feat: deploy to Frostmoln production

The AWS deploy-prod job has failed since CI left AWS (no k8s.unbound.se
context on the runners). Deploys now go to the Frostmoln production
cluster (namespace schemas), the way the sites do.

Frostmoln enforces restricted Pod Security: the pod runs as the image's
non-root user with a matching securityContext. The prod-only manifests
move to the prod-frostmoln target; the ALB ingress becomes a Traefik one
with a Let's Encrypt certificate.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Ma8eHhW59hLAJuLzBnLvUu

.gitea/workflows/ci.yaml

@@ -83,16 +83,30 @@ jobs:
       - name: Build and push
         run: unset GITEA_TOKEN && build && push
 
-  deploy-prod:
+  deploy-prod-frostmoln:
     needs: build
     if: gitea.ref == 'refs/heads/main'
     runs-on: ubuntu-latest
     env:
-      BUILDTOOLS_CONTENT: ${{ secrets.BUILDTOOLS_CONTENT }}
+      BUILDTOOLS_CONTENT: ${{ secrets.BUILDTOOLS_FROSTMOLN_PRODUCTION }}
       GITEA_REPOSITORY: ${{ gitea.repository }}
+      FM_TENANT: 9ae61342-0f76-476f-8176-e46f6b0b0c32
     environment: prod
     steps:
       - uses: actions/checkout@v7
       - uses: buildtool/setup-buildtools-action@v1
-      - name: Deploy to production
-        run: deploy prod
+      - name: Install fm
+        run: |
+          sudo install -d -m 0755 /etc/apt/keyrings
+          sudo curl -fsSL -o /etc/apt/keyrings/frostmoln.gpg https://get.frostmoln.cloud/deb/frostmoln.gpg
+          sudo curl -fsSL -o /etc/apt/sources.list.d/frostmoln.sources https://get.frostmoln.cloud/deb/frostmoln.sources
+          sudo apt-get update && sudo apt-get install -y fm
+      - name: Deploy to Frostmoln production
+        env:
+          FROSTMOLN_API_KEY: ${{ secrets.FROSTMOLN_PRODUCTION_DEPLOY_KEY }}
+        # The cluster API is private: the kubeconfig's exec plugin opens an fm
+        # tunnel on demand. fm reads the key from its config file, not the env.
+        run: |
+          fm auth api-key set "$FROSTMOLN_API_KEY" > /dev/null
+          fm kubernetes cluster kubeconfig ${{ vars.FROSTMOLN_PRODUCTION_CLUSTER_ID }} --exec --file "$RUNNER_TEMP/kubeconfig"
+          KUBECONFIG_CONTENT="$(cat "$RUNNER_TEMP/kubeconfig")" deploy prod-frostmoln -n schemas

Dockerfile

@@ -24,7 +24,7 @@ RUN GOOS=linux GOARCH=amd64 go build \
 FROM scratch as export
 COPY --from=build /build/coverage.txt /
 
-FROM node:24.22.0-alpine@sha256:44fce696f38ba8c987c4db89954051000bbd05ffd8d8659ba15ed4a8602e937f
+FROM node:24.21.0-alpine@sha256:ebfe2f90462722a7a4de65e91990e97fe0d401c70e0e762c5b53302f905ec1c1
 ENV TZ Europe/Stockholm
 
 # Install wgc CLI globally for Cosmo Router composition
@@ -42,4 +42,8 @@ COPY --from=build /etc/ssl/certs/ca-certificates.crt /etc/ssl/certs/
 # Copy the service binary
 COPY --from=build /release/service /
 
+# The image's own non-root user: Frostmoln enforces restricted Pod Security.
+# The service only writes under /tmp (cosmo composition).
+USER node
+
 CMD ["/service"]

k8s/deploy.yaml

@@ -26,6 +26,11 @@ spec:
       labels:
         app.kubernetes.io/name: schemas
     spec:
+      securityContext:
+        runAsNonRoot: true
+        runAsUser: 1000
+        seccompProfile:
+          type: RuntimeDefault
       affinity:
         podAntiAffinity:
           preferredDuringSchedulingIgnoredDuringExecution:
@@ -40,6 +45,10 @@ spec:
               topologyKey: kubernetes.io/hostname
       containers:
       - name: schemas
+        securityContext:
+          allowPrivilegeEscalation: false
+          capabilities:
+            drop: ["ALL"]
         resources:
           requests:
             cpu: "100m"

k8s/ingress-prod-frostmoln.yaml

@@ -0,0 +1,20 @@
+apiVersion: networking.k8s.io/v1
+kind: Ingress
+metadata:
+  name: schemas
+  annotations:
+    traefik.ingress.kubernetes.io/router.entrypoints: websecure
+    traefik.ingress.kubernetes.io/router.tls.certresolver: letsencrypt
+spec:
+  ingressClassName: traefik
+  rules:
+  - host: "schemas.unbound.se"
+    http:
+      paths:
+      - path: /query
+        pathType: Prefix
+        backend:
+          service:
+            name: schemas
+            port:
+              name: api

k8s/ingress-prod.yaml

@@ -1,24 +0,0 @@
-apiVersion: networking.k8s.io/v1
-kind: Ingress
-metadata:
-  name: schemas-ingress
-  annotations:
-    alb.ingress.kubernetes.io/group.name: "default"
-    alb.ingress.kubernetes.io/scheme: internet-facing
-    alb.ingress.kubernetes.io/target-type: instance
-    alb.ingress.kubernetes.io/listen-ports: '[{"HTTP": 80},{"HTTPS": 443}]'
-    alb.ingress.kubernetes.io/ssl-redirect: "443"
-    alb.ingress.kubernetes.io/healthcheck-path: '/health'
-spec:
-  ingressClassName: "alb"
-  rules:
-  - host: "schemas.unbound.se"
-    http:
-      paths:
-      - path: /query
-        pathType: ImplementationSpecific
-        backend:
-          service:
-            name: schemas
-            port:
-              name: api

k8s/secrets-prod-frostmoln.yaml

@@ -0,0 +1,17 @@
+apiVersion: external-secrets.io/v1
+kind: ExternalSecret
+metadata:
+  name: schemas
+spec:
+  refreshInterval: 1h
+  # The namespace's store (infra frostmoln/production/schemas.tf); the
+  # Frostmoln Secret holds POSTGRES_URL, AMQP_URL and API_KEY
+  # (infra frostmoln/production/scripts/seed-schemas.sh).
+  secretStoreRef:
+    name: frostmoln
+    kind: SecretStore
+  target:
+    name: schemas
+  dataFrom:
+  - extract:
+      key: schemas

k8s/secrets.yaml

@@ -1,24 +0,0 @@
-apiVersion: external-secrets.io/v1
-kind: ExternalSecret
-metadata:
-  name: schemas
-spec:
-  refreshInterval: 1h
-  secretStoreRef:
-    name: external-secrets
-    kind: ClusterSecretStore
-  target:
-    creationPolicy: Owner
-    template:
-      mergePolicy: Merge
-      engineVersion: 'v2'
-      data:
-        POSTGRES_URL: "postgres://{{ .DB_USERNAME }}:{{ .DB_PASSWORD }}@{{ .DB_HOST }}:{{ .DB_PORT }}/schemas?sslmode=disable"
-        API_KEY: "{{ .API_KEY }}"
-  dataFrom:
-  - extract:
-      key: services/schemas
-  - extract:
-      key: rds/postgres/prod-psql
-  - extract:
-      key: mq/rabbit/prod