Update workflows to release images to dockerhub

Signed-off-by: RainbowMango <qdurenhongcai@gmail.com>

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

@@ -1,41 +1,45 @@
-name: Build Images and push them to Dockerhub
+name: released image to dockerhub
 on:
   release:
     types:
       - published
 jobs:
-  release-image:
+  publish-image-to-dockerhub::
-    name: Release images
+    name: publish to DockerHub
     strategy:
       matrix:
         target:
-          - karmada-aggregated-apiserver
           - 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
+      - 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: Set up QEMU
+      - name: install QEMU
         uses: docker/setup-qemu-action@v1
-      - name: Set up Buildx
+      - name: install Buildx
         uses: docker/setup-buildx-action@v1
-      - name: Login to DockerHub
+      - name: login to DockerHub
         uses: docker/login-action@v1
         with:
           username: ${{ secrets.DOCKERHUB_USER_NAME }}
           password: ${{ secrets.DOCKERHUB_TOKEN }}
-      - name: Build and push
+      - name: build and publish images
         env: 
           VERSION: ${{ github.ref_name }}
         run: make mp-image-${{ matrix.target }}

cluster/images/general/Dockerfile

@@ -1,10 +0,0 @@
-FROM golang:1.17 as builder
-COPY karmada /code/karmada
-WORKDIR /code/karmada
-RUN make _TARGET_
-
-FROM alpine:3.7
-RUN apk add -u --no-cache ca-certificates
-COPY --from=builder "/code/karmada/_TARGET_" /bin/
-CMD ["/bin/_TARGET_"]
-