Add github action

.workflow/build&push.yaml

@@ -0,0 +1,53 @@
+# This workflow uses actions that are not certified by GitHub.
+# They are provided by a third-party and are governed by
+# separate terms of service, privacy policy, and support
+# documentation.
+
+name: Publish Docker image
+
+on:
+  push:
+    tags:
+      - 'v*'
+
+jobs:
+  push_to_registry:
+    name: Push Docker image to Docker Hub
+    runs-on: ubuntu-latest
+    steps:
+      - name: Extract Version
+        id: version_step
+        run: |
+          echo "##[set-output name=version;]NACOS_VERSION=${GITHUB_REF#$"refs/tags/v"}"
+      - name: Check out the repo
+        uses: actions/checkout@v2
+        with:
+          fetch-depth: 1
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v1
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v1
+
+      - name: Log in to Docker Hub
+        uses: docker/login-action@v1
+        with:
+          username: ${{ secrets.DOCKER_USERNAME }}
+          password: ${{ secrets.DOCKER_PASSWORD }}
+
+      - name: Extract metadata (tags, labels) for Docker
+        id: meta
+        uses: docker/metadata-action@v3
+        with:
+          images: nacos/nacos-server
+
+      - name: Build and push Docker image
+        uses: docker/build-push-action@v2.3.0
+        with:
+          context: build
+          file: build/Dockerfile
+          push: true
+          platforms: linux/amd64,linux/arm64
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}
+          build-args: ${{steps.version_step.outputs.version}}