Add GitHub workflow for building and publishing docker image #1
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| name: Create and publish a Docker image | |
| # Run this workflow every time a change is pushed to the branch called `release` | |
| on: | |
| push: | |
| branches: ['main'] | |
| env: | |
| # GitHub container registry | |
| REGISTRY: ghcr.io | |
| # Name used for Docker image | |
| IMAGE_NAME: ${{ github.repository }} | |
| jobs: | |
| build-and-push-image: | |
| runs-on: ubuntu-latest | |
| # Set permissions granted to the `GITHUB_TOKEN` for the actions in this job | |
| permissions: | |
| contents: read | |
| packages: write | |
| attestations: write | |
| id-token: write | |
| steps: | |
| # Checkout the repository | |
| - name: Checkout repository | |
| uses: actions/checkout@v4 | |
| - name: Generate XNAT container service labels | |
| id: xnat-command-label | |
| run: | | |
| import json | |
| import os | |
| repo_dir = os.getenv('GITHUB_WORKSPACE') | |
| command_list = [] | |
| for file in os.listdir(repo_dir): | |
| if file.endswith(".json"): | |
| with open(file) as f: | |
| command_object = json.load(f) | |
| command_string = json.dumps(command_object) | |
| command_list.append(command_string) | |
| commands = ','.join(command_list) | |
| label = f'org.nrg.commands=[{commands}]' | |
| with open(os.environ['GITHUB_OUTPUT'], 'a') as github_output: | |
| print(f"label={label}", file=github_output) | |
| shell: python | |
| # Log into the container registry | |
| - name: Log in to the Container registry | |
| uses: docker/login-action@v3 | |
| with: | |
| registry: ${{ env.REGISTRY }} | |
| username: ${{ github.actor }} | |
| password: ${{ secrets.GITHUB_TOKEN }} | |
| # Extract metadata (tags and labels) to be applied to the image. See [docker/metadata-action](https://github.com/docker/metadata-action#about) | |
| # 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 for Docker | |
| id: meta | |
| uses: docker/metadata-action@v5 | |
| with: | |
| images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }} | |
| # labels: | | |
| # # set xnat container service label defining commands in this image | |
| # ${{ steps.xnat-command-label.outputs.label }} | |
| tags: | | |
| # set latest tag for default branch | |
| type=raw,value=latest,enable={{is_default_branch}} | |
| # Build the image from the Dockerfile in the repo and push to the container registry. | |
| # The `context` parameter defines 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. | |
| # Tag and label the image using the output from the metadata step above | |
| - name: Build and push Docker image | |
| id: push | |
| uses: docker/build-push-action@v6 | |
| with: | |
| context: . | |
| push: true | |
| tags: ${{ steps.meta.outputs.tags }} | |
| labels: ${{ steps.meta.outputs.labels }} |