with-kubectl-port-forward

As the name implies, this tool executes kubectl port-forward for the duration of the supplied command. For example, Keppel has a PostgreSQL database that can be reached passwordless on localhost, so the following works to log into the DB:

$ with-kubectl-port-forward service/keppel-postgresql 5432:5432 -- psql -U postgres -d keppel -h 127.0.0.1 -p 5432

This is the same as:

1. running kubectl port-forward service/keppel-postgresql 5432:5432 in one shell
2. running psql -U postgres -d keppel -h 127.0.0.1 -p 5432 in another shell
3. terminating kubectl once psql is done

Installation

Clone the repo, then run make install in it.

Usage

$ with-kubectl-port-forward <port-forward-args>... -- <command>...

The exit status will be zero on success, or equivalent to the exit status of the first failing child otherwise.