PodDisruptor

The PodDisruptor class can inject different types of faults into the pods that match a selection criteria.

To construct a PodDisruptor, use the PodDisruptor() constructor.

Methods

Example

This example:

• Creates a selector that matches all pods in the default namespace with the run=nginx label
• Injects a delay of 100ms and makes 10 percent of requests return an http response code 500.

import { PodDisruptor } from 'k6/x/disruptor';

const selector = {
  namespace: 'default',
  select: {
    labels: {
      run: 'nginx',
    },
  },
};

const fault = {
  averageDelay: 100,
  errorRate: 0.1,
  errorCode: 500,
};

export default function () {
  const disruptor = new PodDisruptor(selector);
  const targets = disruptor.targets();
  if (targets.length != 1) {
    throw new Error('expected list to have one target');
  }

  disruptor.injectHTTPFaults(fault, 30);
}

note

You can test this script by first creating a pod running nginx with the command below, assuming you have kubectl installed in your environment:

$ kubectl run nginx --image=nginx

Copy

You can also use the xk6-kubernetes extension for creating these resources from your test script.