kubectl get

Learn to list resources with kubectl get.

kubectl get

kubectl get lists objects as a table. The output format changes with -o:

kubectl get pods                    # table
kubectl get pods -o wide            # IP and node columns
kubectl get pod web-abc -o yaml     # full definition
kubectl get pods -o name            # in the form pod/web-abc
kubectl get deploy,svc              # several types

-o yaml also shows the fields Kubernetes added to the object (status, uid, timestamps).

JSONPath and custom columns

For scripts, a single field is taken with -o jsonpath, and readable tables with -o custom-columns:

$ kubectl get pods -o jsonpath='{.items[*].metadata.name}'
web-abc web-def
$ kubectl get pods -o custom-columns=AD:.metadata.name,NODE:.spec.nodeName
AD        NODE
web-abc   worker-1
web-def   worker-2

Exercise Select the fields

Write two commands: list the deployments and services in one command; then print the names of all pods with jsonpath='{.items[*].metadata.name}'.

Show example solution

kubectl get deploy,svc
kubectl get pods -o jsonpath='{.items[*].metadata.name}'

Test yourself

Which shows an object's full YAML definition in the cluster?
- kubectl show TYPE NAME
- kubectl get TYPE NAME -o yaml
- kubectl yaml TYPE NAME
- kubectl get -yaml
Show answer

kubectl get TYPE NAME -o yaml — -o json gives the same information as JSON.

Get the pod's full definition as YAML.

kubectl get pod web-abc -o ____

Show answer

kubectl get pod web-abc -o yaml

Match the formats.

-o wide

Extra columns
-o yaml

Full definition
-o name

type/name list
-o jsonpath

Single field selection

Next lesson: kubectl describe

We Are Enhancing Your Experience

Cookie Preferences

Strictly Necessary Cookies

Analytical Cookies