Echoserver

Simple TCP echoserver to test TCP routings and settings in i.e. a K8S cluster or a container enviroment

Build

Just clone the branch and run

make

in the docker folder. It will build the server application and create a container image.

App

If you only want build the app, run

make app

Container

If you only want to build the container, run

make container

Usage

Per default the server app is listening on port 12345. If you want to run the server app on another port, at an argument

echoserver 43251

Container

To run the container, you could use the image from Docker hub (fschunke/echoserver), which is build with an ARM7 processor.

docker run -itd -e SEVER_PORT=42235 -p 43251:42235 fschunke/echoserver

Kubernetes

In the k8s folder you could find a deployment yaml and a configmap, which could be used to deploy the server app on a kubernetes cluster. The configmap is only working if you add an ingress controller to your cluster (i.e. https://www.nginx.com/products/nginx-ingress-controller/). Afterwards you have to edit the ingress controller deployment

KUBE_EDITOR=nano kubectl edit deployment -n ingress-nginx -o yaml

Add following lines to the args section of the container section

...
  - args:
  ...
  - --tcp-services-configmap=$(POD_NAMESPACE)/tcp-services
  - --udp-services-configmap=$(POD_NAMESPACE)/udp-services
...

The name tcp-services is the same as in the configmap file.