kubectl cp static-tcpdump helloworld-7fb98fb75b-rzjz6:/

kubectl exec -it helloworld-7fb98fb75b-rzjz6 sh

./static-tcpdump  -i any -X tcp -s0 port 80 -w wlf1.cap &

./grpcurl -plaintext 127.0.0.1:80 list
./grpcurl -plaintext 127.0.0.1:80 list helloworld.Greeter
./grpcurl -plaintext 127.0.0.1:80 describe helloworld.Greeter
./grpcurl -plaintext 127.0.0.1:80 describe helloworld.HelloRequest
./grpcurl -plaintext 127.0.0.1:80 describe helloworld.HelloReply
./grpcurl -plaintext -d '{"name":"aaa"}' 127.0.0.1:80 helloworld.Greeter.SayHello

kubectl cp helloworld-7fb98fb75b-rzjz6:wlf1.cap ./wlf1.cap