An example chat application
The chatapp.yaml file describes the Kubernetes objects for the application. Please use the following commands to deploy the chat application to the namespace chatapp on a Kubernetes cluster.
kubectl create namespace chatapp
kubectl apply -f chatapp.yaml -n chatapp
The frontend service has a NodePort value of 30222. You can access the application by going to the address http://MASTER_IP:30222
Please note that you need to replace MASTER_IP with the IP of your master node.
The chatapp-backend directory contains the source code for the backend service, which implements a WSGI web application served by uWSGI and is containerized with Docker. The WSGI application implements backend logics and binds to a TCP socket on port 14222.
You can use the following commands to build the Docker image.
cd chatapp-backend
docker build -t eecs4222/chatapp-backend .
The chatapp-frontend directory contains the source code for the frontend service, which containerizes and leverages NGINX as both a web server to serve static files and a uWSGI (WebSocket) proxy. The web server listens on port 4222.
You can use the following commands to build the Docker image.
cd chatapp-frontend
docker build -t eecs4222/chatapp-frontend .
Important: This is an example program that is intentionally minimalist and by no means guaranteed to be complete, robust, or follow the best practice.