In a shared hosting environment, CageFS is designed to provide a virtualized file system for each user, ensuring they can only access their own files. However, there might be scenarios where you need to share additional directories with a specific user.

To do this, you'll need to selectively mount directories from the main system into the user's CageFS environment. Here's a general outline of the steps:

1. Identify Directories to Share:

   • Determine which directories you want to share with the user. Ensure that they are secure and don't contain sensitive or system-critical information.

2. Mount Directories into CageFS:

   • You'll need to mount the directories you've identified into the user's CageFS environment.

   • For example, if you want to share /shared_directory with the user, you would use a command like:

     bash

• • mount --bind /shared_directory /home/user_username/cagefs-shared-directory
    • Replace /shared_directory with the actual directory path you want to share.
    • Replace /home/user_username with the home directory of the user.
    • Create a new directory  cagefs-shared-directory inside the user's home directory.

• Add the Mount Point to CageFS:

  • Edit the CageFS mount point configuration file to include the newly shared directory:

    bash
• • echo "/home/user_username/cagefs-shared-directory" >> /etc/cagefs/cagefs.mp

  • This ensures that CageFS includes this directory in the virtualized environment for the user.

• Reinitialize CageFS:

  • After making changes to the CageFS configuration, you'll need to reinitialize CageFS for the changes to take effect:

    bash