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emissary-ingress / emissary

open source Kubernetes-native API gateway for microservices built on the Envoy Proxy
https://www.getambassador.io
Apache License 2.0
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gRPC health check endpoint for ambassador #3276

Open Sushma10037017 opened 3 years ago

Sushma10037017 commented 3 years ago

Hi, We have ambassador api-gateway(v1.2.2) deployed in our Kubernetes cluster and exposed via AWS application load balancer. We want to support gRPC services routing via ambassador. AWS ALB supports gRPC flow but expects the health checks to return gRPC status code.

Can anybody help us to know if the ambassador exposes gRPC health check endpoint(We tried healthcheck endpoints mentioned here )? Any recommendations around this are appreciated.

As a hack round for this, we are planning to deploy a sidecar/deployment which will be a gRPC service that checks ambassador REST health check endpoint. Thanks!.

kflynn commented 3 years ago

I don't think that any gRPC health check is exposed. If you're thinking about whipping up a gRPC health check service, though, might it be simpler to just add that directly to cmd/entrypoint/healthcheck_server.go? That's where the health checks are managed in modern Ambassador; we'd be delighted to support that effort... 🙂