eed_docker_python_uv/.github/workflows/publish_docker.yml at main · EED-Solutions/eed_docker_python_uv · GitHub

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name: Publish Docker Image to GHCR

on:
  push:
    branches:
      - main
    tags:
      - 'v*.*.*' # Semantic versioning pattern
  pull_request:
    # This triggers on any PR, but we filter by source branch in the job
    types: [opened, synchronize, reopened]
  workflow_dispatch:

permissions:
  contents: read
  packages: write

jobs:
  build-and-push:
    runs-on: ubuntu-latest

    steps:
      - uses: actions/checkout@v4

      # Only continue for PRs if the source branch is dev or release
      - name: Check PR source branch
        if: github.event_name == 'pull_request'
        run: |
          echo "PR source branch: ${{ github.head_ref }}"
          if [[ "${{ github.head_ref }}" != "dev" && "${{ github.head_ref }}" != "release" ]]; then
            echo "Not a PR from dev or release branch. Skipping workflow."
            exit 1
          fi

      - name: Log in to GHCR
        uses: docker/login-action@v3
        with:
          registry: ghcr.io
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - name: Build and push Docker image
        run: |
          IMAGE_NAME=ghcr.io/eed-solutions/eed_docker_python_uv
          TAG=latest
          SHOULD_BUILD_PUSH=false

          echo "GITHUB_EVENT_NAME: $GITHUB_EVENT_NAME"
          echo "GITHUB_REF: $GITHUB_REF"
          echo "GITHUB_HEAD_REF: $GITHUB_HEAD_REF"

          # Determine context: PR or push/tag
          if [[ "$GITHUB_EVENT_NAME" == "pull_request" ]]; then
            BRANCH_NAME="$GITHUB_HEAD_REF"
            REF_TYPE="pr"
          elif [[ "$GITHUB_REF" == refs/heads/* ]]; then
            BRANCH_NAME="${GITHUB_REF#refs/heads/}"
            REF_TYPE="branch"
          elif [[ "$GITHUB_REF" == refs/tags/* ]]; then
            BRANCH_NAME="${GITHUB_REF#refs/tags/}"
            REF_TYPE="tag"
          else
            BRANCH_NAME=""
            REF_TYPE=""
          fi
          echo "REF_TYPE: $REF_TYPE"
          echo "BRANCH_NAME: $BRANCH_NAME"

          # Determine tag and build indicator based on context
          if [[ "$REF_TYPE" == "branch" || "$REF_TYPE" == "pr" ]]; then
            case "$BRANCH_NAME" in
              "main")
                TAG=main
                SHOULD_BUILD_PUSH=true
                ;;
              "dev")
                TAG=dev
                SHOULD_BUILD_PUSH=true
                ;;
              "release")
                TAG=release
                SHOULD_BUILD_PUSH=true
                ;;
              *)
                TAG="$BRANCH_NAME"
                ;;
            esac
          elif [[ "$REF_TYPE" == "tag" ]]; then
            TAG="$BRANCH_NAME"
            if [[ "$BRANCH_NAME" =~ ^v[0-9]+\.[0-9]+\.[0-9]+$ ]]; then
              SHOULD_BUILD_PUSH=true
            fi
          fi

          echo "Determined TAG: $TAG"
          echo "SHOULD_BUILD_PUSH: $SHOULD_BUILD_PUSH"

          # Build and push the image if indicated
          if [[ "$SHOULD_BUILD_PUSH" == "true" ]]; then
            docker build -t $IMAGE_NAME:$TAG -f .devcontainer/Dockerfile .
            docker push $IMAGE_NAME:$TAG
          else
            echo "Skipping build and push: not a main/dev/release branch or semantic version tag."
          fi

          # Push additional 'latest' tag for semantic version tags
          if [[ "${GITHUB_REF}" == refs/tags/v* ]]; then
            docker tag $IMAGE_NAME:$TAG $IMAGE_NAME:latest
            docker push $IMAGE_NAME:latest
          fi