Simple Node API exposed via K8s Service

• Simple Node API exposed via K8s Service
  • Typescript
    • Install dependencies
    • Run the service
    • Compile the typescript
  • Docker
    • Build image
    • Run image locally
    • Push the image
  • Kubernetes
    • Deploy Deployment and Service
    • Expose Service
    • Access the service
    • View logs of all pods and follow
  • References

Typescript

Install dependencies

npm run init

Run the service

npm run dev

Compile the typescript

npm run compile

Docker

Build image

npm run docker:build

Run image locally

npm run docker:run

Push the image

Ensure you are logged in using docker CLI with command docker login and password (or PAT token if you have 2FA).

docker push onlyutkarsh/k8s-nodejs-api:latest

Kubernetes

Deploy Deployment and Service

$ cd k8s/
$ kubectl apply -f deployment.yml
$ kubectl apply -f service.yml

Expose Service

minikube service mynodeapi-svc --url

You will see the URL something like http://192.168.64.3:32176

Access the service

curl -X POST \
 -H "Content-Type: application/json" \
 -d '{ "id" : "5" }' \
http://192.168.64.3:32176/api/dummy

View logs of all pods and follow

k logs -f -l app=pod-k8s-nodejs-api

References

• https://nodejs.org/en/docs/guides/nodejs-docker-webapp/
• https://auth0.com/blog/node-js-and-typescript-tutorial-build-a-crud-api/