6.4Choosing the Right Tool

Decision Framework

Is your infrastructure primarily Kubernetes?
  |
  Yes --> Do you need commercial support and a polished UI?
  |         |
  |         Yes --> Gremlin
  |         No  --> Do you need JVM-specific chaos (method delay, exception)?
  |                   |
  |                   Yes --> Chaos Mesh
  |                   No  --> Litmus (default for K8s)
  |
  No --> Is your infrastructure primarily AWS?
          |
          Yes --> AWS Fault Injection Service
          No  --> Gremlin (broadest platform support)

Hybrid Approaches

Many organizations use multiple chaos tools for different purposes:

• Litmus for Kubernetes workloads -- pod, network, and DNS chaos
• AWS FIS for infrastructure-level experiments -- AZ failure, RDS failover
• Custom scripts for application-level chaos -- Feature flag toggling, dependency mocking

This layered approach provides comprehensive coverage without forcing a single tool to cover every scenario.