$ docker compose up
$ make

Before running make (go run client/main.go), please make sure that this: https://github.com/diorahman/hello-envoy-grpc-tls/blob/master/client/main.go#L35 is suitable for your env (this 192.168.64.6 is my DOCKER_HOST IP, on Linux, I believe you should just put localhost).

To generate new cert and key, just run the ./create-cert.sh