matrix build

.github/workflows/build-matrix.yml

@@ -0,0 +1,40 @@
+name: Docker Build
+
+on:
+  push
+
+jobs:
+  build:
+    runs-on: ubuntu-latest 
+    permissions:
+      contents: write
+    strategy:
+      fail-fast: false
+      matrix:
+        platform:
+          - linux/amd64
+          - linux/arm64
+
+    steps:
+    -
+      name: Prepare
+      run: |
+        platform=${{ matrix.platform }}
+        echo "PLATFORM_PAIR=${platform//\//-}" >> $GITHUB_ENV      
+    - name: Check out code
+      uses: actions/checkout@v3
+    - name: Set up QEMU
+      uses: docker/setup-qemu-action@v3    
+    - name: Set up Docker Buildx
+      uses: docker/setup-buildx-action@v3
+
+    -
+      name: Build and push by digest
+      id: build
+      uses: docker/build-push-action@v5
+      with:
+        context: .
+        platforms: ${{ matrix.platform }}
+        labels: ${{ steps.meta.outputs.labels }}
+        # outputs: type=image,name=${{ env.REGISTRY_IMAGE }},push-by-digest=true,name-canonical=true,push=true
+