stress-cpu

Generic CPU stress action. Runs CPU stress workers via the daemon without pod-level cgroup scoping. Targets nodes directly.

Target kind: Node
Implementation: Daemon (ExecStressChaos with stressorType: cpu)
Rollback: Yes — sends CancelChaos to terminate stress-ng

Parameters

Name	Type	Required	Default	Description
workers	string	No	"1"	Number of CPU stress worker threads
load	string	No	"100"	Target CPU load percentage (0-100)
duration	string	No	experiment duration	How long to run stress

Example

apiVersion: chaos.chaosplane.io/v1alpha1
kind: ChaosExperiment
metadata:
  name: stress-cpu-example
  namespace: chaosplane
spec:
  target:
    kind: Node
    labelSelector:
      matchLabels:
        node-role.kubernetes.io/worker: ""
  action:
    type: stress-cpu
    parameters:
      workers: "2"
      load: "75"
      duration: "60s"
  duration: 60s
  rollback:
    enabled: true

Rollback behavior

Sends CancelChaos RPC to the daemon, which terminates the stress-ng process.

Implementation notes

This is the generic stress-cpu action registered in the executor registry. It behaves identically to node-cpu-stress but is registered under the stress-cpu action type name. Use pod-cpu-stress if you want CPU stress scoped to a specific pod's cgroup.