Cloud-Native Chaos Engineering; Kubernetes-Native Chaos Engineering; Chaos Engineering for Kubernetes

Overview

Litmus is a toolset to do cloud-native chaos engineering. Litmus provides tools to orchestrate chaos on Kubernetes to help SREs find weaknesses in their deployments. SREs use Litmus to run chaos experiments initially in staging environment and eventually in production to find bugs, vulnerabilities. Fixing the weaknesses leads to increased resilience of the system.

Litmus takes a cloud-native approach to create, manage and monitor chaos. Chaos is orchestrated using the following Kubernetes Custom Resource Definitions (CRDs):

• ChaosEngine: A resource to link a Kubernetes application or Kubernetes node to a ChaosExperiment. ChaosEngine is watched by Litmus' Chaos-Operator which then invokes Chaos-Experiments
• ChaosExperiment: A resource to group the configuration parameters of a chaos experiment. ChaosExperiment CRs are created by the operator when experiments are invoked by ChaosEngine.
• ChaosResult: A resource to hold the results of a chaos-experiment. The Chaos-exporter reads the results and exports the metrics into a configured Prometheus server.

Chaos experiments are hosted on hub.litmuschaos.io. It is a central hub where the application developers or vendors share their chaos experiments so that their users can use them to increase the resilience of the applications in production.

Use cases

• For Developers: To run chaos experiments during application development as an extension of unit testing or integration testing.
• For CI pipeline builders: To run chaos as a pipeline stage to find bugs when the application is subjected to fail paths in a pipeline.
• For SREs: To plan and schedule chaos experiments into the application and/or surrounding infrastructure. This practice identifies the weaknesses in the system and increases the resilience.

Demo

Getting Started with Litmus

See Litmus Docs.

Contributing to Chaos Hub

See Contributing to chaos hub

Adopters

(Send a PR to the above page if you are using Litmus in your chaos engineering practice)

License

Litmus is licensed under the Apache License, Version 2.0. See LICENSE for the full license text. Some of the projects used by the Litmus project may be governed by a different license, please refer to its specific license.

Important Links

Litmus Docs
CNCF Landscape