Envoy: Using envoy with multiple grpc endpoints

[c10b10]

Is it possible to tweak the envoy.yaml file to make it proxy multiple gRPC endpoints? If so, how?

[qiwzhang]

It is possible. You can create a route config to route the request by service name. Create a RouteMatch based in path prefix which is the gRPC service name, each service will route to different gRPC backend defined in different clusters.

[c10b10]

@qiwzhang Can you point me to some example code / documentation on this topic?

[povesteam]

The gRPC services are on TCP layer, not HTTP, therefore it is not possible to differentiate multiple endpoints by path.

Instead, header-based separation is possible, using route configs like this:

        # ...
        - match:
            prefix: "/"
            headers:
              - name: x-service
                exact_match: my-awesome-service
        # ...

Please share if you find a way to differentiate gRPC by path. Thank you!

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This issue has been automatically marked as stale because it has not had activity in the last 30 days. It will be closed in the next 7 days unless it is tagged "help wanted" or other activity occurs. Thank you for your contributions.

[stale[bot]]

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[kundansingh86]

It is possible. You can create a route config to route the request by service name. Create a RouteMatch based in path prefix which is the gRPC service name, each service will route to different gRPC backend defined in different clusters.

Can you please share an example? @qiwzhang