docker.yml

name: Create and publish a Docker image
on:
  push:
    branches: [ "master" ]
  pull_request:
    branches: [ "master" ]

env:
  REGISTRY: ghcr.io
  IMAGE_NAME: ${{ github.repository }}

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

    permissions:
      contents: read
      packages: write

    steps:

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

      - name: Setup JVM
        uses: actions/setup-java@v4
        with:
          distribution: temurin
          java-version: 21
          cache: sbt

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

      - name: Extract metadata (tags, labels) for Docker
        id: meta
        uses: docker/metadata-action@9ec57ed1fcdbf14dcef7dfbe97b2010124a938b7
        with:
          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}

      - name: Build and push Docker image
        run: sbt Docker/publish