deploy.yml

name: "deploy"

on:
  push:
    branches: ["main"]

concurrency:
  cancel-in-progress: true
  group: "${{ github.workflow }}-${{ github.event.number || github.ref }}"

jobs:
  deploy:
    runs-on: "ubuntu-latest"
    outputs:
      image-json: "${{ steps.publish.outputs.imageJson }}" # output produced from printJibMeta Gradle task
    steps:
      - name: "checkout"
        uses: "actions/checkout@v4"
      - name: "setup java"
        uses: "actions/setup-java@v4"
        with:
          distribution: "zulu"
          java-version: "17"
      - name: "check"
        run: ./gradlew check
      - name: "login"
        uses: "docker/login-action@v3"
        with:
          registry: "ghcr.io"
          username: "${{ github.actor }}"
          password: "${{ secrets.GITHUB_TOKEN }}"
      - name: "publish"
        id: publish
        run: "./gradlew jib -Djib.console=plain"
  promote:
    needs: "deploy"
    runs-on: "ubuntu-latest"
    environment: "promoted"
    steps:
      - name: "login"
        uses: "docker/login-action@v3"
        with:
          registry: "ghcr.io"
          username: "${{ github.actor }}"
          password: "${{ secrets.GITHUB_TOKEN }}"
      - name: "tag"
        env:
          IMAGE_ID: "${{ fromJSON(needs.deploy.outputs.image-json).imageId }}"
          IMAGE_NAME: "${{ fromJSON(needs.deploy.outputs.image-json).image }}"
          PROMOTED_TAG_NAME: "stable"
        run: |
          skopeo copy -a "docker://$IMAGE_NAME@$IMAGE_ID" "docker://$IMAGE_NAME:$PROMOTED_TAG_NAME"