Difference between revisions of "Kubernetes PodDisruptionBudget (PDB)"

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* https://kubernetes.io/docs/tasks/run-application/configure-pdb/
 
* https://kubernetes.io/docs/tasks/run-application/configure-pdb/
  
== Commands ===
+
== Commands ==
 
* <code>[[kubectl get pdb]]</code>
 
* <code>[[kubectl get pdb]]</code>
  
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  55m        Normal    NoPods                            poddisruptionbudget/your_text                    No matching pods found
 
  55m        Normal    NoPods                            poddisruptionbudget/your_text                    No matching pods found
 +
 +
== Test ==
 +
[[kubectl drain]] ip-10-0-3-48.us-east-2.compute.internal [[--ignore-daemonsets]]
 +
error when evicting pods/"your-pod-name" (will retry after 5s): [[Cannot evict pod as it would violate the pod's disruption budget]]
  
 
== Examples ==
 
== Examples ==
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* 1.21 [[Graceful node shutdown]]
 
* 1.21 [[Graceful node shutdown]]
 
* <code>[[kubectl drain]]</code>
 
* <code>[[kubectl drain]]</code>
 +
* <code>[[kubectl drain]] your-node-name --ignore-daemonsets</code>
 +
* [[TopologySpreadConstraints]]
 +
* <code>[[ttlSecondsUntilExpired]]</code>
 +
* <code>[[kubernetes_pod_disruption_budget_v1]]</code>
  
 
== See also ==
 
== See also ==

Latest revision as of 11:52, 8 March 2024

Commands[edit]


kubectl api-resources | grep -i pdb
poddisruptionbudgets              pdb          policy/v1                              true         PodDisruptionBudget
33m         Warning   CalculateExpectedPodCountFailed   poddisruptionbudget/xxxx-pdb                     Failed to calculate the number of expected pods: statefulsets.apps does not implement the scale subresource


kind: PodDisruptionBudget


55m         Normal    NoPods                            poddisruptionbudget/your_text                     No matching pods found

Test[edit]

kubectl drain ip-10-0-3-48.us-east-2.compute.internal --ignore-daemonsets
error when evicting pods/"your-pod-name" (will retry after 5s): Cannot evict pod as it would violate the pod's disruption budget

Examples[edit]

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

Related[edit]

See also[edit]

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