I've recently moved my node.js app into a docker image and I'd like to run my tests inside the image. My mocha/node tests work fine but the Karma tests involve starting Chrome to run the tests and Chrome isn't installed in the container. How do I go about addressing this? <ul> <li>Install Chrome in the Container? Seems less than ideal as I don't want to ship Chrome to my production servers inside the container.</li> <li>Somehow allow it to connect to Chrome on the host?</li> <li>Create a new image that inherits from my app image and adds Chrome and other things?</li> </ul> Googling 'docker & karma' reveals docker images out there but I can't find instructions on how to think about the problem and the best approach.

I've found this docker image to be an excellent starting point for running karma tests quickly inside a docker container on Concourse CI: https://hub.docker.com/r/markadams/chromium-xvfb-js/ It contains node 6.x (latest) + npm and a headless chromium instance using X virtual framebuffer. Working great for me!

How to run Karma tests from docker container?

Tags:

javascript

docker

karma-runner

I've recently moved my node.js app into a docker image and I'd like to run my tests inside the image. My mocha/node tests work fine but the Karma tests involve starting Chrome to run the tests and Chrome isn't installed in the container.

How do I go about addressing this?

Install Chrome in the Container? Seems less than ideal as I don't want to ship Chrome to my production servers inside the container.
Somehow allow it to connect to Chrome on the host?
Create a new image that inherits from my app image and adds Chrome and other things?

Googling 'docker & karma' reveals docker images out there but I can't find instructions on how to think about the problem and the best approach.

880

asked Dec 15 '15 10:12

MichaelJones

1 Answers

I've found this docker image to be an excellent starting point for running karma tests quickly inside a docker container on Concourse CI:

https://hub.docker.com/r/markadams/chromium-xvfb-js/

It contains node 6.x (latest) + npm and a headless chromium instance using X virtual framebuffer. Working great for me!

answered Sep 25 '22 11:09

Johannes Rudolph

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