Files
home-network-k3s-impl/clusters/dev/kustomization.yaml
T
jakman85andClaude Opus 4.8 d9a80e5350 phase2-prep: per-component no-secret rollout + component hardening (author-first)
Prep only — nothing deployed; running cluster untouched.

Reconciliation graph (operator-approved Option A): author clusters/dev/rollout/
= 4 per-component Flux Kustomizations (kyverno->cilium->longhorn->monitoring,
monitoring dependsOn longhorn). Dev overlay $patch:delete's the monolithic base
platform/apps and adds ./rollout, so only the no-secret tier reconciles; the
secret-blocked components are simply not created until hand-offs arrive. The
no-secret tier carries no SOPS content, so it needs no sops-age key. prod is
untouched (still builds the monolith). Convergence path coded in (delete rollout/
+ the two deletes) — R-ENV-02 divergence flagged for architect review.

Component hardening via cluster-vars (prod keeps strict posture):
- KYVERNO_VALIDATION_ACTION Enforce->Audit(dev), _WEBHOOK_FAILURE_POLICY
  Fail->Ignore(dev), _ADMISSION_REPLICAS 3->1(dev); webhook namespaceSelector
  excludes system+platform namespaces.
- MONITORING_STORAGE_CLASS var; GRAFANA_ADMIN_SECRET var (dev ''=chart default);
  Alertmanager SMTP/secret deferred to Phase-4 with verbatim re-enable markers.

Cilium parity verified against the live CNI (no-op adopt). Validated:
kubectl kustomize dev/prod/all-components, envsubst->YAML parse, make -C ci gate PASS.

Co-Authored-By: Claude Opus 4.8 (1M context) <[email protected]>
2026-08-16 21:34:57 -05:00

101 lines
4.0 KiB
YAML

---
# clusters/dev — the ACTIVE build target overlay.
#
# `flux bootstrap ... --path=clusters/dev` points the dev cluster's Flux here.
# TRANSITIONAL (Phase-2 bootstrap): this overlay reuses the base source + cluster-vars, but
# REPLACES the monolithic base `platform`/`apps` Kustomizations with a per-component NO-SECRET
# rollout (./rollout) — so dev brings up cilium/longhorn/monitoring/kyverno in order WITHOUT
# dragging in the secret-blocked components. It patches cluster-vars with dev values (R-ENV-02)
# and softens Kyverno for bootstrap. CONVERGENCE: delete ./rollout + the two $patch:delete
# below to return to the unified base graph once all operator hand-offs land. See DECISIONS-LOG.
apiVersion: kustomize.config.k8s.io/v1beta1
kind: Kustomization
resources:
- ../base
- rollout
patches:
# --- Drop the monolithic base platform/apps Kustomizations. They reconcile ALL 11 components
# as one unit (incl. secret-blocked cert-manager/externaldns/velero/keycloak/oauth2-proxy/
# image-automation/gateway/kubevirt); ./rollout replaces them with the per-component
# no-secret set for dev bootstrap. Remove these two deletes to re-adopt the unified graph.
# (No decryption patch is needed here: the rollout components carry no SOPS content, so
# the `sops-age` Secret is not required for the dev bootstrap tier.) ---
- patch: |-
$patch: delete
apiVersion: kustomize.toolkit.fluxcd.io/v1
kind: Kustomization
metadata:
name: platform
namespace: flux-system
- patch: |-
$patch: delete
apiVersion: kustomize.toolkit.fluxcd.io/v1
kind: Kustomization
metadata:
name: apps
namespace: flux-system
- patch: |-
apiVersion: source.toolkit.fluxcd.io/v1
kind: GitRepository
metadata:
name: flux-system
namespace: flux-system
spec:
# Phase-1 bootstrap source: a single Gitea container on the HOST (bootstrap/gitea/),
# reachable from the cluster on the k3s-dev NAT gateway. PUBLIC repo => Flux needs no
# creds (NAT-only). Phase 6 cutover -> in-cluster gitea.home.keithjackson.dev (docs/05).
url: http://10.73.0.1:3000/Home-Network/home-network-k3s-impl.git
ref:
branch: main
# --- dev-scoped cluster-vars (R-ENV-02) ---
- target:
kind: ConfigMap
name: cluster-vars
patch: |-
- op: replace
path: /data/CLUSTER_ENV
value: "dev"
# DNS-01 against LE staging while iterating (avoids prod rate limits) — ADR-0006.
- op: replace
path: /data/ACME_CLUSTER_ISSUER
value: "letsencrypt-staging"
# dev mirrors prod's 3-node topology, so the replicated tier keeps 3 replicas.
- op: replace
path: /data/LONGHORN_DEFAULT_REPLICA_COUNT
value: "3"
# smaller retention / volumes to keep the dev workstation footprint light.
- op: replace
path: /data/MONITORING_PROMETHEUS_RETENTION
value: "3d"
- op: replace
path: /data/MONITORING_PROMETHEUS_PVC_SIZE
value: "5Gi"
- op: replace
path: /data/MONITORING_LOKI_PVC_SIZE
value: "5Gi"
# single-replica control-plane addons in dev (no HA needed to iterate).
- op: replace
path: /data/KEYCLOAK_REPLICAS
value: "1"
- op: replace
path: /data/OAUTH2_PROXY_REPLICAS
value: "1"
- op: replace
path: /data/VELERO_RETENTION
value: "72h"
# dev-softened Kyverno for cold-start (base defaults Enforce/Fail/3 = prod posture).
- op: replace
path: /data/KYVERNO_VALIDATION_ACTION
value: "Audit"
- op: replace
path: /data/KYVERNO_WEBHOOK_FAILURE_POLICY
value: "Ignore"
- op: replace
path: /data/KYVERNO_ADMISSION_REPLICAS
value: "1"
# dev: no Grafana admin Secret yet → empty makes the chart use its default admin password
# (dev-only, NAT-isolated). Prod keeps the by-name SOPS secret from the base default.
- op: replace
path: /data/GRAFANA_ADMIN_SECRET
value: ""