Text-only cleanup after the upgrade campaign. Updates stale version strings, prose, and comments to the verified current facts; no Kubernetes behavior or version pins changed except the kubectl toolchain bump (below). Verified facts applied: k3s v1.36.4+k3s1, Debian 13 trixie, Cilium 1.20.1 / Gateway API v1.6.1, Longhorn 1.12.1, node RAM 24 GiB, dedicated virtio2 SSD etcd disk per node, Velero chart 12.x / v1.18, Grafana 13.2.0. - Version strings across infra/ and platform/ READMEs + comments - kubectl toolchain 1.31.4 -> 1.36.4 (devcontainer/ci/conformance versions.env; 1.31 vs a 1.36 cluster exceeded the +-1 skew) - Retired-single-apps-Kustomization refs -> apps-wave-0/1/2 + apps-vms with per-wave SOPS decryption (flux/clusters docs + bootstrap.sh) - COMPLETED/historical banners on the three executed plan docs - Resolved TODO(WS-SEC) markers -> Renovate-maintained ranges - Appended dated DECISIONS-LOG entry (2026-08-30) superseding the 2026-08-26 LIVE STATE line Left as revalidation items (not blind-edited): external-snapshotter v8.2.0 vs 1.36, Cilium ext_authz/forward-auth relevance under 1.20.1, conformance ImageVolume feature-gate assertions under 1.36. Co-Authored-By: Claude Opus 4.8 <[email protected]>
platform/cilium
Cilium — CNI, kube-proxy replacement, Gateway API ingress, Egress Gateway, and Hubble.
- Governing ADR: ADR-0002 — CNI, network policy & ingress: Cilium + Gateway API
- Spec: docs/03 — Networking, docs/09 — DNS & Ingress
- Serves: R-NET-01..07, R-DNS-01, R-SEC-02
- Owner: WS-NET (bootstrap shared with WS-INFRA)
What this stub is
A Flux HelmRelease + HelmRepository stub with placeholder values. No cluster exists (Phase 0);
this does not reconcile. Cilium replaces k3s' bundled flannel + kube-proxy + Traefik
(ADR-0001/0002).
Bootstrap vs. GitOps (important)
Per docs/02, Cilium's initial
install is done by the Ansible k3s bootstrap (Phase 1, WS-INFRA), because a cluster needs a CNI
before Flux can run. This HelmRelease manages Cilium configuration thereafter. The Helm values
here MUST stay consistent with the Ansible bootstrap values (kubeProxyReplacement, k8sServiceHost,
k8sServicePort) — otherwise Flux and the bootstrap fight. Coordinate this contract with WS-INFRA.
TODO (later phases — not Phase 0)
- Phase 1 (WS-INFRA/WS-NET): align Helm values with the Ansible bootstrap; pin chart version.
- Phase 2 (WS-NET): default-deny network baseline; Egress Gateway policies; L2 announcement IP
pool +
CiliumL2AnnouncementPolicyfor the ingress VIP; Hubble metrics → kube-prometheus-stack. - Phase 3 (WS-NET): egress-class routing integration with the VPN gateway (ADR-0013).