Create and publish a Docker image to GitHub Packages #126
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| name: Create and publish a Docker image | |
| on: | |
| schedule: | |
| - cron: '0 2 * * *' | |
| push: | |
| branches: | |
| - 'master' | |
| - 'develop' | |
| tags: | |
| - 'v*' | |
| pull_request: | |
| branches: | |
| - 'master' | |
| # Defines two custom environment variables for the workflow. These are used for the Container registry domain, and a name for the Docker image that this workflow builds. | |
| env: | |
| REGISTRY: ghcr.io | |
| IMAGE_NAME: ${{ github.repository }} | |
| # There is a single job in this workflow. It's configured to run on the latest available version of Ubuntu. | |
| jobs: | |
| build-and-push-image: | |
| runs-on: ubuntu-latest | |
| # Sets the permissions granted to the `GITHUB_TOKEN` for the actions in this job. | |
| permissions: | |
| contents: read | |
| packages: write | |
| # | |
| steps: | |
| - name: Checkout repository | |
| uses: actions/checkout@v3 | |
| - name: Prepare | |
| id: prepare | |
| run: | | |
| if [[ $GITHUB_REF == refs/tags/* ]]; then | |
| echo "tag=${GITHUB_REF#refs/tags/}" >> $GITHUB_OUTPUT | |
| elif [[ $GITHUB_REF == refs/heads/master ]]; then | |
| echo "tag=latest" >> $GITHUB_OUTPUT | |
| else | |
| echo "tag=${GITHUB_REF#refs/heads/}" >> $GITHUB_OUTPUT | |
| fi | |
| if [[ $GITHUB_REF == refs/tags/* ]]; then | |
| echo "branch=master" >> $GITHUB_OUTPUT | |
| else | |
| echo "branch=${GITHUB_REF#refs/heads/}" >> $GITHUB_OUTPUT | |
| fi | |
| echo "commit=${GITHUB_SHA}" >> $GITHUB_OUTPUT | |
| echo "build_date=$(date -u +'%Y-%m-%dT%H:%M:%SZ')" >> $GITHUB_OUTPUT | |
| # Uses the `docker/login-action` action to log in to the Container registry registry using the account and password that will publish the packages. Once published, the packages are scoped to the account defined here. | |
| - name: Log in to the Container registry | |
| uses: docker/login-action@65b78e6e13532edd9afa3aa52ac7964289d1a9c1 | |
| with: | |
| registry: ${{ env.REGISTRY }} | |
| username: ${{ github.actor }} | |
| password: ${{ secrets.GITHUB_TOKEN }} | |
| # This step uses [docker/metadata-action](https://github.com/docker/metadata-action#about) to extract tags and labels that will be applied to the specified image. The `id` "meta" allows the output of this step to be referenced in a subsequent step. The `images` value provides the base name for the tags and labels. | |
| - name: Extract metadata (tags, labels) for Docker | |
| id: meta | |
| uses: docker/metadata-action@v4 | |
| with: | |
| images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }} | |
| flavor: | | |
| latest=auto | |
| tags: | | |
| type=schedule | |
| type=semver,pattern={{version}} | |
| type=semver,pattern={{major}}.{{minor}} | |
| type=semver,pattern={{major}} | |
| type=ref,event=branch | |
| type=ref,event=pr | |
| type=ref,event=tag | |
| # This step uses the `docker/build-push-action` action to build the image, based on your repository's `Dockerfile`. If the build succeeds, it pushes the image to GitHub Packages. | |
| # It uses the `context` parameter to define the build's context as the set of files located in the specified path. For more information, see "[Usage](https://github.com/docker/build-push-action#usage)" in the README of the `docker/build-push-action` repository. | |
| # It uses the `tags` and `labels` parameters to tag and label the image with the output from the "meta" step. | |
| - name: Build and push Docker image | |
| uses: docker/build-push-action@v3 | |
| with: | |
| context: . | |
| push: ${{ github.event_name != 'pull_request' }} | |
| tags: ${{ steps.meta.outputs.tags }} | |
| labels: ${{ steps.meta.outputs.labels }} | |
| build-args: | | |
| TAG=${{ steps.prepare.outputs.tag }} | |
| BRANCH=${{ steps.prepare.outputs.branch }} | |
| COMMIT=${{ steps.prepare.outputs.commit }} | |
| BUILD_DATE=${{ steps.prepare.outputs.build_date }} |