Make service restarts optional

Useful if you prefer to not have your mysql service touched after it is
running.

manifests/config.pp

@@ -46,14 +46,18 @@ class mysql::config(
   $ssl_key           = $mysql::params::ssl_key,
   $log_error         = $mysql::params::log_error,
   $default_engine    = 'UNSET',
-  $root_group        = $mysql::params::root_group
+  $root_group        = $mysql::params::root_group,
+  $restart           = $mysql::params::restart
 ) inherits mysql::params {
 
   File {
     owner  => 'root',
     group  => $root_group,
     mode   => '0400',
-    notify => Exec['mysqld-restart'],
+    notify    => $restart ? {
+      true => Exec['mysqld-restart'],
+      false => undef,
+    },
   }
 
   if $ssl and $ssl_ca == undef {
@@ -90,7 +94,10 @@ class mysql::config(
       logoutput => true,
       unless    => "mysqladmin -u root -p'${root_password}' status > /dev/null",
       path      => '/usr/local/sbin:/usr/bin:/usr/local/bin',
-      notify    => Exec['mysqld-restart'],
+      notify    => $restart ? {
+        true => Exec['mysqld-restart'],
+        false => undef,
+      },
       require   => File['/etc/mysql/conf.d'],
     }
 

manifests/params.pp

@@ -16,6 +16,7 @@ class mysql::params {
   $port                = 3306
   $etc_root_password   = false
   $ssl                 = false
+  $restart             = true
 
   case $::operatingsystem {
     'Ubuntu': {