build-push.yml

name: Build && Push

# Controls when the action will run. Triggers the workflow on push or pull request
# events but only for the develop branch
on:
  push:
    branches: [develop, master]

# A workflow run is made up of one or more jobs that can run sequentially or in parallel
jobs:
  # This workflow contains a single job called "build"
  build:
    # The type of runner that the job will run on
    runs-on: ubuntu-latest

    # Steps represent a sequence of tasks that will be executed as part of the job
    steps:
      # Checks-out your repository under $GITHUB_WORKSPACE, so your job can access it
      - uses: actions/checkout@v2

      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v1

      - name: Login to GitHub Container Registry
        uses: docker/login-action@v2
        with:
          registry: ghcr.io
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - name: Extract branch name
        id: extract_branch
        shell: bash
        run: |
          # Extract branch name
          BRANCH_NAME=${GITHUB_REF#refs/heads/}

          # set output variable accessible in the action
          echo ::set-output name=branch::${BRANCH_NAME}

      # For debugging capture the selected branch
      - name: Extracted branch
        run: echo "Extracted branch ${{ steps.extract_branch.outputs.branch }}"

      # Avoid build and push only for 'master' branch because for 'master' we have another action that builds release image
      - name: Build and push
        if: steps.extract_branch.outputs.branch != 'master'
        id: docker_build
        uses: docker/build-push-action@v2
        with:
          build-args: BUILD_VERSION=${{ github.sha }}
          push: true
          platforms: linux/amd64,linux/arm64/v8
          tags: ghcr.io/userofficeproject/user-office-development-authorization-server:${{ steps.extract_branch.outputs.branch }}