Template for GitHub Actions self-hosted runner on Kubernetes

statefulset.yaml

apiVersion: apps/v1
kind: StatefulSet
metadata:
  name: github-actions-runner
spec:
  serviceName: "github-actions-runner-svc"
  replicas: 1
  selector:
    matchLabels:
      app: github-actions-runner
  template:
    metadata:
      labels:
        app: github-actions-runner
    spec:
      serviceAccountName: deploy-runner
      initContainers:
        - name: copy-files
          imagePullPolicy: Always
          image: tcardonne/github-runner
          command:
            - bash
            - "-c"
            - "if [ ! -f /mnt/config.sh ]; then cp -r /home/runner/* /mnt/; fi"
          volumeMounts:
            - mountPath: /mnt/
              name: runner-pv
      containers:
        - name: runner
          imagePullPolicy: Always
          image: tcardonne/github-runner
          env:
            - name: DOCKER_HOST
              value: 127.0.0.1
            - name: RUNNER_REPOSITORY_URL
              value: https://github.com/MISW/k8s
            - name: AGENT_ALLOW_RUNASROOT
              value: "1"
            - name: RUNNER_REPLACE_EXISTING
              value: "true"
          envFrom:
            - secretRef: # GITHUB_TOKEN
                name: github-actions-token
          volumeMounts:
            - mountPath: /home/runner
              name: runner-pv
        - name: docker
          image: docker:stable-dind
          env:
            - name: DOCKER_TLS_CERTDIR
              value: ""
          securityContext:
            privileged: true
  volumeClaimTemplates:
    - metadata:
        name: runner-pv
      spec:
        accessModes: ["ReadWriteOnce"]
        storageClassName: "managed-nfs-storage"
        resources:
          requests:
            storage: 1Gi