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Chaos Monkey for Spring Boot vs Krkn

Both stand on chaos engineering platforms. Which one you can start free with, which one lets you read the code, and what each costs once you pay.

Chaos Monkey for Spring Boot

Free plan APISelf-hosted

Choose Chaos Monkey for Spring Boot when your team needs to introduce operational disruptions into a Spring Boot service and inspect its behavior. Check the version compatibility carefully, and begin experiments on a noncritical service outside production as the project advises.

Visit Chaos Monkey for Spring Boot

Krkn

Free plan APILinuxSelf-hosted+1

Krkn offers several ways to run a wide range of cluster disruption scenarios and evaluate their impact against SLOs. Check its access and runtime requirements, and account for the possibility that some disruptions cannot be automatically recovered.

Visit Krkn

The facts

Chaos Monkey for Spring BootKrkn
Free planYesYes
Open sourceNot publishedNot published
Runs onAPI, Self-hostedAPI, Linux, Self-hosted, Web
Lowest paid planNot publishedFree or on request
Plans publishedNone1
MakerNot publishedNot published
Websitecodecentric.github.iokrkn-chaos.dev
On chaos engineering platforms#10 of 25#6 of 25

Chaos Monkey for Spring Boot: what it does well

  • Free and open source, with contributions welcomed.
  • Can be added as a project dependency or external dependency.
  • Targets annotated beans, health indicators, and outgoing-request clients.
  • Runtime configuration controls are available through Actuator HTTP or JMX.
  • Documentation covers Unleash and several monitoring systems.

What to know first

  • Each version targets a specific Spring Boot version.
  • Actuator must be a project dependency for runtime configuration controls.
  • The external JAR may break an app using a different Spring Boot version.

Krkn: what it does well

  • More than 20 chaos scenarios
  • Validates SLO criteria with Prometheus metrics
  • Offers CLI, containers, dashboard, and Python options
  • Can monitor cluster health through Cerberus

What to know first

  • Requires cluster-admin kubeconfig access
  • Requires Kubernetes or OpenShift 1.21+
  • Some scenarios may leave a system unrecoverable
  • Does not currently adhere to compliance standards

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