Merge pull request #1498 from fleeto/build-docker-image

build and push image to docker hub in a  a separate action

.github/workflows/dockerhub-released-image.yml

@@ -0,0 +1,45 @@
+name: released image to dockerhub
+on:
+  release:
+    types:
+      - published
+jobs:
+  publish-image-to-dockerhub::
+    name: publish to DockerHub
+    strategy:
+      matrix:
+        target:
+          - karmada-controller-manager
+          - karmada-scheduler
+          - karmada-descheduler
+          - karmada-webhook
+          - karmada-agent
+          - karmada-scheduler-estimator
+          - karmada-interpreter-webhook-example
+          - karmada-aggregated-apiserver
+    runs-on: ubuntu-18.04
+    steps:
+      - name: checkout code
+        uses: actions/checkout@v2
+        with:
+          # fetch-depth:
+          # 0 indicates all history for all branches and tags.
+          # for `git describe --tags` in Makefile.
+          fetch-depth: 0
+      - name: install Go
+        uses: actions/setup-go@v2
+        with:
+          go-version: 1.17.x
+      - name: install QEMU
+        uses: docker/setup-qemu-action@v1
+      - name: install Buildx
+        uses: docker/setup-buildx-action@v1
+      - name: login to DockerHub
+        uses: docker/login-action@v1
+        with:
+          username: ${{ secrets.DOCKERHUB_USER_NAME }}
+          password: ${{ secrets.DOCKERHUB_TOKEN }}
+      - name: build and publish images
+        env: 
+          VERSION: ${{ github.ref_name }}
+        run: make mp-image-${{ matrix.target }}