build-and-push.yml

name: Build and Push Docker Image

on:
  push:
    branches:
      - master

env:
  DOCKER_USERNAME: ${{ github.actor }}
  DOCKER_IMAGE_NAME: ${{ github.repository }}
  DOCKER_REGISTRY: ghcr.io
  DOCKER_IMAGE_TAG: ${{ github.ref_name }}

jobs:
  build-and-push:
    runs-on: ubuntu-latest
    steps:
      - id: lower-repo
        shell: pwsh
        run: |
          "::set-output name=repository::$($env:DOCKER_IMAGE_NAME.ToLowerInvariant())"
          
      - name: Checkout code
        uses: actions/checkout@v2

      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v2

      - name: Login to Docker registry
        uses: docker/login-action@v1
        with:
          registry: ${{ env.DOCKER_REGISTRY }}
          username: ${{ env.DOCKER_USERNAME }}
          password: ${{ secrets.PAT }}

      - name: Build and Push Docker image
        uses: docker/build-push-action@v4
        with:
          build-args: |
            "SERVER_RELEASE_VERSION=${{ github.sha }}"
          context: .
          push: true
          cache-from: type=gha
          cache-to: type=gha,mode=max
          tags: ${{ env.DOCKER_REGISTRY }}/${{ steps.lower-repo.outputs.repository }}:${{env.DOCKER_IMAGE_TAG}}
          labels: org.opencontainers.image.source=https://github.com/${{steps.lower-repo.outputs.repository}}