Build multiarch Docker image

.github/workflows/docker.yaml

@@ -12,18 +12,23 @@ jobs:
     steps:
       - uses: actions/checkout@v2
 
-      - name: Login to registry
-        run: |
-          docker login -u $DOCKER_USERNAME -p $DOCKER_PASSWORD $DOCKER_REGISTRY_URL
-        env:
-          DOCKER_REGISTRY_URL: docker.pkg.github.com
-          DOCKER_USERNAME: ${{ github.actor }}
-          DOCKER_PASSWORD: ${{ secrets.GITHUB_TOKEN }}
+      - name: Setup QEMU
+        uses: docker/setup-qemu-action@v1
 
-      - name: Build docker image
-        run: |
-          docker build . -f alpine.Dockerfile --pull --no-cache -t docker.pkg.github.com/napi-rs/napi-rs/nodejs-rust:lts-alpine
+      - name: Setup Docker Buildx
+        uses: docker/setup-buildx-action@v1
 
-      - name: Push docker image
-        run: |
-          docker push docker.pkg.github.com/napi-rs/napi-rs/nodejs-rust:lts-alpine
+      - name: Login to GitHub Packages Docker Registry
+        uses: docker/login-action@v1
+        with:
+          registry: docker.pkg.github.com
+          username: ${{ github.repository_owner }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Build and push
+        uses: docker/build-push-action@v2
+        with:
+          file: alpine.Dockerfile
+          platforms: linux/amd64,linux/arm64
+          push: true
+          tags: docker.pkg.github.com/${{ github.repository }}/nodejs-rust:lts-alpine