K6-operator job failing because K6_BROWSER_ENABLED not set

Grafana k6 k6-operator
1

Title says it all; can I set K6_BROWSER_ENABLED somewhere in the CRD spec so that the job spec has it?

3

Hi @adam-xero

Welcome to the community forum :wave:

I think you can use the usual Kubernetes way to Define Environment Variables for a Container. Adding the configuration to the runner, similar to https://github.com/javaducky/demo-k6-operator/blob/main/resources/k6-output-grafana-cloud.yaml:

spec: 
.....
  runner:
    env:
        - name: K6_BROWSER_ENABLED
          value: true

I haven’t tested this, as I do not have a Kubernetes cluster available at this time. It works with Docker similarly. With the script in headless mode:

import { chromium } from 'k6/experimental/browser';

export default async function () {
    const browser = chromium.launch({
        headless: true,
        timeout: '60s',
    });
    const page = browser.newPage();

    try {
        await page.goto('https://test.k6.io/');
        page.screenshot({ path: 'screenshot.png' });
    } finally {
        page.close();
        browser.close();
    }
}

I successfully run docker run --rm -e K6_BROWSER_ENABLED=true -i grafana/k6 run - <script.js.

Similarly in Kubernetes, we should add the environment variable K6_BROWSER_ENABLED. Let me know if it does not work in Kubernetes, and I’ll dig further.

Cheers!

5

Heya @eyeveebe thanks for your response! This link https://github.com/javaducky/demo-k6-operator/blob/main/resources/k6-output-grafana-cloud.yaml: is unfortunately missing. We were following this guide Running distributed k6 tests on Kubernetes and so far not sure where we can configure or update the runner spec

6

Oh actually looks like I can just add it to the CRD https://github.com/javaducky/demo-k6-operator/blob/k6-v0.41.0/resources/k6-output-grafana-cloud.yaml

7

If anyone has stumbled into this, tldr you can set it in the K6 custom resource e.g.

apiVersion: k6.io/v1alpha1
kind: K6
metadata:
  name: crocodile-stress-test
spec:
  parallelism: 4
  runner:
    env:
      - name: K6_BROWSER_ENABLED
        value: "true"
  script:
    configMap:
      name: crocodile-stress-test
      file: test.js
1 Like
8

hi sorry to somewhat hijack this thread but it looks like you are trying to run k6 browser test on k6-operator? when i tried, it seems like chrome is not installed on the image i get this error:

time="2023-07-05T23:22:10Z" level=error msg="Uncaught (in promise) GoError: launching browser: exec: no command\n\tat github.com/grafana/xk6-browser/browser.mapBrowserType.func2 (native)\n\tat file:///test/fes_overview.js:14:36(46)\n" executor=per-vu-iterations scenario=default

how did you get around that? thanks!