Add initContainerResources Helm configuration

[oseoin]

Proposed changes

Issue: 3804

This adds a new ResourceRequirements value which can be used for setting the resource requests/limits on the init container which is used for populating the emptyDir mounts used for writing when readOnlyRootFilesystem is set to true.

Defaults:

  ## The resources for the Ingress Controller init container which is used when readOnlyRootFilesystem is set to true.
  initContainerResources:
    requests:
      cpu: 100m
      memory: 128Mi
    # limits:
    #   cpu: 1
    #   memory: 1Gi

Example override:

  initContainerResources:
    requests:
      cpu: 50m
      memory: 32Mi
    limits:
      cpu: 50m
      memory: 64Mi

Checklist

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• I have read the CONTRIBUTING doc
• I have added tests that prove my fix is effective or that my feature works
• I have checked that all unit tests pass after adding my changes
• I have updated necessary documentation
• I have rebased my branch onto main
• I will ensure my PR is targeting the main branch and pulling from my branch from my own fork

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (6d85f27) 51.96% compared to head (9857943) 51.96%.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #4651   +/-   ##
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  Coverage   51.96%   51.96%           
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  Files          59       59           
  Lines       16972    16972           
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  Hits         8820     8820           
  Misses       7857     7857           
  Partials      295      295           

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[jjngx]

👍🏻