backend_publish.yml

name: Publish Docker Image

on:
  push:
    branches:
      - main  
  workflow_dispatch:  # Manual trigger

jobs:
  build:
    runs-on: ubuntu-latest

    steps:
    - name: Checkout code
      uses: actions/checkout@v3

    - name: Set up JDK 21
      uses: actions/setup-java@v3
      with:
        distribution: 'adopt'
        java-version: '21'

    - name: Set up Docker Buildx
      uses: docker/setup-buildx-action@v2

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

    - name: Determine Docker Image Tag
      id: tag
      run: |
        # Check if the current commit has a tag
        TAG=$(git describe --tags --exact-match 2>/dev/null || echo "")
        if [ -z "$TAG" ]; then
          # No tag found, use the short commit hash as the tag
          TAG=$(git rev-parse --short HEAD)
        fi
        echo "TAG=$TAG" >> $GITHUB_ENV

    - name: Build and Publish Docker Image
      working-directory: backend
      env:
        GITHUB_ACTOR: ${{ github.actor }}
        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
      run: |
        # Build the Docker image and tag it with both the dynamic tag and 'latest'
        ./gradlew bootBuildImage --imageName=ghcr.io/${{ github.repository }}:${{ env.TAG }}
        ./gradlew bootBuildImage --imageName=ghcr.io/${{ github.repository }}:latest
          
    - name: Verify image
      run: docker images