helioalb / k8s-example

Kubernetes example

k8s-example

Kubernetes example

For this example we will use the kind

Creating a cluster with kind

kind create cluster --name=k8s-example

Setting owr cluster as context of kubectl

kubectl cluster-info --context kind-k8s-example

Creating node app

docker run --rm -it -v $PWD:/app -w /app node npm init

docker run --rm -it -v $PWD:/app -w /app node npm install express --save

docker run --rm -it -v $PWD:/app -p 80:3000 -w /app node index

Running pod.yaml

kubectl apply -f k8s/pod.yaml

Testing pod before create a service

kubectl port-forward pod/frontend 3000:3000

Deleting the pod

kubectl delete pod frontend

Running the replicaset

kubectl apply -f k8s/replicaset.yaml

Running the deployment

kubectl apply -f k8s/deployment.yaml

Running service

kubectl apply -f k8s/service.yaml

Forwarding port of service

kubectl port-forward svc/frontend-service 3000:3000

Types of service

• ClusterIP
• LoadBalancer