Push dockerhub description

.github/workflows/docker-hub-build-push-on-release.yml

@@ -1,28 +1,50 @@
-name: build docker image and push to docker hub on release
+name: Build docker image and push to docker hub on release
 
 on:
   release:
     types: # This configuration does not affect the page_build event above
       - created
-
+env:
+  PLATFORMS: "linux/amd64,linux/386,linux/arm64,linux/arm/v7,linux/arm/v6"
+  
 jobs:
-  build:
+  build_and_push:
+    name: Build and push Docker image
     runs-on: ubuntu-latest
     steps:
-      - name: checkout code
+      - name: Checkout code
         uses: actions/checkout@v2
-      - name: extract tag string
-        run: echo "RELEASE_VERSION=${GITHUB_REF#refs/*/}" >> $GITHUB_ENV
-      - name: install buildx
-        id: buildx
-        uses: crazy-max/ghaction-docker-buildx@v1
-        with:
-          version: latest
-      - name: login to docker hub
-        run: echo "${{ secrets.DOCKER_PASSWORD }}" | docker login -u "${{ secrets.DOCKER_USERNAME }}" --password-stdin
-      - name: build and push the image
+        
+      - name: Extract tag string
+        id: git
+        shell: bash
         run: |
-          docker buildx build --push \
-            --tag shizunge/endlessh-go:latest \
-            --tag shizunge/endlessh-go:$RELEASE_VERSION \
-            --platform linux/amd64,linux/arm/v7,linux/arm64 .
+          RELEASE_VERSION=${GITHUB_REF#refs/*/}
+          echo "::set-output name=image_tag::${RELEASE_VERSION}"
+          echo "Action image_tag=${RELEASE_VERSION}"
+          
+      - name: Login to docker hub
+        uses: docker/login-action@v1.12.0
+        with:
+          username: ${{ secrets.DOCKERHUB_USERNAME }}
+          password: ${{ secrets.DOCKERHUB_PASSWORD }}
+          
+      - name: Install buildx
+        uses: docker/setup-buildx-action@v1.6.0
+        
+      - name: Build and push ${{ github.repository }}:${{ steps.git.outputs.image_tag }}
+        uses: docker/build-push-action@v2.9.0
+        with:
+          platforms: ${{ env.PLATFORMS }}
+          push: true
+          tags: |
+            ${{ github.repository }}:${{ steps.git.outputs.image_tag }}
+            ${{ github.repository }}:latest
+
+      - name: Update dockerhub description
+        uses: peter-evans/dockerhub-description@v2.4.3
+        with:
+          username: ${{ secrets.DOCKERHUB_USERNAME }}
+          password: ${{ secrets.DOCKERHUB_PASSWORD }}
+          repository: ${{ github.repository }}
+          short-description: ${{ github.event.repository.description }}