diff --git a/manifests/db.pp b/manifests/db.pp
index 92c805f2..61ef3032 100644
--- a/manifests/db.pp
+++ b/manifests/db.pp
@@ -10,37 +10,37 @@
 #
 # [*database_idle_timeout*]
 #   Timeout when db connections should be reaped.
-#   (Optional) Defaults to 3600.
+#   (Optional) Defaults to $::os_service_default
 #
 # [*database_max_retries*]
 #   Maximum db connection retries during startup.
 #   Setting -1 implies an infinite retry count.
-#   (Optional) Defaults to 10.
+#   (Optional) Defaults to $::os_service_default
 #
 # [*database_retry_interval*]
 #   Interval between retries of opening a sql connection.
-#   (Optional) Defaults to 10.
+#   (Optional) Defaults to $::os_service_default
 #
 # [*database_min_pool_size*]
 #   Minimum number of SQL connections to keep open in a pool.
-#   (Optional) Defaults to 1.
+#   (Optional) Defaults to $::os_service_default
 #
 # [*database_max_pool_size*]
 #   Maximum number of SQL connections to keep open in a pool.
-#   (Optional) Defaults to 10.
+#   (Optional) Defaults to $::os_service_default
 #
 # [*database_max_overflow*]
 #   If set, use this value for max_overflow with sqlalchemy.
-#   (Optional) Defaults to 20.
+#   (Optional) Defaults to $::os_service_default
 #
 class ironic::db (
   $database_connection     = 'sqlite:////var/lib/ironic/ovs.sqlite',
-  $database_idle_timeout   = 3600,
-  $database_max_retries    = 10,
-  $database_retry_interval = 10,
-  $database_min_pool_size  = 1,
-  $database_max_pool_size  = 10,
-  $database_max_overflow   = 20,
+  $database_idle_timeout   = $::os_service_default,
+  $database_max_retries    = $::os_service_default,
+  $database_retry_interval = $::os_service_default,
+  $database_min_pool_size  = $::os_service_default,
+  $database_max_pool_size  = $::os_service_default,
+  $database_max_overflow   = $::os_service_default,
 ) {
 
   # NOTE(spredzy): In order to keep backward compatibility we rely on the pick function
@@ -56,42 +56,40 @@ class ironic::db (
   validate_re($database_connection_real,
     '(sqlite|mysql|postgresql):\/\/(\S+:\S+@\S+\/\S+)?')
 
-  if $database_connection_real {
-    case $database_connection_real {
-      /^mysql:\/\//: {
-        $backend_package = false
-        require 'mysql::bindings'
-        require 'mysql::bindings::python'
-      }
-      /^postgresql:\/\//: {
-        $backend_package = false
-        require 'postgresql::lib::python'
-      }
-      /^sqlite:\/\//: {
-        $backend_package = $::ironic::params::sqlite_package_name
-      }
-      default: {
-        fail('Unsupported backend configured')
-      }
+  case $database_connection_real {
+    /^mysql:\/\//: {
+      $backend_package = false
+      require 'mysql::bindings'
+      require 'mysql::bindings::python'
     }
-
-    if $backend_package and !defined(Package[$backend_package]) {
-      package {'ironic-backend-package':
-        ensure => present,
-        name   => $backend_package,
-        tag    => 'openstack',
-      }
+    /^postgresql:\/\//: {
+      $backend_package = false
+      require 'postgresql::lib::python'
     }
-
-    ironic_config {
-      'database/connection':     value => $database_connection_real, secret => true;
-      'database/idle_timeout':   value => $database_idle_timeout_real;
-      'database/max_retries':    value => $database_max_retries_real;
-      'database/retry_interval': value => $database_retry_interval_real;
-      'database/min_pool_size':  value => $database_min_pool_size_real;
-      'database/max_pool_size':  value => $database_max_pool_size_real;
-      'database/max_overflow':   value => $database_max_overflow_real;
+    /^sqlite:\/\//: {
+      $backend_package = $::ironic::params::sqlite_package_name
+    }
+    default: {
+      fail('Unsupported backend configured')
     }
   }
 
+  if $backend_package and !defined(Package[$backend_package]) {
+    package {'ironic-backend-package':
+      ensure => present,
+      name   => $backend_package,
+      tag    => 'openstack',
+    }
+  }
+
+  ironic_config {
+    'database/connection':     value => $database_connection_real, secret => true;
+    'database/idle_timeout':   value => $database_idle_timeout_real;
+    'database/max_retries':    value => $database_max_retries_real;
+    'database/retry_interval': value => $database_retry_interval_real;
+    'database/min_pool_size':  value => $database_min_pool_size_real;
+    'database/max_pool_size':  value => $database_max_pool_size_real;
+    'database/max_overflow':   value => $database_max_overflow_real;
+  }
+
 }
diff --git a/manifests/logging.pp b/manifests/logging.pp
index f2c0eb58..281e1dd4 100644
--- a/manifests/logging.pp
+++ b/manifests/logging.pp
@@ -6,23 +6,23 @@
 #
 #  [*verbose*]
 #    (Optional) Should the daemons log verbose messages
-#    Defaults to 'false'
+#    Defaults to $::os_service_default
 #
 #  [*debug*]
 #    (Optional) Should the daemons log debug messages
-#    Defaults to 'false'
+#    Defaults to $::os_service_default
 #
 #  [*use_syslog*]
 #    (Optional) Use syslog for logging.
-#    Defaults to 'false'
+#    Defaults to $::os_service_default
 #
 #  [*use_stderr*]
 #    (optional) Use stderr for logging
-#    Defaults to 'true'
+#    Defaults to $::os_service_default
 #
 #  [*log_facility*]
 #    (Optional) Syslog facility to receive log lines.
-#    Defaults to 'LOG_USER'
+#    Defaults to $::os_service_default
 #
 #  [*log_dir*]
 #    (optional) Directory where logs should be stored.
@@ -31,34 +31,34 @@
 #
 #  [*logging_context_format_string*]
 #    (optional) Format string to use for log messages with context.
-#    Defaults to undef.
+#    Defaults to $::os_service_default
 #    Example: '%(asctime)s.%(msecs)03d %(process)d %(levelname)s %(name)s\
 #              [%(request_id)s %(user_identity)s] %(instance)s%(message)s'
 #
 #  [*logging_default_format_string*]
 #    (optional) Format string to use for log messages without context.
-#    Defaults to undef.
+#    Defaults to$::os_service_default
 #    Example: '%(asctime)s.%(msecs)03d %(process)d %(levelname)s %(name)s\
 #              [-] %(instance)s%(message)s'
 #
 #  [*logging_debug_format_suffix*]
 #    (optional) Formatted data to append to log format when level is DEBUG.
-#    Defaults to undef.
+#    Defaults to $::os_service_default
 #    Example: '%(funcName)s %(pathname)s:%(lineno)d'
 #
 #  [*logging_exception_prefix*]
 #    (optional) Prefix each line of exception output with this format.
-#    Defaults to undef.
+#    Defaults to $::os_service_default
 #    Example: '%(asctime)s.%(msecs)03d %(process)d TRACE %(name)s %(instance)s'
 #
 #  [*log_config_append*]
 #    The name of an additional logging configuration file.
-#    Defaults to undef.
+#    Defaults to $::os_service_default
 #    See https://docs.python.org/2/howto/logging.html
 #
 #  [*default_log_levels*]
 #    (optional) Hash of logger (keys) and level (values) pairs.
-#    Defaults to undef.
+#    Defaults to $::os_service_default
 #    Example:
 #      { 'amqp' => 'WARN', 'amqplib' => 'WARN', 'boto' => 'WARN',
 #        'qpid' => 'WARN', 'sqlalchemy' => 'WARN', 'suds' => 'INFO',
@@ -67,47 +67,47 @@
 #
 #  [*publish_errors*]
 #    (optional) Publish error events (boolean value).
-#    Defaults to undef (false if unconfigured).
+#    Defaults to $::os_service_default
 #
 #  [*fatal_deprecations*]
 #    (optional) Make deprecations fatal (boolean value)
-#    Defaults to undef (false if unconfigured).
+#    Defaults to $::os_service_default
 #
 #  [*instance_format*]
 #    (optional) If an instance is passed with the log message, format it
 #               like this (string value).
-#    Defaults to undef.
+#    Defaults to $::os_service_default
 #    Example: '[instance: %(uuid)s] '
 #
 #  [*instance_uuid_format*]
 #    (optional) If an instance UUID is passed with the log message, format
 #               it like this (string value).
-#    Defaults to undef.
+#    Defaults to $::os_service_default
 #    Example: instance_uuid_format='[instance: %(uuid)s] '
-
+#
 #  [*log_date_format*]
 #    (optional) Format string for %%(asctime)s in log records.
-#    Defaults to undef.
+#    Defaults to $::os_service_default
 #    Example: 'Y-%m-%d %H:%M:%S'
 
 class ironic::logging(
-  $use_syslog                    = false,
-  $use_stderr                    = true,
-  $log_facility                  = 'LOG_USER',
+  $use_syslog                    = $::os_service_default,
+  $use_stderr                    = $::os_service_default,
+  $log_facility                  = $::os_service_default,
   $log_dir                       = '/var/log/ironic',
-  $verbose                       = false,
-  $debug                         = false,
-  $logging_context_format_string = undef,
-  $logging_default_format_string = undef,
-  $logging_debug_format_suffix   = undef,
-  $logging_exception_prefix      = undef,
-  $log_config_append             = undef,
-  $default_log_levels            = undef,
-  $publish_errors                = undef,
-  $fatal_deprecations            = undef,
-  $instance_format               = undef,
-  $instance_uuid_format          = undef,
-  $log_date_format               = undef,
+  $verbose                       = $::os_service_default,
+  $debug                         = $::os_service_default,
+  $logging_context_format_string = $::os_service_default,
+  $logging_default_format_string = $::os_service_default,
+  $logging_debug_format_suffix   = $::os_service_default,
+  $logging_exception_prefix      = $::os_service_default,
+  $log_config_append             = $::os_service_default,
+  $default_log_levels            = $::os_service_default,
+  $publish_errors                = $::os_service_default,
+  $fatal_deprecations            = $::os_service_default,
+  $instance_format               = $::os_service_default,
+  $instance_uuid_format          = $::os_service_default,
+  $log_date_format               = $::os_service_default,
 ) {
 
   # NOTE(spredzy): In order to keep backward compatibility we rely on the pick function
@@ -119,139 +119,31 @@ class ironic::logging(
   $verbose_real  = pick($::ironic::verbose,$verbose)
   $debug_real = pick($::ironic::debug,$debug)
 
-  ironic_config {
-    'DEFAULT/debug'              : value => $debug_real;
-    'DEFAULT/verbose'            : value => $verbose_real;
-    'DEFAULT/use_stderr'         : value => $use_stderr_real;
-    'DEFAULT/use_syslog'         : value => $use_syslog_real;
-    'DEFAULT/log_dir'            : value => $log_dir_real;
-    'DEFAULT/syslog_log_facility': value => $log_facility_real;
+  if is_service_default($default_log_levels) {
+    $default_log_levels_real = $default_log_levels
+  } else {
+    $default_log_levels_real = join(sort(join_keys_to_values($default_log_levels, '=')), ',')
   }
 
-  if $logging_context_format_string {
-    ironic_config {
-      'DEFAULT/logging_context_format_string' :
-        value => $logging_context_format_string;
-      }
-    }
-  else {
-    ironic_config {
-      'DEFAULT/logging_context_format_string' : ensure => absent;
-      }
-    }
-
-  if $logging_default_format_string {
-    ironic_config {
-      'DEFAULT/logging_default_format_string' :
-        value => $logging_default_format_string;
-      }
-    }
-  else {
-    ironic_config {
-      'DEFAULT/logging_default_format_string' : ensure => absent;
-      }
-    }
-
-  if $logging_debug_format_suffix {
-    ironic_config {
-      'DEFAULT/logging_debug_format_suffix' :
-        value => $logging_debug_format_suffix;
-      }
-    }
-  else {
-    ironic_config {
-      'DEFAULT/logging_debug_format_suffix' : ensure => absent;
-      }
-    }
-
-  if $logging_exception_prefix {
-    ironic_config {
-      'DEFAULT/logging_exception_prefix' : value => $logging_exception_prefix;
-      }
-    }
-  else {
-    ironic_config {
-      'DEFAULT/logging_exception_prefix' : ensure => absent;
-      }
-    }
-
-  if $log_config_append {
-    ironic_config {
-      'DEFAULT/log_config_append' : value => $log_config_append;
-      }
-    }
-  else {
-    ironic_config {
-      'DEFAULT/log_config_append' : ensure => absent;
-      }
-    }
-
-  if $default_log_levels {
-    ironic_config {
-      'DEFAULT/default_log_levels' :
-        value => join(sort(join_keys_to_values($default_log_levels, '=')), ',');
-      }
-    }
-  else {
-    ironic_config {
-      'DEFAULT/default_log_levels' : ensure => absent;
-      }
-    }
-
-  if $publish_errors {
-    ironic_config {
-      'DEFAULT/publish_errors' : value => $publish_errors;
-      }
-    }
-  else {
-    ironic_config {
-      'DEFAULT/publish_errors' : ensure => absent;
-      }
-    }
-
-  if $fatal_deprecations {
-    ironic_config {
-      'DEFAULT/fatal_deprecations' : value => $fatal_deprecations;
-      }
-    }
-  else {
-    ironic_config {
-      'DEFAULT/fatal_deprecations' : ensure => absent;
-      }
-    }
-
-  if $instance_format {
-    ironic_config {
-      'DEFAULT/instance_format' : value => $instance_format;
-      }
-    }
-  else {
-    ironic_config {
-      'DEFAULT/instance_format' : ensure => absent;
-      }
-    }
-
-  if $instance_uuid_format {
-    ironic_config {
-      'DEFAULT/instance_uuid_format' : value => $instance_uuid_format;
-      }
-    }
-  else {
-    ironic_config {
-      'DEFAULT/instance_uuid_format' : ensure => absent;
-      }
-    }
-
-  if $log_date_format {
-    ironic_config {
-      'DEFAULT/log_date_format' : value => $log_date_format;
-      }
-    }
-  else {
-    ironic_config {
-      'DEFAULT/log_date_format' : ensure => absent;
-      }
-    }
+  ironic_config {
+    'DEFAULT/debug':                         value => $debug_real;
+    'DEFAULT/verbose':                       value => $verbose_real;
+    'DEFAULT/use_stderr':                    value => $use_stderr_real;
+    'DEFAULT/use_syslog':                    value => $use_syslog_real;
+    'DEFAULT/log_dir':                       value => $log_dir_real;
+    'DEFAULT/syslog_log_facility':           value => $log_facility_real;
+    'DEFAULT/logging_context_format_string': value => $logging_context_format_string;
+    'DEFAULT/logging_default_format_string': value => $logging_default_format_string;
+    'DEFAULT/logging_debug_format_suffix':   value => $logging_debug_format_suffix;
+    'DEFAULT/logging_exception_prefix':      value => $logging_exception_prefix;
+    'DEFAULT/log_config_append':             value => $log_config_append;
+    'DEFAULT/default_log_levels':            value => $default_log_levels_real;
+    'DEFAULT/publish_errors':                value => $publish_errors;
+    'DEFAULT/fatal_deprecations':            value => $fatal_deprecations;
+    'DEFAULT/instance_format':               value => $instance_format;
+    'DEFAULT/instance_uuid_format':          value => $instance_uuid_format;
+    'DEFAULT/log_date_format':               value => $log_date_format;
+  }
 
 
 }
diff --git a/spec/classes/inspector_db_sync_spec.rb b/spec/classes/inspector_db_sync_spec.rb
index cf71ccab..429ef3ec 100644
--- a/spec/classes/inspector_db_sync_spec.rb
+++ b/spec/classes/inspector_db_sync_spec.rb
@@ -18,11 +18,11 @@ describe 'ironic::db::inspector_sync' do
 
   context 'on a RedHat osfamily' do
     let :facts do
-      {
+      @default_facts.merge({
         :osfamily                 => 'RedHat',
         :operatingsystemrelease   => '7.0',
         :concat_basedir => '/var/lib/puppet/concat'
-      }
+      })
     end
 
     it_configures 'inspector-dbsync'
@@ -30,12 +30,12 @@ describe 'ironic::db::inspector_sync' do
 
   context 'on a Debian osfamily' do
     let :facts do
-      {
+      @default_facts.merge({
         :operatingsystemrelease => '7.8',
         :operatingsystem        => 'Debian',
         :osfamily               => 'Debian',
         :concat_basedir => '/var/lib/puppet/concat'
-      }
+      })
     end
 
     it_configures 'inspector-dbsync'
diff --git a/spec/classes/ironic_api_spec.rb b/spec/classes/ironic_api_spec.rb
index 726531ee..f7d56d38 100644
--- a/spec/classes/ironic_api_spec.rb
+++ b/spec/classes/ironic_api_spec.rb
@@ -127,7 +127,7 @@ describe 'ironic::api' do
 
   context 'on Debian platforms' do
     let :facts do
-      { :osfamily => 'Debian' }
+      @default_facts.merge({ :osfamily => 'Debian' })
     end
 
     let :platform_params do
@@ -140,7 +140,7 @@ describe 'ironic::api' do
 
   context 'on RedHat platforms' do
     let :facts do
-      { :osfamily => 'RedHat' }
+      @default_facts.merge({ :osfamily => 'RedHat' })
     end
 
     let :platform_params do
diff --git a/spec/classes/ironic_client_spec.rb b/spec/classes/ironic_client_spec.rb
index b4b4eb49..90ad7677 100644
--- a/spec/classes/ironic_client_spec.rb
+++ b/spec/classes/ironic_client_spec.rb
@@ -24,7 +24,7 @@ describe 'ironic::client' do
 
   context 'on Debian platforms' do
     let :facts do
-      { :osfamily => 'Debian' }
+       @default_facts.merge({ :osfamily => 'Debian' })
     end
 
     it { is_expected.to contain_class('ironic::client') }
@@ -32,7 +32,7 @@ describe 'ironic::client' do
 
   context 'on RedHat platforms' do
     let :facts do
-      { :osfamily => 'RedHat' }
+       @default_facts.merge({ :osfamily => 'RedHat' })
     end
 
     it { is_expected.to contain_class('ironic::client') }
diff --git a/spec/classes/ironic_conductor_spec.rb b/spec/classes/ironic_conductor_spec.rb
index f93bf487..86a20beb 100644
--- a/spec/classes/ironic_conductor_spec.rb
+++ b/spec/classes/ironic_conductor_spec.rb
@@ -80,7 +80,7 @@ describe 'ironic::conductor' do
 
   context 'on Debian platforms' do
     let :facts do
-      { :osfamily => 'Debian' }
+      @default_facts.merge({ :osfamily => 'Debian' })
     end
 
     let :platform_params do
@@ -93,7 +93,7 @@ describe 'ironic::conductor' do
 
   context 'on RedHat platforms' do
     let :facts do
-      { :osfamily => 'RedHat' }
+      @default_facts.merge({ :osfamily => 'RedHat' })
     end
 
     let :platform_params do
diff --git a/spec/classes/ironic_db_mysql_spec.rb b/spec/classes/ironic_db_mysql_spec.rb
index 803ce034..ad4237cd 100644
--- a/spec/classes/ironic_db_mysql_spec.rb
+++ b/spec/classes/ironic_db_mysql_spec.rb
@@ -31,12 +31,12 @@ describe 'ironic::db::mysql' do
   end
 
   let :facts do
-      { :osfamily => 'Debian' }
+      @default_facts.merge({ :osfamily => 'Debian' })
   end
 
   context 'on Debian platforms' do
     let :facts do
-      { :osfamily => 'Debian' }
+      @default_facts.merge({ :osfamily => 'Debian' })
     end
 
     it { is_expected.to contain_openstacklib__db__mysql('ironic').with(
@@ -49,7 +49,7 @@ describe 'ironic::db::mysql' do
 
   context 'on RedHat platforms' do
     let :facts do
-      { :osfamily => 'RedHat' }
+      @default_facts.merge({ :osfamily => 'RedHat' })
     end
 
     it { is_expected.to contain_openstacklib__db__mysql('ironic').with(
diff --git a/spec/classes/ironic_db_spec.rb b/spec/classes/ironic_db_spec.rb
index e152a7a2..904b6b5f 100644
--- a/spec/classes/ironic_db_spec.rb
+++ b/spec/classes/ironic_db_spec.rb
@@ -7,12 +7,12 @@ describe 'ironic::db' do
     context 'with default parameters' do
 
       it { is_expected.to contain_ironic_config('database/connection').with_value('sqlite:////var/lib/ironic/ovs.sqlite').with_secret(true) }
-      it { is_expected.to contain_ironic_config('database/idle_timeout').with_value('3600') }
-      it { is_expected.to contain_ironic_config('database/min_pool_size').with_value('1') }
-      it { is_expected.to contain_ironic_config('database/max_pool_size').with_value('10') }
-      it { is_expected.to contain_ironic_config('database/max_overflow').with_value('20') }
-      it { is_expected.to contain_ironic_config('database/max_retries').with_value('10') }
-      it { is_expected.to contain_ironic_config('database/retry_interval').with_value('10') }
+      it { is_expected.to contain_ironic_config('database/idle_timeout').with_value('<SERVICE DEFAULT>') }
+      it { is_expected.to contain_ironic_config('database/min_pool_size').with_value('<SERVICE DEFAULT>') }
+      it { is_expected.to contain_ironic_config('database/max_pool_size').with_value('<SERVICE DEFAULT>') }
+      it { is_expected.to contain_ironic_config('database/max_overflow').with_value('<SERVICE DEFAULT>') }
+      it { is_expected.to contain_ironic_config('database/max_retries').with_value('<SERVICE DEFAULT>') }
+      it { is_expected.to contain_ironic_config('database/retry_interval').with_value('<SERVICE DEFAULT>') }
 
     end
 
@@ -60,10 +60,10 @@ describe 'ironic::db' do
 
   context 'on Debian platforms' do
     let :facts do
-      { :osfamily => 'Debian',
+      @default_facts.merge({ :osfamily => 'Debian',
         :operatingsystem => 'Debian',
         :operatingsystemrelease => 'jessie',
-      }
+      })
     end
 
     it_configures 'ironic::db'
@@ -71,9 +71,9 @@ describe 'ironic::db' do
 
   context 'on Redhat platforms' do
     let :facts do
-      { :osfamily => 'RedHat',
+      @default_facts.merge({ :osfamily => 'RedHat',
         :operatingsystemrelease => '7.1',
-      }
+      })
     end
 
     it_configures 'ironic::db'
diff --git a/spec/classes/ironic_drivers_ipmi_spec.rb b/spec/classes/ironic_drivers_ipmi_spec.rb
index 315f9d51..345f7688 100644
--- a/spec/classes/ironic_drivers_ipmi_spec.rb
+++ b/spec/classes/ironic_drivers_ipmi_spec.rb
@@ -52,7 +52,7 @@ describe 'ironic::drivers::ipmi' do
 
   context 'on Debian platforms' do
     let :facts do
-      { :osfamily => 'Debian' }
+      @default_facts.merge({ :osfamily => 'Debian' })
     end
 
     it_configures 'ironic ipmi driver'
@@ -60,7 +60,7 @@ describe 'ironic::drivers::ipmi' do
 
   context 'on RedHat platforms' do
     let :facts do
-      { :osfamily => 'RedHat' }
+      @default_facts.merge({ :osfamily => 'RedHat' })
     end
 
     it_configures 'ironic ipmi driver'
diff --git a/spec/classes/ironic_drivers_pxe_spec.rb b/spec/classes/ironic_drivers_pxe_spec.rb
index 26c13a2c..f75d56db 100644
--- a/spec/classes/ironic_drivers_pxe_spec.rb
+++ b/spec/classes/ironic_drivers_pxe_spec.rb
@@ -87,7 +87,7 @@ describe 'ironic::drivers::pxe' do
 
   context 'on Debian platforms' do
     let :facts do
-      { :osfamily => 'Debian' }
+      @default_facts.merge({ :osfamily => 'Debian' })
     end
 
     it_configures 'ironic pxe driver'
@@ -95,7 +95,7 @@ describe 'ironic::drivers::pxe' do
 
   context 'on RedHat platforms' do
     let :facts do
-      { :osfamily => 'RedHat' }
+      @default_facts.merge({ :osfamily => 'RedHat' })
     end
 
     it_configures 'ironic pxe driver'
diff --git a/spec/classes/ironic_init_spec.rb b/spec/classes/ironic_init_spec.rb
index b3de4a5f..ce683a20 100644
--- a/spec/classes/ironic_init_spec.rb
+++ b/spec/classes/ironic_init_spec.rb
@@ -288,7 +288,7 @@ describe 'ironic' do
 
   context 'on Debian platforms' do
     let :facts do
-      { :osfamily => 'Debian' }
+      @default_facts.merge({ :osfamily => 'Debian' })
     end
 
     let :platform_params do
@@ -300,7 +300,7 @@ describe 'ironic' do
 
   context 'on RedHat platforms' do
     let :facts do
-      { :osfamily => 'RedHat' }
+      @default_facts.merge({ :osfamily => 'RedHat' })
     end
 
     let :platform_params do
diff --git a/spec/classes/ironic_inspector_spec.rb b/spec/classes/ironic_inspector_spec.rb
index ea8cb4cb..08d7feb2 100644
--- a/spec/classes/ironic_inspector_spec.rb
+++ b/spec/classes/ironic_inspector_spec.rb
@@ -164,7 +164,7 @@ describe 'ironic::inspector' do
 
   context 'on Debian platforms' do
     let :facts do
-      { :osfamily => 'Debian' }
+      @default_facts.merge({ :osfamily => 'Debian' })
     end
 
     let :platform_params do
@@ -177,7 +177,7 @@ describe 'ironic::inspector' do
 
   context 'on RedHat platforms' do
     let :facts do
-      { :osfamily => 'RedHat' }
+      @default_facts.merge({ :osfamily => 'RedHat' })
     end
 
     let :platform_params do
diff --git a/spec/classes/ironic_keystone_auth_spec.rb b/spec/classes/ironic_keystone_auth_spec.rb
index 83e62207..45e2f9a1 100644
--- a/spec/classes/ironic_keystone_auth_spec.rb
+++ b/spec/classes/ironic_keystone_auth_spec.rb
@@ -23,7 +23,7 @@ require 'spec_helper'
 describe 'ironic::keystone::auth' do
 
   let :facts do
-    { :osfamily => 'Debian' }
+    @default_facts.merge({ :osfamily => 'Debian' })
   end
 
   describe 'with default class parameters' do
diff --git a/spec/classes/ironic_logging_spec.rb b/spec/classes/ironic_logging_spec.rb
index 02c97538..9de79db8 100644
--- a/spec/classes/ironic_logging_spec.rb
+++ b/spec/classes/ironic_logging_spec.rb
@@ -15,7 +15,7 @@ describe 'ironic::logging' do
       :logging_exception_prefix => '%(asctime)s.%(msecs)03d %(process)d TRACE %(name)s %(instance)s',
       :log_config_append => '/etc/ironic/logging.conf',
       :publish_errors => true,
-      :default_log_levels => { 
+      :default_log_levels => {
         'amqp' => 'WARN', 'amqplib' => 'WARN', 'boto' => 'WARN',
         'qpid' => 'WARN', 'sqlalchemy' => 'WARN', 'suds' => 'INFO',
         'iso8601' => 'WARN',
@@ -57,11 +57,11 @@ describe 'ironic::logging' do
 
   shared_examples 'basic default logging settings' do
     it 'configures ironic logging settins with default values' do
-      is_expected.to contain_ironic_config('DEFAULT/use_syslog').with(:value => 'false')
-      is_expected.to contain_ironic_config('DEFAULT/use_stderr').with(:value => 'true')
+      is_expected.to contain_ironic_config('DEFAULT/use_syslog').with(:value => '<SERVICE DEFAULT>')
+      is_expected.to contain_ironic_config('DEFAULT/use_stderr').with(:value => '<SERVICE DEFAULT>')
       is_expected.to contain_ironic_config('DEFAULT/log_dir').with(:value => '/var/log/ironic')
-      is_expected.to contain_ironic_config('DEFAULT/verbose').with(:value => 'false')
-      is_expected.to contain_ironic_config('DEFAULT/debug').with(:value => 'false')
+      is_expected.to contain_ironic_config('DEFAULT/verbose').with(:value => '<SERVICE DEFAULT>')
+      is_expected.to contain_ironic_config('DEFAULT/debug').with(:value => '<SERVICE DEFAULT>')
     end
   end
 
@@ -120,13 +120,13 @@ describe 'ironic::logging' do
      :default_log_levels, :fatal_deprecations,
      :instance_format, :instance_uuid_format,
      :log_date_format, ].each { |param|
-        it { is_expected.to contain_ironic_config("DEFAULT/#{param}").with_ensure('absent') }
+        it { is_expected.to contain_ironic_config("DEFAULT/#{param}").with_value('<SERVICE DEFAULT>') }
       }
   end
 
   context 'on Debian platforms' do
     let :facts do
-      { :osfamily => 'Debian' }
+      @default_facts.merge({ :osfamily => 'Debian' })
     end
 
     it_configures 'ironic-logging'
@@ -134,7 +134,7 @@ describe 'ironic::logging' do
 
   context 'on RedHat platforms' do
     let :facts do
-      { :osfamily => 'RedHat' }
+      @default_facts.merge({ :osfamily => 'RedHat' })
     end
 
     it_configures 'ironic-logging'
diff --git a/spec/classes/ironic_policy_spec.rb b/spec/classes/ironic_policy_spec.rb
index 8e029ff2..7d5cba9d 100644
--- a/spec/classes/ironic_policy_spec.rb
+++ b/spec/classes/ironic_policy_spec.rb
@@ -25,7 +25,7 @@ describe 'ironic::policy' do
 
   context 'on Debian platforms' do
     let :facts do
-      { :osfamily => 'Debian' }
+       @default_facts.merge({ :osfamily => 'Debian' })
     end
 
     it_configures 'ironic policies'
@@ -33,7 +33,7 @@ describe 'ironic::policy' do
 
   context 'on RedHat platforms' do
     let :facts do
-      { :osfamily => 'RedHat' }
+       @default_facts.merge({ :osfamily => 'RedHat' })
     end
 
     it_configures 'ironic policies'
diff --git a/spec/spec_helper.rb b/spec/spec_helper.rb
index 3df4cede..9bc7bcf9 100644
--- a/spec/spec_helper.rb
+++ b/spec/spec_helper.rb
@@ -5,6 +5,9 @@ require 'webmock/rspec'
 RSpec.configure do |c|
   c.alias_it_should_behave_like_to :it_configures, 'configures'
   c.alias_it_should_behave_like_to :it_raises, 'raises'
+  c.before :each do
+    @default_facts = { :os_service_default => '<SERVICE DEFAULT>' }
+  end
 end
 
 at_exit { RSpec::Puppet::Coverage.report! }