Any plans to support admission controllers?

[n3wscott]

Context https://kubernetes.io/docs/admin/admission-controllers/

It would be neat to allow a handler the ability to add webhooks to validate and mutate the CR if required, see https://github.com/kubernetes/kubernetes/blob/01c74145c7b655525fcfcd00720b918d926aa298/pkg/apis/admission/types.go#L79

[spahl]

Assigned to Haseeb to take a look.

[anandsinghkunwar]

Isn't it possible to just use the controller-runtime webhooks as is? I am not sure on how it is an operator-sdk feature 😕

[hasbro17]

Since this is already supported via the controller-runtime APIs I would defer to that for now.
https://godoc.org/github.com/kubernetes-sigs/controller-runtime/pkg#hdr-Webhook
https://github.com/kubernetes-sigs/controller-runtime/tree/master/example

We could possibly add some scaffolding and docs to show how to use the webhook server APIs.

[hasbro17]

Closing this in favor of #1217 and #1218
We'll track the feature requests for adding scaffolding/docs for validating and mutating admission webhooks over there.