Hook pods are not terminated by the deployment controller when a deployment is cancelled or aborted

[smarterclayton]

I would expect that we would preserve the invariant that all hook pods have terminated (are in failed/succeeded/deleted) before we launch a new deployer pod, but that appears that is not the case today. What would we have to change to guarantee that?

@ironcladlou @Kargakis

[pweil-]

This isn't a regression. Can we make this a p2 for 3.2?

[0xmichalis]

The deployment controller can try to identify any preexisting deployers for the config of the deployment (before creating the new deployer) and delete if it finds any.

[smarterclayton]

Yes post 1.2