✨ support proxy between hub cluster and managed cluster

[elgnay]

Summary

Allow user to configure proxy settings in bootstrap hub kubeconfig.

Related issue(s)

Fixes #

[codecov]

Codecov Report

Patch coverage: 36.36% and project coverage change: +0.26% 🎉

Comparison is base (36e389c) 60.44% compared to head (5cccebe) 60.70%.
Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #260      +/-   ##
==========================================
+ Coverage   60.44%   60.70%   +0.26%     
==========================================
  Files         132      128       -4     
  Lines       13694    13640      -54     
==========================================
+ Hits         8277     8280       +3     
+ Misses       4657     4596      -61     
- Partials      760      764       +4     

Flag	Coverage Δ
unit	60.70% <36.36%> (+0.26%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Files Changed	Coverage Δ
pkg/registration/spoke/spokeagent.go	14.32% <19.23%> (+0.49%)	⬆️
...rollers/bootstrapcontroller/bootstrapcontroller.go	51.19% <100.00%> (+0.23%)	⬆️
pkg/registration/clientcert/certificate.go	54.80% <100.00%> (+12.18%)	⬆️

... and 6 files with indirect coverage changes

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[qiujian16]

/approve

would you also check the codecov? it seems it reduces a bit

[openshift-ci]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: elgnay, qiujian16

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Needs approval from an approver in each of these files:

• pkg/operator/OWNERS [qiujian16]
• pkg/registration/OWNERS [elgnay,qiujian16]
• test/OWNERS [elgnay,qiujian16]

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[xuezhaojun]

/lgtm

[xuezhaojun]

/hold

Looks clear and good to me! feel free to unhold if no another update.

[qiujian16]

/lgtm

[xuezhaojun]

/lgtm

[elgnay]

/unhold