use post install hook to import keycloak config

[longshuicy]

I would have it as an optional hook (post-install) in the helm chart when you install it (not upgrade). I would have a boolean flag that is "install realm" and have it be false. This way the user can decide that you want to import it.

Problem with init is that if you are not careful it will overwrite any changes the user has made.

Originally posted by @robkooper in #669 (comment)

[longshuicy]

quote
I would check to see how you can make it such that you can use some template variables and have the host for ingress be injected in the json document for the realm, as well as minimize it as much as possible.