$ kubectl proxy -h
To proxy all of the kubernetes api and nothing else, use: 

  $ kubectl proxy --api-prefix=/
  
To proxy only part of the kubernetes api and also some static files: 

  $ kubectl proxy --www=/my/files --www-prefix=/static/ --api-prefix=/api/
  
The above lets you 'curl localhost:8001/api/v1/pods'. 

To proxy the entire kubernetes api at a different root, use: 

  $ kubectl proxy --api-prefix=/custom/
  
The above lets you 'curl localhost:8001/custom/api/v1/pods'

Examples:
  # Run a proxy to kubernetes apiserver on port 8011, serving static content from ./local/www/
  kubectl proxy --port=8011 --www=./local/www/
  
  # Run a proxy to kubernetes apiserver on an arbitrary local port.
  # The chosen port for the server will be output to stdout.
  kubectl proxy --port=0
  
  # Run a proxy to kubernetes apiserver, changing the api prefix to k8s-api
  # This makes e.g. the pods api available at localhost:8001/k8s-api/v1/pods/
  kubectl proxy --api-prefix=/k8s-api
...

 kubectl apply -h
Apply a configuration to a resource by filename or stdin. This resource will be created if it doesn't exist yet. To use
'apply', always create the resource initially with either 'apply' or 'create --save-config'.

JSON and YAML formats are accepted.

Alpha Disclaimer: the --prune functionality is not yet complete. Do not use unless you are aware of what the current
state is. See https://issues.k8s.io/34274.

Examples:
[...]

$ kubectl rollout -h
Manage a deployment using subcommands like "kubectl rollout undo deployment/abc"

Examples:
[...]