name: Example
jobs:
  generate:
    steps:
      - uses: actions/checkout@v2
      - name: Substring branch name
        id: substring
        uses: ricardorames/[email protected]
        with:
            separator: 'release-'
      - name: Build and push Docker images
        uses: docker/[email protected]
        with:
          username: ${{secrets.DOCKER_REGISTRY_USERNAME}}
          password: ${{secrets.DOCKER_REGISTRY_PASSWORD}}
          registry: your.registry.io
          repository: your-repository
          tags: ${{steps.substring.outputs.value}}
          tag_with_ref: false
          tag_with_sha: false