docker-build.yaml

name: Docker Image CI

on:
  push:
    branches:
      - main

env:
  REGISTRY: ghcr.io
  # github.repository as <account>/<repo>
  IMAGE_NAME: ${{ github.repository }}
  # Comma separated list of platforms to build the image for.
  PLATFORMS: linux/amd64

jobs:
  build:
    runs-on: ubuntu-latest
    steps:
      - name: checkout
        uses: actions/checkout@v3
      - name: Set up QEMU
        uses: docker/setup-qemu-action@v2
      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v2
      - name: Login to GitHub Container Registry
        uses: docker/login-action@v2
        with:
          registry: ${{ env.REGISTRY }}
          username: ${{github.actor}}
          password: ${{secrets.GITHUB_TOKEN}}
      - name: Extract image metadata
        id: meta
        uses: docker/metadata-action@v4
        with:
          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
          tags: |
            type=sha
      - name: Build and push
        uses: docker/build-push-action@v4
        with:
          context: .
          platforms: ${{ env.PLATFORMS }}
          push: true
          tags: ${{ steps.meta.outputs.tags }}
          labels: ${{ steps.meta.outputs.labels }}