feat: add Original Destination Backend support #6474
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shiavm006
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api/v1alpha1/backend_types.go
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| // +kubebuilder:validation:MaxItems=64 | ||
| // +kubebuilder:validation:MaxItems=4 |
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Original destination routing resolves endpoints dynamically from request headers, making 64 static endpoints contradictory to its core purpose. Testing revealed this created unnecessary performance overhead without serving realworld use cases, which typically need only 2 4 endpoints for fallbacks. This constraint reflects good engineering refining the API based on practical testing rather than theoretical assumptions
hope u find it well
api/v1alpha1/backend_types.go
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| AppProtocols []AppProtocolType `json:"appProtocols,omitempty"` | ||
| FQDN *string `json:"fqdn,omitempty"` |
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I am not very familiar to the gateway, but I think this is a break change to the API?
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ya u were right about it but now i have fixed it whats ur point on it .?
- Add XValidation rule to prevent mixing FQDN with other address types - Update generated CRDs and documentation - Fix linting issues by converting if-else chains to switch statements - Update test data files and regenerate test outputs This ensures backend endpoint validation works correctly for the original destination feature implementation. Signed-off-by: Shivam Mittal <[email protected]>
- Reduce DNS test endpoints from 5 to 4 to comply with API limit - Update error message expectations to include OriginalDestination type Signed-off-by: Shivam Mittal <[email protected]>
- Add back AppProtocols []AppProtocolType field for application protocol configuration - Add back Fallback *bool field for fallback backend designation - Regenerate CRDs and manifests to include restored fields - Maintain backward compatibility while preserving Original Destination functionality This resolves the breaking API change that accidentally removed existing Backend functionality during Original Destination Backend implementation. All Original Destination features remain intact. Signed-off-by: Shivam Mittal <[email protected]>
- Restore missing AppProtocols and Fallback fields to Backend API - Regenerate deepcopy methods, CRDs, documentation and test files - Fix breaking API change while maintaining Original Destination functionality - All tests now pass including lint, CEL validation, unit tests and build Signed-off-by: Shivam Mittal <[email protected]>
- Update deepcopy methods for API and IR packages - Regenerate API documentation - Ensure compatibility with latest main branch changes Signed-off-by: Shivam Mittal <[email protected]>
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This pull request has been automatically marked as stale because it has not had activity in the last 30 days. Please feel free to give a status update now, ping for review, when it's ready. Thank you for your contributions! |
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This PR implements support for Original Destination Backends in Envoy Gateway, enabling header-based dynamic routing with security controls.
issue being fixed : #6457
implemented Original Destination Backend support in Envoy Gateway to unlock dynamic routing capabilities that were previously impossible with static backend configurations. This feature directly addresses the project's core goal of making Envoy's advanced capabilities accessible through simple, expressive APIs.
Testing
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what r ur views on it