multi-arch-sample.yml

name: multi-arch image sample

on:
  push:
  workflow_dispatch:

env:
  GITHUB_USERNAME: baronfel
  APP_NAME: multi-arch-sample

jobs:
  create-multiarch-image:
    permissions:
      contents: read
      packages: write
    runs-on: ubuntu-latest
    steps:
    - name: Login to ghcr.io
      uses: docker/login-action@v3
      with:
        registry: ghcr.io
        username: ${{ github.actor }}
        password: ${{ secrets.GITHUB_TOKEN }}

    - name: Get the code
      uses: actions/checkout@v4

    - name: Get .NET
      uses: actions/setup-dotnet@v4

    - name: build the x64 image
      id: build-x64
      working-directory: src/multi-arch-sample
      run: |
        dotnet publish -t:PublishContainer --arch x64 -p ContainerImageTag=latest-x64 -p ContainerRepository=${{github.repository_owner}}/${{env.APP_NAME}} -p ContainerRegistry=ghcr.io /check
        echo "generated_container_name=ghcr.io/${{github.repository_owner}}/${{env.APP_NAME}}:latest-x64" >> $GITHUB_OUTPUT

    - name: build the arm64 image
      id: build-arm64
      working-directory: src/multi-arch-sample
      run: |
        dotnet publish -t:PublishContainer --arch arm64 -p ContainerImageTag=latest-arm64 -p ContainerRepository=${{github.repository_owner}}/${{env.APP_NAME}} -p ContainerRegistry=ghcr.io /check
        echo "generated_container_name=ghcr.io/${{github.repository_owner}}/${{env.APP_NAME}}:latest-arm64" >> $GITHUB_OUTPUT

    - name: create the multi-image manifest
      run: |
        docker manifest create ghcr.io/${{github.repository_owner}}/${{env.APP_NAME}}:latest \
          ${{ steps.build-x64.outputs.generated_container_name }} \
          ${{ steps.build-arm64.outputs.generated_container_name }} \

        docker manifest push ghcr.io/${{github.repository_owner}}/${{env.APP_NAME}}:latest