Files
home-network-k3s-impl/infra
jakman85andClaude Opus 5 7432012713 docs(prod): platform tier up 8/9 — and TWO blockers, one of them an armed footgun
Unsuspended prod's `platform` after pre-applying the Kyverno CRDs.
8/9 HelmReleases Ready, 76/76 pods Running (cert-manager, CNPG, Cilium,
Longhorn, kube-prometheus-stack, Loki, Alloy, external-dns). `platform` itself
is NOT Ready and the 10 downstream tiers stay blocked.

THE CRD PRE-APPLY WORKED and is now proven against a live API server: 22 CRDs
Established, a second run a clean no-op (rc=0), reproduced under the PINNED
toolchain (helm 3.16.0) matching the 3.20.0 run byte-for-byte. It also confirmed
the predicted failure mode: Kyverno's Deployments had 55 RESTARTS EACH over 4.5h
and stabilised within minutes of the apply — controllers with no API types.

BLOCKER 1 — Kyverno's Helm release is wedged in `uninstalling`. The install
timed out *because* of that crash loop; install.remediation.retries:3 then fired
an uninstall which ALSO timed out, leaving sh.helm.release.v1.kyverno.v1 at
status=uninstalling. helm-controller cannot advance from there, so `platform`
(wait: true) never goes Ready. The Deployments themselves are healthy at the
right chart version — this is stale Helm bookkeeping, not a broken workload.
Fix needs `helm uninstall` + `flux reconcile --force`; destructive, so NOT run
unattended. Safe here because prod carries no workloads and a cold install
proves the bootstrap path. The pre-applied CRDs live OUTSIDE the release and
survive the uninstall — precisely why the pre-apply is a separate step.

BLOCKER 2 — AND THIS ONE IS ARMED. Prod's external-dns Deployment runs
--policy=sync --registry=txt --domain-filter=keithjackson.dev WITH NO
--txt-owner-id. Absent that flag it defaults to `default` — the owner of ALL 36
of dev's TXT registry entries. Scaling it to 1 would claim dev's records and,
under policy: sync, DELETE THEM: the 2026-09-04 incident, exactly.

The repo is not at fault. helmrelease.yaml sets txtOwnerId from cluster-vars,
prod resolves it to `prod`, and the LIVE HelmRelease spec.values carries
txtOwnerId: "prod". Verified against the real chart: 1.21.1 with txtOwnerId:
prod renders --txt-owner-id=prod, so the key is right and an upgrade would fix
it. The fault is Helm/Flux STATE: `helm get values` shows the installed release
has policy and domainFilters but NO txtOwnerId — it predates c8c1d29 — while
helm-controller reports Ready=True, observedGeneration=3, and a history entry
whose configDigest EQUALS lastAttemptedConfigDigest. It believes it already
deployed the current config, so it will never upgrade on its own.

The only thing that prevented the incident was replicas=0 — manual drift from
the incident recovery, which any Helm upgrade resets to the chart default of 1.
That is not a guard, it is luck.

CONTAINED: `flux suspend helmrelease external-dns`, replicas left at 0. Costs
nothing (prod publishes no hostnames yet; app tiers suspended) and is reversible.
Remediation ordering matters and is documented: the naive resume + reconcile
--force adds the flag and starts the pod in ONE operation, leaving no window to
verify — a race whose failure mode is deleting dev's DNS. Pin replicas at 0,
confirm --txt-owner-id=prod in the live args, THEN scale.

Dev verified unharmed throughout: Cloudflare snapshotted before the unsuspend
and re-queried after — 57 records byte-for-byte identical, 36 TXT still
owner=default. Queried against the Cloudflare API, never a local resolver.

Refs R-GITOPS-01, R-ENV-02, R-SEC-01.

Co-Authored-By: Claude Opus 5 <[email protected]>
2026-09-04 23:54:33 -05:00
..

infra/ — node provisioning and the toolchain

OpenTofu (Proxmox VE) + cloud-init + Ansible bring up the 3-node k3s/Cilium dev cluster. Spec: ../home-network-k3s/docs/02-environments-and-provisioning.md.

Path What
tofu/ The "Create" stage: 3 cloud-init'd VMs on the Proxmox box (bpg/proxmox provider)
cloud-init/ First-boot baseline shipped as a Proxmox user-data snippet
ansible/ The "Baseline"/"Configure" stages: k3s HA, Cilium, kube-vip, the VPN egress gateway
devcontainer/ The pinned toolchain (tofu, ansible, sops, age, flux, kubectl, helm and the whole CI gate toolchain)
cluster.sh RETIRED — drove the old libvirt VMs; does not work against Proxmox
PHASE1-STATUS.md Current state of the cluster and how to reconnect to it
PHASE1-SCOPE.md Historical Phase-1 scoping doc (libvirt era — superseded)

Where the cluster actually lives

The dev cluster is not on this workstation. It runs on a Proxmox VE host; the nodes sit on the Proxmox LAN and are reached across a pfSense NAT:

Nodes k3s-dev-1/2/3 at 192.168.1.50/.51/.52 — 6 vCPU, 24 GiB, Debian 13, k3s v1.36.4
kube-API kube-vip VIP 192.168.1.49:6443, reached from the workstation via NAT 192.168.2.50:6443
Node SSH pfSense NAT 192.168.2.102:2250/2251/2252 → node :22 (Ansible only)
Ingress VIP 192.168.1.53 (Cilium L2, shared Gateway); .53–.60 reserved for LB VIPs

The earlier libvirt/KVM cluster on 10.73.0.0/24 is retired. Any doc or command referencing virsh, qemu:///system, or 10.73.0.x for the cluster is historical.