[bitnami/kafka] add topologyKey

[simonostendorf]

Name and Version

bitnami/kafka 32.1.3

What is the problem this feature will solve?

Currently the kafka chart doesnt allow to specify the topologyKey für the pod anti affinity so kubernetes.io/hostname is always used.

I want to use topology.kubernetes.io/zone as topologyKey to spread the kafka controllers between 3 availability zones.

What is the feature you are proposing to solve the problem?

I would suggest to add the topologyKey value to the values.yaml of the kafka chart and parse it to the pod anti affinity.

I am not sure where I should put the values (because we have controllers and brokers in this chart) and if there are other things to concider. I could try to open a PR and we can discuss these things in the PR review.

What alternatives have you considered?

No response

[javsalgar]

Hi,

Would the section affinity work for your use case? That would allow you to set the any affinity settings to the workloads.

[javsalgar]

BTW, I saw that you created a PR. Thank you so much!

[simonostendorf]

Hi,

Would the section affinity work for your use case? That would allow you to set the any affinity settings to the workloads.

@javsalgar I thought that adding the topologyKey value would be better because all other bitnami charts handle it that way.