UPSTREAM: 49230: use informers for quota calculation

[derekwaynecarr]

xref: https://bugzilla.redhat.com/show_bug.cgi?id=1473042
bug 1473042

see: kubernetes/kubernetes#49230

[derekwaynecarr]

[test]

[openshift-bot]

Evaluated for origin test up to fd5ec6d

[derekwaynecarr]

@deads2k - please review.

/cc @eparis @smarterclayton -- assuming we list all the referenced resources in our existing controller, this will improve the responsiveness of resource quota controller with out having a major memory impact. opening this to evaluate for release-3.6 or soon after.

[smarterclayton]

I can't see how this is worse than today, so +1 by me.

[derekwaynecarr]

@smarterclayton - are we listing configmaps today in controllers, that is my only concern right now, but ran out of time to check at moment.

[smarterclayton]

GC lists everything

[openshift-bot]

continuous-integration/openshift-jenkins/test SUCCESS (https://ci.openshift.redhat.com/jenkins/job/test_pull_request_origin/3306/) (Base Commit: 12575c5) (PR Branch Commit: fd5ec6d)

[deads2k]

I'm assuming it picked clean? If so, lgtm.

[derekwaynecarr]

@deads2k
i had to fixup for older machinery stuff, but yeah, clean for the most part.

[merge][severity:blocker]

[openshift-bot]

continuous-integration/openshift-jenkins/merge Waiting: You are in the build queue at position: 4

[openshift-bot]

Evaluated for origin merge up to fd5ec6d