OpenStack Nova Puppet Module
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# == Class: nova::compute::libvirt::qemu
#
# Configures qemu limits for use by libvirt
#
# === Parameters:
#
# [*configure_qemu*]
# (optional) Whether or not configure qemu bits.
# Defaults to false.
#
# [*group*]
# (optional) Group under which the qemu should run.
# Defaults to undef.
#
# [*max_files*]
# (optional) Maximum number of opened files, per process.
# Defaults to 1024.
#
# [*max_processes*]
# (optional) Maximum number of processes that can be run by qemu user.
# Defaults to 4096.
#
# [*vnc_tls*]
# (optional) Enables TLS for vnc connections.
# Defaults to false.
#
# [*vnc_tls_verify*]
# (optional) Enables TLS client cert verification when vnc_tls is enabled.
# Defaults to true.
#
# [*memory_backing_dir*]
# (optional) This directory is used for memoryBacking source if configured as file.
# NOTE: big files will be stored here
# Defaults to undef.
#
# [*nbd_tls*]
# (optional) Enables TLS for nbd connections.
# Defaults to false.
#
# [*libvirt_version*]
# (optional) installed libvirt version. Default is automatic detected depending
# of the used OS installed via ::nova::compute::libvirt::version::default .
# Defaults to ::nova::compute::libvirt::version::default
#
class nova::compute::libvirt::qemu(
$configure_qemu = false,
$group = undef,
$max_files = 1024,
$max_processes = 4096,
$vnc_tls = false,
$vnc_tls_verify = true,
$memory_backing_dir = undef,
$nbd_tls = false,
$libvirt_version = $::nova::compute::libvirt::version::default,
) inherits nova::compute::libvirt::version {
include nova::deps
require nova::compute::libvirt
Anchor['nova::config::begin']
-> Augeas<| tag == 'qemu-conf-augeas'|>
-> Anchor['nova::config::end']
Augeas<| tag == 'qemu-conf-augeas'|>
~> Service['libvirt']
if $configure_qemu {
if $vnc_tls {
$vnc_tls_value = 1
$vnc_tls_verify_value = $vnc_tls_verify ? { true => 1, false => 0 }
} else {
$vnc_tls_value = 0
$vnc_tls_verify_value = 0
}
if $nbd_tls {
$nbd_tls_value = 1
} else {
$nbd_tls_value = 0
}
$augues_changes_default = [
"set max_files ${max_files}",
"set max_processes ${max_processes}",
"set vnc_tls ${vnc_tls_value}",
"set vnc_tls_x509_verify ${vnc_tls_verify_value}",
]
if $group and !empty($group) {
$augues_group_changes = ["set group ${group}"]
} else {
$augues_group_changes = []
}
if $memory_backing_dir and !empty($memory_backing_dir) {
$augues_memory_backing_dir_changes = ["set memory_backing_dir ${memory_backing_dir}"]
} else {
$augues_memory_backing_dir_changes = []
}
if versioncmp($libvirt_version, '4.5') >= 0 {
$augues_nbd_tls_changes = ["set nbd_tls ${nbd_tls_value}"]
} else {
$augues_nbd_tls_changes = []
}
$augues_changes = concat($augues_changes_default, $augues_group_changes, $augues_memory_backing_dir_changes, $augues_nbd_tls_changes)
augeas { 'qemu-conf-limits':
context => '/files/etc/libvirt/qemu.conf',
changes => $augues_changes,
tag => 'qemu-conf-augeas',
}
} else {
$augues_changes_default = [
'rm max_files',
'rm max_processes',
'rm group',
'rm vnc_tls',
'rm vnc_tls_x509_verify',
'rm memory_backing_dir',
]
if versioncmp($libvirt_version, '4.5') >= 0 {
$augues_nbd_tls_changes = ['rm nbd_tls']
} else {
$augues_nbd_tls_changes = []
}
$augues_changes = concat($augues_changes_default, $augues_nbd_tls_changes)
augeas { 'qemu-conf-limits':
context => '/files/etc/libvirt/qemu.conf',
changes => $augues_changes,
tag => 'qemu-conf-augeas',
}
}
}