• Create a pod: 
    kubectl run nginx-pod --image=nginx:alpine
  • To add labels when creating a pod, use --labels 
    kubectl run redis --image=redis:alpine --labels="tier=db"
  • Check the help output of kubectl run with kubectl run --help.
  • To see the --help output when creating a service, run kubectl create service --help.
  • To create the service on a specific service and expose a particular application (either an equals or a space can be used between --name and --port): 
    kubectl expose pod redis --name redis-service --port 6379
  • Only use kubectl create service when you need to specify a particular NodePort. Otherwise just use kubectl expose.
  • Then check the service with: 
    kubectl get svc redis-service
  • The above will show you any labels or anything else attached to the pod.
  • How to create a deployment using an image with 3 replicas: 
    kubectl create deployment webapp --image=kodekloud/webapp-color --replicas=3
  • Check the deployment is up with: 
    kubectl get deploy
  • Create an nginx pod that runs on port 8080: 
    kubectl run custom-nginx --image=nginx --port=8080
  • How to create a new namespace: 
    kubectl create namespace dev-ns
  • How to create a deployment in a specific namespace: 
    kubectl create deployment redis-deploy --image=redis --replicas=2 -n dev-ns
  • Check for the deployment in that particular namespace: 
    kubectl get deployment -n dev-ns
  • How to create a pod and create a service with the same name and expose the port: 
    kubectl run httpd --image=httpd:alpine --port=80 --expose=true
  • Then run kubectl describe svc httpd and you can see from the output the Selector tag and the Endpoint tag to know that it worked.

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