aufs

Table of Contents

1. Module Description
2. Setup
3. Usage
4. Limitations
5. Development

Module Description

This module configures some systems directories (/usr/bin and /usr/share) as an aufs overlay to a remote chroot (mounted by NFS or GPFS).

It configures mounts in /etc/fstab and setup a service that tries to actively mount the overlay until the backend remote directory is available.

Setup

This module depends on the loaded aufs kernel module.

Usage

The class needs two directories the remote backend (on NFS or GPFS) and the local squashfs.

class { '::aufs':
  chroot_dir   => '/gpfscluster/chroot/scibian8',,
  squashfs_dir => '/lib/live/mount/rootfs/scibian8.squashfs',
}

Limitations

This module is mainly tested on Debian.

It only supports overlaying /usr/bin and /usr/share.

Development

Patches and issues can be submitted on GitHub: https://github.com/edf-hpc/puppet-hpc