istio
TCP Echo Service
This sample runs TCP Echo Server as an Istio service. TCP Echo Server allows you to connect to it over TCP and echoes back data sent to it along with a preconfigured prefix.
Usage
To run the TCP Echo Service sample:
-
Install Istio by following the istio install instructions.
-
Start the
tcp-echo-server
service inside the Istio service mesh:$ kubectl apply -f <(istioctl kube-inject -f tcp-echo.yaml)service/tcp-echo createddeployment.apps/tcp-echo created -
Test by running the
nc
command from abusybox
container from within the cluster.$ kubectl run -i --rm --restart=Never dummy --image=busybox -- sh -c "echo world | nc tcp-echo 9000"hello worldpod "dummy" deletedAs you observe, sending world on a TCP connection to the server results in the server prepending hello and echoing back with hello world.
-
To clean up, execute the following command:
$ kubectl delete -f tcp-echo.yamlservice "tcp-echo" deleteddeployment.apps "tcp-echo" deleted