add docs

.github/workflows/go.yml

@@ -31,3 +31,27 @@ jobs:
         env:
           GITHUB_TOKEN: ${{ secrets.GH_TOKEN }}
           VERSION: latest
+      - name: set up buildx
+        id: buildx
+        uses: crazy-max/ghaction-docker-buildx@v1
+        with:
+          version: latest
+
+      - name: Login to Docker Hub
+        uses: docker/login-action@v1
+        with:
+          registry: ghcr.io
+          username: ${{ github.repository_owner }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+      - name: build (and publish) main image
+        env:
+          # fork friendly ^^
+          DOCKER_REPO: ghcr.io/${{ github.repository_owner }}/endpoints-operator
+        run: |
+          docker buildx build \
+            --platform linux/amd64,linux/arm64 \
+            --build-arg VERSION=dev \
+            --push \
+            -t ${DOCKER_REPO}:dev \
+            -f Dockerfile \
+            .

README.md

@@ -40,7 +40,10 @@ subsets:
     protocol: TCP
 ```
 
-这样手动设置了对应的
+这样手动设置了对应的endpoint我们就可以通过service进行访问，但是有个缺点就是如果服务挂掉kube-proxy并检测不到对应的IP是否通讯OK。这个controller主要就是解决这两个问题：
+
+1. 设置cr同步对应的service和endpoint
+2. 定时轮训IP如果探针有问题
 
 ## Usage