An example chat application
Please note that you need to obtain your credential for the private registry (see project description) and create a secret named regcred in the chatapp namespace before deploying the 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 harbor.pacslab.ca/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 harbor.pacslab.ca/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.