Neil Avery
4 min readFeb 11, 2020


  • Tools for Event-Driven DevOps with Apache Kafka
“Empty highway road in through a colorful desert” by Johannes Plenio on Unsplash

Update 2024 — Jan.

Testing Kafka is hard — we have taken the well-used, and somewhat old kafka datagen and updating for SpecMesh testing, find updates here:

Update 2023.

This post is now three years old. A lot has changed since then. I left Confluent, transitioned into freelancing, worked at a hedge fund, and have been in and out of more than 20 organizations that use Kafka, MSK, and CCloud. Regrettably, JulieOps, which had been gaining traction, is no longer in active development. Building on the experiences from large strategic engagements, platform build-outs, and other interesting projects, I, along with two others — Sion and Andy, started working on (available on GitHub). With complete bias, I believe it’s the right approach for adopting Apache Kafka and avoiding the common mistakes that make this industry somewhat challenging. Please take a look and feel free to reach out.

Original Post

DevOps is a long road; it is a journey. Are you Dev or Ops or both? This is the challenge I have struggled with as DevOps has become a thing. I’m part-way through writing a Kafka DevOps blog post for Confluent and this thought is always at the top of my mind. However, while I grapple with it — I figured I would provide a compiled list of Kafka DevOps tools we see in the wild.

An important point, much like the DevOps definition below, is that Kafka DevOps is not clearly defined; it is what you make of it. Each organization will have its own predispositions and DevOps culture. However, to properly embrace the event-driven architecture, there is a fundamental upheaval of existing concepts. Teams and functionality need to be structured differently, aligned to deliver business functionality, based upon dataflows and related bounded contexts. When one of the key benefits is a 24x7 run-time, and dynamic path execution (dataflow routing); a new feature is enabled using a feature flag; then we are winning. We can avoid the dreaded big bang release that fills you with fear of having to spend the rest of the weekend doing a rollback.

What is DevOps Not? It’s Not NoOps. It’s Not (Just) Tools. It’s Not (Just) Culture. It’s Not (Just) Devs and Ops. It’s Not (Just) A Job Title. It’s Not Everything.

Some streaming applications can get complicated. Proper testing and ops strategies are essential

Viktor Gamov is also working on this — he just doesn’t know it yet ;)

Please leave your preferred tools and opinions in the comments section!

Kafka Specific



Schema Registry integration


  • KafkaCat generic non-JVM producer and consumer for Apache Kafka; think netcat for Kafka — by Magnus
  • Kaf (like KafkaCat — Kafka CLI inspired by kubectl & docker)
  • KSQL (Community license)
  • Lenses SQL
  • EventSim for data generation of simulated data
  • Kafka Avro datagen simulation tool


What’s missing

Quite a lot of stuff is missing, but that’s because most environments will be geared towards a particular deployment and automation runtime.

  • Data tooling — topic provisioning, topic pre-population (from source or flat file), topic-assertion-validation
  • Infrastructure automation tools (Ansible, Helm, Helm charts, Operators)
  • Schema/quota/governance automation via APIs and assertions
  • Security/ACL automation (Very important)


Want to learn more?



Neil Avery

@Liquidlabs, ex Confluent, CTO-Excelian, Thoughtworks. Founder Logscape, Startups, code-monkey, songwriter tennis-nut, snowboarding-nut, and Dad!