Subvolume type for Puppet

A basic type and provider to manage subvolumes (so far only on btrfs filesystems) using Puppet.

See [puppet-btrfs][https://github.com/woldan/puppet-btrfs] for managing the btrfs filesystem itself.

Currently this is work in progress and not yet ready for public usage. You are welcome to participate, though.

Prerequisites

The specified filesystem need to be btrfs formatted and mounted. I would recommend to ensure both with a Puppet resource as well, such as the aforementioned [puppet-btrfs][https://github.com/woldan/puppet-btrfs].

Declaring btrfs subvolumes

To declare a btrfs subvolume use a definition like this:

subvolume { "/some/mountpoint/subvolume" :
  require => Btrfs["/some/mountpoint"],
  ensure => present,
}

This effects in creation of the sobvolume if necessary: btrfs subvolume create <subvolume-path> The require clause would relate to a filesystem declaration like this one:

btrfs { "/some/mountpoint" :
  ensure => present,
  device => "/dev/sdb",
}