incident did (k8sServiceHost: "" → the `config` init container fell back to the
+24
View File
@@ -20,6 +20,30 @@ A wildcard `*.keithjackson.dev` matches only one label deep, so `<svc>.home.keit
its own record. **`internal` services need NO public record** — PiHole resolves them to the internal its own record. **`internal` services need NO public record** — PiHole resolves them to the internal
Gateway VIP (split-horizon). ExternalDNS manages **`public`** services' records only. Gateway VIP (split-horizon). ExternalDNS manages **`public`** services' records only.
## Public target + in-cluster DDNS (2026-10-03)
Gateway-published records are **CNAMEs to `wan.home.keithjackson.dev`**, not the Gateway VIP:
```
plex.home.keithjackson.dev CNAME wan.home.keithjackson.dev <- external-dns (Gateway `target` annotation)
wan.home.keithjackson.dev A <current WAN IP> <- cloudflare-ddns (ddns.yaml), every 5m
```
- The `target` annotation is on the **shared Gateway** (`platform/gateway/gateway.yaml`), so it
applies to every route that publishes at all. `internal` routes (`controller: none`) still publish
nothing.
- `ddns.yaml` runs `favonia/cloudflare-ddns` in this namespace with the same `cloudflare-api-token`.
It detects the WAN IP through Cloudflare's trace endpoint, so the pod **must not** carry
`egress-class: vpn`.
- LAN and pods resolve `*.home.keithjackson.dev` to the Gateway VIP via PiHole and CoreDNS
(split-horizon) and never use the public path.
- **Nodes resolve through public DNS** (`node_baseline_dns_servers`), so from a node, the apiserver's
OIDC issuer `keycloak.home.keithjackson.dev` resolves to the WAN IP. kubectl SSO therefore relies on
the router hairpinning (NAT reflection) WAN:443 back to the Gateway.
Check: `dig +short @1.1.1.1 plex.home.keithjackson.dev` → `wan.home.keithjackson.dev.` then the WAN IP;
`kubectl -n external-dns logs deploy/cloudflare-ddns`.
## Secrets ## Secrets
Cloudflare API token referenced **by name** (`cloudflare-api-token`, shared with cert-manager), Cloudflare API token referenced **by name** (`cloudflare-api-token`, shared with cert-manager),
+87
View File
@@ -0,0 +1,87 @@
---
# In-cluster dynamic DNS for the home WAN (2026-10-03).
#
# Keeps ONE record, `wan.${BASE_DOMAIN}` (A, IPv4 only, not proxied), pointed at the home WAN's
# current public IP. Every public name external-dns publishes from the shared Gateway is a CNAME to
# it (platform/gateway/gateway.yaml `external-dns.alpha.kubernetes.io/target`), so a WAN IP change
# moves all of them through this one record, with no Git change and no external-dns involvement.
#
# OWNERSHIP SPLIT WITH EXTERNAL-DNS. This record carries no external-dns TXT registry entry, so
# external-dns (policy: sync, owner `prod`) never treats it as its own and never deletes it.
# Conversely this updater manages only the names in DOMAINS and never touches external-dns's records.
#
# IP DETECTION. Default `cloudflare.trace`: an HTTPS request to Cloudflare's trace endpoint, which
# reports the address the request arrived from. Correct here only because this pod is NOT in the
# `vpn` egress class — the CiliumEgressGatewayPolicy (platform/vpn-egress) selects pods by
# `homelab.keithjackson.dev/egress-class: vpn` alone, cluster-wide. Labelling this pod `vpn` would
# publish the VPN exit IP instead of the WAN IP.
#
# TOKEN. Reuses this namespace's `cloudflare-api-token` (same Zone:DNS:Edit token as external-dns
# and cert-manager) — no new secret.
#
# TIER NOTE. This lives in the gating `platform` Flux Kustomization (wait: true) next to
# external-dns. If it ever crashloops, `platform` goes not-Ready and apps stop reconciling (no
# outage). Kept here rather than in its own non-gating Kustomization to avoid a clusters/** change.
apiVersion: apps/v1
kind: Deployment
metadata:
name: cloudflare-ddns
namespace: external-dns
labels:
app.kubernetes.io/name: cloudflare-ddns
spec:
replicas: 1 # exactly one writer for the record
revisionHistoryLimit: 3
strategy:
type: Recreate # never two updaters at once
selector:
matchLabels:
app.kubernetes.io/name: cloudflare-ddns
template:
metadata:
labels:
app.kubernetes.io/name: cloudflare-ddns
spec:
automountServiceAccountToken: false
securityContext:
runAsNonRoot: true
runAsUser: 1000
runAsGroup: 1000
seccompProfile:
type: RuntimeDefault
containers:
- name: cloudflare-ddns
image: favonia/cloudflare-ddns:1.17.1
imagePullPolicy: IfNotPresent
env:
- name: CLOUDFLARE_API_TOKEN
valueFrom:
secretKeyRef:
name: cloudflare-api-token
key: api-token
- name: DOMAINS
value: "wan.${BASE_DOMAIN}"
- name: IP6_PROVIDER
value: "none" # IPv4 WAN only; leaves any AAAA alone
- name: PROXIED
value: "false" # DNS-only: Plex/Gitea/etc. terminate TLS on the Gateway
- name: UPDATE_CRON
value: "@every 5m"
- name: DELETE_ON_STOP
value: "false" # a pod restart must not blank the record every CNAME depends on
- name: RECORD_COMMENT
value: "managed by k3s cloudflare-ddns (platform/externaldns/ddns.yaml)"
- name: EMOJI
value: "false"
resources:
requests:
cpu: 5m
memory: 16Mi
limits:
memory: 64Mi
securityContext:
allowPrivilegeEscalation: false
readOnlyRootFilesystem: true
capabilities:
drop:
- ALL
+21 -30
View File
@@ -81,38 +81,29 @@ spec:
# what this instance can see or own; per-resource exclusion only ever REMOVES an object from # what this instance can see or own; per-resource exclusion only ever REMOVES an object from
# this instance's view, so it cannot make prod capable of deleting a record it does not own. # this instance's view, so it cannot make prod capable of deleting a record it does not own.
# --------------------------------------------------------------------------------------------- # ---------------------------------------------------------------------------------------------
# THE PUBLIC-TARGET GAP — STILL OPEN, AND NOT FIXABLE HERE ON v0.21.0 (operator decision) # THE PUBLIC TARGET — DECIDED 2026-10-03 (operator): every Gateway-published name goes public
# #
# The five `exposure: public` services (plex, gitea, seerr, keycloak, nextcloud) publish records # Until 2026-10-03 every gateway-sourced record answered with the Gateway VIP (192.168.2.20,
# that point at 192.168.2.20 — the Gateway VIP, an unroutable RFC1918 address — so they are not # RFC1918), so nothing published here was reachable from the internet. Two facts constrained the
# actually reachable from the internet either. Their records are LEFT EXACTLY AS THEY ARE by # fix, and both still hold:
# this change, for two independent reasons: # * `external-dns.alpha.kubernetes.io/target` is read in v0.21.0's gateway-httproute source ONLY
# from the GATEWAY (source/gateway.go: `overrides: annotations.TargetsFromTargetAnnotation(
# gw.Annotations)`) and from a ListenerSet listener — NEVER from an HTTPRoute. A target on the
# shared Gateway therefore moves EVERY gateway-sourced record at once.
# * The home WAN IP is residential and can change, so a literal IP in Git would rot.
# #
# 1. THE VALUE IS NOT ESTABLISHED. The one public IP this repo knows is 136.51.115.252 # The operator's answers: (a) yes, ALL of them — the five `exposure: public` apps AND the admin
# (clusters/prod/kustomization.yaml, where the zone's `*.keithjackson.dev` wildcard also # UIs (auth, crafty, grafana, headlamp, the apex), which sit behind Keycloak / oauth2-proxy;
# points). It belongs to the LEGACY non-k3s stack and currently serves a placeholder # (b) the address is kept current IN-CLUSTER. Implementation:
# certificate. Whether prod's public services belong behind it, behind a new forward, or # * platform/gateway/gateway.yaml sets `target: wan.${BASE_DOMAIN}` on the shared Gateway, so
# are not meant to be public at all is an operator decision. Breaking five services' DNS # each published name becomes a CNAME to that one hostname;
# on a guess is worse than leaving a known-wrong-but-stable state. # * platform/externaldns/ddns.yaml (favonia/cloudflare-ddns) keeps `wan.${BASE_DOMAIN}` an A
# 2. THE MECHANISM CANNOT BE SCOPED TO THEM. `external-dns.alpha.kubernetes.io/target` is a # record at the current WAN IP. That record has no external-dns TXT registry entry, so this
# real override, but in v0.21.0's gateway-httproute source it is read ONLY from the # instance never owns or garbage-collects it.
# GATEWAY (source/gateway.go: `overrides: annotations.TargetsFromTargetAnnotation( # Internal services are unchanged: their routes carry `controller: none` (above), which is
# gw.Annotations)`) and from a ListenerSet listener — NEVER from the HTTPRoute. So there is # checked BEFORE the target is read, so they still publish nothing. The `service` source (the L4
# no per-service target override while every public service shares the `shared` Gateway. # LoadBalancers crafty-mc, unifi) does not read the Gateway's annotation and still publishes its
# Annotating the Gateway would move EVERY gateway-sourced record, which after this change # LB VIP. Whether those should go public is a separate, still-open question.
# still includes auth, crafty, grafana, headlamp and the apex — i.e. it would publish a
# routable address for admin UIs. That is strictly worse than the status quo.
#
# SO THE DECISION THE OPERATOR OWNS IS TWO-PART, and no knob is added here until the first half
# is answered, because a knob that cannot take effect invites someone to set it and expect one:
# (a) WHAT address should the five public names answer with — 136.51.115.252 as-is, a new
# port-forward/WAN address, or nothing (drop `exposure: public` to `internal` instead)?
# (b) HOW should they be separated from the non-public names that share the Gateway? Options,
# roughly in ascending cost: a SECOND Gateway (or a ListenerSet) carrying the target
# annotation, with only the public services' routes attached; or publishing the five names
# from the `crd` source (DNSEndpoint objects the renderer emits for `public` services),
# which restores per-service targeting without a second Gateway.
# Only (b) is a manifest change; (a) is a fact about the home WAN that has to be checked.
# --------------------------------------------------------------------------------------------- # ---------------------------------------------------------------------------------------------
# CROSS-CLUSTER DNS OWNERSHIP. Read before changing either knob below. # CROSS-CLUSTER DNS OWNERSHIP. Read before changing either knob below.
# #
+2
View File
@@ -8,3 +8,5 @@ resources:
# SOPS-encrypted Cloudflare token (env CF_API_TOKEN) — SAME token as cert-manager, second copy in # SOPS-encrypted Cloudflare token (env CF_API_TOKEN) — SAME token as cert-manager, second copy in
# the external-dns namespace. Flux decrypts at reconcile. # the external-dns namespace. Flux decrypts at reconcile.
- cloudflare-api-token.sops.yaml - cloudflare-api-token.sops.yaml
# DDNS for `wan.${BASE_DOMAIN}` — the CNAME target every Gateway-published record points at.
- ddns.yaml
+17
View File
@@ -7,6 +7,23 @@ kind: Gateway
metadata: metadata:
name: shared name: shared
namespace: gateway namespace: gateway
annotations:
# PUBLIC DNS TARGET (2026-10-03, operator decision). Without this, external-dns publishes every
# route on this Gateway with the Gateway's OWN address (${GATEWAY_VIP}, RFC1918), which is
# unreachable from the internet. With it, every published `<svc>.${BASE_DOMAIN}` (and the apex)
# becomes a CNAME to `wan.${BASE_DOMAIN}`, an A record that platform/externaldns/ddns.yaml keeps
# pointed at the home WAN's current public IP. The WAN forwards 80/443 to ${GATEWAY_VIP}.
#
# Scope is EVERY route on this Gateway that publishes at all — the operator chose to make the
# admin UIs (auth, grafana, headlamp, crafty, apex) publicly resolvable alongside the five
# `exposure: public` apps. `internal` services stay unpublished via their
# `external-dns.alpha.kubernetes.io/controller: none` route annotation, which external-dns checks
# BEFORE it reads this target. external-dns v0.21.0 reads `target` from the Gateway only, never
# from an HTTPRoute — see platform/externaldns/helmrelease.yaml.
#
# LAN and in-cluster clients are unaffected: PiHole and CoreDNS answer ${BASE_DOMAIN} with
# ${GATEWAY_VIP} directly (split-horizon), so they never take this public path.
external-dns.alpha.kubernetes.io/target: "wan.${BASE_DOMAIN}"
spec: spec:
gatewayClassName: cilium gatewayClassName: cilium
listeners: listeners:
+12 -8
View File
@@ -153,14 +153,18 @@ Each affected runbook says so on its own page and gives the by-hand equivalent.
plex.tv/claim — so it is a timed sequence, scripted as `infra/plex/claim-ship.sh`: plex.tv/claim — so it is a timed sequence, scripted as `infra/plex/claim-ship.sh`:
token → `sops` → PR → gate → merge → **forced** `flux reconcile` → pod roll (~2m45s measured). token → `sops` → PR → gate → merge → **forced** `flux reconcile` → pod roll (~2m45s measured).
Includes why a changed Secret does not restart anything, and why an expired token is harmless. Includes why a changed Secret does not restart anything, and why an expired token is harmless.
- **`plex-quicksync`** — hardware transcoding on the host iGPU. GitOps puts `/dev/dri` in the pod - **`plex-quicksync`** — hardware transcoding on the host iGPU. **Confirmed working 2026-10-02**
(`hardware.gpu: intel-quicksync`); **a human still has to tick Settings → Transcoder → "Use hardware (VAAPI decode *and* encode, zero-copy). GitOps requests `gpu.intel.com/i915` on the pod
acceleration when available"**, and no environment variable can do it (the image supports no (`hardware.gpu: intel-quicksync`, satisfied by the `intel-gpu-plugin` DaemonSet — a `/dev/dri`
`PLEX_PREFERENCE*`, verified). The page names the real preference key (`HardwareAcceleratedCodecs`, hostPath was measured not to work: device-cgroup `EPERM`); **a human still has to tick Settings →
read out of the binary), says which widely-cited key **does not exist**, and is explicit that the Transcoder → "Use hardware acceleration when available"**, and no environment variable can do it
**only** proof is `Transcode (hw)` on the Plex dashboard — Plex renders no ServiceMonitor, so no (the image supports no `PLEX_PREFERENCE*`, verified). **The proof is `Plex Media Server.log`'s
alert could ever fire. Also: the device-cgroup failure to expect first and its device-plugin `final decoder: / final encoder:` line, not the Plex dashboard** — the dashboard showed nothing
fallback, and why a `:latest` pull can silently break it. while hardware transcoding was working, so its silence proves nothing; the page carries the
redacting grep (`X-Plex-Token` lives in that log), the WRONG log file to avoid, and two more
documented false leads (an empty `/proc/*/fd` scan, and a missing `HardwareAcceleratedCodecs` key).
Plex renders no ServiceMonitor, so no alert could ever fire. Also: **`Pending` stalls the whole app
tier** and its one-field escape hatch, and why a `:latest` pull can silently break it.
- **`oauth2-proxy-session`** — a gated UI loads but its saves quietly do nothing, and you are never - **`oauth2-proxy-session`** — a gated UI loads but its saves quietly do nothing, and you are never
re-prompted to log in. Tells the three stacked auth layers apart from the sidecar's own access log re-prompted to log in. Tells the three stacked auth layers apart from the sidecar's own access log
(the four lines that matter, including the upstream `-` that means the proxy answered a request the (the four lines that matter, including the upstream `-` that means the proxy answered a request the
+194 -55
View File
@@ -1,5 +1,10 @@
# plex-quicksync — making Plex actually use Intel Quick Sync, and proving it did # plex-quicksync — making Plex actually use Intel Quick Sync, and proving it did
**Status: hardware transcoding is CONFIRMED WORKING on prod as of 2026-10-02** — VAAPI for both
decode *and* encode, zero-copy, measured in Plex's own server log (see "How to verify"). The manual
toggle has been ticked. This page is therefore now mostly a **verification and regression**
procedure, and its old verification section was **wrong** — see the correction at the top of
"How to verify".
**Alert:** none, and none is possible — see "How to verify" below. This is an **operator procedure**, **Alert:** none, and none is possible — see "How to verify" below. This is an **operator procedure**,
not an incident page. It is indexed here because the feature it completes is **inert until a human not an incident page. It is indexed here because the feature it completes is **inert until a human
clicks one button**, and a switched-off feature that looks shipped is exactly what this page exists clicks one button**, and a switched-off feature that looks shipped is exactly what this page exists
@@ -33,7 +38,7 @@ is in git**:
| Half | Who does it | State | | Half | Who does it | State |
|---|---|---| |---|---|---|
| The render device is inside the container **and openable** | **GitOps.** `hardware.gpu: intel-quicksync` in `catalog/plex.yaml` renders `resources.limits: {gpu.intel.com/i915: 1}` on the app container. The `intel-gpu-plugin` DaemonSet (`platform/intel-gpu-plugin/`) injects the device **and the matching device-cgroup allow rule**. Flux applies it. | Done by merging that change. | | The render device is inside the container **and openable** | **GitOps.** `hardware.gpu: intel-quicksync` in `catalog/plex.yaml` renders `resources.limits: {gpu.intel.com/i915: 1}` on the app container. The `intel-gpu-plugin` DaemonSet (`platform/intel-gpu-plugin/`) injects the device **and the matching device-cgroup allow rule**. Flux applies it. | Done by merging that change. |
| Plex is *told* to use it | **The operator, by hand, in the Plex web UI.** | **NOT done.** `HardwareAcceleratedCodecs` was **absent** from `Preferences.xml` when this page was written — the toggle has never been on. | | Plex is *told* to use it | **The operator, by hand, in the Plex web UI.** | **Done, 2026-10-02**, and confirmed from the **log** rather than from a preference key. `HardwareAcceleratedCodecs` is **still absent** from `Preferences.xml` with hardware transcoding working, so its absence proves nothing — see first-command #4. |
**There is no GitOps path to the second half, and that is verified rather than assumed.** A bounded **There is no GitOps path to the second half, and that is verified rather than assumed.** A bounded
grep across the running image's entire init surface — `/etc/cont-init.d`, `/etc/services.d`, grep across the running image's entire init surface — `/etc/cont-init.d`, `/etc/services.d`,
@@ -79,8 +84,8 @@ also the only thing that produces the cgroup allow rule. There is no graceful-de
The one improvement is that the loss is no longer silent. The one improvement is that the loss is no longer silent.
What this does **not** do, so nobody reads more into a green gate than is there: it does not enable What this does **not** do, so nobody reads more into a green gate than is there: it does not enable
hardware transcoding (that is the manual toggle below), a green gate only proves the **manifest hardware transcoding (that is the manual toggle below — done 2026-10-02), a green gate only proves
renders**, and it writes no `nodeSelector` — the resource itself constrains Plex to nodes the plugin the **manifest renders**, and it writes no `nodeSelector` — the resource itself constrains Plex to nodes the plugin
advertises, which is the scheduler's doing and not a selector in this repo. advertises, which is the scheduler's doing and not a selector in this repo.
## Running the commands in this runbook ## Running the commands in this runbook
@@ -172,17 +177,28 @@ cgroup rule that uid 0 could not buy its way past either. `RW-OPEN-DENIED` with
visible is the **device-cgroup** failure — i.e. the plugin's allow rule did not arrive; see "Likely visible is the **device-cgroup** failure — i.e. the plugin's allow rule did not arrive; see "Likely
causes" #2. causes" #2.
**4. Is the toggle on?** Named key only — never the whole file: **4. Is the toggle on?** **You cannot answer this from `Preferences.xml` alone.** That mistake is on
this page's record: it told readers to treat a missing `HardwareAcceleratedCodecs` as "never
enabled", and on 2026-10-02 that key was **absent from all 27 attributes** while hardware
transcoding was demonstrably working. Named keys only — never the whole file, it holds
`PlexOnlineToken`:
``` ```
infra/devcontainer/dev.sh run bash -c \ infra/devcontainer/dev.sh run bash -c \
'kubectl --context k3s-prod -n plex exec deploy/plex -- \ 'kubectl --context k3s-prod -n plex exec deploy/plex -- \
grep -o "HardwareAcceleratedCodecs=\"[01]\"" \ grep -o -e "HardwareAcceleratedCodecs=\"[01]\"" -e "HardwareDevicePath=\"[^\"]*\"" \
"/config/Library/Application Support/Plex Media Server/Preferences.xml" || echo ABSENT' "/config/Library/Application Support/Plex Media Server/Preferences.xml" || echo NEITHER-KEY'
``` ```
`ABSENT` ⇒ never enabled (the state this page was written in). `="0"` ⇒ explicitly off. `="1"` ⇒ on, | Reading | What it actually means |
and the remaining question is whether it *works* — go to "How to verify". |---|---|
| `HardwareDevicePath="…"` **present** | **Positive signal.** Plex writes this when hardware acceleration is configured; it was present on 2026-10-02 alongside a working VAAPI pipeline. |
| `HardwareAcceleratedCodecs` **absent** | **Nothing. Neither on nor off.** Measured absent with the feature working (2026-10-02). Do not diagnose from it, and do not write it into the file to "fix" it. |
| `HardwareAcceleratedCodecs="0"` | explicitly **off** — the only conclusive reading, and only in the negative. |
| `HardwareAcceleratedCodecs="1"` | on. |
**The log settles it, this file does not.** Go to "How to verify"; the `hardware transcoding:
enabled` and `final decoder/final encoder` lines are the verdict.
## The one manual step ## The one manual step
@@ -191,8 +207,11 @@ Plex web UI → **Settings → Transcoder → "Use hardware acceleration when av
The underlying preference key is **`HardwareAcceleratedCodecs`**. That name was confirmed by The underlying preference key is **`HardwareAcceleratedCodecs`**. That name was confirmed by
extracting strings from the 23 MB `Plex Media Server` binary in the running container — **not** from extracting strings from the 23 MB `Plex Media Server` binary in the running container — **not** from
recall and not from a forum post. Real neighbouring keys from the same binary, so you can recognise recall and not from a forum post. **But do not expect to see it in `Preferences.xml` after ticking
them and not invent them: the box:** on 2026-10-02, with the toggle on and hardware transcoding working, the key was absent and
`HardwareDevicePath` was what had been written. The key exists in the binary; Plex does not
necessarily persist it. Real neighbouring keys from the same binary, so you can recognise them and
not invent them:
| Key | What it is | | Key | What it is |
|---|---| |---|---|
@@ -209,42 +228,121 @@ binary. Recorded explicitly so nobody spends an evening hunting for it or, worse
Editing `Preferences.xml` by hand is **not** the procedure. It is app state on the replicated Longhorn Editing `Preferences.xml` by hand is **not** the procedure. It is app state on the replicated Longhorn
tier, it is in no git commit, and the UI writes the key correctly. Use the UI. tier, it is in no git commit, and the UI writes the key correctly. Use the UI.
## How to verify — and why there is no alert ## How to verify — the log, not the dashboard
Start a playback that **forces a transcode** (a client that cannot direct-play the source, or pick a **Correction, 2026-10-02.** Until today this page said the Plex dashboard showing `Transcode (hw)`
lower quality explicitly), then read Plex's own **Dashboard → Activity**: was "the *only* proof available, and nothing else will ever tell you". **That was false and it cost
the operator real time:** hardware transcoding was fully working — VAAPI decode *and* encode, with
zero-copy — while **Dashboard → Activity showed nothing of the sort**. A check that is silent while
the feature works does not just fail to prove anything; it sends someone hunting a fault that does
not exist. The authoritative check is **Plex's own server log**.
- **`Transcode (hw)`** on the session ⇒ hardware transcoding. **This is the proof.** ### The primary check — run this one
- plain **`Transcode`** ⇒ software. The feature is not working, whatever the manifest says.
**That dashboard is the *only* proof available, and nothing else will ever tell you.** ```
`catalog/plex.yaml` declares no `metricsEndpoint`, so Plex renders **no ServiceMonitor at all** — ./infra/devcontainer/dev.sh run bash -c 'kubectl --context k3s-prod -n plex exec deploy/plex -- \
there is no scrape, no transcode-mode metric, and therefore no alert that could fire. Do not open work grep -aiE "hardware transcoding: (final|using)" \
to "alert on software-transcode fallback": with no metric behind it such a rule would be permanently "/config/Library/Application Support/Plex Media Server/Logs/Plex Media Server.log" \
inert, and this repo has already been burned at scale by rules that evaluated against nothing while | sed -E "s/(X-Plex-Token|token)=[^&[:space:]]*/\1=REDACTED/g" | tail -5'
looking like coverage (`runbooks/README.md`, "Alerts you should not trust the silence of"). If that ```
gap is ever worth closing, the honest order is a real exporter first and a rule second.
Corroborating, not a substitute — the server log on the config PVC: | Line | Verdict |
|---|---|
| `hardware transcoding: final decoder: vaapi, final encoder: vaapi` | **PASS.** Hardware in **both** directions. This is the pass condition. |
| `hardware transcoding: using zero-copy transcoding` | Best case — frames never round-trip through the CPU. Observed on prod 2026-10-02. |
| `hardware transcoding: final decoder: , final encoder: ` (both empty) | It **fell back to software** for that session. |
| no matching line at all | No transcode has been attempted since the log rolled — force one (below), then look again. Absence is not a failure. |
The 2026-10-02 reading on prod, in full, for the shape to recognise:
```
Codecs: hardware transcoding: testing API vaapi for device '/dev/dri/renderD128'
(Intel CoffeeLake-S GT2 [UHD Graphics 630])
hardware transcoding: using hardware decode accelerator vaapi
hardware transcoding: zero-copy support present
hardware transcoding: using zero-copy transcoding
hardware transcoding: final decoder: vaapi, final encoder: vaapi
```
To make a line appear, start a playback that **forces a transcode**: a client that cannot
direct-play the source, or an explicitly lower quality. Direct Play / Direct Stream never reaches
the transcoder and logs nothing.
### Three things to get right about that command
1. **Always keep the `sed`.** `Plex Media Server.log` carries API URLs containing
**`X-Plex-Token=…`**, a live plex.tv credential. Any output that might land in a ticket, a
transcript or a chat window must be redacted — CLAUDE.md §6, and a credential has already been
leaked into a transcript in this repo exactly this way. The redacting form above is the form to
copy; do not "simplify" the pipe out of it.
2. **`Plex Transcoder Statistics.log` is the WRONG FILE.** The name is irresistible and someone will
reach for it. It holds XML `<Variant .../>` session records — **not** ffmpeg/VAAPI output. There
is no decoder/encoder verdict anywhere in it. The file you want is `Plex Media Server.log`.
3. `grep -a` is deliberate: the log carries occasional non-UTF-8 bytes, and without `-a` GNU grep
reports "binary file matches" and prints nothing — which reads exactly like "no hardware
transcoding".
### Secondary and unreliable: the Plex dashboard
**Dashboard → Activity** *may* label a transcoding session `Transcode (hw)`. If it does, it agrees
with the log and you are done. **If it does not, that proves nothing at all** — measured 2026-10-02:
hardware transcoding active and zero-copy, dashboard silent. Never conclude "software transcoding"
from the dashboard and never open an investigation on its say-so. Kept here only because it is the
fastest glance available; it is a convenience, **not evidence**.
### Process-level, while a transcode is in flight: the transcoder's argv
This shows Plex *requesting* hardware, as distinct from reporting it afterwards. Get a shell in the
pod (if `-it` has no TTY under `dev.sh run`, wrap each line in `sh -c "…"` instead):
``` ```
infra/devcontainer/dev.sh run bash -c \ infra/devcontainer/dev.sh run bash -c \
'kubectl --context k3s-prod -n plex exec deploy/plex -- \ 'kubectl --context k3s-prod -n plex exec -it deploy/plex -- sh'
sh -c "grep -i -m20 -e hardware -e vaapi -e hwdevice \
\"/config/Library/Application Support/Plex Media Server/Logs/Plex Media Server.log\""'
``` ```
Treat those strings as advisory: they are Plex's, not this repo's, and they move between versions. then, inside the pod:
Absence of a match is **not** evidence of software transcoding; a VA-API device open is good evidence
of hardware. The dashboard remains the verdict. ```
ps -eo pid,user,comm | grep -i transcoder
tr '\0' ' ' < /proc/<transcoder-pid>/cmdline | grep -oE '(-hwaccel[a-z_]*|vaapi|renderD[0-9]+)'
```
`-hwaccel`, `-hwaccel_device`, `vaapi`, `renderD128` present ⇒ Plex is asking for hardware. Keep the
`grep -oE`: the raw argv contains media paths and session identifiers you do not want in a
transcript. This only works while a session is actually transcoding.
### Documented false lead: scanning `/proc/*/fd` for a holder of `renderD128`
**It returns nothing even when hardware transcoding is working.** Measured 2026-10-02: a
`/proc/*/fd` sweep inside the pod found **no** process holding `/dev/dri/renderD128`, while the log
showed `final decoder: vaapi, final encoder: vaapi` for sessions either side of the scan. Transcode
sessions are **short** and the scan landed in a gap between two of them. An empty fd scan is a
**timing artefact, not a finding** — do not report it as evidence of software transcoding, and do
not escalate on it. Use the argv check above (which has the same timing constraint but tells you
something when it does catch a session), or just read the log, which is retrospective and therefore
does not care about timing.
### Why there is no alert — this half was always right
`catalog/plex.yaml` declares no `metricsEndpoint`, so Plex renders **no ServiceMonitor at all** —
there is no scrape, no transcode-mode metric, and therefore no alert that could fire. Do not open
work to "alert on software-transcode fallback": with no metric behind it such a rule would be
permanently inert, and this repo has already been burned at scale by rules that evaluated against
nothing while looking like coverage (`runbooks/README.md`, "Alerts you should not trust the silence
of"). If that gap is ever worth closing, the honest order is a real exporter first and a rule
second.
## Likely causes, most likely first ## Likely causes, most likely first
When the dashboard still says plain `Transcode`: When the **log** says it fell back to software — `final decoder: , final encoder: ` with both
fields empty. (Not when the dashboard is quiet: the dashboard's silence means nothing, see "How to
verify".)
1. **The toggle is off.** Overwhelmingly the most likely answer, and the reason this page exists. 1. **The toggle is off.** Historically the most likely answer and the reason this page exists. It was
First-command #4 returns `ABSENT` or `="0"`. Remedy: the manual step above. Check this **before** ticked on 2026-10-02 and should stay ticked, but a `/config` restore or a stray UI save can unset
investigating anything technical. it. Remedy: the manual step above. **Do not diagnose this from a missing
`HardwareAcceleratedCodecs`** — see first-command #4; only `="0"` is conclusive, and the log line
`hardware transcoding: enabled` is the real signal that the toggle took.
2. **The device cannot be `open()`ed — the plugin's cgroup allow rule did not arrive.** Symptom: 2. **The device cannot be `open()`ed — the plugin's cgroup allow rule did not arrive.** Symptom:
first-command #3 shows `renderD128` present and correctly owned, and the open returns first-command #3 shows `renderD128` present and correctly owned, and the open returns
@@ -276,13 +374,27 @@ When the dashboard still says plain `Transcode`:
4. **The image changed under you.** See "The floating-image caveat". A `:latest` pull can remove the 4. **The image changed under you.** See "The floating-image caveat". A `:latest` pull can remove the
mechanism this feature leans on with no commit in this repo. mechanism this feature leans on with no commit in this repo.
5. **The session was never transcoding.** Direct Play / Direct Stream never touches the transcoder, so 5. **The session was never transcoding.** Direct Play / Direct Stream never reaches the transcoder,
`Transcode (hw)` cannot appear. Confirm the session actually says `Transcode` before treating it as so no `hardware transcoding:` line is written for it at all. An *absent* line is this, not a
a hardware failure. failure — confirm a transcode actually happened before treating anything as a hardware fault.
6. **The source needs a codec Quick Sync on this generation cannot handle** — e.g. AV1 decode, which 6. **The *source* codec may be one this iGPU cannot decode — HYPOTHESIS, not a confirmed
Coffee Lake's UHD 630 has no engine for. Plex falls back to software *per stream*. Symptom: some diagnosis.** The symptom that points here is fallback on **particular titles** while other
sessions show `(hw)` and others do not. Not a fault. sessions are hardware. Measured on prod 2026-10-02, *between* two fully hardware sessions, one
session logged:
```
hardware transcoding: enabled, but no hardware decode accelerator found
hardware transcoding: final decoder: , final encoder:
```
The platform was demonstrably working either side of it, so the likely explanation is the **file**,
not the cluster: UHD 630's media engine decodes H.264, HEVC 8-bit and 10-bit, and VP9 — but **not
AV1**, and not 10-bit 4:2:2 HEVC. **This was NOT verified against that particular title.** It is
inferred from the hardware's capability set and is written here as the lead to check first, not as
a finding. So: fallback on *all* files is a platform problem (causes 1-4); fallback on *some*
files, check the source codec before suspecting the device, and expect occasional legitimate
per-title fallbacks to be normal rather than a fault.
## Plex will not schedule ## Plex will not schedule
@@ -360,19 +472,30 @@ infra/devcontainer/dev.sh run bash -c \
``` ```
`45-plex-hw-transcode-and-connected-tuner` still present ⇒ the group mechanism is still the one `45-plex-hw-transcode-and-connected-tuner` still present ⇒ the group mechanism is still the one
described here. Gone or renamed ⇒ stop and re-measure. In particular the "no `supplementalGroups` described here: the hook reads the injected device's **own** ownership, which under the device plugin
needed" conclusion in `catalog/plex.yaml` and `schemas/renderer-contract.md` is only true while that is `root:root`, so it resolves GID `0` (see "When to escalate or stop"). Gone or renamed ⇒ stop and
hook exists. re-measure. In particular the "no `supplementalGroups` needed" conclusion in `catalog/plex.yaml` and
`schemas/renderer-contract.md` is only true while that hook exists.
## When to escalate or stop ## When to escalate or stop
- **Do not add `supplementalGroups` or a `podSecurityContext` to `catalog/plex.yaml`.** It would be - **Do not add `supplementalGroups` or a `podSecurityContext` to `catalog/plex.yaml`.** It would be
**inert**, and it would mislead the next person. Measured in-container 2026-09-30: the image's **inert**, and it would mislead the next person. The image's `cont-init.d` hook stats each
`cont-init.d` hook stats each `/dev/dri` char device and `usermod -a -G`s the `plex` user into its `/dev/dri` char device and `usermod -a -G`s the `plex` user into **that device's** group, inside
group *inside* the container, and the service then execs via `s6-setuidgid plex`, which **replaces** the container; the service then execs via `s6-setuidgid plex`, which **rebuilds** the process group
the process group list from `/etc/group` rather than appending — `Plex Media Server` runs with list from `/etc/group` rather than appending to it. Anything Kubernetes supplies is therefore
`Groups: 100 1000`, root's gid `0` (which PID 1 does hold) gone. Anything Kubernetes supplies is
discarded before Plex starts. `render.py --selftest` asserts that absence deliberately. discarded before Plex starts. `render.py --selftest` asserts that absence deliberately.
- **GID `992` is a hostPath-era number — do not expect it, and do not read the root group as a
defect.** Under the device plugin the injected `/dev/dri/renderD128` arrives **`root:root`**, so
the hook resolves GID **`0`** and adds `plex` to the **root group**. Measured 2026-10-02:
`Plex Media Server` runs with `Groups: 0 100 1000`, and `id plex` reports
`groups=1000(plex),0(root),100(users)`. Under the old hostPath the device was `root:render`
(GID 992 on these nodes) and the reading was `Groups: 44 100 992 1000`. **992 is now irrelevant**:
if any page, comment or older handoff tells you to expect it, that text is stale and the system
you are looking at is working. The root-group membership is an inherent property of the plugin's
`DeviceSpec` — it injects the host device with its host ownership — **not** a defect, and **not** a
reason to reintroduce `supplementalGroups`, which would still be a no-op for the reason in the
bullet above.
- **Do not reach for `privileged: true`.** Kyverno `restrict-host-namespaces` is Enforce and will - **Do not reach for `privileged: true`.** Kyverno `restrict-host-namespaces` is Enforce and will
reject it — and it would not help: `uid 0` failed the same `open()` in the 2026-09-30 measurement, reject it — and it would not help: `uid 0` failed the same `open()` in the 2026-09-30 measurement,
because root does not bypass the cgroup device gate. because root does not bypass the cgroup device gate.
@@ -390,7 +513,8 @@ hook exists.
watch state (`policy: daily-offcluster`). The transcode toggle is one preference, not a reason to watch state (`policy: daily-offcluster`). The transcode toggle is one preference, not a reason to
lose the DB. lose the DB.
- **Stop and get the operator** if the device cannot be opened from the pod as uid 1000 (cause #2 - **Stop and get the operator** if the device cannot be opened from the pod as uid 1000 (cause #2
confirmed) *under the current mechanism*. The next step is a platform change in confirmed) *under the current mechanism* — note that this open **passed** on 2026-10-02
(`RW-OPEN-OK` as uid 1000 via `s6-setuidgid plex`), so a failure now is a regression. The next step is a platform change in
`platform/intel-gpu-plugin/`, with its own PR, not more poking at this workload. `platform/intel-gpu-plugin/`, with its own PR, not more poking at this workload.
## Known gaps, deliberately not fixed here ## Known gaps, deliberately not fixed here
@@ -413,10 +537,25 @@ Recorded so they are findable, and so nobody assumes they were overlooked:
--- ---
Source of truth: `runbooks/plex-quicksync.md`. Index: `/runbooks/` Source of truth: `runbooks/plex-quicksync.md`. Index: `/runbooks/`
The node measurements (all three prod nodes) and the in-container image measurements cited here were
taken **2026-09-30** against `plexinc/pms-docker` digest `sha256:e0ab27395614…` **Hardware transcoding is CONFIRMED WORKING on prod, measured 2026-10-02.** From
(`plexmediaserver 1.43.4.10903`). The `EPERM` open measurements, the `Groups: 44 100 992 1000` `Plex Media Server.log` in the running pod: API `vaapi` on `/dev/dri/renderD128`
reading and the `gpu.intel.com/i915: 1` allocatable/DaemonSet readings were taken **2026-10-01**. (`Intel CoffeeLake-S GT2 [UHD Graphics 630]`), `using hardware decode accelerator vaapi`,
Hardware transcoding has **still not been observed working**: the open test has not been re-run under `zero-copy support present`, `using zero-copy transcoding`, and
the device-plugin mechanism (it cannot be, until that merges and Flux reconciles), and the Plex-side `final decoder: vaapi, final encoder: vaapi`. Also measured in the same pod: `RW-OPEN-OK` opening
toggle is still unset. `/dev/dri/renderD128` as uid 1000 via `s6-setuidgid plex`; the pod spec carrying
`{"limits":{"gpu.intel.com/i915":"1"},"requests":{"gpu.intel.com/i915":"1"}}`; `Groups: 0 100 1000`
and `id plex` → `groups=1000(plex),0(root),100(users)`; and `HardwareDevicePath` present in
`Preferences.xml` while `HardwareAcceleratedCodecs` was absent from all 27 attributes.
Earlier readings, kept for provenance and **superseded** where they conflict: the node measurements
(all three prod nodes) and the in-container image measurements taken **2026-09-30** against
`plexinc/pms-docker` digest `sha256:e0ab27395614…` (`plexmediaserver 1.43.4.10903`); the hostPath
`EPERM` open results and the `Groups: 44 100 992 1000` / GID-992 group reading, **2026-10-01, under
the hostPath mechanism that no longer exists**; and the `gpu.intel.com/i915: 1` allocatable and
`intel-gpu-plugin` DaemonSet readings, **2026-10-01**.
What this page still does **not** establish: that any particular title's software fallback was caused
by its source codec (cause 6 is an unverified hypothesis), and that Plex's dashboard *ever* labels a
session `Transcode (hw)` on this deployment — it has not been observed doing so, which is exactly why
the log is now the primary check.
+148
View File
@@ -0,0 +1,148 @@
# plex-remote-access — getting Plex reachable from outside the LAN, and proving it
**Status: the in-cluster half is shipped; the last mile is TWO MANUAL STEPS and remote access does
NOT work until both are done.** Neither can live in this repo.
**Alert:** none, and none is possible from in-cluster signals — see "Why no alert" below. This is an
**operator procedure**, not an incident page.
**Files:** `apps/wave-0/plex-remote.yaml` (the tcp/32400 LoadBalancer + its CiliumNetworkPolicy),
`clusters/base/cluster-vars.yaml` + `clusters/prod/kustomization.yaml` (`PLEX_L4_VIP`),
`catalog/render.py` (the `EXTRA_UNITS` entry that places the unit), `catalog/plex.yaml` (Plex's own
env — note `ADVERTISE_IP` is deliberately NOT set; see "Why not the Gateway URL").
**Related:** `runbooks/plex-quicksync.md` and `runbooks/plex-claim.md` — the other two Plex
procedures with a manual last mile.
## What was actually broken (measured 2026-10-03)
Plex was serving correctly and was reachable on the LAN. Two independent things stopped remote
clients:
1. **Plex advertised no remote connection at all.** In the live `Preferences.xml`:
`customConnections` **ABSENT**, `ManualPortMappingMode` **ABSENT**, while
`PublishServerOnPlexOnlineKey="1"`. The server was trying to publish itself to plex.tv and had
nothing reachable to publish. Plex's automatic path (UPnP/NAT-PMP) cannot work here: the process
lives in a pod on the Cilium overlay (`10.0.2.136`), it cannot speak UPnP to the SOHO router, and
a mapping to the pod IP would be meaningless if it could.
2. **Nothing from the WAN reached the cluster.** `136.51.115.252:32400` → connection refused.
`136.51.115.252:443` → a **self-signed router certificate** (`C=ZZ, CN=%D`), not the Gateway's
Let's Encrypt wildcard.
The Service was `ClusterIP` only, so port 32400 had no path off-cluster by any route.
**Caveat on that second measurement, because it is easy to over-read:** it was taken from *inside*
the LAN, so strictly it proves there is no NAT hairpin (reflection). It does not prove outside-in
failure. But a router certificate answering 443 means the router's own management UI is bound to the
WAN port, and that *would* shadow a port-forward for genuine outside traffic too. **Verify from a
real outside vantage point** (phone on cellular, or an external port checker) before concluding
either way — this repo has no such vantage point and must not pretend otherwise.
## Step 1 — forward WAN tcp/32400 on the router (operator, off-repo)
WAN tcp/32400 -> 192.168.2.24 (${PLEX_L4_VIP}) port 32400
`192.168.2.24` is a pinned Cilium LB VIP, ARP-announced on the flat LAN by the existing
`CiliumL2AnnouncementPolicy default-l2`. It is **pinned on purpose**: this address is typed into the
router by hand, so it must never move on a reschedule.
While in the router, **check what else is bound to the WAN interface.** If remote management is
listening on 443 (see the certificate measurement above), move it or disable it — otherwise the
Gateway's 80/443 forward is shadowed and the Plex *web UI* over the internet stays broken even
though remote *streaming* works. These are two separate paths and they fail independently.
Confirm the VIP is actually answering on the LAN first, so a failure later is unambiguous:
./infra/devcontainer/dev.sh run bash -c \
'kubectl --context k3s-prod -n plex get svc plex-l4-tcp -o wide'
`EXTERNAL-IP` must read `192.168.2.24`. If it is `<pending>`, LB-IPAM could not assign — the address
is outside the pool or already taken; see `clusters/prod/kustomization.yaml` for the pool accounting.
**`192.168.2.24` was never ARP-probed off-cluster.** Only the in-cluster pool accounting was checked
(IPsTotal 11 / IPsUsed 4 / IPsAvailable 7 on 2026-10-03). If the VIP behaves oddly, probe it from a
LAN host — `arping 192.168.2.24` — the way `.23` was probed before it was claimed.
## Step 2 — tick "manually specify public port" in Plex (operator, UI only)
**There is no GitOps path to this and no environment variable for it.** Measured in the running
image on 2026-10-03: a grep of the entire init surface (`/etc/cont-init.d`, `/plex-common.sh`,
`/usr/local/bin`) for `ManualPortMapping` and `PLEX_PREFERENCE` returned **NONE**. The image writes
only six preferences, and this is not one of them. It is the same class of manual last mile as the
`HardwareAcceleratedCodecs` toggle in `runbooks/plex-quicksync.md`.
In the Plex web UI (`https://plex.home.keithjackson.dev`, on the LAN):
**Settings → Remote Access**
- Ensure **Enable Remote Access** is on. (`PublishServerOnPlexOnlineKey` was already `1`.)
- Tick **Manually specify public port** and set it to **32400**.
- **Apply**, then let the panel settle. It should report *"Fully accessible outside your network"*.
Without this tick Plex waits for a NAT mapping it can never obtain and publishes no remote
connection, so the port-forward in step 1 sits there unused.
## How to verify
Do these in order; each one isolates a different half.
**1. The port is open from outside.** From a phone on cellular, or any off-LAN host:
curl -sk -o /dev/null -w '%{http_code}\n' https://136.51.115.252:32400/identity
`200` means the forward and the policy are both good. A hang or refusal means step 1.
**2. Plex itself believes it is reachable.** Settings → Remote Access must say *"Fully accessible
outside your network"*. If it says *"not available outside your network"* while test 1 passes, step 2
was not applied.
**3. plex.tv is handing out a remote connection.** The decisive test, because it is what clients
actually consume: sign in to [app.plex.tv](https://app.plex.tv) from an off-LAN network and confirm
the server appears and plays. A client finds this server through plex.tv's connection list, never
through DNS.
**4. The policy is admitting the traffic.** If test 1 fails *after* the forward is confirmed, the
CiliumNetworkPolicy is the next suspect:
./infra/devcontainer/dev.sh run bash -c \
'kubectl --context k3s-prod -n plex get cnp plex-allow-remote-32400'
See `runbooks/denied-flows.md` for reading actual drops.
## Why no alert
Every in-cluster signal is green whether or not remote access works. The Service has endpoints, the
pod is `Running`, the policy is applied, and `plex-down` watches
`kube_deployment_status_replicas_available` — none of which can see a router with a missing
port-forward or an unticked checkbox. An alert would need an off-LAN prober, which this cluster does
not have. **Test 3 above is the only honest check, and it is manual.**
## Why not the Gateway URL (`ADVERTISE_IP`)
The alternative was to leave Plex on `ClusterIP` and set
`ADVERTISE_IP: https://plex.home.keithjackson.dev:443`, which writes Plex's `customConnections`
preference and would have put the server on plex.tv's list via the existing L7 Gateway — no new WAN
hole. That mechanism was verified to work on an already-claimed server (the `ADVERTISE_IP` block at
line 126 of the image's `40-plex-first-run` sits **outside** the claim guard, and `/.firstRunComplete`
lives on the overlay FS, not the `/config` PVC, so it re-runs every pod start), and the Gateway path
itself was measured serving Plex correctly: `HTTP 200`, `claimed="1"`, with `401` on every protected
endpoint.
**The operator chose the native path anyway (2026-10-03), and the reasons are real:** Plex terminates
its own TLS with its `*.plex.direct` certificate, and video streams bypass the Envoy L7 hop instead
of being proxied through it. The cost is a new unfiltered WAN port — acceptable because Plex
authenticates every caller itself. `ADVERTISE_IP` therefore stays unset in `catalog/plex.yaml`, and
the deferral note there is still accurate.
## Known wart: remote clients are classified as LAN
`apps/wave-0/plex-remote.yaml` uses `externalTrafficPolicy: Cluster`, which SNATs the client to the
ingress node's address (`192.168.2.1x`). That falls inside the `192.168.0.0/16` entry of
`ALLOWED_NETWORKS`, so **Plex treats every remote stream as local.** Measured on the Gateway path,
which SNATs the same way: Plex logged `[10.0.2.214:36040 (Allowed Network (WAN))]`.
This is a **metering** effect, not a security one — authorization is unchanged, as the 401s above
show — but Plex's remote-quality and bandwidth limits will not bind on these streams.
`Local` would preserve the client IP and fix it. **Do not switch to it.** Cilium's L2 announcer
elects one lease holder per Service and does *not* follow the backend pod, so the VIP can be
announced by a node with no Plex pod, black-holing the port while everything reports healthy. That
exact change cost this LAN an 8-day Minecraft outage in September 2026 — the full write-up is at the
top of `platform/crafty/service-l4.yaml`. Plex is a single-replica `Recreate` Deployment, so the
node mismatch is the normal case here, not a rare one.
+35
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@@ -161,6 +161,41 @@ platform must render, and cites the requirement each mapping satisfies. Changing
- **Requirements:** **R-STATE-01** (rebuild survival), **R-STATE-02** (Longhorn replication), - **Requirements:** **R-STATE-01** (rebuild survival), **R-STATE-02** (Longhorn replication),
**R-STATE-04** (bulk tier). (docs/04) **R-STATE-04** (bulk tier). (docs/04)
### `availability` (`replicas`) — workload kind, per-replica volumes, spreading, budget
**Schema 1.10.0.** Availability INTENT. It names no Kubernetes object, no topology key and no
budget — exactly like `hardware.gpu`, and for the same reason: the mechanism below should be
replaceable without a catalog edit.
- **Absent, or `replicas: 1`** → a **Deployment**, standalone PVC(s), `strategy: Recreate` when there
is storage, no PodDisruptionBudget. Byte-identical to pre-1.10.0 output, so every existing app is
untouched.
- **`replicas: N > 1`** → all of the following, together:
| Rendered | Why |
|---|---|
| **StatefulSet** instead of Deployment | A longhorn PVC is **ReadWriteOnce**. One RWO claim cannot attach on two nodes, so a multi-replica Deployment does not degrade — the second pod never schedules. |
| longhorn storage becomes **`volumeClaimTemplates`** | Gives each replica its own claim (`<vol>-<svc>-<ordinal>`, e.g. `config-pihole-0`). The template's `metadata.name` **must** equal the pod volume name the container mounts. The standalone PVC is then **not** emitted — it would be an orphan nothing mounts. |
| `bulk` storage stays a **standalone PVC** | A bulk entry is a static, pre-bound NFS PV over data that already exists outside the cluster and is shared read-only. Per-replica copies are neither possible nor wanted. |
| **required** `podAntiAffinity` on `kubernetes.io/hostname` | `preferred` would let every replica land on one node and deliver none of the intended node-failure tolerance, while every object still reported healthy. |
| `podManagementPolicy: Parallel` | `OrderedReady` serialises first-boot work across replicas; `apps-wave-0` has `timeout: 5m`. There is no ordering requirement between replicas to protect. |
| **PodDisruptionBudget**, `minAvailable: 1` | Stops a *voluntary* disruption (node drain, upgrade) taking the last replica. It does nothing about a node dying — that is what the replica count and anti-affinity are for. Never rendered at `replicas: 1`, where `minAvailable: 1` would block every drain of that node forever. |
| `observability.livenessWorkload.kind` defaults to **`StatefulSet`** | The `up` SLI reads kube-state-metrics by workload kind. A Deployment-shaped rule against a StatefulSet `absent()`s forever — an alert that can never fire. Deriving the default means bumping the replica count cannot leave a stale rule behind. |
**Two costs, both deliberate, neither hidden:**
1. **N replicas need N schedulable nodes.** On a 3-node cluster, losing two nodes leaves a replica
`Pending`; since `apps-wave-0` is `wait: true` and `apps-wave-1` `dependsOn` it, that **stalls the
app tier**. That coincides with having lost etcd quorum on a 3-node control plane, so nothing is
reconciling at that point anyway — the stall is a symptom, not a new failure mode.
2. **Only declare `> 1` for a service whose on-disk state is reproducible from git.** A replica with
a fresh volume comes up serving whatever it can bootstrap itself and nothing else. For pihole that
prerequisite was done first — the admin password and the adlists were declared in
`decisions/2026-10-04-pihole-declare-state.md` — because otherwise a second replica would have
served DNS while blocking nothing, with a different password.
**Requirements:** R-PLAT-02 (the workload), R-STATE-01/02 (per-replica replicated volumes),
R-OBS-01 (the SLI must follow the rendered kind).
### `hardware` (`gpu`) — host device capability ### `hardware` (`gpu`) — host device capability
- **The field is INTENT, never MECHANISM.** `hardware.gpu` is an **enum of capability classes** - **The field is INTENT, never MECHANISM.** `hardware.gpu` is an **enum of capability classes**
(today: `intel-quicksync`), not a device path, not a hostPath, not a resource request. The (today: `intel-quicksync`), not a device path, not a hostPath, not a resource request. The
+16 -1
View File
@@ -2,7 +2,7 @@
"$schema": "https://json-schema.org/draft/2020-12/schema", "$schema": "https://json-schema.org/draft/2020-12/schema",
"$id": "https://home.keithjackson.dev/schemas/servicedefinition.schema.json", "$id": "https://home.keithjackson.dev/schemas/servicedefinition.schema.json",
"title": "ServiceDefinition", "title": "ServiceDefinition",
"description": "Operator-facing onboarding contract for the home k3s + Longhorn platform. One ServiceDefinition per file under catalog/. Captures INTENT; the platform compiles it into concrete resources (see schemas/renderer-contract.md). Canonical source of truth: spec docs/13-service-catalog.md. Serves R-GITOPS-02; ties into R-NET-*, R-STATE-*, R-TLS-*, R-DNS-*, R-OBS-*, R-UPD-*, R-IDP-*. Schema version: 1.9.0 (adds optional `auth.apiRoutes` -- a per-service list of anchored path regexes the forward-auth oauth2-proxy sidecar answers with 401 instead of a 302 to Keycloak, rendered as one repeatable `--api-route` per entry. The `auth` block stays `additionalProperties: false`; this is one named, documented key, not an opened door. Without it there was NO per-app override hook at all, so the only way to answer an app's XHRs with 401 was a renderer-wide constant -- and the path shape is a property of the app: jackett's is `/api/` (33 x 302 vs 2 x 401 measured 2026-09-30, 4 of 6 POSTs answered by the proxy and never reaching the app), radarr's is `/signalr/` (232 x 302 measured 2026-10-01, every one a POST from a left-open browser tab that is never re-prompted), and pihole serves no `/api/` at all. Each entry must be anchored at `^/` and continue with literal path characters, because a too-broad regex turns a plain page load into a 401 and the service looks permanently broken to a logged-out user. Enforced on every gate run by ci/l0.sh's schema stage over catalog/*.yaml, by catalog/render.py refusing to render an unanchored entry, and by conformance/tests/l0-static/oauth2-proxy-api-routes-per-app)). 1.8.0 (adds optional `hardware` - a host HARDWARE CAPABILITY declaration for the container kind, currently one member: `hardware.gpu: intel-quicksync`, meaning the workload needs the host iGPU render device for hardware video transcode. It is an ENUM OF INTENT, not a device path: the renderer satisfies it today with just two things -- a /dev/dri hostPath volume (`DirectoryOrCreate`) and a read-write /dev/dri volumeMount on the app container -- and a later move to the Intel GPU device plugin is then a render.py change with no catalog edit. It sets NO podSecurityContext.supplementalGroups: measured in-container on prod 2026-09-30, the pms-docker cont-init hook adds the app user to the device's group inside the container and `s6-setuidgid` then REPLACES the process group list from /etc/group, discarding anything Kubernetes supplied, so such an entry would be inert and misleading. Renders NOTHING when absent, so every existing app stays byte-identical. Emits no privileged securityContext (Kyverno restrict-host-namespaces would reject it and it is not needed), no nodeSelector (node placement is a separate concern with its own justification) and no resource requests). 1.7.0 (no field changes; a MAPPING change to `exposure`, which had never had an effect on DNS. `exposure: internal` now renders ExternalDNS's own controller annotation onto every HTTPRoute it emits, set to a value other than `dns-controller`, so external-dns (v0.21.0, source/gateway.go -> annotations.IsControllerMismatch) skips the route before resolving any hostname and the service is INCAPABLE of producing a public record. Both docs/09 R-DNS-03 and schemas/renderer-contract.md already said `internal` renders no public DNS record; nothing enforced it, and six internal services -- jackett, pihole, qbittorrent, radarr, semaphore, sonarr -- were publishing `<name>.home.keithjackson.dev` into the PUBLIC Cloudflare zone answering with the RFC1918 Gateway VIP, which published the internal subnet and a full service inventory and made each name a DNS-rebind primitive. Enforced on every gate run by conformance/tests/l0-static/internal-services-publish-no-public-dns). 1.6.0 (splits `observability.metrics` from WHERE metrics live: adds optional `metricsEndpoint` (port/name/path/interval) and optional `livenessWorkload` (kind/name). `metrics: true` previously rendered a ServiceMonitor hardcoded to a port named `metrics` that no rendered Service ever defined, so all twelve app monitors discovered ZERO targets and every `up{job=...}` SLI was structurally inert on prod; a monitor is now rendered only from a declared `metricsEndpoint`, which also renders the Service port and the monitoring-namespace ingress allow, and the `up` SLI is expressed against kube-state-metrics -- a signal that exists for every workload without a per-app exporter. `livenessWorkload` names the object whose readiness IS the service, for the case where the running workload is not the one this SD renders). 1.5.0 (adds optional `inClusterClients` — additional in-cluster clients, named by NAMESPACE, admitted to a declared port of this service DIRECTLY, bypassing the shared Gateway. `ingressRoutes` admits only the Gateway proxy identity and `dependencies` only links catalog services, so a PLATFORM controller dialling a Service ClusterIP had no authorable form at all; that gap is what deadlocked proLine truncated "description": "Operator-facing onboarding contract for the home k3s + Longhorn platform. One ServiceDefinition per file under catalog/. Captures INTENT; the platform compiles it into concrete resources (see schemas/renderer-contract.md). Canonical source of truth: spec docs/13-service-catalog.md. Serves R-GITOPS-02; ties into R-NET-*, R-STATE-*, R-TLS-*, R-DNS-*, R-OBS-*, R-UPD-*, R-IDP-*. Schema version: 1.10.0 (adds optional `availability` for the container kind, one member: `availability.replicas`. It is AVAILABILITY INTENT, not a scheduling primitive -- it names no Kubernetes object, no topology key and no budget. 1 (the default) renders a Deployment exactly as before, so every pre-existing app stays byte-identical; >1 means the service must survive the loss of a single node, and the renderer satisfies that with a StatefulSet whose longhorn volumes become per-replica volumeClaimTemplates (a longhorn PVC is ReadWriteOnce and cannot attach on two nodes, so a multi-replica Deployment is UNSCHEDULABLE, not merely suboptimal), REQUIRED podAntiAffinity on kubernetes.io/hostname (preferred would let every replica land on one node and deliver none of the intended tolerance while reporting healthy), podManagementPolicy Parallel, a PodDisruptionBudget of minAvailable 1, and an `up` SLI that follows the rendered kind (a Deployment-shaped rule against a StatefulSet absent()s forever and can never fire). Added for pihole, where LAN DNS -- a critical network service -- was one pod on one node: measured 2026-10-04, losing the node running it meant roughly 6-10 minutes with no LAN resolution (tolerationSeconds 300 plus node-NotReady detection plus a Longhorn RWO force-detach). Deliberately NOT usable until a service's state is reproducible from git, because a replica with a fresh volume otherwise comes up serving but unconfigured -- for pihole that prerequisite was done first (decisions/2026-10-04-pihole-declare-state.md). Capped at 5: a count above the node count can never schedule under the anti-affinity this implies. Mechanism documented in schemas/renderer-contract.md `### availability`). 1.9.0 (adds optional `auth.apiRoutes` -- a per-service list of anchored path regexes the forward-auth oauth2-proxy sidecar answers with 401 instead of a 302 to Keycloak, rendered as one repeatable `--api-route` per entry. The `auth` block stays `additionalProperties: false`; this is one named, documented key, not an opened door. Without it there was NO per-app override hook at all, so the only way to answer an app's XHRs with 401 was a renderer-wide constant -- and the path shape is a property of the app: jackett's is `/api/` (33 x 302 vs 2 x 401 measured 2026-09-30, 4 of 6 POSTs answered by the proxy and never reaching the app), radarr's is `/signalr/` (232 x 302 measured 2026-10-01, every one a POST from a left-open browser tab that is never re-prompted), and pihole serves no `/api/` at all. Each entry must be anchored at `^/` and continue with literal path characters, because a too-broad regex turns a plain page load into a 401 and the service looks permanently broken to a logged-out user. Enforced on every gate run by ci/l0.sh's schema stage over catalog/*.yaml, by catalog/render.py refusing to render an unanchored entry, and by conformance/tests/l0-static/oauth2-proxy-api-routes-per-app)). 1.8.0 (adds optional `hardware` - a host HARDWARE CAPABILITY declaration for the container kind, currently one member: `hardware.gpu: intel-quicksync`, meaning the workload needs the host iGPU render device for hardware video transcode. It is an ENUM OF INTENT, not a device path: the renderer satisfies it today with just two things -- a /dev/dri hostPath volume (`DirectoryOrCreate`) and a read-write /dev/dri volumeMount on the app container -- and a later move to the Intel GPU device plugin is then a render.py change with no catalog edit. It sets NO podSecurityContext.supplementalGroups: measured in-container on prod 2026-09-30, the pms-docker cont-init hook adds the app user to the device's group inside the container and `s6-setuidgid` then REPLACES the process group list from /etc/group, discarding anything Kubernetes supplied, so such an entry would be inert and misleading. Renders NOTHING when absent, so every existing app stays byte-identical. Emits no privileged securityContext (Kyverno restrict-host-namespaces would reject it and it is not needed), no nodeSelector (node placement is a separate concern with its own justification) and no resource requests). 1.7.0 (no field changes; a MAPPING change to `exposure`, which had never had an effect on DNS. `exposure: internal` now renders ExternalDNS's own controller annotation onto every HTTPRoute it emits, set to a value other than `dns-controller`, so external-dns (v0.21.0, source/gateway.go -> annotations.IsControllerMismatch) skips the route before resolving any hostname and the service is INCAPABLE of producing a public record. Both docs/09 R-DNS-03 and schemas/renderer-contract.mdLine truncated
"type": "object", "type": "object",
"additionalProperties": false, "additionalProperties": false,
"required": ["name", "source"], "required": ["name", "source"],
@@ -139,6 +139,21 @@
"supplementalGroups": { "type": "array", "items": { "type": "integer" }, "description": "Additional GIDs added to the first process in each container." } "supplementalGroups": { "type": "array", "items": { "type": "integer" }, "description": "Additional GIDs added to the first process in each container." }
} }
}, },
"availability": {
"type": "object",
"description": "Optional availability intent for the container kind: how many replicas of this workload must be running. INTENT ONLY -- it names no Kubernetes object and no scheduling primitive. How the platform satisfies it (workload kind, per-replica volumes, node spreading, disruption budget) is catalog/render.py's business, documented in schemas/renderer-contract.md `### availability`. Absent => replicas 1 and a Deployment, so every pre-existing app renders byte-identical. Ignored for kind=vm (a VM's availability is a different problem with different primitives).",
"additionalProperties": false,
"minProperties": 1,
"properties": {
"replicas": {
"type": "integer",
"description": "How many replicas must be running. 1 (default) renders a Deployment exactly as before. >1 declares that the service must survive the loss of a single node; the renderer then emits a StatefulSet with per-replica volumeClaimTemplates, required per-node anti-affinity, podManagementPolicy Parallel and a PodDisruptionBudget. Only declare >1 for a service whose on-disk state is reproducible from git -- a replica with a fresh volume comes up serving whatever it can bootstrap itself, and nothing else.",
"minimum": 1,
"maximum": 5,
"default": 1
}
}
},
"hardware": { "hardware": {
"type": "object", "type": "object",
"description": "Optional host HARDWARE CAPABILITY the workload needs, for the container kind (docs/13). This field declares INTENT (`what device class this service needs`), never MECHANISM (`which host path to bind-mount`, `which extended resource to request`). That separation is the whole point of the enum: the platform currently satisfies `intel-quicksync` with a /dev/dri hostPath volume and a matching mount on the app container, but a later migration to the Intel GPU device plugin (`gpu.intel.com/i915` resource requests, no hostPath) must be a catalog/render.py change and NOTHING else - no ServiceDefinition may need editing, and no reviewer may have to re-derive per-service device wiring. Do NOT 'simplify' this into a raw device path, a hostPath, or a resource request; that would push a platform implementation detail into the operator-facing contract and make the migration a catalog-wide edit. Absent => no device wiring at all (existing apps render byte-identical). Ignored for kind=vm (a VM gets devices through KubeVirt's own domain.devices).", "description": "Optional host HARDWARE CAPABILITY the workload needs, for the container kind (docs/13). This field declares INTENT (`what device class this service needs`), never MECHANISM (`which host path to bind-mount`, `which extended resource to request`). That separation is the whole point of the enum: the platform currently satisfies `intel-quicksync` with a /dev/dri hostPath volume and a matching mount on the app container, but a later migration to the Intel GPU device plugin (`gpu.intel.com/i915` resource requests, no hostPath) must be a catalog/render.py change and NOTHING else - no ServiceDefinition may need editing, and no reviewer may have to re-derive per-service device wiring. Do NOT 'simplify' this into a raw device path, a hostPath, or a resource request; that would push a platform implementation detail into the operator-facing contract and make the migration a catalog-wide edit. Absent => no device wiring at all (existing apps render byte-identical). Ignored for kind=vm (a VM gets devices through KubeVirt's own domain.devices).",