✨ configurable controller replicas and master node selector

[dongbeiqing91]

Summary

In production, operators should be able to controll the replicas of the deployments. Making replicas larger than 1 is very important. So this PR is submitted to make deployment replicas and master node selector configurable.

Related issue(s)

Fixes #

[codecov]

Codecov Report

Attention: Patch coverage is 40.00000% with 24 lines in your changes are missing coverage. Please review.

Project coverage is 62.72%. Comparing base (df3b290) to head (569877c).
Report is 1 commits behind head on main.

Files	Patch %	Lines
...stermanagercontroller/clustermanager_controller.go	28.57%	10 Missing ⚠️
...lers/klusterletcontroller/klusterlet_controller.go	33.33%	8 Missing ⚠️
...sterletcontroller/klusterlet_cleanup_controller.go	40.00%	6 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #468      +/-   ##
==========================================
+ Coverage   62.70%   62.72%   +0.01%     
==========================================
  Files         136      136              
  Lines       11558    11573      +15     
==========================================
+ Hits         7248     7259      +11     
- Misses       3541     3546       +5     
+ Partials      769      768       -1     

Flag	Coverage Δ
unit	62.72% <40.00%> (+0.01%)	⬆️

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[qiujian16]

/assign @zhiweiyin318

[zhiweiyin318]

/lgtm

[dongbeiqing91]

@zhiweiyin318 I changed controlPlaneNodeLabels to controlPlaneNodeLabelSelector, please review this PR again. Thanks

[zhiweiyin318]

@promid the value of the flag controlPlaneNodeLabelSelector is label not labelSelector, so is there a reason why use selector here ?
forget the comment. it is string now.

[zhiweiyin318]

/lgtm

[qiujian16]

/approve

[openshift-ci]

[APPROVALNOTIFIER] This PR is APPROVED

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