깃허브 패키지 레지스터에 matrix를 이용해 arm64, amd64 공용 이미지를 빌드하고 푸시함

gh-image-bp.yml

name: BUILD and PUSH to GHR

on:
  workflow_dispatch:
  push:
    branches: ["main"]

env:
  REGISTRY: ghcr.io
  REGISTRY_IMAGE: ghcr.io/${{ github.repository }}

jobs:
  build:
    runs-on: ubuntu-latest
    permissions:
      contents: read
      packages: write
    steps:
      - name: Checkout
        uses: actions/checkout@v4
        with:
          fetch-depth: 0

      - name: Set up QEMU
        uses: docker/setup-qemu-action@v3

      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v3

      - name: Log in to the Container registry
        uses: docker/login-action@v3
        with:
          registry: ${{ env.REGISTRY }}
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - name: Build and push with Buildx
        uses: docker/build-push-action@v5
        with:
          context: .
          file: ./Dockerfile
          platforms: linux/arm64, linux/amd64
          push: true
          tags: ${{ env.REGISTRY_IMAGE }}:latest, ${{ env.REGISTRY_IMAGE }}:${{ github.sha }}
          cache-from: type=gha
          cache-to: type=gha,mode=max