ServiceDisruptor

The ServiceDisruptor class can inject different types of faults into the pods that back a Kubernetes service.

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

Methods

Example

The following example:

• Creates a disruptor for the nginx service
• Injects a delay of 100ms and a 10 percent of requests that return an http response code 500.

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

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

export default function () {
  const disruptor = new ServiceDisruptor('nginx', 'default');
  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 creating first a pod running nginx and exposing it as a service with the commands below, assuming you have [kubectl](https://kubernetes.io/docs/tasks/tools/#kubectl) installed in your environment: ```bash > kubectl run nginx --image=nginx > kubectl expose pod nginx --port 80 ```

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