Re: Kafka Connect on Kubernetes: Statefulset vs Deployment

I created the docker+kube stuff for our kafka-connect at my current job.
I use standard deployment. kafka-connect doesn't care of hostname or IP.

The sole trick is to inject the connector configuration at runtime (if you want).

--
Raph

On 14/06/2025 2:12 pm, Prateek Kohli wrote:

> Hi All,
>
> I'm building a custom Docker image for kafka Connect and planning to run it
> on Kubernetes. I'm a bit stuck on whether I should use a Deployment or a
> StatefulSet.
>
> From what I understand, the main difference that could affect Kafka Connect
> is the hostname/IP behaviour. With a Deployment, pod IPs and hostnames can
> change after restarts. With a StatefulSet, each pod gets a stable hostname
> (like connect-0, connect-1, etc.)
>
> My question is: Does it really matter for Kafka Connect if the pod
> IPs/hostname change, considering its a stateless application?
>
> Thanks