ci.yml

name: "CI Full Run"
on:
  pull_request:
    branches:
      - main
      - grok/*/*
  push:
    branches:
      - main
    tags:
      - "v*"

jobs:
  # Tests ci-storage tool and action itself.
  ci-storage-tool-test:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - name: Create dummy file
        run: |
          echo "dummy" > dummy.txt
          echo -n "" > ~/ci-storage-host
      - name: Test store
        uses: ./
        with:
          action: "store"
      - name: Remove dummy file
        run: rm dummy.txt
      - name: Test load
        uses: ./
        with:
          action: "load"
      - name: Check that dummy file was restored
        run: |
          set -e
          ls -la ~/ci-storage/dimikot/ci-storage
          [ "$(cat dummy.txt)" = "dummy" ] || { echo "dummy.txt was not restored"; exit 1; }

  # Builds and boots a self-hosted runner inside GitHub's infra. Once it's
  # settled, there is a running container with one self-hosted runner waiting
  # for jobs with "ci-storage-test" tag to pick up (based on Dockerfile image).
  build-and-boot-containers:
    runs-on: ubuntu-latest
    timeout-minutes: 5
    steps:
      - uses: actions/checkout@v4
      - name: Start test Docker containers
        run: |
          exec 2>&1; set -e -o xtrace
          cd docker
          # Build all containers.
          docker compose build --parallel
          # Boot "host" container in background.
          docker compose up host -d
          # Boot "self-hosted-runner" container. It connects to "host" container
          # and load a test (non-existent) ci-storage slot from there, then
          # register a GitHub self-hosted runner and remain waiting for jobs.
          docker compose up self-hosted-runner
        env:
          GH_REPOSITORY: ${{ github.repository }}
          GH_LABELS: ${{ format('ci-storage-test-{0}-{1}', github.run_id, github.run_attempt) }}
          GH_TOKEN: ${{ secrets.CI_PAT }}

  # Test the job with "ci-storage-test" tag which is initially queued, but then
  # is picked up by the self-hosted-runner container booted in the previous job.
  # In the end, the test job sends SIGINT to the container entrypoint.sh PID, so
  # the container (based on Dockerfile image) shuts down gracefully.
  spawn-job-test:
    runs-on:
      - self-hosted
      - ${{ format('ci-storage-test-{0}-{1}', github.run_id, github.run_attempt) }}
    steps:
      - uses: actions/checkout@v4
      - name: Run test job inside the self-hosted runner
        run: echo "Hello, world!"
      - name: Test store using GitHub Action
        uses: ./
        with:
          action: "store"
      - name: Kill self-hosted runner container
        run: kill -SIGINT $(cat ~user/.entrypoint.pid)

  # Publishes "host" image to Docker Hub.
  push-host:
    runs-on: ubuntu-latest
    if: github.event_name != 'pull_request'
    needs:
      - ci-storage-tool-test
      - build-and-boot-containers
      - spawn-job-test
    steps:
      - uses: actions/checkout@v4
      - uses: docker/setup-qemu-action@v3
      - uses: docker/setup-buildx-action@v3
      - uses: docker/metadata-action@v5
        id: meta
        with:
          images: dimikot/ci-storage-host
      - uses: docker/login-action@v3
        with:
          username: dimikot
          password: ${{ secrets.DOCKERHUB_PAT }}
      - uses: docker/build-push-action@v5
        with:
          context: docker/host
          platforms: linux/amd64,linux/arm64,linux/arm64/v8
          push: ${{ github.event_name != 'pull_request' }}
          tags: ${{ steps.meta.outputs.tags }}
          labels: ${{ steps.meta.outputs.labels }}
      - uses: peter-evans/dockerhub-description@v3
        with:
          username: dimikot
          password: ${{ secrets.DOCKERHUB_PAT }}
          readme-filepath: docker/host/README.md
          repository: dimikot/ci-storage-host

  # Publishes "self-hosted-runner" image to Docker Hub.
  push-self-hosted-runner:
    runs-on: ubuntu-latest
    if: github.event_name != 'pull_request'
    needs:
      - ci-storage-tool-test
      - build-and-boot-containers
      - spawn-job-test
    steps:
      - uses: actions/checkout@v4
      - uses: docker/setup-qemu-action@v3
      - uses: docker/setup-buildx-action@v3
      - uses: docker/metadata-action@v5
        id: meta
        with:
          images: dimikot/ci-storage-self-hosted-runner
      - uses: docker/login-action@v3
        with:
          username: dimikot
          password: ${{ secrets.DOCKERHUB_PAT }}
      - uses: docker/build-push-action@v5
        with:
          context: docker/self-hosted-runner
          platforms: linux/amd64,linux/arm64,linux/arm64/v8
          push: ${{ github.event_name != 'pull_request' }}
          tags: ${{ steps.meta.outputs.tags }}
          labels: ${{ steps.meta.outputs.labels }}
      - uses: peter-evans/dockerhub-description@v3
        with:
          username: dimikot
          password: ${{ secrets.DOCKERHUB_PAT }}
          readme-filepath: docker/self-hosted-runner/README.md
          repository: dimikot/ci-storage-self-hosted-runner