main.yml

name: Purpur Minecraft Server Docker Image

on:
  push:
    branches: [ main ]
  pull_request:
    branches: [ main ]
  schedule:
    - cron: '24 9 * * 6'
  workflow_dispatch:

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

jobs:
  build:
    runs-on: ubuntu-latest
    permissions:
      contents: read
      packages: write

    steps:
      - name: Checkout Dockerfile
        id: checkout
        uses: actions/checkout@v3

      - name: Setup QEMU
        id: qemu
        uses: docker/setup-qemu-action@v2
        with:
          image: tonistiigi/binfmt:latest
          platforms: all
      
      - name: Setup Docker Buildx
        id: buildx
        uses: docker/setup-buildx-action@v2

      - name: Login to GitHub Container Registry
        id: ghcr
        uses: docker/login-action@v2
        with:
          registry: ${{ env.REGISTRY }}
          username: ${{ github.repository_owner }}
          password: ${{ secrets.GH_TOKEN }}

      - name: Extract metadata (tags, labels) for Docker
        id: meta
        uses: docker/metadata-action@v4
        with:
          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
          flavor: |
            latest=${{ startsWith(github.ref, 'refs/heads/main') }}
            suffix=-${{ github.sha }}

      - name: Build and push Docker image
        id: build
        uses: docker/build-push-action@v3
        with:
          build-args: GH_TOKEN=${{ secrets.GH_TOKEN }}
          context: .
          file: ./Dockerfile
          platforms: linux/arm64/v8
          push: true
          tags: ${{ steps.meta.outputs.tags }}
          labels: ${{ steps.meta.outputs.labels }}