Question 84961 in Docker Question posted in
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Determine actual Kafka version that is being used inside confluentinc/cp-kafka:6.2.2 image – Docker

I want to determine the exact version of Kafka inside confluentinc/cp-kafka:6.2.2 image. On this site, https://docs.confluent.io/platform/current/installation/versions-interoperability.html#cp-and-apache-ak-compatibility I have read that inside image with tag 6.2.x kafka version 2.8.x is being used but I want to determine the exact version of kafka. I want to know whether the exact version is 2.8.1 or 2.8.0. I also went inside this folder inside docker container /usr/share/java/kafka but could not determine the exact version of the kafka.

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  1. 0

    Ultimately, version should not matter for clients. Besides, you can always use org.apache.kafka:kafka-clients:6.2.2-ccs as well in Java code, assuming you’ve added the Confluent Maven repo.

    From the container, I don’t think you can find this. Confluent overrides the version in their Kafka repo fork.

    Outside of the documentation, you can see in their Jenkinsfile the mapping between versions, and the changelog between versions is here.

    If you really need a more explicit broker version, I’d suggest bitnami/kafka

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  2. 0

    The release notes for Confluent Platform 6.2.2 state that it uses Kafka 2.8.0.

    See here: https://docs.confluent.io/platform/6.2.2/release-notes/index.html

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