Github Action Workflow to build and push an image to both GH and Scaleway registries

container-image.yml

name: Container image

on:
  push:
    branches: [ main ]

jobs:
  build-and-push:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout Repository
        uses: actions/checkout@v3
      - name: Set up QEMU
        uses: docker/setup-qemu-action@v1
      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v1
      - name: Login to GitHub Container Registry
        uses: docker/login-action@v1
        with:
          registry: ghcr.io
          username: ${{ github.repository_owner }}
          password: ${{ secrets.GITHUB_TOKEN }}
      - name: Login to Scaleway Container Registry
        uses: docker/login-action@v1
        with:
          registry: ${{ secrets.SCALEWAY_REGISTRY_ENDPOINT }}
          username: ${{ secrets.SCALEWAY_REGISTRY_USERNAME }}
          password: ${{ secrets.SCALEWAY_REGISTRY_PASSWORD }}
      - name: Build and push
        uses: docker/build-push-action@v2
        with:
          context: .
          platforms: linux/amd64,linux/arm64
          push: true
          tags: |
            ghcr.io/amessinger/${{ github.event.repository.name }}:latest
            ${{ secrets.SCALEWAY_REGISTRY_ENDPOINT }}/${{ github.event.repository.name }}:latest
          cache-from: type=registry,ref=ghcr.io/amessinger/${{ github.event.repository.name }}:latest
          cache-to: type=inline