5-node Kafka cluster podDisruptionBudget

[eroji]

I'm using the Helm deployment of the cluster operator. The operator is deployed to a separate namespace called kafka-system. I want the the operator to manage different namespaces in my Kubernetes so I have watchAnyNamespace=true. According to the docs, by default podDisruptionBudget is not turned on, but after the Kafka cluster is created I see a PDB created in my target namespace. For example I have a 5-node Kafka created by the operator, it creates a PDB requiring min available of 4.

NAME                           MIN AVAILABLE   MAX UNAVAILABLE   ALLOWED DISRUPTIONS   AGE
kafka-service-kafka             4               N/A               1                     47s

The docs mention a value that can be set for podDisruptionBudget.enabled, which defaults to false, so I'm unsure as to why my Kafka is being created with this PDB. Moreover, playing with the override by setting podDisruptionBudget.enabled to true, it actually creates a PDB in the namespace kafka-system where the operator is deployed instead which makes me more confused as to what it'd be for?

NAME                           MIN AVAILABLE   MAX UNAVAILABLE   ALLOWED DISRUPTIONS   AGE
strimzi-cluster-operator-pdb   1               N/A               0                     5s

My question is, is there a way to disable the PDB creation for the Kafka cluster itself, or manipulate the value it's set as?

[scholzj]

Pod Disruption Budgets for the operands are always enabled by default. For the Operator you have to enable it yourself IIRC. So maybe you are mixing the two things together?

As for the PDBs for the operands, you can disable their management completely through and environment variable in the Cluster Operator and manage them yourself.