Kubectl command to list pods of a deployment in Kubernetes

kubernetes kubectl
Bajal picture Bajal · Oct 23, 2018 · Viewed 10.3k times · Source

Is there a way to use kubectl to list only the pods belonging to a deployment? Currently, I do this to get pods:

kubectl get pods| grep hello

But it seems an overkill to get ALL the pods when I am interested to know only the pods for a given deployment. I use the output of this command to see the status of all pods, and then possibly exec into one of them.

I also tried kc get -o wide deployments hellodeployment, but it does not print the Pod names.

Answer

Rico picture Rico · Oct 23, 2018

There's a label in the pod for the selector in the deployment. That's how a deployment manages its pods. For example for the label or selector app=http-svc you can do something like that this and avoid using grep and listing all the pods (this becomes useful as your number of pods becomes very large):

$ kubectl get pods -l=app=http-svc

or 

$ kubectl get pods --selector=app=http-svc

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