Test multi platform image

Signed-off-by: Christian Richter <crichter@suse.com>

.github/workflows/docker-image.yml

@@ -14,7 +14,7 @@ jobs:
     env:
       DOCKER_REGISTRY: ghcr.io
       DOCKER_IMAGE: dragonchaser/motsognir
-      DOCKER_TARGET_PLATFORM: linux/arm/v7
+      DOCKER_TARGET_PLATFORM: "linux/arm/v7,linux/arm64,linux/amd64"
 
     steps:
     - uses: actions/checkout@v2
@@ -31,22 +31,13 @@ jobs:
         echo ::set-output name=docker_platform::${DOCKER_TARGET_PLATFORM}        
         echo ::set-output name=docker_image::${DOCKER_REGISTRY}/${DOCKER_IMAGE}        
         #echo ::set-output name=version::${GITHUB_RUN_NUMBER}    
-        echo ::set-output name=version::latest-arm32v7
+        echo ::set-output name=version::latest
 
     - name: Log into registry
       run: echo "${{ secrets.GITHUB_TOKEN }}" | docker login ghcr.io -u ${{ github.actor }} --password-stdin
       
-    - name: Run Buildx (arm32v7)
+    - name: Run Buildx
       if: success()
       run: |
         cd motsognir
         docker buildx build --platform ${{ steps.prepare.outputs.docker_platform }} --tag ${{ steps.prepare.outputs.docker_image }}:${{steps.prepare.outputs.version }} --file ./Dockerfile.arm32v7 --output type=image,push=true .
-
-    - name: Build the Docker image (amd64)
-      run: |
-        cd motsognir
-        docker build . --file Dockerfile --tag ${{steps.prepare.outputs.docker_image}}:latest
-    - name: Push images
-      run: |
-        docker push ${{steps.prepare.outputs.docker_image}}:latest
-        #docker push ${{steps.prepare.outputs.docker_image}}:latest-arm32v7