How to run Node.js/Ruby applications on Plesk server with CloudLinux OS and CageFS enabled?

Question

How to run Node.js/Ruby applications on a Plesk server with CloudLinux OS and CageFS enabled?

Answer

Such configuration is supported in Plesk Obsidian.

To set up server to run Node.js/Ruby applications on Cloudlinux with CageFS enabled, follow the steps below:

1. Log in to Plesk.
2. Install Phusion Passenger server, Ruby support, Tools required for building Ruby gems and NodeJS support in Tools & Settings > Updates & Upgrades (or Updates) > Add/Remove Components > Web hosting.
3. Connect to the server using SSH.

4. Install the package passenger-cagefs, which provides integration with the CageFS:

   # yum -y install passenger-cagefs

   Note: For the details on how the integration is performed, refer to the README file of the package, path to which can be found as follows: rpm -ql passenger-cagefs | grep README.

5. Update CageFS template:

   # cagefsctl --force-update

6. Add CageFS mount points necessary for Phusion Passenger:

   # passenger-add-cagefs-mp --verbose

7. Remount CageFS skeleton directory and all users:

   # cagefsctl --remount-all

8. Reload web server:

   # plesk sbin pleskrc apache reload
   # plesk sbin pleskrc nginx reload

9. Follow the documentation to deploy and start the application:
   • Administrator's Guide: Node.js Support
   • Administrator's Guide: Ruby Support

Additional information

NodeJS application does not work if a subscription user is enabled in CageFS