端口转发是 kubectl 的一个子命令，通过 kubectl port-forward 可以将本地端口转发到指定的 Pod。

Pod 端口转发

可以将本地端口转发到指定 Pod 的端口。

  1. # Listen on ports 5000 and 6000 locally, forwarding data to/from ports 5000 and 6000 in the pod
  2. kubectl port-forward mypod 5000 6000
  4. # Listen on port 8888 locally, forwarding to 5000 in the pod
  5. kubectl port-forward mypod 8888:5000
  7. # Listen on a random port locally, forwarding to 5000 in the pod
  8. kubectl port-forward mypod :5000
  10. # Listen on a random port locally, forwarding to 5000 in the pod
  11. kubectl port-forward mypod 0:5000

服务端口转发

也可以将本地端口转发到服务、复制控制器或者部署的端口。

  1. # Forward to deployment
  2. kubectl port-forward deployment/redis-master 6379:6379
  4. # Forward to replicaSet
  5. kubectl port-forward rs/redis-master 6379:6379
  7. # Forward to service
  8. kubectl port-forward svc/redis-master 6379:6379