Cypress doesn't start when running in RHEL7 docker container

• Operating System: RHEL 7.4
• Cypress Version: 0.20.0
• Browser Version: N/A

Is this a Feature or Bug?

Bug or maybe just an unsupported OS

Current behavior:

Cypress fails to start. It produces the following output:

It looks like this is your first time using Cypress: 0.20.0

[16:44:03]  Verifying Cypress can run /data/node_modules/cypress/dist/Cypress [started]
[16:44:05]  Verifying Cypress can run /data/node_modules/cypress/dist/Cypress [failed]
Cypress failed to start.

This is usually caused by a missing library or dependency.

The error below should indicate which dependency is missing.

https://on.cypress.io/required-dependencies

If you using Docker, we provide containers with all required dependencies installed.
----------
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Platform: linux (Red Hat Linux - 7.4)
Cypress Version: 0.20.0

NOTE: despite declaring it would list the missing dependencies, the output does not contain any.

Desired behavior:

Cypress starts, or gives better output as to what is missing or what went wrong.

How to reproduce:

Run cypress run in a RHEL7 docker image with the following dependencies installed:

yum install -y xorg-x11-server-Xvfb GConf2 alsa-lib libXScrnSaver gtk2 nss-devel libnotify-devel

Test code:

N/A

Additional Info (images, stack traces, etc)

The dependencies listed in the CI documentation are for an apt-get command, but RHEL uses yum. We attempted to find the relevant dependencies for yum, but it is entirely likely that we got them wrong. The following shows which dependencies were used as replacements for the apt-get versions:

xvfb -> xorg-x11-server-Xvfb
ibgconf-2-3 -> GConf2
libasound -> alsa-lib
libxss1 -> libXScrnSaver
libgtk2.0-0 -> gtk2
libnss3 -> nss-devel
libnotify-dev -> libnotify-devel

The reason we are trying to run on a RHEL image instead of just using your docker container is that it needs to run in our corporate network and there are lots of certificates and other configurations required, so we were hoping to make it easier for us and use one of our base images and install Cypress on top of that.

[tormoseng]

Otherwise you might also try the “under hood” xvfb-run command:

$ xvfb-run a -s “-screen 0 1280x1024x24” ./node_modules/cypress/dist/Cypress/Cypress --run-project <project.basedir> --spec <project.basedir><spec.file>

[jennifer-shehane]

@ajzawawi Open an new issue in our docs to document the RHEL… Our documentation is open source and contributions are welcome.