Add possibility to specify key fields in kafka producer

[oscni]

Is your feature request related to a problem? Please describe.
Does not seem to be possible to send messages to kafka topic with a key specified. Key currently reports as Null

Describe the solution you'd like
Possibility to specify key fields in kafka producer, maybe the same way as for filtering allow list

Describe alternatives you've considered
None

Additional context
Use JSON format and make it possible to specify multiple data fields as key

[github-actions]

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[github-actions]

This issue was marked as resolved a long time ago and now has been automatically locked as there has not been any recent activity after it. You can still open a new issue and reference this link.