How to consume external gRPC service?

Hi All,
Is it possible to consume an external gRPC service? I have been unable to get it to work. when I attempt to call the external service, I receive an rpc error: code = Unavailable desc = upstream connect error or disconnect/reset before headers on my go client. Isito proxy also similarly reports a 200 UF status/response flag.

I tried registering the external service with a ServiceEntry like so:

kind: ServiceEntry
  name: grpc-service
  - name: grpc
    number: 7777
    protocol: GRPC
  location: MESH_EXTERNAL
  resolution: DNS

I appreciate any help in setting this up. Thanks.

Maybe you need egress set up to allow the connection?

Is egress only needed for grpc? I have set up http, https, and tcp external services with no issue before. It’s only grpc which seems to have problems.

Is your egress configured to allow http/2 since gRPC is on top of that?

try http2 as a protocol?

Did you ever get this working? I am trying to do the same.