Puppet Class: nova

Inherits:
nova::params
Defined in:
manifests/init.pp

Overview

Class: nova

This class is used to specify configuration parameters that are common across all nova services.

Parameters:

ensure_package

(optional) The state of nova packages Defaults to ‘present’

nova_cluster_id

(optional) Deprecated. This parameter does nothing and will be removed. Defaults to ‘localcluster’

sql_connection

(optional) Deprecated. Use database_connection instead. Defaults to false

sql_idle_timeout

(optional) Deprecated. Use database_idle_timeout instead Defaults to false

database_connection

(optional) Connection url to connect to nova database. Defaults to false

slave_connection

(optional) Connection url to connect to nova slave database (read-only). Defaults to false

database_idle_timeout

(optional) Timeout before idle db connections are reaped. Defaults to 3600

rpc_backend

(optional) The rpc backend implementation to use, can be:

rabbit (for rabbitmq)
qpid (for qpid)
zmq (for zeromq)

Defaults to ‘rabbit’

image_service

(optional) Service used to search for and retrieve images. Defaults to ‘nova.image.local.LocalImageService’

glance_api_servers

(optional) List of addresses for api servers. Defaults to ‘localhost:9292’

memcached_servers

(optional) Use memcached instead of in-process cache. Supply a list of memcached server IP’s:Memcached Port. Defaults to false

rabbit_host

(optional) Location of rabbitmq installation. Defaults to ‘localhost’

rabbit_hosts

(optional) List of clustered rabbit servers. Defaults to false

rabbit_port

(optional) Port for rabbitmq instance. Defaults to ‘5672’

rabbit_password

(optional) Password used to connect to rabbitmq. Defaults to ‘guest’

rabbit_userid

(optional) User used to connect to rabbitmq. Defaults to ‘guest’

rabbit_virtual_host

(optional) The RabbitMQ virtual host. Defaults to ‘/’

rabbit_use_ssl

(optional) Connect over SSL for RabbitMQ Defaults to false

kombu_ssl_ca_certs

(optional) SSL certification authority file (valid only if SSL enabled). Defaults to undef

kombu_ssl_certfile

(optional) SSL cert file (valid only if SSL enabled). Defaults to undef

kombu_ssl_keyfile

(optional) SSL key file (valid only if SSL enabled). Defaults to undef

kombu_ssl_version

(optional) SSL version to use (valid only if SSL enabled). Valid values are TLSv1, SSLv23 and SSLv3. SSLv2 may be available on some distributions. Defaults to ‘TLSv1’

amqp_durable_queues

(optional) Define queues as “durable” to rabbitmq. Defaults to false

qpid_hostname

(optional) Location of qpid server Defaults to ‘localhost’

qpid_port

(optional) Port for qpid server Defaults to ‘5672’

qpid_username

(optional) Username to use when connecting to qpid Defaults to ‘guest’

qpid_password

(optional) Password to use when connecting to qpid Defaults to ‘guest’

qpid_heartbeat

(optional) Seconds between connection keepalive heartbeats Defaults to 60

qpid_protocol

(optional) Transport to use, either ‘tcp’ or ‘ssl” Defaults to ’tcp’

qpid_sasl_mechanisms

(optional) Enable one or more SASL mechanisms Defaults to false

qpid_tcp_nodelay

(optional) Disable Nagle algorithm Defaults to true

service_down_time

(optional) Maximum time since last check-in for up service. Defaults to 60

logdir

(optional) Deprecated. Use log_dir instead. Defaults to false

log_dir

(optional) Directory where logs should be stored. If set to boolean false, it will not log to any directory. Defaults to ‘/var/log/nova’

state_path

(optional) Directory for storing state. Defaults to ‘/var/lib/nova’

lock_path

(optional) Directory for lock files. On RHEL will be ‘/var/lib/nova/tmp’ and on Debian ‘/var/lock/nova’ Defaults to $::nova::params::lock_path

verbose

(optional) Set log output to verbose output. Defaults to false

periodic_interval

(optional) Seconds between running periodic tasks. Defaults to ‘60’

report_interval

(optional) Interval at which nodes report to data store.

Defaults to '10'
monitoring_notifications

(optional) Whether or not to send system usage data notifications out on the message queue. Only valid for stable/essex. Defaults to false

use_syslog

(optional) Use syslog for logging Defaults to false

log_facility

(optional) Syslog facility to receive log lines. Defaults to ‘LOG_USER’

use_ssl

(optional) Enable SSL on the API server Defaults to false, not set

enabled_ssl_apis

(optional) List of APIs to SSL enable Defaults to [] Possible values : ‘ec2’, ‘osapi_compute’, ‘metadata’

cert_file

(optinal) Certificate file to use when starting API server securely Defaults to false, not set

key_file

(optional) Private key file to use when starting API server securely Defaults to false, not set

ca_file

(optional) CA certificate file to use to verify connecting clients Defaults to false, not set_

nova_user_id

(optional) Create the nova user with the specified gid. Changing to a new uid after specifying a different uid previously, or using this option after the nova account already exists will break the ownership of all files/dirs owned by nova. It is strongly encouraged not to use this option and instead create user before nova class or for network shares create netgroup into which you’ll put nova on all the nodes. If undef no user will be created and user creation will standardly happen in nova-common package. Defaults to undef.

nova_group_id

(optional) Create the nova user with the specified gid. Changing to a new uid after specifying a different uid previously, or using this option after the nova account already exists will break the ownership of all files/dirs owned by nova. It is strongly encouraged not to use this option and instead create group before nova class or for network shares create netgroup into which you’ll put nova on all the nodes. If undef no user or group will be created and creation will happen in nova-common package. Defaults to undef.

nova_public_key

(optional) Install public key in .ssh/authorized_keys for the ‘nova’ user. Expects a hash of the form { type => ‘key-type’, key => ‘key-data’ } where ‘key-type’ is one of (ssh-rsa, ssh-dsa, ssh-ecdsa) and ‘key-data’ is the actual key data (e.g, ‘AAAA…’).

nova_private_key

(optional) Install private key into .ssh/id_rsa (or appropriate equivalent for key type). Expects a hash of the form { type => ‘key-type’, key => ‘key-data’ }, where ‘key-type’ is one of (ssh-rsa, ssh-dsa, ssh-ecdsa) and ‘key-data’ is the contents of the private key file.

nova_shell

(optional) Set shell for ‘nova’ user to the specified value. Defaults to ‘/bin/false’.

mysql_module

(optional) Deprecated. Does nothing.

notification_driver

(optional) Driver or drivers to handle sending notifications. Value can be a string or a list. Defaults to []

notification_topics

(optional) AMQP topic used for OpenStack notifications Defaults to ‘notifications’

notify_api_faults

(optional) If set, send api.fault notifications on caught exceptions in the API service Defaults to false

notify_on_state_change

(optional) If set, send compute.instance.update notifications on instance state changes. Valid values are None for no notifications, “vm_state” for notifications on VM state changes, or “vm_and_task_state” for notifications on VM and task state changes. Defaults to undef

os_region_name

(optional) Sets the os_region_name flag. For environments with more than one endpoint per service, this is required to make things such as cinder volume attach work. If you don’t set this and you have multiple endpoints, you will get AmbiguousEndpoint exceptions in the nova API service. Defaults to undef

Parameters:

  • ensure_package (Any) (defaults to: 'present')
  • database_connection (Any) (defaults to: false)
  • slave_connection (Any) (defaults to: false)
  • database_idle_timeout (Any) (defaults to: 3600)
  • rpc_backend (Any) (defaults to: 'rabbit')
  • image_service (Any) (defaults to: 'nova.image.glance.GlanceImageService')
  • glance_api_servers (Any) (defaults to: 'localhost:9292')
  • memcached_servers (Any) (defaults to: false)
  • rabbit_host (Any) (defaults to: 'localhost')
  • rabbit_hosts (Any) (defaults to: false)
  • rabbit_password (Any) (defaults to: 'guest')
  • rabbit_port (Any) (defaults to: '5672')
  • rabbit_userid (Any) (defaults to: 'guest')
  • rabbit_virtual_host (Any) (defaults to: '/')
  • rabbit_use_ssl (Any) (defaults to: false)
  • rabbit_ha_queues (Any) (defaults to: undef)
  • kombu_ssl_ca_certs (Any) (defaults to: undef)
  • kombu_ssl_certfile (Any) (defaults to: undef)
  • kombu_ssl_keyfile (Any) (defaults to: undef)
  • kombu_ssl_version (Any) (defaults to: 'TLSv1')
  • amqp_durable_queues (Any) (defaults to: false)
  • qpid_hostname (Any) (defaults to: 'localhost')
  • qpid_port (Any) (defaults to: '5672')
  • qpid_username (Any) (defaults to: 'guest')
  • qpid_password (Any) (defaults to: 'guest')
  • qpid_sasl_mechanisms (Any) (defaults to: false)
  • qpid_heartbeat (Any) (defaults to: 60)
  • qpid_protocol (Any) (defaults to: 'tcp')
  • qpid_tcp_nodelay (Any) (defaults to: true)
  • auth_strategy (Any) (defaults to: 'keystone')
  • service_down_time (Any) (defaults to: 60)
  • log_dir (Any) (defaults to: '/var/log/nova')
  • state_path (Any) (defaults to: '/var/lib/nova')
  • lock_path (Any) (defaults to: $::nova::params::lock_path)
  • verbose (Any) (defaults to: false)
  • debug (Any) (defaults to: false)
  • periodic_interval (Any) (defaults to: '60')
  • report_interval (Any) (defaults to: '10')
  • rootwrap_config (Any) (defaults to: '/etc/nova/rootwrap.conf')
  • use_ssl (Any) (defaults to: false)
  • enabled_ssl_apis (Any) (defaults to: ['ec2', 'metadata', 'osapi_compute'])
  • ca_file (Any) (defaults to: false)
  • cert_file (Any) (defaults to: false)
  • key_file (Any) (defaults to: false)
  • nova_user_id (Any) (defaults to: undef)
  • nova_group_id (Any) (defaults to: undef)
  • nova_public_key (Any) (defaults to: undef)
  • nova_private_key (Any) (defaults to: undef)
  • nova_shell (Any) (defaults to: '/bin/false')
  • monitoring_notifications (Any) (defaults to: false)
  • use_syslog (Any) (defaults to: false)
  • log_facility (Any) (defaults to: 'LOG_USER')
  • install_utilities (Any) (defaults to: true)
  • notification_driver (Any) (defaults to: [])
  • notification_topics (Any) (defaults to: 'notifications')
  • notify_api_faults (Any) (defaults to: false)
  • notify_on_state_change (Any) (defaults to: undef)
  • mysql_module (Any) (defaults to: undef)
  • nova_cluster_id (Any) (defaults to: undef)
  • sql_connection (Any) (defaults to: false)
  • sql_idle_timeout (Any) (defaults to: false)
  • logdir (Any) (defaults to: false)
  • os_region_name (Any) (defaults to: undef)


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# File 'manifests/init.pp', line 273

class nova(
  $ensure_package           = 'present',
  $database_connection      = false,
  $slave_connection         = false,
  $database_idle_timeout    = 3600,
  $rpc_backend              = 'rabbit',
  $image_service            = 'nova.image.glance.GlanceImageService',
  # these glance params should be optional
  # this should probably just be configured as a glance client
  $glance_api_servers       = 'localhost:9292',
  $memcached_servers        = false,
  $rabbit_host              = 'localhost',
  $rabbit_hosts             = false,
  $rabbit_password          = 'guest',
  $rabbit_port              = '5672',
  $rabbit_userid            = 'guest',
  $rabbit_virtual_host      = '/',
  $rabbit_use_ssl           = false,
  $rabbit_ha_queues         = undef,
  $kombu_ssl_ca_certs       = undef,
  $kombu_ssl_certfile       = undef,
  $kombu_ssl_keyfile        = undef,
  $kombu_ssl_version        = 'TLSv1',
  $amqp_durable_queues      = false,
  $qpid_hostname            = 'localhost',
  $qpid_port                = '5672',
  $qpid_username            = 'guest',
  $qpid_password            = 'guest',
  $qpid_sasl_mechanisms     = false,
  $qpid_heartbeat           = 60,
  $qpid_protocol            = 'tcp',
  $qpid_tcp_nodelay         = true,
  $auth_strategy            = 'keystone',
  $service_down_time        = 60,
  $log_dir                  = '/var/log/nova',
  $state_path               = '/var/lib/nova',
  $lock_path                = $::nova::params::lock_path,
  $verbose                  = false,
  $debug                    = false,
  $periodic_interval        = '60',
  $report_interval          = '10',
  $rootwrap_config          = '/etc/nova/rootwrap.conf',
  $use_ssl                  = false,
  $enabled_ssl_apis         = ['ec2', 'metadata', 'osapi_compute'],
  $ca_file                  = false,
  $cert_file                = false,
  $key_file                 = false,
  $nova_user_id             = undef,
  $nova_group_id            = undef,
  $nova_public_key          = undef,
  $nova_private_key         = undef,
  $nova_shell               = '/bin/false',
  # deprecated in folsom
  #$root_helper = $::nova::params::root_helper,
  $monitoring_notifications = false,
  $use_syslog               = false,
  $log_facility             = 'LOG_USER',
  $install_utilities        = true,
  $notification_driver      = [],
  $notification_topics      = 'notifications',
  $notify_api_faults        = false,
  $notify_on_state_change   = undef,
  # DEPRECATED PARAMETERS
  $mysql_module             = undef,
  # this is how to query all resources from our clutser
  $nova_cluster_id          = undef,
  $sql_connection           = false,
  $sql_idle_timeout         = false,
  $logdir                   = false,
  $os_region_name           = undef,
) inherits nova::params {

  # maintain backward compatibility
  include nova::db

  if $mysql_module {
    warning('The mysql_module parameter is deprecated. The latest 2.x mysql module will be used.')
  }

  if $nova_cluster_id {
    warning('The nova_cluster_id parameter is deprecated and has no effect.')
  }

  validate_array($enabled_ssl_apis)
  if empty($enabled_ssl_apis) and $use_ssl {
      warning('enabled_ssl_apis is empty but use_ssl is set to true')
  }

  if $use_ssl {
    if !$cert_file {
      fail('The cert_file parameter is required when use_ssl is set to true')
    }
    if !$key_file {
      fail('The key_file parameter is required when use_ssl is set to true')
    }
  }

  if $kombu_ssl_ca_certs and !$rabbit_use_ssl {
    fail('The kombu_ssl_ca_certs parameter requires rabbit_use_ssl to be set to true')
  }
  if $kombu_ssl_certfile and !$rabbit_use_ssl {
    fail('The kombu_ssl_certfile parameter requires rabbit_use_ssl to be set to true')
  }
  if $kombu_ssl_keyfile and !$rabbit_use_ssl {
    fail('The kombu_ssl_keyfile parameter requires rabbit_use_ssl to be set to true')
  }
  if ($kombu_ssl_certfile and !$kombu_ssl_keyfile) or ($kombu_ssl_keyfile and !$kombu_ssl_certfile) {
    fail('The kombu_ssl_certfile and kombu_ssl_keyfile parameters must be used together')
  }

  if $nova_group_id {
    warning('The nova_group_id will be deprecated, please create group manually')
    group { 'nova':
      ensure  => present,
      system  => true,
      gid     => $nova_group_id,
      before  => Package['nova-common'],
    }
  }
  if $nova_user_id {
    warning('The nova_user_id will be deprecated, please create user manually')
    user { 'nova':
      ensure     => present,
      system     => true,
      groups     => 'nova',
      home       => '/var/lib/nova',
      managehome => false,
      shell      => $nova_shell,
      uid        => $nova_user_id,
      gid        => $nova_group_id,
      before     => Package['nova-common'],
      require    => Group['nova'],
    }
  }

  if $nova_public_key or $nova_private_key {
    file { '/var/lib/nova/.ssh':
      ensure  => directory,
      mode    => '0700',
      owner   => 'nova',
      group   => 'nova',
      require => Package['nova-common'],
    }

    if $nova_public_key {
      if ! $nova_public_key[key] or ! $nova_public_key['type'] {
        fail('You must provide both a key type and key data.')
      }

      ssh_authorized_key { 'nova-migration-public-key':
        ensure  => present,
        key     => $nova_public_key[key],
        type    => $nova_public_key['type'],
        user    => 'nova',
        require => File['/var/lib/nova/.ssh'],
      }
    }

    if $nova_private_key {
      if ! $nova_private_key[key] or ! $nova_private_key['type'] {
        fail('You must provide both a key type and key data.')
      }

      $nova_private_key_file = $nova_private_key['type'] ? {
        'ssh-rsa'   => '/var/lib/nova/.ssh/id_rsa',
        'ssh-dsa'   => '/var/lib/nova/.ssh/id_dsa',
        'ssh-ecdsa' => '/var/lib/nova/.ssh/id_ecdsa',
        default     => undef
      }

      if ! $nova_private_key_file {
        fail("Unable to determine name of private key file.  Type specified was '${nova_private_key['type']}' but should be one of: ssh-rsa, ssh-dsa, ssh-ecdsa.")
      }

      file { $nova_private_key_file:
        content => $nova_private_key[key],
        mode    => '0600',
        owner   => 'nova',
        group   => 'nova',
        require => [ File['/var/lib/nova/.ssh'], Package['nova-common'] ],
      }
    }
  }


  # all nova_config resources should be applied
  # after the nova common package
  # before the file resource for nova.conf is managed
  # and before the post config resource
  Package['nova-common'] -> Nova_config<| |> -> File['/etc/nova/nova.conf']
  Nova_config<| |> ~> Exec['post-nova_config']

  # TODO - see if these packages can be removed
  # they should be handled as package deps by the OS
  package { 'python':
    ensure => present,
  }
  package { 'python-greenlet':
    ensure  => present,
    require => Package['python'],
  }

  if $install_utilities {
    class { 'nova::utilities': }
  }

  # this anchor is used to simplify the graph between nova components by
  # allowing a resource to serve as a point where the configuration of nova begins
  anchor { 'nova-start': }

  package { 'python-nova':
    ensure  => $ensure_package,
    require => Package['python-greenlet'],
    tag     => ['openstack', 'nova'],
  }

  package { 'nova-common':
    ensure  => $ensure_package,
    name    => $::nova::params::common_package_name,
    require => [Package['python-nova'], Anchor['nova-start']],
    tag     => ['openstack', 'nova'],
  }

  file { '/etc/nova/nova.conf':
    mode    => '0640',
    owner   => 'nova',
    group   => 'nova',
    require => Package['nova-common'],
  }

  # used by debian/ubuntu in nova::network_bridge to refresh
  # interfaces based on /etc/network/interfaces
  exec { 'networking-refresh':
    command     => '/sbin/ifdown -a ; /sbin/ifup -a',
    refreshonly => true,
  }

  nova_config { 'DEFAULT/image_service': value => $image_service }

  if $image_service == 'nova.image.glance.GlanceImageService' {
    if $glance_api_servers {
      nova_config { 'glance/api_servers': value => $glance_api_servers }
    }
  }

  nova_config { 'DEFAULT/auth_strategy': value => $auth_strategy }

  if $memcached_servers {
    nova_config { 'DEFAULT/memcached_servers': value  => join($memcached_servers, ',') }
  } else {
    nova_config { 'DEFAULT/memcached_servers': ensure => absent }
  }

  # we keep "nova.openstack.common.rpc.impl_kombu" for backward compatibility
  # but since Icehouse, "rabbit" is enough.
  if $rpc_backend == 'nova.openstack.common.rpc.impl_kombu' or $rpc_backend == 'rabbit' {
    # I may want to support exporting and collecting these
    nova_config {
      'DEFAULT/rabbit_password':     value => $rabbit_password, secret => true;
      'DEFAULT/rabbit_userid':       value => $rabbit_userid;
      'DEFAULT/rabbit_virtual_host': value => $rabbit_virtual_host;
      'DEFAULT/rabbit_use_ssl':      value => $rabbit_use_ssl;
      'DEFAULT/amqp_durable_queues': value => $amqp_durable_queues;
    }

    if $rabbit_use_ssl {

      if $kombu_ssl_ca_certs {
        nova_config { 'DEFAULT/kombu_ssl_ca_certs': value => $kombu_ssl_ca_certs; }
      } else {
        nova_config { 'DEFAULT/kombu_ssl_ca_certs': ensure => absent; }
      }

      if $kombu_ssl_certfile or $kombu_ssl_keyfile {
        nova_config {
          'DEFAULT/kombu_ssl_certfile': value => $kombu_ssl_certfile;
          'DEFAULT/kombu_ssl_keyfile':  value => $kombu_ssl_keyfile;
        }
      } else {
        nova_config {
          'DEFAULT/kombu_ssl_certfile': ensure => absent;
          'DEFAULT/kombu_ssl_keyfile':  ensure => absent;
        }
      }

      if $kombu_ssl_version {
        nova_config { 'DEFAULT/kombu_ssl_version':  value => $kombu_ssl_version; }
      } else {
        nova_config { 'DEFAULT/kombu_ssl_version':  ensure => absent; }
      }

    } else {
      nova_config {
        'DEFAULT/kombu_ssl_ca_certs': ensure => absent;
        'DEFAULT/kombu_ssl_certfile': ensure => absent;
        'DEFAULT/kombu_ssl_keyfile':  ensure => absent;
        'DEFAULT/kombu_ssl_version':  ensure => absent;
      }
    }

    if $rabbit_hosts {
      nova_config { 'DEFAULT/rabbit_hosts':     value => join($rabbit_hosts, ',') }
    } else {
      nova_config { 'DEFAULT/rabbit_host':      value => $rabbit_host }
      nova_config { 'DEFAULT/rabbit_port':      value => $rabbit_port }
      nova_config { 'DEFAULT/rabbit_hosts':     value => "${rabbit_host}:${rabbit_port}" }
    }
    if $rabbit_ha_queues == undef {
      if $rabbit_hosts {
        nova_config { 'DEFAULT/rabbit_ha_queues': value => true }
      } else {
        nova_config { 'DEFAULT/rabbit_ha_queues': value => false }
      }
    } else {
      nova_config { 'DEFAULT/rabbit_ha_queues': value => $rabbit_ha_queues }
    }
  }

  # we keep "nova.openstack.common.rpc.impl_qpid" for backward compatibility
  # but since Icehouse, "qpid" is enough.
  if $rpc_backend == 'nova.openstack.common.rpc.impl_qpid' or $rpc_backend == 'qpid' {
    nova_config {
      'DEFAULT/qpid_hostname':               value => $qpid_hostname;
      'DEFAULT/qpid_port':                   value => $qpid_port;
      'DEFAULT/qpid_username':               value => $qpid_username;
      'DEFAULT/qpid_password':               value => $qpid_password, secret => true;
      'DEFAULT/qpid_heartbeat':              value => $qpid_heartbeat;
      'DEFAULT/qpid_protocol':               value => $qpid_protocol;
      'DEFAULT/qpid_tcp_nodelay':            value => $qpid_tcp_nodelay;
    }
    if is_array($qpid_sasl_mechanisms) {
      nova_config {
        'DEFAULT/qpid_sasl_mechanisms': value => join($qpid_sasl_mechanisms, ' ');
      }
    }
    elsif $qpid_sasl_mechanisms {
      nova_config {
        'DEFAULT/qpid_sasl_mechanisms': value => $qpid_sasl_mechanisms;
      }
    }
    else {
      nova_config {
        'DEFAULT/qpid_sasl_mechanisms': ensure => absent;
      }
    }
  }

  # SSL Options
  if $use_ssl {
    nova_config {
      'DEFAULT/enabled_ssl_apis' : value => join($enabled_ssl_apis, ',');
      'DEFAULT/ssl_cert_file' :    value => $cert_file;
      'DEFAULT/ssl_key_file' :     value => $key_file;
    }
    if $ca_file {
      nova_config { 'DEFAULT/ssl_ca_file' :
        value => $ca_file,
      }
    } else {
      nova_config { 'DEFAULT/ssl_ca_file' :
        ensure => absent,
      }
    }
  } else {
    nova_config {
      'DEFAULT/enabled_ssl_apis' : ensure => absent;
      'DEFAULT/ssl_cert_file' :    ensure => absent;
      'DEFAULT/ssl_key_file' :     ensure => absent;
      'DEFAULT/ssl_ca_file' :      ensure => absent;
    }
  }

  if $logdir {
    warning('The logdir parameter is deprecated, use log_dir instead.')
    $log_dir_real = $logdir
  } else {
    $log_dir_real = $log_dir
  }

  if $log_dir_real {
    file { $log_dir_real:
      ensure  => directory,
      mode    => '0750',
      owner   => 'nova',
      group   => $::nova::params::nova_log_group,
      require => Package['nova-common'],
    }
    nova_config { 'DEFAULT/log_dir': value => $log_dir_real;}
  } else {
    nova_config { 'DEFAULT/log_dir': ensure => absent;}
  }

  if $monitoring_notifications {
    warning('The monitoring_notifications parameter is deprecated, use notification_driver instead.')
    $notification_driver_real = 'nova.openstack.common.notifier.rpc_notifier'
  } else {
    $notification_driver_real = is_string($notification_driver) ? {
      true    => $notification_driver,
      default => join($notification_driver, ',')
    }
  }

  nova_config {
    'DEFAULT/verbose':             value => $verbose;
    'DEFAULT/debug':               value => $debug;
    'DEFAULT/rpc_backend':         value => $rpc_backend;
    'DEFAULT/notification_driver': value => $notification_driver_real;
    'DEFAULT/notification_topics': value => $notification_topics;
    'DEFAULT/notify_api_faults':   value => $notify_api_faults;
    # Following may need to be broken out to different nova services
    'DEFAULT/state_path':          value => $state_path;
    'DEFAULT/lock_path':           value => $lock_path;
    'DEFAULT/service_down_time':   value => $service_down_time;
    'DEFAULT/rootwrap_config':     value => $rootwrap_config;
    'DEFAULT/report_interval':     value => $report_interval;
  }

  if $notify_on_state_change and $notify_on_state_change in ['vm_state', 'vm_and_task_state'] {
    nova_config {
      'DEFAULT/notify_on_state_change': value => $notify_on_state_change;
    }
  } else {
    nova_config { 'DEFAULT/notify_on_state_change': ensure => absent; }
  }

  # Syslog configuration
  if $use_syslog {
    nova_config {
      'DEFAULT/use_syslog':           value => true;
      'DEFAULT/syslog_log_facility':  value => $log_facility;
    }
  } else {
    nova_config {
      'DEFAULT/use_syslog':           value => false;
    }
  }

  if $os_region_name {
    nova_config {
      'DEFAULT/os_region_name':       value => $os_region_name;
    }
  }
  else {
    nova_config {
      'DEFAULT/os_region_name':       ensure => absent;
    }
  }

  exec { 'post-nova_config':
    command     => '/bin/echo "Nova config has changed"',
    refreshonly => true,
  }

}