/kubernetes-demo

A simple demo app with kubernetes.

Description

A web app that interacts with MongoDB.

References

Kubernetes Docs

Kubernetes Crash Course for Absolute Beginners

Steps

  • Deploy MongoDB database
  • Deploy Web Application
  • External Configuration for DB URL and Credentials
    • Secret
    • ConfigMap
  • Make Web Application accessible externally from the browser

Notes

  • Secret needs base64 values
echo -n <text> | base64
  • Need to pass mongo db username and password from secret to the webapp
  • NodePort Service is accessible on each Worker Node’s IP address
minikube start --driver docker
minikube status

kubectl apply -f mongodb-secret.yaml
kubectl apply -f mongodb-config.yaml
kubectl apply -f mongodb.yaml
kubectl apply -f webapp.yaml

kubectl get all
kubectl get service
minikube ip or kubectl get node -o wide

Combine ip and service port. Open in browser.