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Author SHA1 Message Date
jakman85andClaude Opus 5 d1a6628a97 feat(ha): the CNI dials the control-plane VIP — kube-vip becomes a CNI prerequisite
gate / gate (push) Has been cancelled
gate / conformance (push) Has been cancelled
OPERATOR DECISION 2026-09-06: "use the VIP as intended — a virtual address to reach
the cluster and provide fault tolerant HA. Without a change it will not work in HA."

THE DEFECT. Cilium's kube-proxy replacement dialled a SINGLE NODE. Re-confirmed live
before changing anything: all three prod cilium-agent pods carried
KUBERNETES_SERVICE_HOST=192.168.2.10 — k3s-prod-1's own address — while the kube-vip
VIP 192.168.2.9 was Running on all three nodes with a held lease. Lose prod-1 and the
CNI's control-plane path is dead on an "HA" cluster. clusters/prod's own comment said
the value must be the VIP and NOT .10, then called it "Not yet decided" — I treated
that stale comment as an open question when the evidence already settled it.

SPLIT, NOT REPOINT, because k3s_api_host had two consumers with opposite needs:
  k3s_api_host            unchanged — the FOUNDER's IP: the cold-bootstrap join
                          target and a tls-san. infra/tofu/outputs.tf GENERATES this
                          name, so renaming would ripple into tofu and the runbooks.
  k3s_apiserver_endpoint  NEW = {{ kube_vip_address }} — the HA address; what Cilium
                          consumes. Derived, not restated, so an environment overrides
                          ONE line and the VIP, the SAN and the CNI endpoint move
                          together. Prod needed no new override.

THE SECOND HAZARD, WHICH MY BRIEF DID NOT NAME and the agent found: pointing Cilium at
the VIP breaks a COLD bootstrap for the same reason the join would — site.yml ran
node-baseline -> k3s -> cilium, so Cilium would install against an address nothing
announced yet. That is the 2026-09-01 deadlock shape. Fixed by SEQUENCE, not value:
site.yml now imports kube-vip.yml BETWEEN k3s and cilium. It cannot go earlier
(kube-vip is a k3s auto-deploy manifest, so it needs a cluster) and it works there
because the DaemonSet is hostNetwork with KUBERNETES_SERVICE_HOST=127.0.0.1 — needing
neither CNI nor kube-proxy. roles/kube_vip gained a read-only `wait_for` on the VIP so
a cold run stops THERE with a named cause instead of surfacing as unreachable agents.

Also fixed a pre-existing bug that only mattered once this play joined site.yml: the
role's read-only interface probe ran without `check_mode: false`, so under --check it
was skipped and the assert fired with a misleading "set kube_vip_interface explicitly".

VERIFIED BY ME, not just reported:
  renders    dev K3S_API_HOST=192.168.1.49   prod=192.168.2.9  (each environment's VIP)
  cilium     template consumes k3s_apiserver_endpoint, not k3s_api_host
  cold join  still `--server https://{{ k3s_api_host }}:6443` — the founder
  order      site.yml: node-baseline -> k3s -> kube-vip -> cilium -> verify -> flux
  gate       full CI gate PASS
Agent-side, additionally: in-memory render of cilium-values.yaml.j2 per host showing
k8sServiceHost=the VIP with the join still on the founder; k3s_tls_sans renders
['.10','.9','127.0.0.1','.11','.12'] so NO cert reissue and NO k3s restart is involved
— .9 already answers under full CA verification; and --check --diff of kube-vip.yml
against prod reported 6 ok / 0 changed, i.e. the role edits change nothing about the
kube-vip prod already runs.

ha-control-plane-as-code 92 -> 112 assertions, turning two escalations into machine
checks: the Cilium template must use the endpoint var; the endpoint must derive from
kube_vip_address and k3s_api_host must not; per environment K3S_API_HOST must equal
that environment's VIP and be none of its node IPs (the [parity] contract, now
machine-checked rather than a comment); site.yml must order k3s -> kube-vip -> cilium.
Every new assertion mutation-tested and bites. One honest negative recorded: reverting
only the BASE default is not caught, because both overlays patch the key — the check
reads effective per-environment values, so the base default is unguarded.

APPLY ORDER, and this is the operator's step — nothing was applied:
  PROD FIRST, and it is the low-risk direction (prod is the broken one). Push and let
  Flux reconcile platform/cilium: the value change rolls the cilium-agent DaemonSet
  ONE NODE AT A TIME (maxUnavailable: 1 — the knob that bounded the 2026-09-01
  incident), it will not proceed past an unready pod, existing datapath survives an
  agent restart, and .9 is already live before the change lands.
  DEV SEPARATELY, operator present. Same mechanics but live dev agents dial
  192.168.1.50, and dev is mid-DNS-migration on dev-live. Do not fold it into that.
  ANSIBLE: nothing to run for either live cluster; the Ansible half matters only for a
  cold build. Remove the now-redundant standalone kube-vip.yml step from any runbook.

NEW NAMED GAP, unwritten: the L2 test cannot assert the running agents' live
KUBERNETES_SERVICE_HOST, which is the drift the L0 check cannot see. Recorded in that
test's gap list.

Refs R-PLAT-01, R-NET-01, R-ENV-02.

Co-Authored-By: Claude Opus 5 <[email protected]>
2026-09-06 22:17:30 -05:00
jakman85andClaude Opus 5 f178d85c71 fix(kyverno): unblock CDI imports by SATISFYING the label requirement, not exempting it
Prod's UniFi VM has no disk. `DataVolume unifi/unifi-rootdisk` stuck in
ImportScheduled for hours, because Kyverno denied CDI's own generated pod:

  validate.kyverno.svc-fail denied Pod/unifi/importer-prime-<uid>
    require-auth-mode-label     (R-IDP-02)
    require-egress-class-label  (R-NET-05)

Both policies match any Pod in an `app-namespace: "true"` namespace with no
exclusion, and CDI generates `importer-*` itself — it cannot carry repo labels.
A COLD-START defect, not a prod quirk: dev's identical import Succeeded 9 days
ago, before the policies enforced, so dev has never exercised it and would hit it
on any rebuild. Fourth bug of this shape in two days.

MECHANISM: a MUTATE ClusterPolicy that ADDS
`egress-class: internet` + `auth-mode: none` (add-if-absent anchor) to Pods on
CREATE in app namespaces WHEN the requesting subject is ServiceAccount
`cdi/cdi-sa`. Both validate policies are untouched — no exclude, no exception,
`background: true` preserved on them.

Why mutate beats exempting: the requirement stays literally true ("every pod in an
app namespace declares both labels") and the values are HONEST — the importer does
pull over the default WAN path, and `internet` is the least-reach class (it does
not grant the VPN path); a transient worker pod with no UI genuinely is
`auth-mode: none`.

THE MATCH IS IDENTITY, NOT A NAME. `subjects: ServiceAccount cdi/cdi-sa` is the
AdmissionReview userInfo, taken from the real prod denial
(`system:serviceaccount:cdi:cdi-sa`, name importer-prime-…, op CREATE). A name
prefix is attacker-choosable; a requesting ServiceAccount is not — and the test
proves it, with a fixture `importer-prime-forged-by-an-app` that copies both the
name prefix AND CDI's labels and is still DENIED. Covers every CDI worker kind
(importer/uploader/cloner) without enumerating names that change per release.
Confirmed on prod that cdi-sa is the only cdi-namespace SA that can create pods.

REJECTED, and the first one is a trap worth recording:
  * PolicyException — the CRD EXISTS (v2/v2beta1, from the pre-applied bundle) but
    all controllers run `--enablePolicyException=false` (verified live on prod:
    admission, background and reports controllers all carry the flag). An exception
    would apply cleanly through Flux and be SILENTLY IGNORED. Enabling the gate is a
    cluster-wide capability change for no gain over the mutate.
  * `exclude` scoped to cdi-sa — sound identity, worse consequences: any userInfo
    match forces `background: false`, which would drop background scanning and
    policy-report coverage of R-NET-05/R-IDP-02 for ALL EXISTING PODS to fix one pod
    class. It also leaves the importer with no labels at all — the unlabelled
    fall-through that require-egress-class-label's own header calls a fail-open leak.
  * name-prefix / CDI-label matching — attacker-choosable, and proven walkable.

TWO-WAY PROOF, non-vacuous by construction — same resource, different requester,
opposite outcomes (verified by me, not just reported):
  userinfo cdi-sa   -> mutate pass, require-egress-class pass, require-auth-mode pass
  userinfo ordinary -> mutate SKIP,  require-egress-class FAIL, require-auth-mode FAIL
Kyverno L0 went 17 -> 29 tests passed, 0 failed. The mutate policy is deliberately
kept OUT of the existing tests/kyverno-test.yaml: that suite declares no userinfo,
and without userinfo the offline engine does not discriminate on subjects — it
mutates everything, which would have silently turned its negative rows into passes.

platform-config/kustomization.yaml is the live apply path for these ClusterPolicies;
without it the policy never reaches a cluster.

RESIDUAL TRADE-OFF, reversible by deleting one file: anything created by cdi-sa in
an app namespace now has these labels supplied rather than being rejected for not
declaring them — including a pod that is not a CDI worker. That identity already
holds `pods create/delete` cluster-wide via ClusterRole `cdi`, so it is not a new
capability; what changes is that for that one identity the declaration is assumed
rather than demanded. restrict-host-namespaces, the namespace default-deny baseline
and the CiliumNetworkPolicies all still apply.

FIRST resource-mutating policy on this cluster: kyverno-resource-mutating-webhook-cfg
holds 0 webhooks today; with autoUpdateWebhooks=true Kyverno registers
mutate.kyverno.svc-fail for Pods within seconds of this applying. Prod's
forceFailurePolicyIgnore=false makes it failurePolicy: Fail — same posture as the
validating webhook already in that path.

CDI retries importer creation on a loop, so the stuck import should proceed once
this lands. The detached prime-be3f9d1c-… 40 GiB scratch PVC is separate operator
cleanup; untouched, as is the DataVolume.

VERIFIED: full CI gate PASS. Nothing applied to any cluster.

Refs R-IDP-02, R-NET-05, R-PLAT-01.

Co-Authored-By: Claude Opus 5 <[email protected]>
2026-09-06 22:17:30 -05:00
28 changed files with 741 additions and 45 deletions

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+31 -4
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@@ -101,10 +101,37 @@ data:
# ship the literal string into the cluster.
# k3s API endpoint Cilium's kube-proxy replacement dials (platform/cilium/helmrelease.yaml).
# [parity] MUST equal the Ansible bootstrap's k3s_api_host (infra/ansible/roles/cilium/defaults/
# main.yml -> cilium-values.yaml.j2, already inventory-parameterized). Wrong value = Cilium cannot
# reach the API server on adopt and the CNI breaks. Port stays 6443 in both envs, so it is NOT a knob.
K3S_API_HOST: "192.168.1.50"
#
# *** THIS IS THE CONTROL-PLANE VIP (kube-vip), NOT A NODE ADDRESS. *** Operator decision
# 2026-09-06. It was each environment's PRIMARY NODE IP until then, which made the CNI's
# control-plane path depend on one machine in a cluster whose entire purpose is HA: verified on
# live prod, all three cilium-agents carried KUBERNETES_SERVICE_HOST=192.168.2.10 (k3s-prod-1's
# own address) while kube-vip held 192.168.2.9. Losing that node leaves the datapath running off
# Cilium's cache while NO service or policy update lands — a silent, unbounded staleness, not an
# outage you would notice. A virtual address that follows the control plane is the fix, and it is
# what kube-vip was stood up to provide.
#
# dev -> 192.168.1.49 (= kube_vip_address, group_vars/all.yml; base default, below)
# prod -> 192.168.2.9 (= kube_vip_address, group_vars/k3s_prod/vars.yml)
#
# THE NAME IS NOW SLIGHTLY WRONG AND IS KEPT ANYWAY: renaming the knob would be a second,
# unrelated change to every substituting Kustomization at the same time as a live CNI endpoint
# move. Read it as "the API host Cilium dials", which is what it always meant.
#
# [parity] MUST equal the Ansible bootstrap's **k3s_apiserver_endpoint** for the SAME environment
# (infra/ansible/inventory/group_vars/all.yml -> roles/cilium/templates/cilium-values.yaml.j2,
# already inventory-parameterized). NOT k3s_api_host — that variable still exists and still holds
# the FOUNDER's address, because the cold-bootstrap `--server` join needs a machine that is
# already up before any VIP exists. The two are deliberately separate; see the TWO API ADDRESSES
# block at the top of group_vars/all.yml.
#
# Wrong value = Cilium cannot reach the API server on adopt and the CNI breaks. Port stays 6443
# in both envs, so it is NOT a knob.
#
# TLS needs nothing: k3s_tls_sans has always carried kube_vip_address alongside every node IP, so
# both addresses are already in the serving cert (verified live 2026-09-06 — prod answers through
# https://192.168.2.9:6443 under full CA verification). No cert reissue, no k3s restart.
K3S_API_HOST: "192.168.1.49"
# CiliumLoadBalancerIPPool `default-pool` (platform-config/cilium/l2-ip-pool.yaml): the VIP range
# L2-announced on the flat LAN. Must sit OUTSIDE the node IPs and any DHCP scope, and must match the
+17 -3
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@@ -187,11 +187,25 @@ patches:
- op: replace
path: /data/GATEWAY_VIP
value: "192.168.1.53"
# k3s API endpoint Cilium's kube-proxy replacement dials — the primary control-plane node
# (k3s-1). [parity] equals the Ansible inventory's k3s_api_host for dev.
# k3s API endpoint Cilium's kube-proxy replacement dials — DEV'S CONTROL-PLANE VIP,
# the address kube-vip floats, NOT the primary node .50.
# [parity] equals the Ansible inventory's k3s_apiserver_endpoint for dev
# (= kube_vip_address, group_vars/all.yml). See clusters/base/cluster-vars.yaml for why.
#
# *** THE ONE EXCEPTION TO "NEVER LET THIS BLOCK DRIFT FROM THE LIVE CLUSTER" ***
# Every other value in this block is what dev is running right now. This one is not:
# the live dev cilium-agents dial 192.168.1.50 (k3s-1). Changing it here is a
# DELIBERATE, OPERATOR-APPROVED move (2026-09-06) and reconciling it ROLLS THE CILIUM
# AGENT DAEMONSET on dev — one node at a time (updateStrategy.maxUnavailable: 1, kept
# in parity for exactly this reason). Do not push this to dev-live casually, and not
# while dev's DNS migration is mid-flight; the L2 datapath survives an agent restart
# but a wrong value here is the 2026-09-01 incident. .49 is in dev's serving-cert SANs
# already (k3s_tls_sans) and dev's own kubeconfig validates against it via
# tls-server-name, so TLS is not the risk — the risk is reachability, and .49 is on the
# same LAN as the nodes and ARP-announced by kube-vip on every server.
- op: replace
path: /data/K3S_API_HOST
value: "192.168.1.50"
value: "192.168.1.49"
# Cilium LB IP pool = the tofu reservation cilium_l2_vip_range .53-.60, outside the node IPs
# (.50/.51/.52) and outside the DHCP scope. .53 Gateway, .54 unifi, .55 crafty; .56-.60 free.
- op: replace
+23 -5
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@@ -356,14 +356,32 @@ patches:
- op: replace
path: /data/CILIUM_LB_POOL_STOP
value: "192.168.2.30"
# --- still UNDECIDED -> loud placeholders (must be real before `flux bootstrap`) ------------
# k3s API endpoint Cilium's kube-proxy replacement dials. This is the prod CONTROL-PLANE VIP
# (kube-vip), NOT .20 (the ingress VIP) and NOT the single node address .10. It is owned
# Ansible-side (prod inventory k3s_api_host) and MUST equal that value — [parity] contract in
# platform/cilium/helmrelease.yaml. Not yet decided.
# (kube-vip), NOT .20 (the ingress VIP) and NOT the single node address .10.
#
# *** DECIDED 2026-09-06 by the operator: the VIP, as intended. *** (This block previously
# read "Not yet decided" while shipping .10 — the founder's own address — and that is what
# the LIVE prod cluster is running: all three cilium-agents carry
# KUBERNETES_SERVICE_HOST=192.168.2.10 while kube-vip holds .9, verified 2026-09-06. On a
# 3-node HA cluster that makes the CNI's control-plane path depend on k3s-prod-1: lose it and
# the datapath keeps running off Cilium's cache while no service or policy update lands, with
# nothing looking broken. The VIP is a virtual address that reaches the cluster wherever the
# control plane is, which is the whole reason kube-vip exists here.)
#
# It is owned Ansible-side by **k3s_apiserver_endpoint** (group_vars/all.yml, derived from
# this environment's kube_vip_address = 192.168.2.9 in group_vars/k3s_prod/vars.yml) and MUST
# equal that value — [parity] contract in platform/cilium/helmrelease.yaml. NOT k3s_api_host:
# that variable still exists and still holds the FOUNDER's .10, because the cold-bootstrap
# `--server` join needs a host that is up before any VIP is floated. Two addresses, two
# variables, deliberately.
#
# .9 sits OUTSIDE the Cilium LB pool (.20-.30) and is not a node address, so kube-vip and
# LB-IPAM can never be handed the same IP — asserted by
# conformance/tests/l0-static/ha-control-plane-as-code.
- op: replace
path: /data/K3S_API_HOST
value: "192.168.2.10"
value: "192.168.2.9"
# --- still UNDECIDED -> loud placeholders (must be real before `flux bootstrap`) ------------
# Pinned L4 VIPs, both carved out of the pool by lbipam.cilium.io/ips. Not yet assigned for
# prod. Leaving the dev literals in place would hand a prod LoadBalancer a dev-LAN address, so
# they stay placeholders; whatever is chosen MUST fall inside [POOL_START, POOL_STOP] and not
+26 -5
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@@ -79,11 +79,30 @@ Ansible installs Cilium; the Flux `platform/cilium` HelmRelease adopts config
afterward. The parity-critical values **must match** between this role's
`templates/cilium-values.yaml.j2` and that HelmRelease:
- `kubeProxyReplacement: true`
- `k8sServiceHost: {{ k3s_api_host }}` (= primary node IP, `10.73.0.11` by default)
- `k8sServicePort: 6443`
- `k8sServiceHost: {{ k3s_apiserver_endpoint }}` — **the kube-vip CONTROL-PLANE VIP**
(`= kube_vip_address`: dev `192.168.1.49`, prod `192.168.2.9`), **not** `k3s_api_host`
- `k8sServicePort: {{ k3s_api_port }}` (6443 in both environments)
The HelmRelease currently has `k8sServiceHost: "REPLACE-ME"` — WS-NET must set it
to the same value this role uses (surfaced by `tofu output primary_node_ip`).
### Two API addresses, split 2026-09-06 — do not re-merge them
`k3s_api_host` and `k3s_apiserver_endpoint` were one variable, and the conflation put every
prod `cilium-agent` on `192.168.2.10` (`k3s-prod-1`'s own address) on a cluster whose point is
HA — verified live. Lose that node and the datapath keeps serving from Cilium's cache while no
service or policy update ever lands, which is a silent failure, not an outage.
| variable | value | consumed by | why it must be that address |
|---|---|---|---|
| `k3s_api_host` | the founder's own node IP (dev `192.168.1.50`, prod `192.168.2.10`) | `roles/k3s_server`: the secondary `--server https://…:6443` join URL, and one `k3s_tls_sans` entry | on a **cold** build no VIP exists yet (kube-vip is a k3s auto-deploy manifest, so it needs a cluster first). The founder just ran `--cluster-init` and is up |
| `k3s_apiserver_endpoint` | `{{ kube_vip_address }}` (dev `192.168.1.49`, prod `192.168.2.9`) | `roles/cilium` → `k8sServiceHost`; any steady-state client | it must survive losing any single server |
Consequences already handled: `playbooks/site.yml` imports `kube-vip.yml` **between** `k3s.yml`
and `cilium.yml` (the VIP has to be floating before the CNI dials it), and `roles/kube_vip`'s
last task blocks until the VIP answers on 6443. `k3s_tls_sans` already carried both addresses,
so no cert reissue and no k3s restart are involved.
The Flux side of the same contract is `${K3S_API_HOST}` in `platform/cilium/helmrelease.yaml`,
set per overlay in `clusters/<env>/kustomization.yaml`; `[parity]` means it must equal
`k3s_apiserver_endpoint` for the SAME environment. Asserted by
`conformance/tests/l0-static/ha-control-plane-as-code`.
## Interface assumed of `bootstrap/` (authored by other workers, NOT here)
`roles/flux_bootstrap` invokes two entrypoints via overridable command vars:
@@ -148,7 +167,9 @@ ansible-playbook playbooks/site.yml \
What the roles then resolve **by themselves** for a prod host, from `group_vars/k3s_prod/vars.yml`:
`k3s_primary_group=k3s_prod_primary` (the `--cluster-init` founder, the node-token `delegate_to`
target, and the node Cilium fetches the kubeconfig from), `k3s_servers_group=k3s_prod` (the tls-san
node-IP list), `k3s_api_host=192.168.2.10`, `kube_vip_address=192.168.2.9`, and
node-IP list), `k3s_api_host=192.168.2.10` (the founder, bootstrap-join only),
`kube_vip_address=192.168.2.9` — and therefore `k3s_apiserver_endpoint=192.168.2.9`, which is what
Cilium dials — and
`cluster_kubeconfig_name=prod.kubeconfig` — so a prod run can never overwrite the
`.cache/dev.kubeconfig` that `infra/devcontainer/dev.sh` exports as `$KUBECONFIG`.
+73 -7
View File
@@ -27,19 +27,85 @@ k3s_servers_group: k3s_servers
# a kubeconfig is a credential.)
cluster_kubeconfig_name: dev.kubeconfig
# The kube-apiserver endpoint the whole stack agrees on: the primary's REAL node IP.
# --- TWO API ADDRESSES, AND THEY ARE NOT INTERCHANGEABLE (split 2026-09-06) ----------
# This used to be ONE variable, k3s_api_host, consumed by BOTH the cold-bootstrap join and
# Cilium's k8sServiceHost. That conflation is what pointed every cilium-agent on the LIVE
# prod cluster at 192.168.2.10 — k3s-prod-1's own address — on a cluster whose entire
# purpose is HA: verified 2026-09-06, all three agents carried
# KUBERNETES_SERVICE_HOST=192.168.2.10 while kube-vip held 192.168.2.9. Lose that one node
# and no service/policy update reaches the CNI until it returns (the existing datapath
# survives on Cilium's cache, so it fails SILENTLY). The two consumers have genuinely
# different requirements, so they now have two variables.
#
# k3s_api_host THE FOUNDER'S OWN ADDRESS. Bootstrap-time only.
# k3s_apiserver_endpoint THE HA ENDPOINT (the kube-vip VIP). Steady-state.
#
# DO NOT "simplify" these back into one. See each block below for why each half must be
# the address it is.
# THE FOUNDER'S OWN NODE IP — a BOOTSTRAP-TIME address, deliberately NOT the VIP.
# NOTE: ansible_host is now the pfSense NAT SSH target (192.168.2.102:225x), NOT the node
# IP — so we read the real 192.168.1.x from k3s_node_ip instead. Used for k3s --tls-san /
# secondary --server AND for Cilium k8sServiceHost so the Ansible bootstrap and the Flux
# HelmRelease stay in PARITY (docs/02 contract).
# IP — so we read the real 192.168.1.x from k3s_node_ip instead.
#
# EXACTLY TWO CONSUMERS, and both of them need the founder specifically:
# 1. roles/k3s_server — the secondary `--server https://<host>:<port>` JOIN URL. On a COLD
# build the VIP DOES NOT EXIST YET at join time: kube-vip is a k3s auto-deploy manifest
# that only lands once a cluster exists, so a join aimed at the VIP is a join aimed at
# an unanswered address and the cold build is unjoinable. The founder is up (it just ran
# --cluster-init), which is the whole reason this variable is the founder.
# 2. roles/k3s_server — one entry of k3s_tls_sans, so the founder's own address is a SAN
# alongside the VIP and every other server's IP.
#
# ANYTHING THAT RUNS AGAINST A CLUSTER THAT ALREADY EXISTS MUST NOT USE THIS. It is a
# single point of failure by construction. Use k3s_apiserver_endpoint below.
k3s_api_host: "{{ hostvars[groups[k3s_primary_group][0]]['k3s_node_ip'] }}"
# Shared by both halves: k3s serves the API on 6443 in every environment, so the port is
# not a per-environment knob and is not duplicated per address.
k3s_api_port: 6443
# THE HA kube-apiserver ENDPOINT — a VIRTUAL address that reaches the cluster wherever the
# control plane currently is, not a machine. OPERATOR DECISION 2026-09-06: in-cluster
# components dial the VIP, as kube-vip was always intended to provide.
#
# DERIVED from kube_vip_address (below), never restated: an environment overrides the VIP in
# ONE place (group_vars/k3s_prod/vars.yml sets kube_vip_address: 192.168.2.9) and this
# follows automatically, so prod needs no override of its own and a fourth environment
# cannot set one of the two and forget the other.
#
# NAMED FOR THE ROLE, NOT THE MECHANISM. Consumers want "the address that reaches the
# apiserver, HA"; that it is currently floated by kube-vip is an implementation detail. If
# the mechanism is ever something else (an external LB, a DNS name), this one line moves and
# no consumer changes.
#
# CONSUMERS:
# - roles/cilium -> cilium-values.yaml.j2 -> k8sServiceHost. [parity] with the Flux side:
# clusters/base/cluster-vars.yaml K3S_API_HOST (and each overlay's patch) MUST equal
# THIS value for that environment, or Flux and the bootstrap fight over the CNI's
# control-plane path. See platform/cilium/helmrelease.yaml's PARITY CONTRACT header.
#
# TLS IS ALREADY COVERED — verified, not assumed: k3s_tls_sans (roles/k3s_server/defaults)
# has always included kube_vip_address, and on 2026-09-06 the prod apiserver was reached
# through https://192.168.2.9:6443 with FULL CA verification and tls-server-name=192.168.2.9
# (infra/ansible/.cache/prod.kubeconfig, no insecure-skip-tls-verify). So the serving cert
# needs no change and no k3s restart for this switch.
#
# ORDERING CONSEQUENCE, and it is why playbooks/site.yml changed too: Cilium now needs the
# VIP to be UP before it installs. site.yml therefore imports kube-vip.yml BETWEEN k3s.yml
# and cilium.yml, and roles/kube_vip waits for the VIP to answer before returning. kube-vip
# can precede the CNI because its DaemonSet is hostNetwork with
# KUBERNETES_SERVICE_HOST=127.0.0.1 — it needs neither a CNI nor kube-proxy.
k3s_apiserver_endpoint: "{{ kube_vip_address }}"
# Control-plane HA VIP floated by kube-vip (roles/kube_vip). A stable failover
# endpoint for the kube-apiserver, fronted by an operator pfSense port-forward at
# 192.168.1.49:6443. Shared here so BOTH kube_vip AND the k3s_server tls-san list
# agree on the address (the serving cert must carry this IP or TLS via the VIP
# fails to validate).
# 192.168.1.49:6443. Shared here so THREE things agree on the one address:
# - roles/kube_vip — what to ARP and lease-elect for;
# - roles/k3s_server — the tls-san entry (the serving cert must carry this IP or
# TLS via the VIP fails to validate);
# - k3s_apiserver_endpoint — above; what in-cluster components actually dial.
# THIS is the one line an environment overrides (prod: 192.168.2.9, in
# group_vars/k3s_prod/vars.yml); all three follow.
kube_vip_address: "192.168.1.49"
# Controller (dev container) reaches the kube-API DIRECTLY via the pfSense NAT
@@ -51,12 +51,18 @@ k3s_servers_group: k3s_prod
# than no kubeconfig at all). .cache/ is gitignored; a kubeconfig is a credential.
cluster_kubeconfig_name: prod.kubeconfig
# --- k3s API host — safe to set now, the primary's real IP is already known -------
# --- k3s API host — THE FOUNDER'S ADDRESS, bootstrap-time only --------------------
# Dev's k3s_api_host (group_vars/all.yml) reads a separate k3s_node_ip hostvar because
# dev's ansible_host is the pfSense NAT SSH target, not the node's real address. Prod
# has NO NAT hop — ansible_host in hosts.ini IS already the node's real, routable LAN
# address (see the KEY DIFFERENCE note there) — so point straight at it instead of
# needing a k3s_node_ip split.
#
# WHAT THIS IS *NOT*, since 2026-09-06: it is not the endpoint anything steady-state
# dials. That is k3s_apiserver_endpoint (group_vars/all.yml), which derives from
# kube_vip_address below and therefore needs NO override here. k3s_api_host is consumed
# only by the secondary `--server` cold-join URL and by one tls-san entry. Read the
# TWO API ADDRESSES block at the top of group_vars/all.yml before touching either.
k3s_api_host: "{{ hostvars[groups[k3s_primary_group][0]]['ansible_host'] }}"
# cluster_controller_tls_server_name (group_vars/all.yml) derives from kube_vip_address
# by template reference, so it needs no separate override here — it picks up the real
@@ -75,8 +81,15 @@ k3s_api_host: "{{ hostvars[groups[k3s_primary_group][0]]['ansible_host'] }}"
# round (control-plane .49, ingress pool .53-.60).
#
# This is the address kube-vip floats for the API and that k3s tls-san's onto its
# serving cert; secondaries use it as their --server join target. Dev's equivalent is
# kube_vip_address: 192.168.1.49 in group_vars/all.yml.
# serving cert. Dev's equivalent is kube_vip_address: 192.168.1.49 in group_vars/all.yml.
#
# CORRECTION 2026-09-06: an earlier version of this comment claimed "secondaries use it as
# their --server join target". They do not, and they must not — on a COLD build the VIP is
# not up when the secondaries join (kube-vip is a k3s auto-deploy manifest and needs a
# cluster first), so the join uses k3s_api_host, the founder. What DOES use this address is
# k3s_apiserver_endpoint (group_vars/all.yml, derived from this line), i.e. Cilium's
# k8sServiceHost and any other steady-state client. Overriding kube_vip_address here moves
# BOTH the VIP and prod's Cilium endpoint together, which is the point of deriving it.
#
# HISTORY: an earlier pass here wrongly set this to 192.168.2.20 — that is the INGRESS
# VIP, not the control-plane VIP. Corrected. Keep the two distinct.
+7
View File
@@ -3,6 +3,13 @@
# Control-plane ONLY (svc_enable=false) — Cilium owns Service LoadBalancing.
# Writes the manifest into each server's k3s auto-deploy dir; k3s applies it.
#
# PART OF THE ONE-COMMAND BRING-UP SINCE 2026-09-06, not a separate operator step:
# playbooks/site.yml imports this play BETWEEN k3s.yml and cilium.yml, because Cilium's
# k8sServiceHost is now this VIP (k3s_apiserver_endpoint, group_vars/all.yml) and the CNI
# cannot be installed against an endpoint nothing announces yet. The role's final task waits
# for the VIP to answer on 6443, so a failure to float it stops the run here with a named
# cause instead of surfacing later as unreachable cilium-agents.
#
# TARGET (R-ENV-02): `k3s_hosts` defaults to dev's `k3s_servers`; prod is
# ansible-playbook playbooks/kube-vip.yml -e k3s_hosts=k3s_prod
# (the VIP itself comes from kube_vip_address, already scoped per environment in
+27 -1
View File
@@ -1,7 +1,10 @@
---
# Full dev/test cluster bring-up, in order (docs/02 sequencing; run AFTER
# `tofu apply` has created and cloud-init has baselined the VMs):
# k3s HA install -> Cilium CNI -> verify readiness -> Flux + SOPS hand-off.
# k3s HA install -> kube-vip control-plane VIP -> Cilium CNI -> verify readiness
# -> Flux + SOPS hand-off.
# (kube-vip joined the chain 2026-09-06 — see the note at its import below; it is a
# prerequisite of the CNI now, not a separate operator step.)
#
# TARGET (R-ENV-02): every imported play takes its host pattern from a var that
# defaults to the dev group, so `ansible-playbook playbooks/site.yml` with no extra
@@ -20,6 +23,29 @@
- name: Import - install k3s HA control plane
ansible.builtin.import_playbook: k3s.yml
# ADDED 2026-09-06, AND ITS POSITION IS LOAD-BEARING: kube-vip MUST come up between k3s and
# Cilium. Cilium's k8sServiceHost is now the control-plane VIP (k3s_apiserver_endpoint =
# kube_vip_address) rather than the founder's own node IP, so installing Cilium before the
# VIP is announced would point every agent at an address nothing answers on — the exact
# shape of the 2026-09-01 incident, where agents that could not reach the API server
# deadlocked on a cold cluster.
#
# IT CANNOT COME EARLIER. kube-vip ships as a k3s auto-deploy manifest
# (<data-dir>/server/manifests), so a cluster must exist before it can be applied — hence
# after k3s.yml, not before.
#
# IT DOES NOT NEED THE CNI, which is what makes this ordering possible at all: the kube-vip
# DaemonSet is hostNetwork with KUBERNETES_SERVICE_HOST=127.0.0.1 (roles/kube_vip's template
# explains why), so it reaches the node-local apiserver with no CNI and no kube-proxy, and
# DaemonSet pods carry the default not-ready/network-unavailable tolerations that let them
# schedule onto a still-NotReady node. roles/kube_vip blocks until the VIP actually answers
# on 6443, so cilium.yml below cannot start against a VIP that is not up.
#
# Re-running this against the LIVE dev cluster is a no-op for this play: dev already runs
# kube-vip with the same rendered manifest, and the wait finds the VIP already answering.
- name: Import - float the control-plane HA VIP (kube-vip) BEFORE the CNI dials it
ansible.builtin.import_playbook: kube-vip.yml
- name: Import - install Cilium CNI
ansible.builtin.import_playbook: cilium.yml
+11 -1
View File
@@ -2,7 +2,17 @@
# cilium role defaults (ADR-0002, docs/02 Cilium-ownership contract).
# This role performs the INITIAL Cilium install; the Flux platform/cilium
# HelmRelease adopts config afterward. The parity-critical values
# (kubeProxyReplacement, k8sServiceHost/Port) are templated from k3s_api_host.
# (kubeProxyReplacement, k8sServiceHost/Port) are templated from
# k3s_apiserver_endpoint / k3s_api_port (group_vars/all.yml).
#
# k8sServiceHost IS THE HA VIP, NOT THE FOUNDER (changed 2026-09-06). It reads
# k3s_apiserver_endpoint — which derives from kube_vip_address, so it is dev 192.168.1.49 /
# prod 192.168.2.9 — and deliberately NOT k3s_api_host, the founder's own node IP. Those two
# were one variable until 2026-09-06, and the conflation is what left all three prod
# cilium-agents dialing k3s-prod-1 on an HA cluster. Do not re-merge them.
#
# THIS ROLE THEREFORE DEPENDS ON THE VIP EXISTING. playbooks/site.yml runs kube-vip.yml
# before cilium.yml and roles/kube_vip blocks until the VIP answers on 6443.
# Exact pin — MUST equal the platform/cilium HelmRelease chart.spec.version (1.20.1, an
# exact pin, not a range). Renovate bumps both together.
+1 -1
View File
@@ -89,7 +89,7 @@
run_once: true
changed_when: false
- name: Render the Cilium values file (parity-critical settings from k3s_api_host)
- name: Render the Cilium values file (parity-critical settings from k3s_apiserver_endpoint)
ansible.builtin.template:
src: cilium-values.yaml.j2
dest: "{{ cilium_values_path }}"
@@ -4,9 +4,24 @@
---
# [parity] k3s kube-proxy is disabled → Cilium replaces it (ADR-0001/0002).
kubeProxyReplacement: true
# [parity] = the k3s API endpoint (primary node IP). The Flux HelmRelease's
# k8sServiceHost "REPLACE-ME" must be set to this same value.
k8sServiceHost: "{{ k3s_api_host }}"
# [parity] = k3s_apiserver_endpoint, THE HA CONTROL-PLANE VIP (kube_vip_address) — dev
# 192.168.1.49, prod 192.168.2.9. NOT k3s_api_host, which is the FOUNDER'S OWN node IP:
# pointing the CNI's kube-proxy replacement at one machine on a 3-server HA cluster means
# losing that machine stops every service/policy update reaching the datapath, silently
# (the existing datapath keeps working from Cilium's cache, so nothing looks broken). That
# was the live state of prod until 2026-09-06 — all three cilium-agents carried
# KUBERNETES_SERVICE_HOST=192.168.2.10 while kube-vip held .9. See group_vars/all.yml.
#
# [parity] The Flux side is platform/cilium/helmrelease.yaml's k8sServiceHost:
# "${K3S_API_HOST}", whose per-environment value comes from clusters/<env>/kustomization.yaml.
# THAT VALUE MUST EQUAL k3s_apiserver_endpoint for the SAME environment. If it does not,
# Flux and this bootstrap render different control-plane paths and fight over the CNI.
#
# THE VIP MUST BE UP BEFORE THIS ROLE RUNS. playbooks/site.yml imports kube-vip.yml between
# k3s.yml and cilium.yml for exactly this reason, and roles/kube_vip blocks until the VIP
# answers. Rendering this against a VIP that nothing announces yet reproduces the
# 2026-09-01 shape: agents that cannot reach the API server on a cold cluster.
k8sServiceHost: "{{ k3s_apiserver_endpoint }}"
k8sServicePort: {{ k3s_api_port }}
# Ingress via Gateway API — no Traefik (docs/09, ADR-0002).
@@ -59,6 +59,17 @@ k3s_server_mode: "secondary"
# serving cert on restart when this set changes. Deduplicated (the primary IP is
# also k3s_api_host).
#
# THIS LIST COVERS BOTH API ADDRESSES, WHICH IS WHY THE 2026-09-06 SPLIT NEEDED NO CERT
# CHANGE AND NO k3s RESTART. group_vars/all.yml now distinguishes k3s_api_host (the
# founder, for the cold join) from k3s_apiserver_endpoint (= kube_vip_address, what Cilium
# and every steady-state client dial). Both are already in this set, so repointing a
# consumer from one to the other cannot produce a TLS failure. VERIFIED LIVE 2026-09-06,
# not assumed: prod's apiserver answered through https://192.168.2.9:6443 with full CA
# verification and tls-server-name=192.168.2.9. Do not remove either entry — dropping
# kube_vip_address breaks every client of the VIP; dropping k3s_api_host breaks nothing
# today only because it is also in the k3s_servers_group node-IP list below, and that
# coincidence is not a contract.
#
# k3s_servers_group — NOT a literal group name — is what makes this role environment-
# agnostic (R-ENV-02): group_vars/all.yml sets it to `k3s_servers` (dev) and
# group_vars/k3s_prod/vars.yml to `k3s_prod`, so each environment SANs its own servers.
@@ -155,6 +155,18 @@
| default(k3s_primary_token_raw.content | b64decode | trim, true) }}
when: k3s_server_mode == 'secondary'
# THE JOIN TARGET IS k3s_api_host — THE FOUNDER — AND MUST NOT BECOME THE VIP.
# group_vars/all.yml splits the two API addresses (k3s_api_host = the founder's own node IP,
# k3s_apiserver_endpoint = the kube-vip HA VIP) and this is the canonical founder-only
# consumer. On a COLD build the VIP does not exist at this point in the sequence: kube-vip
# is a k3s auto-deploy manifest, so it cannot be applied until a cluster exists, and
# playbooks/site.yml only imports kube-vip.yml AFTER k3s.yml. A `--server` pointed at the
# VIP would therefore dial an address nothing announces and the cold build would be
# unjoinable — with no diagnostic beyond a connection timeout.
# On a WARM single-node rejoin (`--limit k3s-dev-N`) the founder is up and answering too, so
# the founder works in both cases and the VIP works in only one. Cilium's k8sServiceHost is
# the opposite trade (steady state, must survive losing the founder) and uses the endpoint
# variable instead.
- name: Install k3s secondary (join as server)
ansible.builtin.command:
cmd: >-
@@ -24,6 +24,16 @@ kube_vip_port: 6443
# only if detection is wrong.
kube_vip_interface: ""
# How long to wait for the VIP to actually ANSWER on kube_vip_port after the manifest is
# written (seconds). This is a real gate, not cosmetics: since 2026-09-06 Cilium's
# k8sServiceHost is this VIP (k3s_apiserver_endpoint), and playbooks/site.yml runs this role
# immediately before cilium.yml — so if the VIP never comes up, the run must stop HERE with
# a clear message rather than proceed to install a CNI pointed at an address nothing
# answers. On a cold cluster the budget covers k3s's deploy controller applying the
# manifest, the ghcr.io image pull and leader election; on an already-running cluster the
# check returns immediately.
kube_vip_wait_timeout: 300
# Leader-election tuning (seconds) — a snappy failover without thrashing.
kube_vip_lease_duration: 15
kube_vip_renew_deadline: 10
@@ -21,6 +21,14 @@
executable: /bin/bash
register: kube_vip_iface_detect
changed_when: false
# RUN THIS EVEN UNDER --check. It is `ip -o -4 addr show`: it reads and changes nothing.
# Without check_mode: false the shell module is SKIPPED in check mode, kube_vip_iface_detect
# has no stdout, and the assert two tasks down aborts the play with "Could not detect the
# interface ... set kube_vip_interface explicitly" — a misleading failure that says nothing
# about the node. That mattered less while this play was an out-of-band operator step; it
# matters now that playbooks/site.yml imports it, because `--check` on the bring-up before a
# cold prod build is exactly the rehearsal an operator should be able to run.
check_mode: false
- name: Resolve the kube-vip VIP interface (override wins, else detected)
ansible.builtin.set_fact:
@@ -52,3 +60,34 @@
owner: root
group: root
mode: "0600"
# PROVE THE VIP IS ACTUALLY UP BEFORE THIS PLAY RETURNS (added 2026-09-06).
#
# Templating the manifest is not the same as having a floating endpoint: k3s's deploy
# controller still has to apply it, the image still has to pull, and leader election still
# has to pick an owner. Nothing used to check, which was tolerable while the VIP was only an
# operator convenience. It is not tolerable now — Cilium's k8sServiceHost IS this VIP
# (k3s_apiserver_endpoint) and playbooks/site.yml runs cilium.yml straight after this play,
# so an unannounced VIP would mean installing a CNI that cannot reach the API server. That
# failure is the 2026-09-01 shape and it is very expensive to diagnose from the far side;
# failing here instead names the actual cause.
#
# run_once: the VIP is ONE address for the whole environment, so one probe answers for the
# environment. Probing from a server host (not the controller) is deliberate: the servers
# are on the VIP's own LAN in both environments, whereas the dev controller reaches dev's
# API only through a pfSense NAT — a controller-side probe would have been a property of
# where the play was launched from. READ-ONLY: it opens a TCP connection and changes nothing.
- name: Wait for the control-plane VIP to answer (the CNI's endpoint depends on it)
ansible.builtin.wait_for:
host: "{{ kube_vip_address }}"
port: "{{ kube_vip_port }}"
timeout: "{{ kube_vip_wait_timeout }}"
run_once: true
changed_when: false
vars:
ansible_become: false
# DELIBERATELY NOT check_mode: false, unlike the interface probe above — so a `--check`
# rehearsal SKIPS this and does not sit on a socket for kube_vip_wait_timeout. wait_for
# declares no check-mode support, so the skip is the module's own behaviour and this comment
# is here only so the skip does not read as an oversight. CONSEQUENCE, stated plainly: a
# `--check` run does NOT verify the VIP is up. Only a real run gates the CNI on it.
+8
View File
@@ -25,6 +25,14 @@ resources:
- ../platform/kyverno/policies/restrict-host-namespaces.yaml
- ../platform/kyverno/policies/require-egress-class-label.yaml
- ../platform/kyverno/policies/require-auth-mode-label.yaml
# COLD-START FIX (2026-09-06, prod): a MUTATE policy that must travel WITH the two label
# policies above. CDI generates its own short-lived worker pods (importer-*, uploader-*,
# cloner-*) inside app namespaces; nothing in git can label them, so both policies DENIED them
# and `DataVolume unifi/unifi-rootdisk` sat in ImportScheduled with no disk. This policy adds
# the two labels to pods created by ServiceAccount cdi/cdi-sa, so the requirement is SATISFIED
# rather than bypassed. Applying it here (not later) matters: if it lands after the validating
# policies, the next import is blocked in the gap.
- ../platform/kyverno/policies/label-cdi-worker-pods.yaml
- ../platform/kyverno/admission/secret-provenance.yaml
# cilium: L2 LB IP pool + announcement policy (cilium.io CRDs already registered by Cilium)
- cilium/l2-ip-pool.yaml
+30 -5
View File
@@ -10,7 +10,8 @@
#
# SOURCE OF TRUTH (do not diverge without updating both):
# infra/ansible/roles/cilium/templates/cilium-values.yaml.j2
# infra/ansible/roles/cilium/defaults/main.yml (cilium_version, k3s_api_host/port)
# infra/ansible/roles/cilium/defaults/main.yml (cilium_version)
# infra/ansible/inventory/group_vars/all.yml (k3s_apiserver_endpoint, k3s_api_port)
#
# Every value tagged [parity] below is asserted identical to the Ansible render. If you change one
# here, change it in the Ansible role in the same PR. (docs/02 Cilium-ownership contract.)
@@ -45,11 +46,35 @@ spec:
# [parity] MUST equal Ansible: kubeProxyReplacement: true
kubeProxyReplacement: true
# [parity] MUST equal Ansible: k8sServiceHost/k8sServicePort = the k3s API endpoint
# (k3s_api_host/k3s_api_port). This is the primary control-plane node IP.
# (**k3s_apiserver_endpoint** / k3s_api_port, infra/ansible/inventory/group_vars/all.yml).
# Setting these wrong breaks Cilium's connection to the API server on adopt.
# ${K3S_API_HOST} (cluster-vars, R-ENV-02): dev 192.168.1.50 | prod set in clusters/prod.
# The `platform` Flux Kustomization substitutes it; the Ansible side is already parameterized
# from inventory (k3s_api_host), so the parity contract holds per-environment, not per-literal.
#
# THIS IS THE CONTROL-PLANE VIP (kube-vip), NOT A NODE ADDRESS — operator decision 2026-09-06.
# ${K3S_API_HOST} (cluster-vars, R-ENV-02): dev 192.168.1.49 | prod 192.168.2.9, each equal to
# that environment's kube_vip_address. The knob's NAME still says "host"; read it as "the API
# host Cilium dials", and see clusters/base/cluster-vars.yaml for why it was not renamed.
#
# WHY, in one line: this value used to be the PRIMARY NODE's IP, so on a 3-server HA cluster the
# CNI's control-plane path depended on one machine. Verified on live prod 2026-09-06 — every
# cilium-agent carried KUBERNETES_SERVICE_HOST=192.168.2.10 (k3s-prod-1) while kube-vip held .9.
# Losing that node does not break the datapath (Cilium keeps serving from cache); it silently
# stops every service and policy update from ever landing, which is worse to detect.
#
# [parity] IS NOW AGAINST k3s_apiserver_endpoint AND NOT k3s_api_host. Those were one Ansible
# variable until 2026-09-06 and the conflation is the defect. k3s_api_host still exists and
# still holds the FOUNDER's own address, because roles/k3s_server's secondary
# `--server https://<host>:6443` join must target a host that is already up — on a COLD build
# no VIP exists yet. So: founder for the join, VIP for the CNI. If you change this line, change
# cilium-values.yaml.j2 in the same PR, and point it at the SAME variable.
#
# The `platform` Flux Kustomization substitutes it; the Ansible side is parameterized from
# inventory (k3s_apiserver_endpoint derives from kube_vip_address), so the parity contract holds
# per-environment, not per-literal.
#
# NEEDS NO CERT WORK: k3s_tls_sans has always carried kube_vip_address alongside every node IP,
# so both addresses are already SANs on the serving cert (verified live 2026-09-06 — prod
# answers through https://192.168.2.9:6443 under full CA verification, no insecure skip). This
# switch reissues nothing and restarts no apiserver.
k8sServiceHost: "${K3S_API_HOST}"
k8sServicePort: 6443
# --- Gateway API (ingress; replaces Traefik) — docs/09, ADR-0002 ---
+7 -3
View File
@@ -6,16 +6,20 @@
#
# SOURCE OF TRUTH (all [parity] fields MUST equal these):
# infra/ansible/roles/cilium/templates/cilium-values.yaml.j2
# infra/ansible/roles/cilium/defaults/main.yml (cilium_version: 1.20.1, k3s_api_host/port)
# infra/ansible/roles/cilium/defaults/main.yml (cilium_version: 1.20.1)
# infra/ansible/inventory/group_vars/all.yml (k3s_apiserver_endpoint = the kube-vip VIP,
# k3s_api_port) — NOT k3s_api_host, which is the
# founder's own address and bootstrap-only
#
# chart version (helmrelease.yaml chart.spec.version): 1.20.1 # [parity] = cilium_version
# [parity] k3s kube-proxy disabled → Cilium replaces it (ADR-0001/0002)
kubeProxyReplacement: true
# [parity] = the k3s API endpoint (primary control-plane node IP) + port.
# [parity] = the k3s API endpoint + port. THE CONTROL-PLANE VIP (kube-vip), not the primary node —
# changed 2026-09-06; the Ansible half is k3s_apiserver_endpoint, NOT k3s_api_host.
# Mirrors the HelmRelease's ${K3S_API_HOST} cluster-vars token (R-ENV-02). This file is NOT a
# kustomize resource, so nothing substitutes it — the token is shown with its dev value beside it.
k8sServiceHost: "${K3S_API_HOST}" # dev: 192.168.1.50
k8sServiceHost: "${K3S_API_HOST}" # the CONTROL-PLANE VIP — dev: 192.168.1.49 | prod: 192.168.2.9
k8sServicePort: 6443
# [parity] ingress via Gateway API, no Traefik (docs/09)
gatewayAPI:
+21 -2
View File
@@ -22,14 +22,19 @@ platform/kyverno/
│ ├── disallow-plaintext-secrets.yaml # R-SEC-01 (CI-only: sops block required)
│ ├── restrict-host-namespaces.yaml # R-SEC-02 (+R-NET-01 bypass guard)
│ ├── require-egress-class-label.yaml # R-NET-05
│ └── require-auth-mode-label.yaml # R-IDP-02
│ ├── require-auth-mode-label.yaml # R-IDP-02
│ └── label-cdi-worker-pods.yaml # R-NET-05+R-IDP-02 (mutate: CDI's own worker pods)
├── servicedefinition/ # ServiceDefinition shape validation (kyverno-json)
│ ├── validate-servicedefinition.yaml # R-GITOPS-02
│ ├── payloads/ (valid-* / invalid-*) # pass & fail fixtures
│ └── README.md
├── tests/ # `kyverno test` suite — runnable L0 tests NOW, no cluster
│ ├── kyverno-test.yaml # policies × fixtures × expected results
│ └── resources/ (good-* / bad-* fixtures + generated golden)
│ ├── resources/ (good-* / bad-* fixtures + generated golden)
│ └── controller-worker-pods/ # the CDI-worker mutation, proven BOTH ways
│ ├── kyverno-test.yaml # 2 Tests: cdi-sa requester vs ordinary requester
│ ├── userinfo-cdi-sa.yaml / userinfo-ordinary.yaml
│ └── resources/ + patched/ # real + FORGED importer pods; expected patch
├── admission/ # in-cluster enforcing bundle (scaffolding, T-2.7)
│ ├── namespace.yaml · helmrelease.yaml · kustomization.yaml
│ ├── secret-provenance.yaml # R-SEC-01 admission variant (provenance)
@@ -47,6 +52,7 @@ platform/kyverno/
| `restrict-host-namespaces` | `disallow-host-namespaces`, `disallow-privileged-containers` | **R-SEC-02** (+R-NET-01) | docs/07 least reach | App pods can't use hostNetwork/PID/IPC or privileged (would bypass default-deny) |
| `require-egress-class-label` | `require-egress-class` | **R-NET-05** | docs/03, docs/13 | App pods must declare `egress-class` ∈ {internet,vpn} |
| `require-auth-mode-label` | `require-auth-mode` | **R-IDP-02** | docs/13, docs/15 | App pods must declare `auth-mode` ∈ {oidc,forward-auth,native,none} |
| `label-cdi-worker-pods` (mutate) | `add-worker-pod-labels` | **R-NET-05**, **R-IDP-02** | docs/03, docs/13 | CDI's **controller-generated** worker pods (`importer-*`/`uploader-*`/`cloner-*`, created by SA `cdi/cdi-sa`) get `egress-class: internet` + `auth-mode: none` **added**, so they satisfy the two policies above instead of being exempted from them. Matched on the **generating ServiceAccount**, never a pod-name prefix |
| `validate-servicedefinition` (kyverno-json) | shape / dependencies / storage | **R-GITOPS-02** | docs/13 (+03,15) | ServiceDefinition is schema/invariant valid before render; public⇒not `none` auth |
| `admission/secret-provenance` | `secrets-must-be-flux-managed` | **R-SEC-01** | docs/07 | **Admission-only** variant: app-ns Secrets must come from Flux/SOPS (see below) |
@@ -90,6 +96,19 @@ self-contained — no cluster, no external state (reproducibility contract, R-TE
- **Label keys are a proposed contract** (`labels.md`) shared with WS-NET / WS-SEC /
WS-GITOPS. Values are spec-fixed; keys need owner sign-off (coordination-protocol §2).
- **Controller-generated pods are a cold-start hazard.** A policy that matches *any* Pod in an
app namespace also matches pods that no manifest in git authors. Prod hit this on 2026-09-06:
`require-auth-mode-label` + `require-egress-class-label` denied CDI's own `importer-prime-*`
pod, so `DataVolume unifi/unifi-rootdisk` stuck in `ImportScheduled` and the UniFi VM had no
disk. Fix: `policies/label-cdi-worker-pods.yaml` **mutates** those pods to carry truthful
labels (matched on the generating ServiceAccount `cdi/cdi-sa`), rather than excluding them.
`virt-launcher-*` pods need nothing — they inherit the VM pod-template labels. KubeVirt
hotplug (`hp-volume-*`) and export (`virt-export-*`) pods do **not** inherit them and are
unused here; extend the same policy if either is adopted.
- **`PolicyException` is NOT usable in this install**: the Kyverno admission/background/reports
controllers all run `--enablePolicyException=false` (chart default, verified on prod
2026-09-06). The CRD exists (from the pre-applied CRD bundle) so a `PolicyException` would
APPLY cleanly and be silently ignored — a policy hole that looks like a fix and isn't.
- **Secrets CI vs admission divergence** is deliberate and documented in
`admission/README.md` and `policies/disallow-plaintext-secrets.yaml`.
- The ServiceDefinition JSON Schema (WS-GITOPS T-0.3) is the complementary structural
@@ -13,6 +13,10 @@ resources:
- ../policies/restrict-host-namespaces.yaml
- ../policies/require-egress-class-label.yaml
- ../policies/require-auth-mode-label.yaml
# mutate: gives CDI's OWN generated worker pods (importer-*/uploader-*/cloner-*) the two
# labels the policies above require -- they are controller-generated, so nothing in git can
# label them. Ships with them, never separately.
- ../policies/label-cdi-worker-pods.yaml
# --- secrets: the admission variant REPLACES the CI-only sops-block policy ---
# (../policies/disallow-plaintext-secrets.yaml is CI-only; see secret-provenance.yaml)
- secret-provenance.yaml
+11
View File
@@ -15,6 +15,17 @@ Shared contract with WS-NET (egress rendering), WS-SEC (auth), and WS-GITOPS (re
| `homelab.keithjackson.dev/baseline` | NetworkPolicy | `default-deny` | (convention) identifies the baseline NP | `require-default-deny-baseline` (generate), `validate-default-deny-shape` |
| `homelab.keithjackson.dev/secret-managed-by` | Secret | `controller` | (convention) exempts controller-generated Secrets | `disallow-plaintext-secrets` (exclude), admission `secret-provenance` |
## Controller-generated pods (who sets the labels when git cannot)
`egress-class` / `auth-mode` are normally projected onto pod templates by the renderer (below).
Some pods are generated by a **controller at runtime** and therefore have no manifest in git to
label — CDI's `importer-*` / `uploader-*` / `cloner-*` worker pods are the live example: both
label policies denied CDI's importer on prod (2026-09-06) and the UniFi VM got no disk. For those,
`policies/label-cdi-worker-pods.yaml` **adds** the labels at admission (`+(…)` add-if-absent),
matched on the **generating ServiceAccount** (`cdi/cdi-sa`) — never on a pod-name prefix or on
CDI's own labels, both of which any pod author in the namespace can copy. `virt-launcher-*` needs
nothing: KubeVirt propagates the VM pod-template labels onto it (verified on dev).
## Rendering expectation (for WS-GITOPS)
The ServiceDefinition (`docs/13`) declares intent — `egress:` and `auth.mode:` — at the
@@ -0,0 +1,136 @@
# Serves: R-NET-05 (egress is a declared property) + R-IDP-02 (auth mode is declared) —
# this policy does NOT weaken either requirement. It makes the one class of pod that
# CANNOT carry the labels from git SATISFY them, instead of being exempted from them.
#
# THE DEFECT IT FIXES (observed on LIVE prod, 2026-09-05/06):
# `DataVolume unifi/unifi-rootdisk` sat in ImportScheduled for hours holding a detached
# 40Gi `prime-…` scratch PVC. `kubectl -n cdi logs deploy/cdi-deployment` showed:
# admission webhook "validate.kyverno.svc-fail" denied the request: resource
# Pod/unifi/importer-prime-<uid> was blocked due to the following policies
# require-auth-mode-label / require-egress-class-label
# CDI generates its own short-lived worker pods (importer-*, uploader-*, cloner-*/
# clone-source-*) from inside the cdi-deployment controller. Those pods are not in git,
# so nothing can put the platform labels on them, and both label policies match ANY Pod
# in a namespace labelled homelab.keithjackson.dev/app-namespace=true. Result: the VM
# never gets a disk. This is a COLD-START defect, not a prod quirk — dev's identical
# import Succeeded before the policies were enforcing, so dev has never exercised it and
# would hit it on any rebuild.
#
# WHY MUTATE (and not an exception/exclusion):
# The honest reading of R-NET-05/R-IDP-02 is "every pod's egress path and auth posture is
# DECLARED". A CDI importer pod has truthful values for both:
# egress-class: internet — it pulls the image from the public internet over https
# (cloud-images.ubuntu.com / quay.io) and must take the
# default WAN path, which is exactly what Cilium's egress
# gateway does for `internet` (ADR-0013/ADR-0015). It is NOT
# a `vpn` workload.
# auth-mode: none — the pod serves no UI and terminates when the import ends;
# there is nothing to put an IdP in front of. docs/13 permits
# `none` for internal, non-public workloads (the
# ServiceDefinition policy forbids only public + none).
# So the requirement is SATISFIED rather than bypassed: the invariant "every pod in an app
# namespace carries both labels" stays literally true cluster-wide, both label policies
# stay untouched (no `exclude`, no PolicyException, background scanning still on), and the
# labels are functional — the pod is now selectable by the Cilium egress fabric instead of
# being an unlabelled pod that silently falls through to the default path.
#
# THE MATCH IS THE GENERATING ServiceAccount, NOT A NAME PREFIX:
# `subjects: ServiceAccount cdi/cdi-sa` is the identity in the AdmissionReview's userInfo —
# the controller that issued the CREATE. Verified on prod from the Kyverno admission log of
# the blocked request:
# user={"username":"system:serviceaccount:cdi:cdi-sa", ...} roles=["cdi:cdi-deployment"]
# name=importer-prime-be3f9d1c-… namespace=unifi operation=CREATE
# A pod NAME (`importer-*`) or CDI's own labels (`cdi.kubevirt.io`) are attacker-CHOOSABLE:
# anyone who can create a pod in the namespace can name it `importer-prime-x` and copy the
# labels, and would then inherit the exemption. The requesting ServiceAccount cannot be
# chosen by the pod author — only by someone who already holds cdi-sa's token, which already
# confers "create any pod in any namespace" cluster-wide. So this adds no reachable
# privilege. It is also VERSION-ROBUST: it covers every CDI worker kind (importer, uploader,
# cloner/clone-source) without enumerating names that change between CDI releases —
# confirmed on prod that cdi-sa is the ONLY cdi-namespace ServiceAccount that can create
# pods (`kubectl auth can-i create pods -n unifi --as …`: cdi-sa yes; cdi-apiserver no;
# cdi-uploadproxy no).
#
# DELIBERATELY NOT COVERED — KubeVirt's own generated pods:
# virt-launcher-* pods INHERIT the VM's pod-template labels, so a VM authored in this repo
# already passes (verified on dev: virt-launcher-unifi-22dg7 carries egress-class=internet,
# auth-mode=native from apps/vms/unifi/30-virtualmachine.yaml). Exempting
# kubevirt-controller would REMOVE that useful enforcement on VM authors, so it is not done.
# KubeVirt's hotplug (`hp-volume-*`) and export (`virt-export-*`) pods do NOT inherit those
# labels, but nothing in this repo uses volume hotplug or VirtualMachineExport; if either is
# adopted, extend this policy then — with the same ServiceAccount-scoped shape.
#
# OPERATOR NOTE — this is the cluster's FIRST resource-MUTATING policy. Verified on prod
# 2026-09-06 that `kyverno-resource-mutating-webhook-cfg` currently holds 0 webhooks; with the
# chart's `autoUpdateWebhooks=true` Kyverno registers `mutate.kyverno.svc-fail` for Pods within
# seconds of this policy being applied. Prod runs `forceFailurePolicyIgnore=false`, so that
# webhook is failurePolicy: Fail — the same posture as the validating webhook that is ALREADY in
# the path for these pods, so no new fail-open surface and no new blocking surface. CDI retries
# the importer pod on a loop, so the stuck import proceeds once the policy lands (the detached
# `prime-…` scratch PVC left behind by the blocked attempts is a separate operator cleanup).
#
# RESIDUAL TRADE-OFF (state it plainly, it is reversible by deleting this file):
# Anything created by `cdi:cdi-sa` in an app namespace now gets `egress-class: internet` +
# `auth-mode: none` supplied for it instead of being rejected for not declaring them. Whoever
# holds cdi-sa's token can therefore run a pod in an app namespace without declaring its egress
# class. That identity can already create arbitrary pods in every namespace (ClusterRole `cdi`:
# pods create/delete cluster-wide), so it is not a new capability — but the declaration is now
# assumed rather than demanded for that one identity. Nothing else changes: the pod is still
# subject to restrict-host-namespaces, the namespace default-deny baseline, and every other
# policy, and `internet` is the LEAST-reach of the two egress classes (it does not grant the VPN
# path).
#
# PROOF (offline, no cluster — platform/kyverno/tests/controller-worker-pods/):
# (a) a CDI importer pod created by cdi:cdi-sa is mutated and then PASSES both policies;
# (b) the SAME namespace's ordinary pod — including one that FORGES the importer name and
# CDI's labels — is NOT mutated and is still DENIED by both policies.
apiVersion: kyverno.io/v1
kind: ClusterPolicy
metadata:
name: label-cdi-worker-pods
annotations:
policies.kyverno.io/title: Label CDI-generated worker pods
policies.kyverno.io/category: Network Isolation
policies.kyverno.io/severity: medium
homelab.keithjackson.dev/requirements: R-NET-05,R-IDP-02
policies.kyverno.io/description: >-
Adds homelab.keithjackson.dev/egress-class=internet and auth-mode=none to the
short-lived worker Pods that the CDI controller (ServiceAccount cdi/cdi-sa)
generates in application namespaces, so they satisfy require-egress-class-label
and require-auth-mode-label instead of being exempted from them.
spec:
# No validationFailureAction: this is a MUTATE policy, there is nothing to fail.
# background MUST be false: `match.subjects` is userInfo, which exists only on an
# AdmissionReview. Kyverno rejects a userInfo match with background scanning enabled
# ("invalid variable used at path ... policy contains 'userInfo'"), and a background scan
# of an already-created pod has no requester to match anyway.
background: false
rules:
- name: add-worker-pod-labels
match:
# One filter entry: the resource conditions AND the subject must both match.
all:
- resources:
kinds:
- Pod
operations:
- CREATE
namespaceSelector:
matchLabels:
homelab.keithjackson.dev/app-namespace: "true"
subjects:
# The CDI controller (cdi-deployment) ServiceAccount — the identity that
# CREATEs importer-*/uploader-*/cloner-* pods. Not the pods' own SA.
- kind: ServiceAccount
namespace: cdi
name: cdi-sa
mutate:
patchStrategicMerge:
metadata:
labels:
# `+(key)` is Kyverno's ADD-IF-ABSENT anchor: an explicit value already on the
# pod is never overwritten (so a future CDI worker that legitimately needs
# egress-class: vpn can be given it, and virt-launcher-style inherited labels
# would survive).
+(homelab.keithjackson.dev/egress-class): internet
+(homelab.keithjackson.dev/auth-mode): none
@@ -0,0 +1,91 @@
# L0 policy-as-code suite for the CDI worker-pod label mutation — runs in CI WITHOUT a cluster
# (discovered recursively by the gate's `kyverno test platform/kyverno`; ci/l0.sh).
#
# WHY A SEPARATE SUITE from ../kyverno-test.yaml: a `kyverno test` manifest carries ONE
# `userinfo`, and the whole point here is that the SAME pods get different outcomes for
# different requesters. Two Test documents, two identities, one file:
# 1. cdi-controller-worker-pods-admitted (requester = cdi/cdi-sa) -> mutated, ADMITTED
# 2. cdi-worker-exemption-is-narrow (requester = ordinary user) -> not mutated, DENIED
# Keeping the mutate policy OUT of ../kyverno-test.yaml is deliberate: that suite declares no
# userinfo, and with no userinfo the offline engine does not discriminate on `subjects`, which
# would silently turn its negative (result: fail) rows into passes.
apiVersion: cli.kyverno.io/v1alpha1
kind: Test
metadata:
name: cdi-controller-worker-pods-admitted
# Namespace labels for offline namespaceSelector resolution (shared with the main suite).
variables: ../values.yaml
userinfo: userinfo-cdi-sa.yaml
policies:
- ../../policies/label-cdi-worker-pods.yaml
- ../../policies/require-egress-class-label.yaml
- ../../policies/require-auth-mode-label.yaml
resources:
- ../resources/namespaces.yaml
- resources/cdi-worker-pods.yaml
results:
# ---- the mutation fires for the CDI controller and adds exactly the two labels ----
- policy: label-cdi-worker-pods
rule: add-worker-pod-labels
kind: Pod
resources:
- importer-prime-be3f9d1c-c3ce-455a-a450-3d9e95c7baa2
patchedResources: patched/importer-mutated.yaml
result: pass
# ---- R-NET-05 + R-IDP-02: the mutated CDI worker pod now SATISFIES both policies, so the
# import CDI could not start is admitted. (The engine validates the mutated resource.)
- policy: require-egress-class-label
rule: require-egress-class
kind: Pod
resources:
- importer-prime-be3f9d1c-c3ce-455a-a450-3d9e95c7baa2
result: pass
- policy: require-auth-mode-label
rule: require-auth-mode
kind: Pod
resources:
- importer-prime-be3f9d1c-c3ce-455a-a450-3d9e95c7baa2
result: pass
---
apiVersion: cli.kyverno.io/v1alpha1
kind: Test
metadata:
name: cdi-worker-exemption-is-narrow
variables: ../values.yaml
userinfo: userinfo-ordinary.yaml
policies:
- ../../policies/label-cdi-worker-pods.yaml
- ../../policies/require-egress-class-label.yaml
- ../../policies/require-auth-mode-label.yaml
resources:
- ../resources/namespaces.yaml
- resources/cdi-worker-pods.yaml
results:
# ---- the mutation does NOT fire for an ordinary requester, not even for a pod that forges
# the importer's name and CDI's labels ----
- policy: label-cdi-worker-pods
rule: add-worker-pod-labels
kind: Pod
resources:
- importer-prime-be3f9d1c-c3ce-455a-a450-3d9e95c7baa2
- importer-prime-forged-by-an-app
- plain-app-pod-no-labels
result: skip
# ---- so every unlabelled pod in the SAME app namespace is still DENIED (R-NET-05) ----
- policy: require-egress-class-label
rule: require-egress-class
kind: Pod
resources:
- importer-prime-be3f9d1c-c3ce-455a-a450-3d9e95c7baa2
- importer-prime-forged-by-an-app
- plain-app-pod-no-labels
result: fail
# ---- ... and by R-IDP-02 ----
- policy: require-auth-mode-label
rule: require-auth-mode
kind: Pod
resources:
- importer-prime-be3f9d1c-c3ce-455a-a450-3d9e95c7baa2
- importer-prime-forged-by-an-app
- plain-app-pod-no-labels
result: fail
@@ -0,0 +1,16 @@
# Expected result of the mutation: CDI's own labels untouched, the two platform labels ADDED.
apiVersion: v1
kind: Pod
metadata:
name: importer-prime-be3f9d1c-c3ce-455a-a450-3d9e95c7baa2
namespace: app-ns
labels:
app: containerized-data-importer
cdi.kubevirt.io: importer
homelab.keithjackson.dev/egress-class: internet
homelab.keithjackson.dev/auth-mode: none
spec:
restartPolicy: OnFailure
containers:
- name: importer
image: quay.io/kubevirt/cdi-importer:v1.62.0
@@ -0,0 +1,53 @@
# Fixtures for the CDI-worker-pod label mutation (policies/label-cdi-worker-pods.yaml).
#
# All three pods live in `app-ns` (../resources/namespaces.yaml — carries
# homelab.keithjackson.dev/app-namespace: "true"), so all three are IN SCOPE of
# require-egress-class-label + require-auth-mode-label. What separates them is WHO creates
# them, which is the whole point of the mechanism: the two "forged" pods are byte-for-byte
# as CDI-looking as the real one.
#
# ---- (a) the REAL CDI worker pod: shape copied from the pod CDI actually tried to create on
# prod (name importer-prime-<pvc-uid>, CDI's own labels, no platform labels). It is
# created by ServiceAccount cdi/cdi-sa — see userinfo-cdi-sa.yaml.
apiVersion: v1
kind: Pod
metadata:
name: importer-prime-be3f9d1c-c3ce-455a-a450-3d9e95c7baa2
namespace: app-ns
labels:
app: containerized-data-importer
cdi.kubevirt.io: importer
# NOTE: no homelab.keithjackson.dev/* labels — CDI generates this pod itself, nothing in
# git can label it. This is exactly why the import was blocked.
spec:
restartPolicy: OnFailure
containers:
- name: importer
image: quay.io/kubevirt/cdi-importer:v1.62.0
---
# ---- (b) FORGED: an ordinary pod that copies the importer's NAME PREFIX and CDI's labels.
# Proves that a name-prefix or label-based exemption would have been walkable, and
# that this ServiceAccount-scoped one is not.
apiVersion: v1
kind: Pod
metadata:
name: importer-prime-forged-by-an-app
namespace: app-ns
labels:
app: containerized-data-importer
cdi.kubevirt.io: importer
spec:
containers:
- name: app
image: registry.example/app:1.0.0
---
# ---- (c) a plain unlabelled application pod in the SAME namespace. Must still be DENIED.
apiVersion: v1
kind: Pod
metadata:
name: plain-app-pod-no-labels
namespace: app-ns
spec:
containers:
- name: app
image: registry.example/app:1.0.0
@@ -0,0 +1,21 @@
# The requester identity Kyverno actually saw on prod when CDI created the importer pod
# (from the kyverno-admission-controller log of the blocked request, 2026-09-06):
# user={"username":"system:serviceaccount:cdi:cdi-sa","groups":["system:serviceaccounts",
# "system:serviceaccounts:cdi","system:authenticated"], ...}
# roles=["cdi:cdi-deployment"] clusterroles=["cdi", …]
# `kyverno test` feeds this to the engine as the AdmissionReview userInfo so
# `match.subjects` can be evaluated offline.
apiVersion: cli.kyverno.io/v1alpha1
kind: UserInfo
metadata:
name: cdi-controller
clusterRoles:
- cdi
roles:
- cdi:cdi-deployment
userInfo:
username: system:serviceaccount:cdi:cdi-sa
groups:
- system:serviceaccounts
- system:serviceaccounts:cdi
- system:authenticated
@@ -0,0 +1,16 @@
# An ORDINARY requester in the application namespace — the attacker/mistake case. Anything
# that is not cdi/cdi-sa: an app's own ServiceAccount, a human's kubectl, Flux.
# The mutation must NOT fire for this identity, so both label policies must still DENY —
# even for a pod that forged the importer's name and CDI's labels.
apiVersion: cli.kyverno.io/v1alpha1
kind: UserInfo
metadata:
name: ordinary-namespace-user
clusterRoles:
- edit
userInfo:
username: system:serviceaccount:app-ns:default
groups:
- system:serviceaccounts
- system:serviceaccounts:app-ns
- system:authenticated
+5 -2
View File
@@ -1,7 +1,10 @@
---
# ============================================================================
# Cilium Egress Gateway steering for `egress-class=vpn` pods — ADR-0015.
# Serves: R-NET-05, R-NET-06, R-NET-07.
# Serves: R-NET-04, R-NET-05, R-NET-06, R-NET-07.
# R-NET-04 added 2026-09-06: this file IS the R-NET-04 datapath — the rule that selects between the
# two egress paths. Omitting it made `run.sh --status` report R-NET-04 as "TEST-ONLY / impl none"
# even though the implementation is right here.
#
# ##########################################################################
# ## LIVE (2026-08-24): wired into kustomization.yaml, reconciled by Flux ##
@@ -35,7 +38,7 @@ kind: CiliumEgressGatewayPolicy
metadata:
name: vpn-egress-steering
annotations:
homelab.keithjackson.dev/requirements: R-NET-05,R-NET-06,R-NET-07
homelab.keithjackson.dev/requirements: R-NET-04,R-NET-05,R-NET-06,R-NET-07
homelab.keithjackson.dev/adr: ADR-0015
spec:
# --- Client selection (INVARIANTS 1 & 2) --------------------------------