railiance-apps/manifests/forgejo-runner.yaml

# In-cluster Forgejo Actions runner (ADR-004).
# DinD sidecar + forgejo-runner; registration via init container on first boot.
---
apiVersion: v1
kind: PersistentVolumeClaim
metadata:
  name: forgejo-runner-data
  namespace: forgejo
  labels:
    app.kubernetes.io/name: forgejo-runner
    app.kubernetes.io/part-of: railiance-apps
spec:
  accessModes:
    - ReadWriteOnce
  resources:
    requests:
      storage: 5Gi
  storageClassName: local-path
---
apiVersion: v1
kind: ConfigMap
metadata:
  name: forgejo-runner-init
  namespace: forgejo
  labels:
    app.kubernetes.io/name: forgejo-runner
data:
  register.sh: |
    #!/bin/sh
    set -eu
    cd /data
    if [ ! -f config.yaml ]; then
      forgejo-runner generate-config > config.yaml
    fi
    if [ ! -f .runner ]; then
      forgejo-runner register --no-interactive \
        --config /data/config.yaml \
        --instance "${FORGEJO_INSTANCE}" \
        --token "${REGISTRATION_TOKEN}" \
        --name "${RUNNER_NAME}" \
        --labels "${RUNNER_LABELS}"
    fi
---
apiVersion: apps/v1
kind: Deployment
metadata:
  name: forgejo-runner
  namespace: forgejo
  labels:
    app.kubernetes.io/name: forgejo-runner
    app.kubernetes.io/part-of: railiance-apps
spec:
  replicas: 1
  strategy:
    type: Recreate
  selector:
    matchLabels:
      app.kubernetes.io/name: forgejo-runner
  template:
    metadata:
      labels:
        app.kubernetes.io/name: forgejo-runner
    spec:
      securityContext:
        fsGroup: 1000
      initContainers:
        - name: register
          image: code.forgejo.org/forgejo/runner:6.3.1
          imagePullPolicy: IfNotPresent
          command: ["/bin/sh", "/scripts/register.sh"]
          env:
            - name: FORGEJO_INSTANCE
              value: "https://forgejo.coulomb.social/"
            - name: RUNNER_NAME
              value: "railiance01-build-01"
            - name: RUNNER_LABELS
              value: "self-hosted:host,linux:host,linux_amd64:host,container-build:host,registry-publish:host,railiance01:host,ubuntu-latest:docker://node:20-bookworm,docker:docker://node:20-bookworm"
            - name: REGISTRATION_TOKEN
              valueFrom:
                secretKeyRef:
                  name: forgejo-runner-registration
                  key: token
          volumeMounts:
            - name: data
              mountPath: /data
            - name: init-scripts
              mountPath: /scripts
              readOnly: true
      containers:
        - name: dind
          image: docker:27-dind
          imagePullPolicy: IfNotPresent
          securityContext:
            privileged: true
          env:
            - name: DOCKER_TLS_CERTDIR
              value: ""
          args:
            - dockerd
            - -H
            - tcp://0.0.0.0:2375
            - --tls=false
          readinessProbe:
            tcpSocket:
              port: 2375
            initialDelaySeconds: 10
            periodSeconds: 10
        - name: runner
          image: code.forgejo.org/forgejo/runner:6.3.1
          imagePullPolicy: IfNotPresent
          env:
            - name: DOCKER_HOST
              value: tcp://127.0.0.1:2375
          command: ["/bin/sh", "-c"]
          args:
            - |
              set -eu
              echo "waiting for DinD..."
              for i in $(seq 1 90); do
                if wget -q -O- http://127.0.0.1:2375/_ping 2>/dev/null | grep -q OK; then
                  echo "DinD ready"
                  break
                fi
                sleep 2
              done
              exec forgejo-runner daemon --config /data/config.yaml
          volumeMounts:
            - name: data
              mountPath: /data
          readinessProbe:
            exec:
              command: ["/bin/sh", "-c", "wget -q -O- http://127.0.0.1:2375/_ping | grep -q OK"]
            initialDelaySeconds: 15
            periodSeconds: 30
      volumes:
        - name: data
          persistentVolumeClaim:
            claimName: forgejo-runner-data
        - name: init-scripts
          configMap:
            name: forgejo-runner-init
            defaultMode: 0555