chaosd vs FaultMesh

Chaosd is free Apache-2.0 software for injecting and recovering faults on physical machines. It can create process, network, CPU or memory pressure, disk, and host faults. Use it as a command-line tool or run it as a background service controlled through HTTP requests. Chaosd is deployed separately from Chaos Mesh; PhysicalMachineChaos experiments require service mode on each targeted physical or virtual machine. The documented environment requires glibc 2.17 or later, and the binary download described is a Linux amd64 tarball. Network experiments using tc or iptables require sudo or root privileges. Deployment prerequisites include tc, ipset, and iptables; source builds additionally list stress-ng and byteman. Experiments can be searched and recovered by UID. TLS certificates are shown for service security, and running without generated certificates is not recommended.

FaultMesh is a Kubernetes-native platform for testing system resilience through controlled failures, anomaly detection and automatic remediation. It injects latency, packet loss, pod kills, CPU stress and memory stress using Chaos Mesh CRDs. Real-time metric analysis can surface regressions, while rules and actions can heal systems automatically. The platform scores services across six dimensions and assigns L1–L5 maturity levels. It tracks SLO error budgets and supports multi-step chaos game days with checks between steps. Safety controls include blast-radius limits, dry runs, an error-budget gate, a background monitor and an instant kill switch. Teams can use managed SaaS or deploy a Kubernetes Operator in their own cluster, where data stays inside their perimeter. Security features include JWT and API-key authentication, role-based Admin, Operator and Viewer access, encryption in transit and an immutable audit trail. The maker describes controls as SOC 2-aligned, with formal certification on the roadmap, and data handling as GDPR-aligned. Starter is free for up to three services; Growth costs $49 a month billed per host, and a 14-day trial is available.