puppet-swift/manifests/storage/loopback.pp
Adam Vinsh c659733d39 Add hooks for external install & svc management
This adds defined anchor points for external modules to hook into the
software install, config and service dependency chain.  This allows
external modules to manage software installation (virtualenv,
containers, etc) and service management (pacemaker) without needing rely
on resources that may change or be renamed.

Change-Id: I00cf4846bb933291469be94c9debed425eddf798
2016-05-25 08:52:47 -04:00

81 lines
2.5 KiB
Puppet

# follow the instructions for creating a loopback device
# for storage from: http://swift.openstack.org/development_saio.html
#
#
# creates a managed loopback interface
# - creates a file
# - formats the file to be an xfs device and mounts it as a loopback device at /srv/node/$name
# - sets up each mount point as a swift endpoint
# === 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
#
# [*seek*]
# (optional) The size of the file system that will be created.
# Defaults to 25000.
#
# [*fstype*]
# (optional) The filesystem type.
# Defaults to 'xfs'.
#
define swift::storage::loopback(
$base_dir = '/srv/loopback-device',
$mnt_base_dir = '/srv/node',
$byte_size = '1024',
$seek = '25000',
$fstype = 'xfs'
) {
include ::swift::deps
if(!defined(File[$base_dir])) {
file { $base_dir:
ensure => directory,
require => Anchor['swift::config::begin'],
before => Anchor['swift::config::end'],
}
}
if(!defined(File[$mnt_base_dir])) {
file { $mnt_base_dir:
ensure => directory,
owner => 'swift',
group => 'swift',
require => Anchor['swift::config::begin'],
before => Anchor['swift::config::end'],
}
}
exec { "create_partition-${name}":
command => "dd if=/dev/zero of=${base_dir}/${name} bs=${byte_size} count=0 seek=${seek}",
path => ['/usr/bin/', '/bin'],
unless => "test -f ${base_dir}/${name}",
require => File[$base_dir],
before => Anchor['swift::config::end'],
}
$storage_params = {
device => "${base_dir}/${name}",
mnt_base_dir => $mnt_base_dir,
byte_size => $byte_size,
subscribe => Exec["create_partition-${name}"],
loopback => true,
}
# NOTE(mgagne) Puppet does not allow hash keys to be bare variables.
# Keep double-quotes to avoid parse errors.
$device_config_hash = { "${name}" => $storage_params }
create_resources("swift::storage::${fstype}", $device_config_hash)
}