GRPC with istio for public clients and internal applications

[Isuru Samaraweera]

Hi,

I am going to expose GRPC services to public clients using istion ingress and proxy load balancing.

In addition to public grpc clients I want internal applications to use the same grpc cluster with a common load balancing policy for both public clients and internal applications.

Should the internal applications use istio ingress to achieve shared load balancing policy or can it be done via a separate client side load balancing mechanism only for internal apps?What is the recommended approach?

Thanks,

Isuru

[Srini Polavarapu]

gRPC clients have only round-robin and pick-first built-in LB policies available to them. You are probably better off using Istio ingress LB to share LB policy unless you want to run your own gRPCLB service and implement your LB policy in there.

[Isuru Samaraweera]

This implies that even internal applications sitting behind the ingress invoke grpc services through the ingress like public client applictions

.Please verify?

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Isuru Samaraweera