kubernetes express node redis postgres example

This Kubernetes project containerizes a React application as the frontend, which is used to calculate a time-consuming task - in this case, finding the nth Fibonacci number. The application is designed to be scalable and able to handle large amounts of traffic.

The project also includes a PostgreSQL database for data storage, a Redis server for caching, and a Node Express server to handle incoming requests. Each of these services is separated into its own folder with its own Dockerfile, which helps to keep the codebase organized and easy to manage.

To manage the deployment of the various services, Kubernetes is used, along with several Kubernetes-specific components. These include an IP service to assign IP addresses to each service, an ingress service to handle incoming traffic and routing, and a persistent volume claim to ensure that data is stored securely and can be easily accessed.

Overall, the project demonstrates how Kubernetes can be used to manage complex, multi-component applications in a scalable and efficient manner.

Setup

NOTE: By default my personal dockerhub repo(deapu) is used for retrieving images, you can recreate your own images with dockerfile inside every folder.

Install minikube or any other local kubernetes cluster maker

 $ minikube start
 $ kubectl cluster-info

to check cluster is up and running

Create a secret for postgres password

$ kubectl create secret generic pgpassword --from-literal PGPASSWORD=postgres_password

Start the containers

$ kubectl apply -f k8s/

Check results

$ minikube ip

use the above ip (local) to see the result