docker-image.yaml

name: Build, Test and Release the Docker Image

on:
  # On each branch/commit
  push:
    paths:
      - 'docker-image/**'
      - '.github/workflows/docker-image.yaml'
  # On each pull request
  pull_request:
  # Manually
  workflow_dispatch: {}

jobs:
  build:
    runs-on: ubuntu-latest
    # Allow push to GHCR registry
    # https://docs.github.com/en/packages/managing-github-packages-using-github-actions-workflows/publishing-and-installing-a-package-with-github-actions#upgrading-a-workflow-that-accesses-ghcrio
    permissions:
      packages: write
      contents: read
    env:
      IMAGE_NAME: "ghcr.io/${{ github.repository_owner }}/jenkins-example:${{ github.sha }}"
    steps:
      - name: Checkout
        uses: actions/checkout@v4
      - name: Login to GitHub Container Registry
        uses: docker/login-action@v3
        with:
          registry: ghcr.io
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}
      - name: Build
        run: 'docker build --tag ${IMAGE_NAME} --label "gha_run_number=${GITHUB_RUN_ID}" ./docker-image/'
      - name: Push image
        run: 'docker push $IMAGE_NAME'
        if: github.event_name != 'pull_request'