An action to build docker image and push to Google Cloud Registry.

jobs:
  job_id:
    steps:
      - uses: actions/checkout@v3
      - uses: UPN-TW/[email protected]
        with:
          gcr_auth_key: ${{ secrets.GCR_AUTH_KEY }}
          registry: gcr.io
          project_id: project_id
          image: backend
          tags: latest,v1
          dockerfile: ./docker/Dockerfile.prod
          context: ./docker

• gcr_auth_key: The service account key of Google Cloud project that composed of JSON can be encoded in base64 or in plain text.
• registry: The registry where the image should be pushed.
• project_id: Project ID of the Google Cloud project.
• image: The image name.
• tags: (Optional) A list of image tags separated by commas (e.g. v2.1,v2,latest).
  Default: latest.
• dockerfile: (Optional) The image building Dockerfile, if the context is not the root of the repository, Dockerfile from the context folder will be used.
  Default: ./Dockerfile.
• context: (Optional) The docker build context.
  Default: .
• build-args: (Optional) Pass a list of environment variables as build-args for docker-build, separated by commas. ie: HOST=db.default.svc.cluster.local:5432,USERNAME=db_user.