DevOps-Core-S26/.github/workflows/python-docker.yml at master · LocalT0aster/DevOps-Core-S26 · GitHub

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name: Python Docker Publish

on:
  push:
    branches:
      - "lab*"
    paths:
      - app_python/**
      - .github/workflows/python-docker.yml
  pull_request:
    branches:
      - master
    types:
      - closed
    paths:
      - app_python/**
      - .github/workflows/python-docker.yml

jobs:
  build-and-push-branch:
    if: github.event_name == 'push'
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v6
      - name: Derive lab+sha tag from branch
        id: version
        run: |
          source_branch="${{ github.ref_name }}"
          if [[ "$source_branch" =~ ([0-9]+) ]]; then
            lab_number="${BASH_REMATCH[1]}"
            lab_number=$((10#$lab_number))
            short_sha="${GITHUB_SHA::7}"
            echo "branch_tag=1.${lab_number}.${short_sha}" >> "$GITHUB_OUTPUT"
            echo "branch_dev_tag=1.${lab_number}-dev" >> "$GITHUB_OUTPUT"
          else
            echo "Failed to extract lab number from branch: $source_branch" >&2
            exit 1
          fi
      - name: Log in to Docker Hub
        uses: docker/login-action@v4
        with:
          username: ${{ secrets.DOCKERHUB_USERNAME }}
          password: ${{ secrets.DOCKERHUB_TOKEN }}
      - name: Build and push Docker image (branch)
        uses: docker/build-push-action@v7
        with:
          context: ./app_python
          file: ./app_python/Dockerfile
          push: true
          tags: |
            ${{ secrets.DOCKERHUB_USERNAME }}/devops-app-py:${{ steps.version.outputs.branch_tag }}
            ${{ secrets.DOCKERHUB_USERNAME }}/devops-app-py:${{ steps.version.outputs.branch_dev_tag }}
            ${{ secrets.DOCKERHUB_USERNAME }}/devops-app-py:dev

  build-and-push:
    if: github.event.pull_request.merged == true
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v6
      - name: Derive lab version tag from merged branch
        id: version
        run: |
          source_branch="${{ github.event.pull_request.head.ref }}"
          if [[ "$source_branch" =~ ([0-9]+) ]]; then
            lab_number="${BASH_REMATCH[1]}"
            lab_number=$((10#$lab_number))
            echo "version_tag=1.${lab_number}" >> "$GITHUB_OUTPUT"
          else
            echo "Failed to extract lab number from merged branch: $source_branch" >&2
            exit 1
          fi
      - name: Log in to Docker Hub
        uses: docker/login-action@v4
        with:
          username: ${{ secrets.DOCKERHUB_USERNAME }}
          password: ${{ secrets.DOCKERHUB_TOKEN }}
      - name: Build and push Docker image
        uses: docker/build-push-action@v7
        with:
          context: ./app_python
          file: ./app_python/Dockerfile
          push: true
          tags: |
            ${{ secrets.DOCKERHUB_USERNAME }}/devops-app-py:${{ steps.version.outputs.version_tag }}
            ${{ secrets.DOCKERHUB_USERNAME }}/devops-app-py:latest