Change the handling of ConfigMap creation

[janosi]

What this PR does / why we need it:

Requested in #4969 at #4969 (comment)
When a new CM is created Ingress definitions are checked for reference to the new CM an Ingress sync is triggered if such reference is found.

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

Which issue/s this PR fixes

How Has This Been Tested?

Checklist:

• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I've read the CONTRIBUTION guide
• I have added tests to cover my changes.
• All new and existing tests passed.

[k8s-ci-robot]

Hi @janosi. Thanks for your PR.

I'm waiting for a kubernetes member to verify that this patch is reasonable to test. If it is, they should reply with /ok-to-test on its own line. Until that is done, I will not automatically test new commits in this PR, but the usual testing commands by org members will still work. Regular contributors should join the org to skip this step.

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[aledbf]

/ok-to-test

[codecov-io]

Codecov Report

❗ No coverage uploaded for pull request base (master@2c5819e). Click here to learn what that means.
The diff coverage is 41.17%.

@@            Coverage Diff            @@
##             master    #5052   +/-   ##
=========================================
  Coverage          ?   58.49%           
=========================================
  Files             ?       88           
  Lines             ?     6865           
  Branches          ?        0           
=========================================
  Hits              ?     4016           
  Misses            ?     2409           
  Partials          ?      440

Impacted Files	Coverage Δ
internal/ingress/controller/store/store.go	57.02% <41.17%> (ø)

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[aledbf]

/lgtm
/approve

[aledbf]

@janosi thanks!

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: aledbf, janosi

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• OWNERS [aledbf]

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[ElvinEfendi]

Before this PR there was no reference to AnnotationsReferencesConfigmap, does this mean the PR is actually fixing a regression of not watching the configmaps listed in

ingress-nginx/internal/ingress/annotations/parser/main.go

Line 136 in 9890f83

var configmapAnnotations = sets.NewString(

?

@janosi any chance you can add e2e test for this regression?

[janosi]

@ElvinEfendi Yes, that is my understanding. Let's see if I can work on that e2e.