Is there a corresponding command with kubectl
to:
ssh -L8888:rds.aws.com:5432 example.com
kubectl
has port-forward
you can also specify --address
but that strictly requires an IP address.
Short answer, No.
In OpenSSH, local port forwarding is configured using the
-L
option:
ssh -L 80:intra.example.com:80 gw.example.com
This example opens a connection to the
gw.example.com
jump server, and forwards any connection to port 80 on the local machine to port 80 onintra.example.com
.By default, anyone (even on different machines) can connect to the specified port on the SSH client machine. However, this can be restricted to programs on the same host by supplying a bind address:
ssh -L 127.0.0.1:80:intra.example.com:80 gw.example.com
You can read the docs here.
The port-forward
in Kubernetes works only within the cluster, you can forward traffic that will hit specified port to Deployment
or Service
or a Pod
kubectl port-forward TYPE/NAME [options] [LOCAL_PORT:]REMOTE_PORT [...[LOCAL_PORT_N:]REMOTE_PORT_N]
--address
flag is to specify what to listen on 0.0.0.0
means everything localhost
is as name and you can set an IP on which it can be listening on. Documentation is available here, you can also read Use Port Forwarding to Access Applications in a Cluster.