Integration project

This is a basic integration project. The main scope is to experiment and learn about container-based apps and containerization.

The main tools used are:

• Docker
• ExpressJS
• Helm
• Kubernetes
• MongoDB
• NodeJS

Steps to run it inside Kubernetes:

• Install Kubectl and Minikube
• Start the minikube with:
  • Windows 10 with Hyper-V: link minikube start --vm-driver=hyperv --hyperv-virtual-switch="minikube-switch"
  • Other: minikube start
• Enable metrics: minikube addons enable metrics-server
• Install Helm
• Deploy using Helm:
  • helm install --name db -f ./production/mongo-values.yaml stable/mongodb
  • helm install --name app ./production/app-chart/
• Add an autoscaler: kubectl autoscale deployment app --cpu-percent=30 --max=4
• Access the app with: minikube service app
• Access the dashboard with: minikube dashboard

Steps to update the image stored in DockerHub:

• Transpile the code with Babel: npm run build
• Build and tag the image locally: docker build -f ./production/Dockerfile -t memignone/basic-node-app:latest .
• Push it to Docker Hub: docker push memignone/basic-node-app:latest