Port Forwarding

Available for:

The port-forward command allows you to forward traffic from a local port to a destination in the cluster, in a similar way to kubectl port-forward. However, it uses the existing permissions on the target pod, allowing you to port-forward to destinations only accessible from the target. This includes locations outside the cluster like third-party APIs.

You can use the command like so:

mirrord port-forward --target <target-path> -L <local port>:<remote address>:<remote port>

For example, to forward traffic from localhost:8080 to py-serv on port 80 in targetless mode:

mirrord port-forward -L 8080:py-serv:80

More details #

The local port part of the argument is optional, with out the same port will be used locally as on the remote.
Port-forwarding only supports TCP, not UDP.
The remote address can be an IPv4 address or a hostname - hostnames are resolved in the cluster.
Connections are made lazily, so a hostname may fail to resolve only after mirrord attempts to send it data.

In the future, mirrord will also support reverse port-forwarding (tracked by this issue).