forgejo-runner/examples/kubernetes/dind-docker.yaml

# Secret data.
# You will need to retrieve this from the web UI, and your Forgejo instance must be running v1.21+
# Alternatively, create this with
# kubectl create secret generic runner-secret --from-literal=token=your_offline_token_here
apiVersion: v1
kind: Secret
metadata:
  name: runner-secret
stringData:
  token: your_offline_secret_here # Replace with your Forgejo offline registration token
---
apiVersion: apps/v1
kind: Deployment
metadata:
  name: forgejo-runner
  labels:
    app: forgejo-runner
    app.kubernetes.io/component: forgejo-runner
    app.kubernetes.io/instance: forgejo-runner
    app.kubernetes.io/managed-by: Kustomize
    app.kubernetes.io/name: forgejo-runner
  annotations:
    argocd.argoproj.io/sync-wave: '1'
spec:
  replicas: 2
  selector:
    matchLabels:
      app: forgejo-runner
  template:
    metadata:
      name: forgejo-runner
      labels:
        app: forgejo-runner
        app.kubernetes.io/component: forgejo-runner
        app.kubernetes.io/instance: forgejo-runner
        app.kubernetes.io/managed-by: Kustomize
        app.kubernetes.io/name: forgejo-runner
    spec:
      automountServiceAccountToken: false
      restartPolicy: Always
      initContainers:
        - name: runner-register
          image: code.forgejo.org/forgejo/runner:6.4.0
          command:
            - /bin/bash
            - -c
          args:
            - |
              while : ; do
                forgejo-runner register --no-interactive --token $(RUNNER_SECRET) --name $(RUNNER_NAME) --instance $(FORGEJO_INSTANCE_URL) && break ;
                sleep 1 ;
              done ;
              forgejo-runner generate-config > /data/config.yml ;
              sed -i -e "s|network: .*|network: host|" config.yml ;
              sed -i -e "s|^  envs:$$|  envs:\n    DOCKER_HOST: tcp://localhost:2376\n    DOCKER_TLS_VERIFY: 1\n    DOCKER_CERT_PATH: /certs/client|" config.yml ;
              sed -i -e "s|^  options:|  options: -v /certs/client:/certs/client|" config.yml ;
              sed -i -e "s|  valid_volumes: \[\]$$|  valid_volumes:\n    - /certs/client|" config.yml
          env:
            - name: RUNNER_NAME
              valueFrom:
                fieldRef:
                  fieldPath: metadata.name
            - name: RUNNER_SECRET
              valueFrom:
                secretKeyRef:
                  name: runner-secret
                  key: token
            - name: FORGEJO_INSTANCE_URL
              value: https://my-forgejo.fr # Replace with your Forgejo instance URL
          resources:
            limits:
              cpu: '0.5'
              ephemeral-storage: 100Mi
              memory: 64Mi
            requests:
              cpu: 100m
              ephemeral-storage: '0'
              memory: 64Mi
          volumeMounts:
            - name: runner-data
              mountPath: /data
          securityContext:
            allowPrivilegeEscalation: false
            capabilities:
              drop:
                - ALL
            privileged: false
            readOnlyRootFilesystem: true
            runAsNonRoot: true
            seccompProfile:
              type: RuntimeDefault
      containers:
        - name: runner
          image: code.forgejo.org/forgejo/runner:6.4.0
          command:
            - /bin/bash
            - -c
          args:
            - |
              while ! nc -z localhost 2376 </dev/null ; do
                echo 'waiting for docker daemon...' ;
                sleep 5 ;
                done ;
              forgejo-runner --config config.yml daemon
          env:
            - name: DOCKER_HOST
              value: tcp://localhost:2376
            - name: DOCKER_CERT_PATH
              value: /certs/client
            - name: DOCKER_TLS_VERIFY
              value: '1'
          resources:
            limits:
              cpu: '1'
              ephemeral-storage: 3Gi
              memory: 4Gi
            requests:
              cpu: 100m
              ephemeral-storage: '0'
              memory: 64Mi
          volumeMounts:
            - name: docker-certs
              mountPath: /certs
            - name: runner-data
              mountPath: /data
            - name: tmp
              mountPath: /tmp
          securityContext:
            allowPrivilegeEscalation: false
            capabilities:
              drop:
                - ALL
            privileged: false
            readOnlyRootFilesystem: true
            runAsNonRoot: true
            seccompProfile:
              type: RuntimeDefault
        - name: daemon
          image: docker.io/docker:28.3.0-dind
          env:
            - name: DOCKER_TLS_CERTDIR
              value: /certs
          resources:
            limits:
              cpu: '1'
              ephemeral-storage: 3Gi
              memory: 4Gi
            requests:
              cpu: 100m
              ephemeral-storage: '0'
              memory: 64Mi
          securityContext:
            privileged: true
          volumeMounts:
            - name: docker-certs
              mountPath: /certs
      volumes:
        - name: docker-certs
          emptyDir: {}
        - name: runner-data
          emptyDir: {}
        - name: tmp
          emptyDir: {}