feat(multicluster): propagate service labels to endpoints #13583
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When Kubernetes creates endpoints for a service, it propagates the labels from the parent service to the endpoints, allowing these labels to be used for discovery. When using Linkerd mirrored endpoints, this ability was lost until now. This change simply mimics the vanilla Kubernetes behavior by propagating the remote service labels to mirror endpoints. https://github.com/kubernetes/kubernetes/blob/a716ea756d87f60900dbbb500fc27ae30f7bd384/pkg/controller/endpoint/endpoints_controller.go#L506 Signed-off-by: Maxime Brunet <[email protected]>
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When Kubernetes creates endpoints for a service, it propagates the labels from the parent service to the endpoints, allowing these labels to be used for discovery. When using Linkerd mirrored endpoints, this ability was lost until now.
This change simply mimics the vanilla Kubernetes behavior by propagating the remote service labels to mirror endpoints.
kubernetes/kubernetes@
a716ea7/pkg/controller/endpoint/endpoints_controller.go#L506The tests were updated to include a custom label on the services and validate its propagation to the endpoints