use telepresence to debug remote service

Signed-off-by: runzexia <runzexia@yunify.com>

docs/en/guides/How-to-connect-remote-service.md

@@ -0,0 +1,33 @@
+# Connect to remote service with telepresence
+
+Telepresence is an open source tool that lets you run a single service locally, while connecting that service to a remote Kubernetes cluster.
+
+We can use telepresence to help us run kubesphere apiserver locally.
+
+
+## 1. Install telepresence
+
+You can read the [official installation documentation](https://www.telepresence.io/reference/install.html) to install telepresence.
+
+## 2. Run telepresence
+
+Open your command line and run the command `telepresence`, telepresence will help you to enter a bash connected to a remote kubernetes cluster.
+
+Test telepresence with KubeSphere apigateway:
+```bash
+
+@kubernetes-admin@cluster.local|bash-3.2$ curl http://ks-apigateway.kubesphere-system
+
+401 Unauthorized
+```
+
+## 3. Run your module in bash
+
+Now your module can easily connect to remote services.
+
+```bash
+go run cmd/ks-apiserver/apiserver.go
+```
+## 4. Further more
+
+You can use telepresence to replace services in the cluster for debugging. For more information, please refer to the [official documentation](https://www.telepresence.io/discussion/overview).

docs/en/guides/How-to-run-KubeSphere-core.md

@@ -33,6 +33,10 @@ During the development of KubeSphere apiserver, you must configure at least the
 
 Below is a sample configuration of Kubesphere apiserver:
 
+> Note: In the default configuration, we use kubernetes service name to access the service. 
+> In a remote cluster, you may need to use external network exposure to connect to the cluster's internal services.
+> Or you can refer to the [documentation](How-to-connect-remote-service.md) to use `telepresence` to connect to remote services
+
 ```yaml
 kubernetes:
   kubeconfig: "/Users/kubesphere/.kube/config"