release v0.3.8: chart metadata + image tags

- Chart 0.2.3 -> 0.2.4, appVersion 0.2.1 -> 0.3.7 (metadata labels only;
  pod templates use selectorLabels, no statefulset churn)
- values-apollo image tags 0.3.7 -> 0.3.8 (backend+frontend roll once)

.gitea/job-image/Dockerfile

@@ -0,0 +1,14 @@
+# CI job image for the Gitea Actions runners.
+#
+# JS actions (actions/checkout, docker/build-push-action) execute INSIDE the
+# job container and need node; builds talk to the runner's daemon through the
+# mounted /var/run/docker.sock, so this image needs the docker CLI + buildx
+# but no daemon. Baking them in means jobs never download binaries at runtime:
+# download.docker.com and github.com releases are unreachable (connection
+# reset) from the cluster's network.
+#
+# Tagged as src.panahifar.ir/ahp/act-job:20 (node 20 / bookworm).
+FROM node:20-bookworm
+
+COPY --from=docker:27-cli /usr/local/bin/docker /usr/local/bin/docker
+COPY --from=docker:27-cli /usr/local/libexec/docker/cli-plugins/docker-buildx /usr/local/libexec/docker/cli-plugins/docker-buildx

.gitea/workflows/build-and-push.yaml

@@ -36,21 +36,28 @@ jobs:
         id: meta
         run: echo "version=${GITHUB_REF_NAME#v}" >> "$GITHUB_OUTPUT"
 
-      # The job container (node:20-bookworm) ships no docker CLI, and builds
-      # run against the runner host's daemon (docker-outside-of-docker), so
-      # the socket must be mounted by the runner config.
-      - name: Set up Docker CLI (not shipped in job container)
+      # Builds run docker-outside-of-docker through the runner-mounted
+      # /var/run/docker.sock. The apollo runner's job image (act-job:20,
+      # .gitea/job-image) already ships the docker CLI + buildx in system
+      # plugin paths; runners on other networks fall back to installing them
+      # at runtime (needs access to download.docker.com + github.com, and the
+      # plugin must land where docker looks with DOCKER_CONFIG set).
+      - name: Set up Docker CLI (preinstalled on apollo; install elsewhere)
         run: |
           set -eu
           if [ ! -S /var/run/docker.sock ]; then
-            echo "::error::/var/run/docker.sock is not mounted in the job container - add 'options: -v /var/run/docker.sock:/var/run/docker.sock' and 'valid_volumes: [/var/run/docker.sock]' under 'container:' in the act_runner config.yaml, then restart the runner."
+            echo "::error::/var/run/docker.sock is not mounted in the job container - the act_runner config must mount it (docker_host: \"\" auto-mounts it)."
             exit 1
           fi
+          if ! command -v docker >/dev/null 2>&1 || ! docker buildx version >/dev/null 2>&1; then
             curl -fsSL "https://download.docker.com/linux/static/stable/x86_64/docker-27.5.1.tgz" | tar xz --strip-components=1 -C /usr/local/bin docker/docker
-          mkdir -p /root/.docker/cli-plugins
+            mkdir -p /root/.docker/cli-plugins /usr/local/libexec/docker/cli-plugins
             curl -fsSL "https://github.com/docker/buildx/releases/download/v0.19.3/buildx-v0.19.3.linux-amd64" -o /root/.docker/cli-plugins/docker-buildx
-          chmod +x /root/.docker/cli-plugins/docker-buildx
+            cp /root/.docker/cli-plugins/docker-buildx /usr/local/libexec/docker/cli-plugins/docker-buildx
+            chmod +x /root/.docker/cli-plugins/docker-buildx /usr/local/libexec/docker/cli-plugins/docker-buildx
+          fi
           docker version
+          docker buildx version
 
       - name: Login to Gitea container registry
         uses: docker/login-action@v3

deploy/helm/pargar/Chart.yaml

@@ -2,8 +2,8 @@ apiVersion: v2
 name: pargar
 description: Pargar gated LMS - Go API, Next.js frontend, Postgres, Redis, S3-compatible storage
 type: application
-version: 0.2.3
-appVersion: "0.2.1"
+version: 0.2.4
+appVersion: "0.3.7"
 keywords:
   - lms
   - pargar

deploy/helm/pargar/templates/secret-data.yaml

@@ -8,7 +8,10 @@
 {{- else if and .Values.postgres.auth.password (not (hasPrefix "change-me" .Values.postgres.auth.password)) (ne .Values.postgres.auth.password "") }}
   {{- $pgPass = .Values.postgres.auth.password }}
 {{- else }}
-  {{- $pgPass = randAlphaNum 32 }}
+  {{- /* Fail loudly instead of silently minting a random password: under
+         Argo CD (helm template) `lookup` is always empty, and a random
+         value would diverge from the live service on every render. */}}
+  {{- fail "postgres.auth.password must be set: no existing pargar-postgres secret was found and .Values.postgres.auth.password is empty or a change-me placeholder" }}
 {{- end }}
 apiVersion: v1
 kind: Secret
@@ -30,7 +33,7 @@ stringData:
 {{- else if and .Values.redis.auth.password (not (hasPrefix "change-me" .Values.redis.auth.password)) (ne .Values.redis.auth.password "") }}
   {{- $rdPass = .Values.redis.auth.password }}
 {{- else }}
-  {{- $rdPass = randAlphaNum 32 }}
+  {{- fail "redis.auth.password must be set: no existing pargar-redis secret was found and .Values.redis.auth.password is empty or a change-me placeholder" }}
 {{- end }}
 apiVersion: v1
 kind: Secret
@@ -56,7 +59,7 @@ stringData:
 {{- else if and .Values.rustfs.auth.secretKey (not (hasPrefix "change-me" .Values.rustfs.auth.secretKey)) (ne .Values.rustfs.auth.secretKey "") }}
   {{- $secret = .Values.rustfs.auth.secretKey }}
 {{- else }}
-  {{- $secret = randAlphaNum 40 }}
+  {{- fail "rustfs.auth.secretKey must be set: no existing pargar-rustfs secret was found and .Values.rustfs.auth.secretKey is empty or a change-me placeholder" }}
 {{- end }}
 apiVersion: v1
 kind: Secret

deploy/helm/pargar/templates/servicemonitor.yaml

@@ -0,0 +1,29 @@
+{{- if .Values.backend.metrics.serviceMonitor.enabled }}
+apiVersion: monitoring.coreos.com/v1
+kind: ServiceMonitor
+metadata:
+  name: {{ include "pargar.fullname" . }}-backend
+  labels:
+    {{- include "pargar.labels" . | nindent 4 }}
+    app.kubernetes.io/component: backend
+spec:
+  selector:
+    matchLabels:
+      {{- include "pargar.selectorLabels" . | nindent 6 }}
+      app.kubernetes.io/component: backend
+  namespaceSelector:
+    matchNames:
+      - {{ .Release.Namespace }}
+  endpoints:
+    - port: http
+      path: /metrics
+      interval: {{ .Values.backend.metrics.serviceMonitor.interval | default "30s" }}
+      scheme: http
+      # /metrics answers 401 without it; Prometheus sends it as
+      # Authorization: Bearer <token>.
+      authorization:
+        type: Bearer
+        credentials:
+          name: {{ include "pargar.appSecretName" . }}
+          key: metrics-token
+{{- end }}

deploy/helm/pargar/values-apollo.yaml

@@ -11,7 +11,7 @@ backend:
   image:
     pullPolicy: IfNotPresent
     repository: pargar-backend
-    tag: 0.3.6
+    tag: 0.3.8
   metrics:
     serviceMonitor:
       enabled: true
@@ -41,7 +41,7 @@ frontend:
   image:
     pullPolicy: IfNotPresent
     repository: pargar-frontend
-    tag: 0.3.6
+    tag: 0.3.8
   podDisruptionBudget:
     enabled: false
   replicaCount: 2
@@ -58,7 +58,10 @@ global:
   # Images published by .gitea/workflows/build-and-push.yaml on tag push.
   imageRegistry: src.panahifar.ir/ahp
   publicUrl: https://pargar.panahifar.ir
-imagePullSecrets: []
+# Gitea packages are private: kubelet pulls need secret `gitea-pull`
+# (docker-registry secret for src.panahifar.ir, created in ns pargar).
+imagePullSecrets:
+  - name: gitea-pull
 ingress:
   enabled: true
   tls:

deploy/helm/pargar/values.yaml

@@ -25,6 +25,13 @@ backend:
     pullPolicy: IfNotPresent
   service:
     port: 8080
+  metrics:
+    # Prometheus Operator ServiceMonitor. /metrics is bearer-protected by
+    # METRICS_TOKEN, so the endpoint carries authorization credentials
+    # (pargar-app secret) instead of scraping anonymously.
+    serviceMonitor:
+      enabled: false
+      interval: 30s
   resources:
     requests:
       cpu: 50m