Automating Kafka `version` property update process in code repository

DevOps Kafka
#1

Not sure if appropriate to ask here…but I imagine somewhere in the Kafka code there is a version property that lets the clients and the servers keep track of their version. Is that updated manually on each release, or is it automated somehow? I think the fact that we have to do PR’s like this on our project is a big Code Smell…so I’d be open to tips on how to automate: https://github.com/littlehorse-enterprises/littlehorse/pull/708/files

#2

There’s a version in our gradle.properties but:

  1. Not sure how to access that in our Java code
  2. Definitely not sure how to access that in our Go CLI code
#3

Yes, this is happening automatically with Kafka.

#4

Cf https://github.com/apache/kafka/pull/14993

#5

It’s still few places where we need to update the version…

#6

But in the end, it’s picked up, and we add a properties files that we put into the jar, and this properties file is read on startup to read the version.

#7

Ah, putting a properties file in the jar is a good idea. Thanks!

#8

Cf AppInfoParser.java

#9

We also encode the commit hash in this file.

#10

cf https://github.com/apache/kafka/blob/trunk/build.gradle#L870-L886

#11

I am not a gradle person, but the magic happens somewhere there