docker-hub-build-backend.yml

# Reference from https://github.com/eclipse-tractusx/app-dashboard/blob/main/.github/workflows/build-image.yaml
# You might want to check the source for recent updates
name: Build Backend - Docker image (SemVer)

on:
  push:
    branches:
      - main
    # trigger events for SemVer like tags
    tags:
      - 'v*.*.*'
      - 'v*.*.*-*'
  pull_request:
    branches:
      - main

env:
  IMAGE_NAMESPACE: "tractusx"
  IMAGE_NAME: "vas-country-risk-backend"

jobs:
  docker:
    runs-on: ubuntu-latest
    permissions:
      packages: write

    steps:
      - name: Checkout
        uses: actions/checkout@v4

      # Create SemVer or ref tags dependent of trigger event
      - name: Docker meta
        id: meta
        uses: docker/metadata-action@v5
        with:
          images: |
            ${{ env.IMAGE_NAMESPACE }}/${{ env.IMAGE_NAME }}
          # Automatically prepare image tags; See action docs for more examples. 
          # semver patter will generate tags like these for example :1 :1.2 :1.2.3
          tags: |
            type=ref,event=branch
            type=ref,event=pr
            type=semver,pattern={{version}}
            type=semver,pattern={{major}}
            type=semver,pattern={{major}}.{{minor}}

      - name: DockerHub login
        if: github.event_name != 'pull_request'
        uses: docker/login-action@v3.1.0
        with:
          # Use existing DockerHub credentials present as secrets
          username: ${{ secrets.DOCKER_HUB_USER }}
          password: ${{ secrets.DOCKER_HUB_TOKEN }}

      - name: Build and push
        uses: docker/build-push-action@v5.3.0
        with:
          context: .
          file: ./backend/Dockerfile
          push: ${{ github.event_name != 'pull_request' }}
          tags: |
            ${{ steps.meta.outputs.tags }},
            ${{ env.IMAGE_NAMESPACE }}/${{ env.IMAGE_NAME }}:latest
          labels: ${{ steps.meta.outputs.labels }}


      # https://github.com/peter-evans/dockerhub-description
      # Important step to push image description to DockerHub 
      - name: Update Docker Hub description
        if: github.event_name != 'pull_request'
        uses: peter-evans/dockerhub-description@v4
        with:
          # readme-filepath defaults to toplevel README.md, Only necessary if you have a dedicated file with your 'Notice for docker images'
          readme-filepath: ./backend/DOCKER_NOTICE.md
          username: ${{ secrets.DOCKER_HUB_USER }}
          password: ${{ secrets.DOCKER_HUB_TOKEN }}
          repository: ${{ env.IMAGE_NAMESPACE }}/${{ env.IMAGE_NAME }}