puppet-swift/manifests/storage/disk.pp

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Puppet

# This Puppet resource is based on the following
# instructions for creating a disk device:
# https://docs.openstack.org/swift/latest/development_saio.html
#
# ==Add a raw disk to a swift storage node==
#
# It will do two steps to create a disk device:
# - creates a disk table, use the whole disk instead
# to make the partition (e.g. use sdb as a whole)
# - formats the partition to an xfs device and
# mounts it as a block device at /srv/node/$name
#
# ATTENTION: You should not use the disk that your Operating System
# is installed on (typically /dev/sda/).
#
# === Parameters:
#
# [*base_dir*]
# (optional) The directory where the flat files will be stored that house
# the file system to be loop back mounted.
# Defaults to '/dev', assumes local disk devices
#
# [*mnt_base_dir*]
# (optional) The directory where the flat files that store the file system
# to be loop back mounted are actually mounted at.
# Defaults to '/srv/node', base directory where disks are mounted to
#
# [*byte_size*]
# (optional) The byte size that dd uses when it creates the file system.
# Defaults to '1024', block size for the disk. For very large partitions, this should be larger
#
# [*ext_args*]
# (optional) The external command that will be used in parted command.
# Default to ''. For making partitions, it would be 'mkpart primary 0% 100%'.
#
# =Example=
#
# Simply add one disk sdb:
#
# swift::storage::disk { "sdb":}
#
# Add more than one disks and overwrite byte_size:
#
# swift::storage::disk {['sdb','sdc','sdd']:
# byte_size => '2048',
# }
#
# TODO(yuxcer): maybe we can remove param $base_dir
#
define swift::storage::disk(
$base_dir = '/dev',
$mnt_base_dir = '/srv/node',
$byte_size = '1024',
$ext_args = '',
) {
include ::swift::deps
if(!defined(File[$mnt_base_dir])) {
file { $mnt_base_dir:
ensure => directory,
owner => 'swift',
group => 'swift',
require => Anchor['swift::config::begin'],
before => Anchor['swift::config::end'],
}
}
exec { "create_partition_label-${name}":
command => "parted -s ${base_dir}/${name} mklabel gpt ${ext_args}",
path => ['/usr/bin/', '/sbin','/bin'],
onlyif => ["test -b ${base_dir}/${name}","parted ${base_dir}/${name} print|tail -1|grep 'Error'"],
before => Anchor['swift::config::end'],
}
swift::storage::xfs { $name:
device => "${base_dir}/${name}",
mnt_base_dir => $mnt_base_dir,
byte_size => $byte_size,
loopback => false,
subscribe => Exec["create_partition_label-${name}"],
}
}