• Backend: nodejs + express
• Frontend: pure html + js
• Database: mongodb
• Cache: redis
• Queue: bull.js
• Node version: v20.12.2 (must accept --node-env parameter)

node stress_test.js

Single server:

npm run start 

Cluser mode: starts as many severs as cpus available.

npm run cluster

Single pod:

docker build -t image-name .
docker push image-name
kubectl apply deployment/express-deployment

NodePort service to make the pod accesible from outside of the cluster:

kubectl apply deployment/express-service

Used as a cache for hash-url search and as a queue for visit count storage.

redis-server

Single redis pod:

kubectl apply deployment/redis-deployment

Helm chart

helm install my-redis bitnami/redis

Using a free Atlas cluster.