1. Application setup steps

Some new line here to test blabl

This simple nodejs app starts on port 3000 and logs 1 line into elastic search which is running in a minikube cluster. Elastic endpoint configured in Pino is the es service name in Minikube.

to prepare the app for startup, installing all the dependencies

npm install

to start the application

npm start or node app/server.js

to build the image from Dockerfile

docker build -t nodejs-app:1.0 .

to start the built docker image

docker run nodejs-app:1.0

2. Deploy on Minikube

(pre-requisite elastic search setup in Minikube)

build the uptodate image INSIDE MINIKUBE (this way docker won't have to pull the image from repo, it will take the one existing locally)

Set docker remote to Minikube's docker

eval $(minikube docker-env) 

Build image inside Minikube

docker build -t nodejs-app:1.0 .

deploy pod from the image

kubectl apply -f pod.yaml