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home-network-k3s-impl/apps/wave-0/gitea.yaml
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jakman85andClaude Opus 4.8 d34c639269 fix(oidc): make gitea + nextcloud OIDC login-source registration persist 
The Keycloak OIDC postStart registration for gitea and nextcloud ran but
never persisted, leaving `gitea admin auth list` empty and nextcloud's
user_oidc with "No providers configured" despite the apps installing/
enabling and the client secret being present.

Two distinct root causes, confirmed by running the registration manually
against the live warm pods:

- nextcloud: a QUOTING BUG, not a race. The OCC() wrapper runs
  `su -c "php occ $*"`, which word-split `--scope="openid email profile"`
  back into three tokens, so occ saw `email profile` as extra positional
  args -> "Too many arguments to user_oidc:provider" -> exit 1, swallowed
  by `|| echo failed`. Failed on EVERY boot. Fixed by running the provider
  call as ONE `su -c` with the scope single-quoted so www-data's shell
  keeps it a single argument; keep the OCC() wrapper only for single-token
  subcommands.
- gitea: a first-boot RACE. The direct `admin auth add-oauth` persists once
  the app/network is warm (verified live), but fired too early at postStart
  and its failure was swallowed (`|| echo ... >&2`, exit 0).

Hardening applied to both catalog sources (rendered into apps/wave-*):
- wait (bounded ~90s) for the Keycloak discovery doc to return HTTP 200;
- nextcloud also waits for `installed: true` AND `maintenance: false`;
- register idempotently (create-or-update) then VERIFY the source/provider
  actually persisted, retrying the whole cycle (guards exit-0-but-nothing-
  stuck);
- on give-up, log LOUDLY to stderr AND a marker file on the persistent
  volume (/data, /var/www/html) instead of swallowing — next failure is
  visible;
- never crashloop: missing-secret guard retained, break-glass local admin
  stays usable.

Co-Authored-By: Claude Opus 4.8 <[email protected]>
2026-08-27 17:41:54 -05:00

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---
# Namespace (trust zone; default-deny + policies apply)
apiVersion: v1
kind: Namespace
metadata:
name: gitea
labels:
homelab.keithjackson.dev/app-namespace: 'true'
gateway-access: shared
annotations:
homelab.keithjackson.dev/backup-policy: daily-offcluster
---
# Default-deny baseline (R-NET-01): deny all, allow only DNS
apiVersion: networking.k8s.io/v1
kind: NetworkPolicy
metadata:
name: default-deny
namespace: gitea
labels:
homelab.keithjackson.dev/baseline: default-deny
spec:
podSelector: {}
policyTypes:
- Ingress
- Egress
ingress: []
egress:
- to:
- namespaceSelector:
matchLabels:
kubernetes.io/metadata.name: kube-system
ports:
- protocol: UDP
port: 53
- protocol: TCP
port: 53
---
# PVC gitea-data (R-STATE)
apiVersion: v1
kind: PersistentVolumeClaim
metadata:
name: gitea-data
namespace: gitea
labels:
app.kubernetes.io/name: gitea
spec:
accessModes:
- ReadWriteOnce
storageClassName: longhorn
resources:
requests:
storage: 10Gi
---
# Deployment (R-PLAT-02)
apiVersion: apps/v1
kind: Deployment
metadata:
name: gitea
namespace: gitea
labels:
app.kubernetes.io/name: gitea
spec:
replicas: 1
strategy:
type: Recreate
selector:
matchLabels:
app.kubernetes.io/name: gitea
template:
metadata:
labels:
app.kubernetes.io/name: gitea
homelab.keithjackson.dev/egress-class: internet
homelab.keithjackson.dev/auth-mode: oidc
annotations:
homelab.keithjackson.dev/auth-mode: oidc
homelab.keithjackson.dev/auth-groups: platform-admins
spec:
containers:
- name: gitea
image: gitea/gitea:1.24.3
ports:
- containerPort: 3000
env:
- name: GITEA__security__INSTALL_LOCK
value: 'true'
- name: GITEA__security__SECRET_KEY
valueFrom:
secretKeyRef:
name: gitea-bootstrap
key: secret-key
- name: GITEA__server__DOMAIN
value: gitea.home.keithjackson.dev
- name: GITEA__server__ROOT_URL
value: https://gitea.home.keithjackson.dev/
- name: GITEA__actions__ENABLED
value: 'true'
- name: GITEA__actions__DEFAULT_ACTIONS_URL
value: github
- name: GITEA_ADMIN_USERNAME
valueFrom:
secretKeyRef:
name: gitea-bootstrap
key: admin-username
- name: GITEA_ADMIN_PASSWORD
valueFrom:
secretKeyRef:
name: gitea-bootstrap
key: admin-password
- name: GITEA_OIDC_CLIENT_SECRET
valueFrom:
secretKeyRef:
name: gitea-bootstrap
key: oidc-client-secret
- name: GITEA__oauth2_client__ENABLE_AUTO_REGISTRATION
value: 'true'
- name: GITEA__oauth2_client__ACCOUNT_LINKING
value: auto
- name: GITEA__oauth2_client__USERNAME
value: preferred_username
volumeMounts:
- name: data
mountPath: /data
lifecycle:
postStart:
exec:
command:
- /bin/sh
- -c
- "# Idempotent break-glass admin bootstrap. Runs alongside the gitea entrypoint\n# (which, with INSTALL_LOCK=true, headless-installs + migrates the DB on first\n# boot). Waits for the DB, then creates the admin only if it does not exist.\nset -u\nexport HOME=/data/git\ni=0\nuntil su-exec git gitea admin user list >/dev/null 2>&1; do\n i=$((i + 1))\n [ \"$i\" -ge 150 ] && { echo \"[gitea-bootstrap] DB not ready after wait; skipping\" >&2; exit 0; }\n sleep 2\ndone\nif su-exec git gitea admin user list --admin 2>/dev/null | awk 'NR>1{print $2}' | grep -qx \"$GITEA_ADMIN_USERNAME\"; then\n echo \"[gitea-bootstrap] admin '$GITEA_ADMIN_USERNAME' already present\"\nelse\n n=0\n until su-exec git gitea admin user create \\\n --username \"$GITEA_ADMIN_USERNAME\" \\\n --password \"$GITEA_ADMIN_PASSWORD\" \\\n --email \"[email protected]\" \\\n --admin --must-change-password=false; do\n n=$((n + 1))\n [ \"$n\" -ge 10 ] && { echo \"[gitea-bootstrap] admin create failed after retries\" >&2; break; }\n sleep 3\n done\n echo \"[gitea-bootstrap] created break-glass admin '$GITEA_ADMIN_USERNAME'\"\nfi\n# --- Keycloak OIDC login source (idempotent add-or-update; R-IDP-02/06) ---\n# Registers the confidential `gitea` client as the OAuth2 login source \"keycloak\" against the\n# homelab realm's discovery doc. The `groups` claim maps platform-admins -> Gitea admin\n# (--admin-group). Missing secret => skip (break-glass admin still works), so an unfilled\n# secret never crashes the pod.\n#\n# HARDENED (was a silent first-boot RACE): this step used to fire before the app/network was\n# ready and swallow its failure (|| echo ... >&2, exit 0), so SSO silently never registered.\n# Now it (1) waits \u2014 bounded, ~90s \u2014 for the Keycloak discovery doc to serve HTTP 200,\n# (2) registers (update-in-place if present, else create), (3) VERIFIES the source actually\n# persisted and retries the whole cycle, and (4) on give-up logs LOUDLY to stderr AND a marker\n# file on the persistent /data volume WITHOUT crashlooping the pod (break-glass admin stays\n# usable). The verify-then-retry loop is the real guarantee against \"exit 0 but nothing stuck\".\nGITEA_DISCOVERY_URL=https://keycloak.home.keithjackson.dev/realms/homelab/.well-known/openid-configuration\ngitea_oidc_fail() {\n echo \"[gitea-oidc] FAILED to register 'keycloak' login source: $1\" >&2\n { echo \"$(date -u +%Y-%m-%dT%H:%M:%SZ) [gitea-oidc] FAILED: $1\"; } >> /data/gitea-oidc-bootstrap.log 2>/dev/null || true\n}\nif [ -z \"${GITEA_OIDC_CLIENT_SECRET:-}\" ]; then\n echo \"[gitea-oidc] GITEA_OIDC_CLIENT_SECRET unset; skipping OIDC source (break-glass admin only)\"\nelse\n # (1) Wait up to ~90s for the Keycloak discovery doc to be reachable (HTTP 200).\n d=0; disc_ok=0\n while [ \"$d\" -lt 45 ]; do\n if [ \"$(curl -sS -o /dev/null -w '%{http_code}' --max-time 5 \"$GITEA_DISCOVERY_URL\" 2>/dev/null)\" = \"200\" ]; then\n disc_ok=1; break\n fi\n d=$((d + 1)); sleep 2\n done\n [ \"$disc_ok\" = 1 ] || gitea_oidc_fail \"Keycloak discovery endpoint not reachable (HTTP 200) within timeout\"\n # (2)+(3) Register (update-in-place or create) then VERIFY it persisted; retry the whole cycle.\n r=0; reg_ok=0\n while [ \"$r\" -lt 10 ]; do\n oidc_id=$(su-exec git gitea admin auth list 2>/dev/null | awk '$2==\"keycloak\"{print $1; exit}')\n if [ -n \"$oidc_id\" ]; then\n su-exec git gitea admin auth update-oauth --id \"$oidc_id\" \\\n --name keycloak --provider openidConnect --key gitea \\\n --secret \"$GITEA_OIDC_CLIENT_SECRET\" \\\n --auto-discover-url \"$GITEA_DISCOVERY_URL\" \\\n --scopes \"openid email profile\" --group-claim-name groups --admin-group platform-admins >/dev/null 2>&1 || true\n else\n su-exec git gitea admin auth add-oauth \\\n --name keycloak --provider openidConnect --key gitea \\\n --secret \"$GITEA_OIDC_CLIENT_SECRET\" \\\n --auto-discover-url \"$GITEA_DISCOVERY_URL\" \\\n --scopes \"openid email profile\" --group-claim-name\
\ groups --admin-group platform-admins >/dev/null 2>&1 || true\n fi\n # VERIFY: the \"keycloak\" source must actually be listed now (guards the exit-0-but-nothing-persisted race).\n if su-exec git gitea admin auth list 2>/dev/null | awk '$2==\"keycloak\"{f=1} END{exit !f}'; then\n reg_ok=1; break\n fi\n r=$((r + 1)); sleep 3\n done\n if [ \"$reg_ok\" = 1 ]; then\n echo \"[gitea-oidc] login source 'keycloak' registered and verified\"\n else\n gitea_oidc_fail \"add/update-oauth ran but the 'keycloak' source did not persist after retries\"\n fi\nfi\n"
volumes:
- name: data
persistentVolumeClaim:
claimName: gitea-data
---
# Service
apiVersion: v1
kind: Service
metadata:
name: gitea
namespace: gitea
labels:
app.kubernetes.io/name: gitea
spec:
selector:
app.kubernetes.io/name: gitea
ports:
- name: port-3000
port: 3000
targetPort: 3000
---
# CiliumNetworkPolicy gateway-ingress allow (R-NET-01/02): gitea-allow-gateway-ingress
apiVersion: cilium.io/v2
kind: CiliumNetworkPolicy
metadata:
name: gitea-allow-gateway-ingress
namespace: gitea
labels:
app.kubernetes.io/name: gitea
spec:
endpointSelector:
matchLabels:
app.kubernetes.io/name: gitea
ingress:
- fromEntities:
- ingress
toPorts:
- ports:
- port: '3000'
protocol: TCP
---
# CiliumNetworkPolicy world egress allow (egress class governs the path; R-NET-05): gitea-allow-internet-egress
apiVersion: cilium.io/v2
kind: CiliumNetworkPolicy
metadata:
name: gitea-allow-internet-egress
namespace: gitea
labels:
app.kubernetes.io/name: gitea
spec:
endpointSelector:
matchLabels:
app.kubernetes.io/name: gitea
egress:
- toEntities:
- world
---
# HTTPRoute gitea-3000 (R-TLS/R-DNS)
apiVersion: gateway.networking.k8s.io/v1
kind: HTTPRoute
metadata:
name: gitea-3000
namespace: gitea
labels:
app.kubernetes.io/name: gitea
annotations:
homelab.keithjackson.dev/auth-mode: oidc
homelab.keithjackson.dev/auth-groups: platform-admins
spec:
parentRefs:
- name: shared
namespace: gateway
sectionName: https
hostnames:
- gitea.home.keithjackson.dev
rules:
- matches:
- path:
type: PathPrefix
value: /
backendRefs:
- name: gitea
port: 3000
---
# ServiceMonitor (R-OBS-01)
apiVersion: monitoring.coreos.com/v1
kind: ServiceMonitor
metadata:
name: gitea
namespace: gitea
labels:
release: kube-prometheus-stack
app.kubernetes.io/name: gitea
spec:
selector:
matchLabels:
app.kubernetes.io/name: gitea
namespaceSelector:
matchNames:
- gitea
endpoints:
- port: metrics
interval: 30s
---
# PrometheusRule SLI alerts (R-OBS-01)
apiVersion: monitoring.coreos.com/v1
kind: PrometheusRule
metadata:
name: gitea-slis
namespace: gitea
labels:
release: kube-prometheus-stack
app.kubernetes.io/name: gitea
spec:
groups:
- name: gitea.slis
rules:
- alert: gitea-down
expr: up{job="gitea"} == 0
for: 5m
labels:
severity: critical
service: gitea
annotations:
summary: gitea is down
description: 'gitea has been unreachable for 5m (SLI: up).'
---
# Flux ImageRepository (R-UPD)
apiVersion: image.toolkit.fluxcd.io/v1beta2
kind: ImageRepository
metadata:
name: gitea
namespace: gitea
spec:
image: gitea/gitea
interval: 1h0m0s
---
# Flux ImagePolicy (R-UPD)
apiVersion: image.toolkit.fluxcd.io/v1beta2
kind: ImagePolicy
metadata:
name: gitea
namespace: gitea
annotations:
homelab.keithjackson.dev/update-channel: stable
homelab.keithjackson.dev/auto-rollback: 'true'
spec:
imageRepositoryRef:
name: gitea
policy:
semver:
range: '>=1.22.0 <2.0.0'
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