Add ability to configure Pod Distruption Budget for STS
During maintenance work EKS admins may need to evict nodes. This should not cause outage for MongoDB cluster/replicaset running on these nodes. we can create manually PDB for STS, but it would be nice to have an option to do it as part of MongoDB Kubernetes Operator.
Sergey
shared this idea
Supporting Pod Disruption Budget natively is something we do hope to do at some point.
But for now it is still possible by creating the PodDisruptionBudget resource and targeting the deployment using labels. (As per https://kubernetes.io/docs/tasks/run-application/configure-pdb/)
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JOSE
commented
100% agree, This should be a task executed automatically by the operator for every new cluster/replicaset. Or at least to have the option to configure it so it is created automatically or not.
PDBs help on the day 2 operation of a sts in Kubernetes, should be a standard setup. -
Sergey
commented
During maintenance work EKS admins may need to evict nodes. This should not cause outage for MongoDB cluster/replicaset running on these nodes. we can create manually PDB for STS, but it would be nice to have an option to do it as part of MongoDB Kubernetes Operator.