add arm image build (#24)

* build arm image

* pin sdk version to preview 2 to avoid a bug - dotnet/sdk#28971

* comment

.github/workflows/docker.yml

@@ -5,26 +5,26 @@ on:
     tags:
       - 'v*'
   workflow_dispatch:
-        
+
 jobs:
   build_docker_image:
     runs-on: ubuntu-latest
     steps:
     - name: Check out the repo
       uses: actions/checkout@v4
-      
+
     - 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 Docker Hub
       uses: docker/login-action@v3
       with:
         username: ${{ secrets.DOCKER_USERNAME }}
         password: ${{ secrets.DOCKER_PASSWORD }}
-        
+
     - name: Extract metadata (tags, labels) for Docker
       id: meta
       uses: docker/metadata-action@v4
@@ -40,8 +40,7 @@ jobs:
       uses: docker/build-push-action@v5
       with:
         context: .
-        platforms: linux/amd64
-        # platforms: linux/amd64,linux/arm64
+        platforms: linux/amd64,linux/arm64
         file: ./Quali.Torque.Cli/Dockerfile
         push: true
         tags: ${{ steps.meta.outputs.tags }}

Quali.Torque.Cli/Dockerfile

@@ -1,4 +1,6 @@
-FROM mcr.microsoft.com/dotnet/sdk:7.0 AS build-env
+# The version is pinned because of a bug (https://github.com/dotnet/sdk/issues/28971#issuecomment-1309328718)
+FROM mcr.microsoft.com/dotnet/sdk:7.0.100-preview.2 AS build-env
+
 LABEL org.opencontainers.image.source="https://github.com/QualiNext/torque-cli"
 WORKDIR /Quali.Torque.Cli