This PR adds support for resource-specific expansion methods and implements
missing standard client-go operations to achieve feature parity.
## New Features
### Expansion Methods
- Added PodClient with methods: GetLogs, Bind, Evict, ProxyGet
- Added ServiceClient with method: ProxyGet
- Both clients implement the official k8s.io/client-go expansion interfaces
- Runtime type assertions ensure type safety (panic if wrong type)
### Missing Standard Methods
- Watch: Watch resources with optional label/field selectors
- DeleteCollection: Delete multiple resources matching criteria
- UpdateStatus: Update only the status subresource
### Other Improvements
- Refactored all tests to use inline configuration pattern
- Added comprehensive e2e tests for new functionality
- Updated documentation with examples
- Fixed linting error in stream.Close() handling
## Design Decisions
The expansion methods follow a namespace-scoped pattern where calling
`client.PodClient("namespace")` returns a client that implements the
standard client-go PodExpansion interface. This maintains full API
compatibility while providing type safety through runtime assertions.
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- Configure weekly updates for Go modules
- Configure weekly updates for GitHub Actions
- Group Kubernetes dependencies (k8s.io/*) together
- Set update schedule for Mondays at 10:00 UTC
- Add appropriate labels for dependency PRs
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- Add InformOptions struct with ListOptions and ResyncPeriod fields
- Update all client methods to accept options parameters
- Add comprehensive examples in main.go demonstrating:
- Label selector filtering (test=example)
- Field selector filtering (status.phase=Running)
- Custom resync periods
- Add tests for label and field selectors with mock query parameter support
- Fix nil pointer handling in all client methods
- Update mock transport to handle query parameters correctly
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This major refactoring eliminates the dependency on the dynamic client
and unstructured types, using rest.RESTClient directly for all operations.
Key changes:
- Replace dynamic.Interface with rest.RESTClient in client struct
- Remove all unstructured.Unstructured conversions
- Use direct JSON marshaling/unmarshaling for type conversions
- Update all CRUD methods (List, Get, Create, Update, Delete, Patch)
- Reimplement Inform to use cache.ListWatch with rest client
- Export Client type and update method signatures
- Add proper GroupVersion and APIPath configuration in NewClientGVR
- Update all tests to use mock HTTP transport instead of fake dynamic client
- Fix informer event handler to use new InformerHandler type
- Update example code to demonstrate new API
Benefits:
- More efficient: eliminates unnecessary type conversions
- Cleaner code: direct use of REST client
- Better performance: reduced JSON marshaling overhead
- Type safety maintained through generics
All unit tests and e2e tests pass against a real Kubernetes cluster.
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- Replace gotip with stable Go in GitHub Actions
- Add automatic GVR inference for Kubernetes types
- Rename API: NewClient (inferred GVR) and NewClientGVR (explicit)
- Add comprehensive test coverage including e2e tests
- Update CI to include linting, unit tests, and e2e tests with kind
- Add .gitignore for common Go development files
- Update README with usage examples and features
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- Fix syntax error in Inform method (< to ,)
- Add missing CRUD operations: Update, Delete, and Patch methods
- Add comprehensive test coverage for all client operations
- Update Kubernetes dependencies from v0.21.1 to v0.31.11
- Update Go version requirement to 1.22.0
- Update README to remove outdated Go 1.18 beta references
- Improve error handling and logging
The client now provides full CRUD functionality with type-safe generic
operations for any Kubernetes resource type, significantly reducing
boilerplate compared to traditional client-go usage.
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