feat: support yurt-manager work in specified namespace

[y-ykcir]

What type of PR is this?

/kind feature

What this PR does / why we need it:

support yurt-manager deploy in specified namespace:
support Gateway controller and Yurt-manager webhooks

Which issue(s) this PR fixes:

Fixes parts of #1361

Special notes for your reviewer:

/assign @rambohe-ch

Does this PR introduce a user-facing change?

other Note

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In response to this:

What type of PR is this?

/kind feature

What this PR does / why we need it:

support yurt-manager deploy in specified namespace:
support Gateway controller and Yurt-manager webhooks

Which issue(s) this PR fixes:

Fixes parts of #1361

Special notes for your reviewer:

/assign @rambohe-ch

Does this PR introduce a user-facing change?

other Note

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes/test-infra repository.

[codecov]

Codecov Report

Merging #1367 (4bbeaca) into master (4f62983) will decrease coverage by 0.02%.
The diff coverage is 0.00%.

@@            Coverage Diff             @@
##           master    #1367      +/-   ##
==========================================
- Coverage   52.31%   52.29%   -0.02%     
==========================================
  Files         103      103              
  Lines       12963    12966       +3     
==========================================
  Hits         6781     6781              
- Misses       5629     5632       +3     
  Partials      553      553              

Flag	Coverage Δ
unittests	52.29% <0.00%> (-0.02%)	⬇️

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

Impacted Files	Coverage Δ
...g/controller/gateway/gateway/gateway_controller.go	22.83% <0.00%> (-0.44%)	⬇️

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[y-ykcir]

It looks like the test use yurt-manager-auto-generated.yaml directly to install components here. If I change webhooks.clientConfig.service.namespace to be rendered through helm intead of hardcode, it cannot be used directly.

[rambohe-ch]

It looks like the test use yurt-manager-auto-generated.yaml directly to install components here. If I change webhooks.clientConfig.service.namespace to be rendered through helm intead of hardcode, it cannot be used directly.

@y-ykcir Very appreciate for your work, it is not need to modify charts/openyurt/templates/yurt-manager-auto-generated.yaml file, because namespace in yurt-manager-auto-generated.yaml file will be overwritten in yurt-manager with working namespace, the detail code is here:
https://github.com/openyurtio/openyurt/blob/master/pkg/webhook/util/configuration/configuration.go#L68
https://github.com/openyurtio/openyurt/blob/master/pkg/webhook/util/configuration/configuration.go#L93

[sonarcloud]

Kudos, SonarCloud Quality Gate passed!   

0 Bugs
0 Vulnerabilities
0 Security Hotspots
0 Code Smells

No Coverage information
0.0% Duplication

[rambohe-ch]

/lgtm

[openyurt-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: rambohe-ch, y-ykcir

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