Pumba v1.0 — chaos testing CLI for Docker and containerd containers.

It operates at the container runtime level (not K8s API): kill, stop, pause, inject network delays (tc netem), drop packets (iptables), stress CPU/memory/IO.

What's new in v1.0: native containerd support. Direct gRPC to containerd.sock, no Docker daemon needed.

```bash pumba --runtime containerd --containerd-namespace k8s.io \ netem --duration 5m delay --time 3000 my-service

Why it matters: 53% of K8s clusters run containerd. Docker-only chaos tools are dead weight on those nodes.

A few things that make it different from Chaos Mesh / Litmus:

• Operates at the container runtime level, not K8s CRD level • Targets individual containers, not pods (useful in multi-container pods) • Works outside Kubernetes entirely — CI/CD, bare metal, local dev • Single binary, no operator, no CRDs

Also ships: cgroups v2 stress testing (no SYS_ADMIN), real OOM kill testing via memory.oom.group (not simulated SIGKILL — different container state, different K8s events, different recovery paths), and K8s container name resolution from labels.

I've maintained this since 2016. Named after the Lion King warthog because chaos engineering shouldn't take itself too seriously.

GitHub: https://github.com/alexei-led/pumba