Additions and tweaks to the kubectl CLI.

These are some personal aliases, shortcuts, and extensions that make (my) work with the Kubernetes command-line utility kubectl easier and faster. Some of them may be specific to my environment and workflow, but maybe someone finds a valuable nugget in there.

Download all / some selected extensions (note that some have dependencies, though) and put them somewhere in your PATH. You can then invoke them via kubectl-SUBCOMMAND.

It is recommended to also use the (Bash, but should also work in Korn shell and Dash) shell functions (e.g. in your .bashrc) found at shell/wrappers.sh to transparently invoke the extensions in the same way as the built-in Kubernetes commands, via kubectl SUBCOMMAND.

Note that Kubernetes also provides its own extension mechanism; these need to provide a YAML plugin descriptor, get command-line arguments already parsed, and are invoked through kubectl plugin PLUGIN-COMMAND. I don't intend to convert mine into that format, because parsing effort is minimal, and I prefer to seamlessly blend in with (or even override) built-in subcommands.