dockerbuild_develop_master.yaml

# This is a basic workflow to help you get started with Actions

name: develop/master

# Controls when the action will run.
on:
  # Triggers the workflow on push or pull request events but only for the dev branch
  push:
    branches:
     - master
     - develop
    paths:
      - 'dockerfiles/**/VERSION'

  # Allows you to run this workflow manually from the Actions tab
  workflow_dispatch:

# A workflow run is made up of one or more jobs that can run sequentially or in parallel
jobs:
  docker_build_push:
    name: docker build
    runs-on: ubuntu-latest

    steps:
      - uses: actions/checkout@v2
        with:
          fetch-depth: 0

      - name: Log into registry
        run: echo "${{ secrets.HUB_PASSWORD }}" | docker login ${{ secrets.DOCKER_REGISTRY_URL }} -u ${{ secrets.DOCKERHUB_USER }} --password-stdin

      - name: Build and push the images
        run: |
          for versionFilePath in $(git diff-tree --no-commit-id -r ${{ github.event.before }} ${{ github.sha }} | awk '{if($5 != "D") print($6)}' | grep "VERSION");
          do
             folder=${versionFilePath%"/VERSION"}
            IMAGE_NAME=${folder##*/}
            tmpName="image-$RANDOM"
            docker build $folder --file $folder/Dockerfile --tag $tmpName
            IMAGE_ID=${{ secrets.DOCKER_REGISTRY_URL }}/${{ secrets.REPOSITORY }}/$IMAGE_NAME
            VERSION=$(echo ${GITHUB_REF#refs/heads/} | sed 's/\//_/g')
            echo IMAGE_ID=$IMAGE_ID
            echo VERSION=$VERSION
            docker tag $tmpName $IMAGE_ID:$VERSION
            docker push $IMAGE_ID:$VERSION
          done;