Adding XVFB (X Virtual Frame Buffer) and wkhtmltopdf to CageFS involves enabling and configuring them within the CageFS environment. Here are the steps to do so:

1. Enable XVFB and wkhtmltopdf for CageFS:

1.1. Edit CageFS Configuration:

• Open the CageFS configuration file. This file is often located at /etc/cagefs/conf/cagefs.conf.

• Add wkhtmltopdf and Xvfb to the list of CageFS-enabled binaries. It should look something like this:

• Save the file.

1.2. Reinitialize CageFS:

• After making changes to the configuration, you'll need to reinitialize CageFS for the changes to take effect. You can do this using the following command:

2. Test XVFB and wkhtmltopdf inside CageFS:

• Access your CageFS environment and verify that Xvfb and wkhtmltopdf are now available.

3. Set Permissions (if needed):

• Ensure that the permissions are correctly set for the Xvfb and wkhtmltopdf binaries and related libraries within CageFS.

4. Verify Installation:

• Run Xvfb and wkhtmltopdf commands within CageFS to ensure they work as expected.

Please note that the specific steps may vary depending on your server environment and the version of CageFS you're using. Always refer to the documentation provided by the CageFS team or your hosting provider for any platform-specific instructions.

Remember to perform these actions with caution, especially when dealing with system-level configurations. If you're not comfortable making these changes, consider seeking assistance from a system administrator or your hosting provider's support team.