Move listen logic to go

[aledbf]

What this PR does / why we need it:

Which issue this PR fixes (optional, in fixes #<issue number>(, fixes #<issue_number>, ...) format, will close that issue when PR gets merged): fixes #

Special notes for your reviewer:

[codecov-io]

Codecov Report

Merging #4439 into master will increase coverage by 0.15%.
The diff coverage is 61.7%.

@@            Coverage Diff             @@
##           master    #4439      +/-   ##
==========================================
+ Coverage   58.67%   58.83%   +0.15%     
==========================================
  Files          88       88              
  Lines        6582     6695     +113     
==========================================
+ Hits         3862     3939      +77     
- Misses       2291     2312      +21     
- Partials      429      444      +15

Impacted Files	Coverage Δ
internal/ingress/controller/template/template.go	80.5% <61.7%> (-2.5%)	⬇️

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[aledbf]

/test pull-ingress-nginx-test

[ElvinEfendi]

/lgtm

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

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

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