docker.yml

name: Build image to DockerHub

on:
  push:
    branches: [main]
    paths:
      - "apps/*/Dockerfile"
      - "apps/*/cmd.sh"
      - "apps/*/entrypoint.sh"

jobs:
  test:
    name: Build Docker image
    runs-on: ubuntu-latest

    steps:
    - name: Checkout code
      uses: actions/checkout@v3
      with:
        fetch-depth: 2

    - name: Get applist
      id: getlist
      run: |
        git diff --name-only HEAD^ HEAD
        changed_files=$(git diff --name-only HEAD^ HEAD)
        app_list=$(echo "$changed_files" | grep -E 'apps/.*/(Dockerfile|cmd.sh|entrypoint.sh)$' | awk -F'/' '{print $2}' | sort | uniq)
        echo "APP_LISTS=$app_list" >> $GITHUB_ENV

    - name: Set up Docker Buildx
      uses: docker/setup-buildx-action@v3

    - name: Login to DockerHub
      uses: docker/login-action@v3
      with:
        username: ${{ secrets.DOCKER_USERNAME }}
        password: ${{ secrets.DOCKER_PASSWORD }}

    - name: Build and push Docker images
      run: |
        IFS=',' read -ra APP_LISTS <<< "$APP_LISTS"
        for APP in "${APP_LISTS[@]}"; do
          TAG=$(grep 'LABEL version' "apps/$APP/Dockerfile" | cut -d'"' -f2)
          echo $TAG
          TAGS=$(echo $TAG | awk -F. '{for(i=1;i<=NF;i++){printf (i==1?"":",")"%s",substr($0,1,index($0,$i"."$((i+1)))-1)}}' | sed 's/,$//')
          echo $TAGS
          echo "Building and pushing Docker image for $APP with tags: $TAGS"
          echo "TAGS=$TAGS" >> $GITHUB_ENV
          echo "APP=$APP" >> $GITHUB_ENV
          echo "DOCKERFILE=apps/$APP/Dockerfile" >> $GITHUB_ENV
          echo "README=apps/$APP/README.md" >> $GITHUB_ENV
        done
      if: env.APP_LISTS != ''