Deploying Demo Applications on Kubernetes

Two end-to-end example apps deployed on Kubernetes: a Node.js + MongoDB app and a Python + MySQL app.

September 23, 2023 · 1 min · 213 words · hoangph3

Table of Contents

Node.js + MongoDB Demo

demo app - developing with Kubernetes

This demo app shows a simple user profile app set up using

server.js run web app
mongo for data storage

All components are kubernetes

With minikube

To start the application

Step 1: Moving docker environment to kubernetes

eval $(minikube docker-env)

Step 2: Build python app image

docker build -t mongo-demo-k8s:1.0 .

Step 3: Create deployment and service

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

Step 4: Get public IP of minikube

minikube ip #192.168.49.2

Step 5: Access you python application UI from browser

curl http://192.168.49.2:30100

Python + MySQL Demo

demo app - developing with Kubernetes

This demo app shows a simple user profile app set up using

main.py run web app
mysql for data storage

All components are kubernetes

With minikube

To start the application

Step 1: Moving docker environment to kubernetes

eval $(minikube docker-env)

Step 2: Build python app image

docker build -t python-docker-dev .

Step 3: Create deployment and service

kubectl apply -f mysql.yaml
kubectl apply -f webapp.yaml

Step 4: Get public IP of minikube

minikube ip #192.168.49.2

Step 5: Access you python application UI from browser

curl http://192.168.49.2:30900
curl http://192.168.49.2:30900/initdb
curl http://192.168.49.2:30900/widgets

You can get full source code here: node-mongo, python-mysql.