Feat/namespace-opt-in

[ullbergm]

This PR introduces namespace opt-in functionality for the object lease controller, allowing the controller to selectively manage objects based on namespace labels. The implementation adds a namespace tracker to monitor which namespaces should be included in lease management.

Key changes:

Adds namespace-based filtering with opt-in label support
Replaces extended-at annotation with lease-start for more precise lease timing control
Refactors the lease controller package structure and improves test coverage

Pull Request type

Please check the type of change your PR introduces:

• Bugfix
• Feature
• Code style update (formatting, renaming)
• Refactoring (no functional changes, no API changes)
• Build-related changes
• Documentation content changes
• Other (please describe):

What is the current behavior?

Issue Number: N/A

What is the new behavior?

Does this introduce a breaking change?

• Yes
• No

Other information

Signed-off-by: Magnus Ullberg magnus@ullberg.us

[Copilot]

Pull Request Overview

This PR introduces namespace opt-in functionality for the object lease controller, allowing the controller to selectively manage objects based on namespace labels. The implementation adds a namespace tracker to monitor which namespaces should be included in lease management.

Key changes:

• Adds namespace-based filtering with opt-in label support
• Replaces extended-at annotation with lease-start for more precise lease timing control
• Refactors the lease controller package structure and improves test coverage

Reviewed Changes

Copilot reviewed 11 out of 12 changed files in this pull request and generated 4 comments.

Show a summary per file

File	Description
pkg/util/tracker.go	New namespace tracker utility for managing opt-in namespaces with event notifications
pkg/controllers/namespace_controller.go	New controller for monitoring namespace label changes and updating the tracker
pkg/controllers/namespace_controller_test.go	Comprehensive test suite for namespace controller functionality
pkg/controllers/lease_controller.go	Refactored from leasewatcher package with namespace filtering and lease-start annotation
pkg/controllers/lease_controller_test.go	Extensive test coverage for lease controller with namespace tracking
cmd/main.go	Added opt-in label configuration and pprof support
go.mod	Made go-logr/logr a direct dependency

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[github-actions]

Pull Request closed and locked due to lack of activity.
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