apiVersion: apps/v1
kind: StatefulSet
metadata:
  name: forgejo-runner
  namespace: forgejo
spec:
  serviceName: forgejo-runner
  replicas: 1
  selector:
    matchLabels:
      app: forgejo-runner
  template:
    metadata:
      labels:
        app: forgejo-runner
    spec:
      restartPolicy: Always
      serviceAccountName: forgejo-runner
      volumes:
      - name: docker-socket
        emptyDir: {}
      - name: config
        configMap:
          name: forgejo-runner-config
      initContainers:
      - name: docker
        image: docker:28-dind
        securityContext:
          privileged: true
        volumeMounts:
        - name: docker-socket
          mountPath: /var/run
        - name: docker-data
          mountPath: /var/lib/docker
        startupProbe:
          exec:
            command: ["/usr/bin/test", "-S", "/var/run/docker.sock"]
          initialDelaySeconds: 5
          periodSeconds: 2
          failureThreshold: 30
        livenessProbe:
          exec:
            command: ["/usr/bin/test", "-S", "/var/run/docker.sock"]
          periodSeconds: 10
        restartPolicy: Always
      containers:
      - name: runner
        image: code.forgejo.org/forgejo/runner:4.0.1
        imagePullPolicy: IfNotPresent
        command:
        - sh
        - -c
        - |
          # Install Docker CLI
          apk add --no-cache docker-cli

          # Wait for Forgejo to be ready
          while ! wget -q -O- https://forgejo.basicstack.de/api/healthz > /dev/null 2>&1; do
            echo "Waiting for Forgejo to be ready..."
            sleep 5
          done

          # Wait for Docker daemon to be ready
          while ! docker version > /dev/null 2>&1; do
            echo "Waiting for Docker daemon to be ready..."
            sleep 2
          done

          # Re-register if the stored address is the internal cluster URL
          if [ -f /data/.runner ] && grep -q "svc.cluster.local" /data/.runner; then
            echo "Detected internal cluster URL in .runner — forcing re-registration with external URL"
            rm /data/.runner
          fi

          # Register runner if not already registered
          if [ ! -f /data/.runner ]; then
            forgejo-runner register \
              --no-interactive \
              --instance https://forgejo.basicstack.de \
              --token "$RUNNER_TOKEN" \
              --name "k3s-dind-runner-${HOSTNAME##*-}" \
              --labels ubuntu-latest:docker://node:24-bookworm,ubuntu-22.04:docker://node:24-bookworm
          fi

          # Start runner
          forgejo-runner daemon --config /etc/forgejo-runner/config.yaml
        env:
        - name: RUNNER_TOKEN
          valueFrom:
            secretKeyRef:
              name: forgejo-runner-token
              key: token
        - name: DOCKER_HOST
          value: unix:///var/run/docker.sock
        volumeMounts:
        - name: runner-data
          mountPath: /data
        - name: docker-socket
          mountPath: /var/run
        - name: config
          mountPath: /etc/forgejo-runner
        resources:
          requests:
            cpu: 200m
            memory: 512Mi
          limits:
            cpu: "4"
            memory: 4Gi
  volumeClaimTemplates:
  - metadata:
      name: runner-data
    spec:
      accessModes:
      - ReadWriteOnce
      resources:
        requests:
          storage: 1Gi
      storageClassName: hcloud-volumes
  - metadata:
      name: docker-data
    spec:
      accessModes:
      - ReadWriteOnce
      resources:
        requests:
          storage: 20Gi
      storageClassName: hcloud-volumes