minimal-app.yml

name: minimal-app-workflow

on:
  pull_request:
    paths:
      - minimal-app/**
      - .github/workflows/minimal-app.yml
  push:
    branches:
      - main

env:
  WORKING_DIR: ./minimal-app
  REGISTRY: ghcr.io/octoconsulting
  IMAGE_NAME: keip/minimal-app
  JAVA_VERSION: 17
  GIT_TAG_PREFIX: minimal-app_v

jobs:
  build:
    name: build image
    if: github.ref != 'refs/heads/main'
    runs-on: ubuntu-latest
    defaults:
      run:
        shell: bash
        working-directory: ${{ env.WORKING_DIR }}
    steps:
      - uses: actions/checkout@v4
      - uses: actions/setup-java@v3
        with:
          java-version: "${{ env.JAVA_VERSION }}"
          distribution: "temurin"
      - run: mvn --batch-mode --update-snapshots verify
        name: build image

  release:
    # TODO update to only release on main after done testing
    if: github.ref != 'refs/heads/main'
    runs-on: ubuntu-latest
    defaults:
      run:
        shell: bash
        working-directory: ${{ env.WORKING_DIR }}
    permissions:
      contents: write # create git tags
      packages: write # push docker images
    steps:
      - uses: actions/checkout@v4
      - run: |
          VERSION=$(mvn help:evaluate -Dexpression=project.version -q -DforceStdout)
          echo "VERSION=$VERSION" >> "$GITHUB_OUTPUT"
          echo "TAG_NAME=${{ env.GIT_TAG_PREFIX }}$VERSION" >> "$GITHUB_OUTPUT"
          echo "IMAGE_NAME=${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:$VERSION" >> "$GITHUB_OUTPUT"
          cat $GITHUB_OUTPUT
        id: naming-selector
        name: generate names for artifacts

      - run: |
          ! docker manifest inspect ${{ steps.naming-selector.outputs.IMAGE_NAME }}
        name: confirm image is not already pushed

      - run: |
          git fetch --tags
          ! git rev-parse -q --verify "refs/tags/${{ steps.naming-selector.outputs.TAG_NAME }}"
        name: confirm git tag does not exist

      - uses: actions/setup-java@v3
        with:
          java-version: "${{ env.JAVA_VERSION }}"
          distribution: "temurin"
      - run: mvn --batch-mode --update-snapshots verify
        name: build image

      - uses: docker/login-action@65b78e6e13532edd9afa3aa52ac7964289d1a9c1
        with:
          registry: ${{ env.REGISTRY }}
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - run: docker push ${{ steps.naming-selector.outputs.IMAGE_NAME }}

      - uses: mathieudutour/github-tag-action@v6.1
        id: tag_version
        with:
          custom_tag: ${{ steps.naming-selector.outputs.TAG_NAME }}
          github_token: ${{ secrets.GITHUB_TOKEN }}
          # avoid v prefix before tag
          tag_prefix: ""