Kubernetes PodDisruptionBudget (PDB)

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Commands


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

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

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

Related

See also

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