Add controller.dnsPolicy to the helm chart

[wd]

Proposed changes

Add controller.dnsPolicy to the values file of the helm chart.
Related issue: #3135

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

[wd]

Regarding the docs from k8s, the default value of dnsPolicy is ClusterFirst. So I set the same in the values file.

$ k explain deployment.spec.template.spec.dnsPolicy
KIND:     Deployment
VERSION:  apps/v1

FIELD:    dnsPolicy <string>

DESCRIPTION:
     Set DNS policy for the pod. Defaults to "ClusterFirst". Valid values are
     'ClusterFirstWithHostNet', 'ClusterFirst', 'Default' or 'None'. DNS
     parameters given in DNSConfig will be merged with the policy selected with
     DNSPolicy. To have DNS options set along with hostNetwork, you have to
     specify DNS policy explicitly to 'ClusterFirstWithHostNet'.

$ k explain daemonset.spec.template.spec.dnsPolicy
KIND:     DaemonSet
VERSION:  apps/v1

FIELD:    dnsPolicy <string>

DESCRIPTION:
     Set DNS policy for the pod. Defaults to "ClusterFirst". Valid values are
     'ClusterFirstWithHostNet', 'ClusterFirst', 'Default' or 'None'. DNS
     parameters given in DNSConfig will be merged with the policy selected with
     DNSPolicy. To have DNS options set along with hostNetwork, you have to
     specify DNS policy explicitly to 'ClusterFirstWithHostNet'.

[codecov-commenter]

Codecov Report

Merging #3136 (b3345ea) into main (15a1fdf) will increase coverage by 0.01%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##             main    #3136      +/-   ##
==========================================
+ Coverage   52.54%   52.56%   +0.01%     
==========================================
  Files          58       58              
  Lines       16069    16069              
==========================================
+ Hits         8444     8446       +2     
+ Misses       7349     7347       -2     
  Partials      276      276              

Impacted Files	Coverage Δ
...ternal/k8s/appprotect/app_protect_configuration.go	86.74% <0.00%> (+0.57%)	⬆️

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[lucacome]

Hi @wd thanks for the PR!