[feature] use buildx to produce multi arch image kubesphere#3683

Signed-off-by: lxm <lxm.xupt@gmail.com>

.github/workflows/build-multiarch.yaml

@@ -0,0 +1,48 @@
+name: BuildMultiArch
+
+on:
+  push:
+    branches:
+      - 'master'
+      - 'release*'
+      - '*'
+    tags:
+      - 'v*'
+  pull_request:
+    branches:
+      - 'master'
+      - 'release*'
+
+jobs:
+  build:
+    name: Build
+    runs-on: ubuntu-latest
+    env:
+      GO111MODULE: on
+    steps:
+      - name: Check out code into the Go module directory
+        uses: actions/checkout@v2
+        with:
+          fetch-depth: 0
+
+      - name: "Set up QEMU"
+        uses: docker/setup-qemu-action@v1
+        with:
+          platforms: all
+
+      - name: "Set up Docker buildx"
+        uses: "docker/setup-buildx-action@v1"
+
+      - name: Get branch name
+        id: extract_branch
+        shell: bash
+        run: echo "##[set-output name=branch;]$(echo ${GITHUB_REF#refs/heads/})"
+
+      - name: Build and push docker images
+        env:
+          DOCKER_USERNAME: ${{ secrets.DOCKER_USERNAME }}
+          DOCKER_PASSWORD: ${{ secrets.DOCKER_PASSWORD }}
+        # if: github.event_name == 'push'
+        run: |
+          echo ${{ secrets.DOCKER_PASSWORD }} | docker login -u ${{ secrets.DOCKER_USERNAME }} --password-stdin
+          bash hack/docker_build_multiarch.sh ${{ steps.extract_branch.outputs.branch }}