* Enable plugin resolution as subcommand for selected builtin commands
This PR adds external plugin resolution as subcommand for selected builtin
commands if subcommand does not exist as builtin.
In it's alpha stage, this will only be enabled for create command and
this feature is hidden behind `KUBECTL_ENABLE_CMD_SHADOW` environment variable.
* Rename parameter to exactMatch to better reflect
Kubernetes-commit: a901bb630b5a353898c1b35df582a7faeef160a0
Cobra adds the commands 'help', '__complete' and '__completeNoDesc'
inside rootCmd.Execute(), however, when kubectl decides if it should
lookup plugins, rootCmd.Execute() had not been called yet. Therefore,
the call to cmd.Find(cmdPathPieces) done by kubectl does not find the
commands added by Cobra. To fix this we must check for them explicitly.
Signed-off-by: Marc Khouzam <marc.khouzam@montreal.ca>
Kubernetes-commit: e703b3d25377e763b117805b3d88fe7236f3ff76
Arda Güçlü
inosato
Sam Snarr
Maciej Szulik
Marc Khouzam
Sean Sullivan