I'm new with service mesh thing, so I did some PoC of basic implementation of microservices in kubernetes with istio.
I have 2 Deployments which is supposed to be talking to each other using gRPC. When I call the grpc server it returned error rpc error: code = Internal desc = server closed the stream without sending trailers
This is my grpc Service config:
apiVersion: v1 kind: Service metadata: name: grpcserver labels: app: grpcserver spec: ports: - port: 8080 name: http selector: app: grpcserver
Quoting Istio docs,
Service ports must be named. The port names must be of the form {protocol}[-{suffix}] with http, http2, grpc, mongo, or redis as the in order to take advantage of Istio’s routing features.
So the Service configuration should be:
apiVersion: v1
kind: Service
metadata:
name: grpcserver
labels:
app: grpcserver
spec:
ports:
- port: 8080
name: grpc
selector:
app: grpcserver