Difference between revisions of "Kubernetes selectors"

Revision as of 15:24, 5 January 2023

kubectl get pods --selector=app=YOUR_APP -o=jsonpath='{.items[0].metadata.name}'

kubectl get pods --field-selector status.phase=Running ^[1]

selector:

app=elasticsearch-master
chart=elasticsearch
release=elasticsearch-prod

spec:
  podSelector:
    matchLabels:
      app: elasticsearch-master

 apiVersion: policy/v1
kind: PodDisruptionBudget
metadata:
 name: zk-pdb
spec:
 minAvailable: 2
 selector:
   matchLabels:
     app: zookeeper

@@ Line 2: / Line 2: @@
 * https://kubernetes.io/docs/concepts/overview/working-with-objects/field-selectors/
-  [[kubectl get pods]] [[--selector]]=app=YOUR_APP
+* <code>[[kubectl get pods]] [[--selector]]=app=YOUR_APP</code>
-  [[kubectl get pods]] [[--selector]]=app=YOUR_APP -o=[[jsonpath]]='{.items[0].metadata.name}'
+* <code>[[kubectl get pods]] [[--selector]]=app=YOUR_APP -o=[[jsonpath]]='{.items[0].metadata.name}'</code>
   [[kubectl get pods]] [[--field-selector]] [[status.]]phase=Running <ref>https://kubernetes.io/docs/concepts/overview/working-with-objects/field-selectors/</ref>