kevin85421 opened a new pull request #588:
URL: https://github.com/apache/submarine/pull/588
### What is this PR for?
Execute the following command via Golang out-of-cluster
```
kubectl port-forward --address 0.0.0.0 -n ${Your_Namespace} service/traefik
32080:80
```
Reference:
(1) https://gianarb.it/blog/programmatically-kube-port-forward-in-go
(2) https://github.com/minio/operator/blob/master/kubectl-minio/cmd/proxy.go
### What type of PR is it?
[Feature]
### Todos
* Execute port-forwarding automatically with Golang in-cluster
* The function `k8sutil.ServicePortForwardPort(context.TODO(),
namespace, "traefik", 32080, 80, color.FgGreen)` does not work in-cluster.
* (In submarine-operator pod) `curl 127.0.0.1:32080` --> Yes
* (Local Chrome browser) 127.0.0.1:32080 --> 404
* We need to forward the request from 127.0.0.1:32080 to the
submarine-operator pod.
### What is the Jira issue?
https://issues.apache.org/jira/browse/SUBMARINE-824
### How should this be tested?
https://user-images.githubusercontent.com/20109646/118227081-86001080-b4ba-11eb-9274-6a053954f5f7.mov
### Screenshots (if appropriate)
### Questions:
* Do the license files need updating? No
* Are there breaking changes for older versions? No
* Does this need new documentation? No
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