Simple way to create an overlayfs in ubuntu within Python.

Note: overlayUtils requires root. Be sure you're aware of that. It's still very much a work in progress so please use with caution and hopefully on VM that you do not care about.

• Mounting works! (Tested and works)
• Creating a table of mounted filesystems
• Unmounting

Create an overlay at dest:

import overlayUtils

overlay = overlayUtils.mount('dest', 'lower', 'upper')

overlay.unmount()

If the destination already has something mounted it won't mount again:

import overlayUtils

overlay1 = overlayUtils.mount('dest', 'lower', 'upper')

# This will throw an error.
overlay2 = overlayUtils.mount('dest', 'lower', 'upper')

List all overlays:

import overlayUtils

overlays = overlayUtils.list()
# Overlays is now a list of all the currently mounted overlays on your
# system

Grab a previously mounted overlayfs:

import overlayUtils

overlay = overlayUtils.get('/some_mount_point')

That's all. It's a relatively simple tool.