handi book

Create an NGINX Pod
kubectl run nginx --image=nginx

Generate POD Manifest YAML file (-o yaml). Don't create it(--dry-run)
kubectl run nginx --image=nginx --dry-run=client -o yaml

Create a deployment
kubectl create deployment --image=nginx nginx

Generate Deployment YAML file (-o yaml). Don't create it(--dry-run)
kubectl create deployment --image=nginx nginx --dry-run=client -o yaml

Generate Deployment YAML file (-o yaml). Don’t create it(–dry-run) and save it to a file. kubectl create deployment --image=nginx nginx --dry-run=client -o yaml > nginx-deployment.yaml

Make necessary changes to the file (for example, adding more replicas) and then create the deployment.
kubectl create -f nginx-deployment.yaml

OR

In k8s version 1.19+, we can specify the --replicas option to create a deployment with 4 replicas.
kubectl create deployment --image=nginx nginx --replicas=4 --dry-run=client -o yaml > nginx-deployment.yaml