grpc

gRPC echo server

This is a simple Echo server built using Go and gRPC.

Run as docker container

To run the server as a Docker container, follow these steps:

• Change ":9000" to "server:9000" in frontend.go (this is only required for Docker deployments).
• docker build --tag echo-frontend -f Dockerfile-frontend .
• docker build --tag echo-server -f Dockerfile-server .
• docker network create test
• docker run --rm -d --net test -p 9000:9000 --name server echo-server
• docker run --rm -d --net test -p 8080:8080 --name frontend echo-frontend
• curl http://localhost:8080/echo

Push docker container

• Change ":9000" to "echo-server:9000" in frontend.go (this is only required for Kubernetes deployments).
• docker build --tag echo-frontend -f Dockerfile-frontend .
• docker build --tag echo-server -f Dockerfile-server .
• docker tag echo-frontend xzhu0027/echo-frontend-grpc
• docker push xzhu0027/echo-frontend-grpc
• docker tag echo-server xzhu0027/echo-server-grpc
• docker push xzhu0027/echo-server-grpc

Note

Work in progress. Potential issues:

• Shared state in client interceptors. Each request will go through a fresh instance of the interceptor. It's hard to maintain a shared variable. I had to use a global variable with mutex (this might have performance penalty. To be tested). Server-side does not have this problem.