lvm Cookbook

Installs lvm2 package and includes resources for managing LVM.

Note on LVM gems

This cookbook has used multiple variants of the ruby-lvm and ruby-lvm-attrib gems for interacting with LVM. Most recently we used di-ruby-lvm and di-ruby-lvm-attrib gems, which are no longer being maintained. As of the 4.0 release this cookbook uses new Chef maintained gems: chef-ruby-lvm and chef-ruby-lvm-attrib. The cookbook will first remove the old gems before load/installing the new gems, in order to prevent gem conflicts. If you previously used attributes to control the version of the gems to install, you will need to update to the latest attribute names to maintain that functionality.

Requirements

Platforms

• Debian/Ubuntu
• RHEL/CentOS/Scientific/Amazon/Oracle

Chef

• Chef 12.1+

Cookbooks

• none

Resources/Providers

lvm_physical_volume

Manages LVM physical volumes.

Actions

Parameters

Examples

lvm_physical_volume '/dev/sda'

lvm_logical_volume

Manages LVM logical volumes.

Actions

Parameters

<table>
<tr>
<th>Attribute</th>
<th>Description</th>
<th>Example</th>
<th>Default</th>
</tr>
<tr>
<td>name</td>
<td>(name attribute) Name of the logical volume</td>
<td><tt>bacon</tt></td>
<td></td>
</tr>
<tr>
<td>group</td>
<td>(required) Volume group in which to create the new volume (not required if the volume is declared inside of an lvm_volume_group block)</td>
<td><tt>bits</tt></td>
<td></td>
</tr>
<tr>
<td>size</td>
<td>(required) Size of the volume.
<ul>
<li>It can be the size of the volume with units (k, K, m, M, g, G, t, T)</li>
<li>It can be specified as the percentage of the size of the volume group</li>
</ul>
</td>
<td>
<ul>
<li><tt>10G</tt></li>
<li><tt>25%VG</tt></li>
</ul>
</td>
<td></td>
</tr>
<tr>
<td>filesystem</td>
<td>The format for the file system</td>
<td><tt>'ext4'</tt></td>
<td></td>
</tr>
<tr>
<td>filesystem_params</td>
<td>Optional parameters to use when formatting the file system</td>
<td><tt>'-j -L log -m 2 -i 10240 -J size=400 -b 4096'</tt></td>
<td></td>
</tr>
<tr>
<td>mount_point</td>
<td>
Either a String containing the path to the mount point, or a Hash with the following keys:
<ul>
<li>driver:
name: dokken
privileged: true # because Docker and SystemD/Upstart
chef_version: current - (required) the directory to mount the volume on</li>
<li><tt>options</tt> - the mount options for the volume</li>
<li><tt>dump</tt> - the <tt>dump</tt> field for the fstab entry</li>
<li><tt>pass</tt> - the <tt>pass</tt> field for the fstab entry</li>
</ul>
</td>
<td><tt>'/var/my/mount'</tt></td>
<td></td>
</tr>
<tr>
<td>physical_volumes</td>
<td>Array of physical volumes that the volume will be
restricted to</td>
<td><tt>['/dev/sda', '/dev/sdb']</tt></td>
<td></td>
</tr>
<tr>
<td>stripes</td>
<td>Number of stripes for the volume</td>
<td><tt>5</tt></td>
<td></td>
</tr>
<tr>
<td>stripe_size</td>
<td>Number of kilobytes per stripe segment (must be a power of 2 less than or equal to the physical extent size for the volume group)</td>
<td><tt>24</tt></td>
<td></td>
</tr>
<tr>
<td>mirrors</td>
<td>Number of mirrors for the volume</td>
<td><tt>5</tt></td>
<td></td>
</tr>
<tr>
<td>contiguous</td>
<td>Whether or not volume should use the contiguous allocation
policy</td>
<td><tt>true</tt></td>
<td><tt>false</tt></td>
</tr>
<tr>
<td>readahead</td>
<td>The readahead sector count for the volume (can be a value
between 2 and 120, 'auto', or 'none')</td>
<td><tt>'auto'</tt></td>
<td></td>
</tr>
<td>take_up_free_space</td>
<td>whether to have the LV take up the remainder of free space on the VG. Only valid for resize action</td>
<td><tt>true</tt></td>
<td>false</td>
</tr>
<tr>
<td>wipe_signatures</td>
<td>Force the creation of the Logical Volume, even if lvm detects existing LV signatures/td>
<td>true</td>
<td>false</td>
</tr>
</table>

Examples

lvm_logical_volume 'home' do
  group       'vg00'
  size        '25%VG'
  filesystem  'ext4'
  mount_point '/home'
  stripes     3
  mirrors     2
end

lvm_thin_pool

Manages LVM thin pools (which are simply logical volumes created with the --thinpool argument to lvcreate).

Actions

<table>
<tr>
<th>Action</th>
<th>Description</th>
</tr>
<tr>
<td>:create</td>
<td>(default) Create a new thin pool logical volume</td>
</tr>
<tr>
<td>:resize</td>
<td>Resize an existing thin pool logical volume</td>
</tr>
</table>

Parameters

<table>
<tr>
<th>Attribute</th>
<th>Description</th>
<th>Example</th>
<th>Default</th>
</tr>
<tr>
<td>name</td>
<td>(name attribute) Name of the logical volume</td>
<td><tt>bacon</tt></td>
<td></td>
</tr>
<tr>
<td>group</td>
<td>(required) Volume group in which to create the new volume (not required if the volume is declared inside of an lvm_volume_group block)</td>
<td><tt>bits</tt></td>
<td></td>
</tr>
<tr>
<td>size</td>
<td>(required) Size of the volume.
<ul>
<li>It can be the size of the volume with units (k, K, m, M, g, G, t, T)</li>
<li>It can be specified as the percentage of the size of the volume group</li>
</ul>
</td>
<td>
<ul>
<li><tt>10G</tt></li>
<li><tt>25%VG</tt></li>
</ul>
</td>
<td></td>
</tr>
<tr>
<td>filesystem</td>
<td>The format for the file system</td>
<td><tt>'ext4'</tt></td>
<td></td>
</tr>
<tr>
<td>filesystem_params</td>
<td>Optional parameters to use when formatting the file system</td>
<td><tt>'-j -L log -m 2 -i 10240 -J size=400 -b 4096'</tt></td>
<td></td>
</tr>
<tr>
<td>mount_point</td>
<td>
Either a String containing the path to the mount point, or a Hash with the following keys:
<ul>
<li>driver:
name: dokken
privileged: true # because Docker and SystemD/Upstart
chef_version: current - (required) the directory to mount the volume on</li>
<li><tt>options</tt> - the mount options for the volume</li>
<li><tt>dump</tt> - the <tt>dump</tt> field for the fstab entry</li>
<li><tt>pass</tt> - the <tt>pass</tt> field for the fstab entry</li>
</ul>
</td>
<td><tt>'/var/my/mount'</tt></td>
<td></td>
</tr>
<tr>
<td>physical_volumes</td>
<td>Array of physical volumes that the volume will be
restricted to</td>
<td><tt>['/dev/sda', '/dev/sdb']</tt></td>
<td></td>
</tr>
<tr>
<td>stripes</td>
<td>Number of stripes for the volume</td>
<td><tt>5</tt></td>
<td></td>
</tr>
<tr>
<td>stripe_size</td>
<td>Number of kilobytes per stripe segment (must be a power of 2 less than or equal to the physical extent size for the volume group)</td>
<td><tt>24</tt></td>
<td></td>
</tr>
<tr>
<td>mirrors</td>
<td>Number of mirrors for the volume</td>
<td><tt>5</tt></td>
<td></td>
</tr>
<tr>
<td>contiguous</td>
<td>Whether or not volume should use the contiguous allocation
policy</td>
<td><tt>true</tt></td>
<td><tt>false</tt></td>
</tr>
<tr>
<td>readahead</td>
<td>The readahead sector count for the volume (can be a value
between 2 and 120, 'auto', or 'none')</td>
<td><tt>'auto'</tt></td>
<td></td>
</tr>
<td>take_up_free_space</td>
<td>whether to have the LV take up the remainder of free space on the VG. Only valid for resize action</td>
<td><tt>true</tt></td>
<td>false</td>
</tr>
<tr>
<td>thin_volume</td>
<td>Shortcut for creating a new lvm_thin_volume definition (the volumes will be created in the order they are declared)</td>
<td></td>
<td></td>
</tr>
</table>

lvm_thin_volume

Manages LVM thin volumes (which are simply logical volumes created with the --thin argument to lvcreate and are contained inside of
other logical volumes that were created with the --thinpool option to lvcreate).

Actions

<table>
<tr>
<th>Action</th>
<th>Description</th>
</tr>
<tr>
<td>:create</td>
<td>(default) Create a new thin logical volume</td>
</tr>
<tr>
<td>:resize</td>
<td>Resize an existing thin logical volume</td>
</tr>
</table>

Parameters

<table>
<tr>
<th>Attribute</th>
<th>Description</th>
<th>Example</th>
<th>Default</th>
</tr>
<tr>
<td>name</td>
<td>(name attribute) Name of the logical volume</td>
<td><tt>bacon</tt></td>
<td></td>
</tr>
<tr>
<td>group</td>
<td>(required) Volume group in which to create the new volume (not required if the volume is declared inside of an lvm_volume_group block)</td>
<td><tt>bits</tt></td>
<td></td>
</tr>
<tr>
<td>pool</td>
<td>(required) Thin pool volume in which to create the new volume (not required if the volume is declared inside of an lvm_thin_pool block)</td>
<td><tt>bits</tt></td>
<td></td>
</tr>
<tr>
<td>size</td>
<td>(required) Size of the volume.
<ul>
<li>It can be the size of the volume with units (k, K, m, M, g, G, t, T)</li>
</ul>
</td>
<td>
<ul>
<li><tt>10G</tt></li>
</ul>
</td>
<td></td>
</tr>
<tr>
<td>filesystem</td>
<td>The format for the file system</td>
<td><tt>'ext4'</tt></td>
<td></td>
</tr>
<tr>
<td>filesystem_params</td>
<td>Optional parameters to use when formatting the file system</td>
<td><tt>'-j -L log -m 2 -i 10240 -J size=400 -b 4096'</tt></td>
<td></td>
</tr>
<tr>
<td>mount_point</td>
<td>
Either a String containing the path to the mount point, or a Hash with the following keys:
<ul>
<li>driver:
name: dokken
privileged: true # because Docker and SystemD/Upstart
chef_version: current - (required) the directory to mount the volume on</li>
<li><tt>options</tt> - the mount options for the volume</li>
<li><tt>dump</tt> - the <tt>dump</tt> field for the fstab entry</li>
<li><tt>pass</tt> - the <tt>pass</tt> field for the fstab entry</li>
</ul>
</td>
<td><tt>'/var/my/mount'</tt></td>
<td></td>
</tr>
</table>

Examples

lvm_thin_volume 'thin01' do
  group       'vg00'
  pool        'lv-thin-pool'
  size        '5G'
  filesystem  'ext4'
  mount_point location: '/var/thin01', options: 'noatime,nodiratime'
end

lvm_volume_group

Manages LVM volume groups.

Actions

Parameters

Examples

lvm_volume_group 'vg00' do
  physical_volumes ['/dev/sda', '/dev/sdb', '/dev/sdc']
  wipe_signatures true

  logical_volume 'logs' do
    size        '1G'
    filesystem  'xfs'
    mount_point location: '/var/log', options: 'noatime,nodiratime'
    stripes     3
  end

  logical_volume 'home' do
    size        '25%VG'
    filesystem  'ext4'
    mount_point '/home'
    stripes     3
    mirrors     2
  end

  thin_pool "lv-thin-pool" do
    size '5G'
    stripes 2

    thin_volume "thin01" do
      size '10G'
      filesystem  'ext4'
      mount_point location: '/var/thin01', options: 'noatime,nodiratime'
    end
  end
end

Usage

Include the default recipe in your run list on a node, in a role, or in another recipe:

run_list(
  'recipe[lvm::default]'
)

Depend on lvm in any cookbook that uses its Resources/Providers:

# other_cookbook/metadata.rb
depends 'lvm'

Caveats

This cookbook depends on the chef-ruby-lvm and chef-ruby-lvm-attrib gems. The chef-ruby-lvm-attrib gem in particular is a common cause of failures when using the providers. If you get a failure with an error message similar to

No such file or directory - /opt/chef/.../chef-ruby-lvm-attrib-0.0.3/lib/lvm/attributes/2.02.300(2)/lvs.yaml

then you are running a version of lvm that the gems do not support. However, getting support added is usually pretty easy. Just follow the instructions on "Adding Attributes" in the chef-ruby-lvm-attrib README.

License and Authors

• Author:: Joshua Timberman joshua@chef.io
• Author:: Greg Symons gsymons@drillinginfo.com

Copyright:: 2011-2016, Chef Software, Inc

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

    http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.