feat: admission webhook for sealos

[lingdie]

🤖 Generated by Copilot at 6a73769

Summary

🎛️🚧🚀

This pull request adds a new admission controller subproject under the controllers directory. It scaffolds the project using kubebuilder and sets up the necessary files for building, testing, deploying, and running the admission controller. It also configures the GitHub workflow, docker image, and kustomize manifests for the admission controller.

admission born
scaffolded with kustomize
Dockerfile blooms

Walkthrough

• Add a new subproject for the admission controller under the controllers directory (link)
• Create the main entry point for the admission controller binary in main.go (link)
• Define the docker image for the admission controller in Dockerfile (link)
• Define the makefile for building, testing, and deploying the admission controller in Makefile (link)
• Define the project metadata for scaffolding and plugins in PROJECT (link)
• Create the documentation file for the admission controller in README.md (link)
• Create the .gitignore and .dockerignore files for ignoring unwanted files and directories (link, link)
• Define the kustomize bases and overlays for the admission controller manifests in config directory (link, link, link, link)
• Define the patches for the manager deployment, including the auth proxy sidecar and the config args (link, link)
• Define the manager manifest for the controller manager deployment and service in config/manager/manager.yaml (link)
• Define the prometheus monitor manifest for the controller manager metrics service in config/prometheus/monitor.yaml (link)
• Define the rbac manifests for the service account, roles, role bindings, and auth proxy service in config/rbac directory (link, link, link, link)

[pull-request-size]

Whoa! Easy there, Partner!

This PR is too big. Please break it up into smaller PRs.

[sealos-ci-robot]

🤖 Generated by lychee action

Summary

Status	Count
🔍 Total	907
✅ Successful	370
⏳ Timeouts	0
🔀 Redirected	0
👻 Excluded	536
❓ Unknown	0
🚫 Errors	0

Full action output

Full Github Actions output

[codecov]

Codecov Report

Patch and project coverage have no change.

Comparison is base (dd4d67b) 67.77% compared to head (b6f31a0) 67.77%.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #3678   +/-   ##
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  Coverage   67.77%   67.77%           
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  Files           8        8           
  Lines         661      661           
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  Hits          448      448           
  Misses        171      171           
  Partials       42       42           

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