Puppet: Use mariadb on RHEL/CentOS >= 7

refs #9453

.puppet/modules/mysql/manifests/init.pp

@@ -1,6 +1,6 @@
 # Class: mysql
 #
-#   This class installs the mysql server and client software.
+#   This class installs the MySQL server and client software on a RHEL or CentOS
 #
 # Parameters:
 #
@@ -16,21 +16,39 @@ class mysql {
 
   Exec { path => '/usr/bin' }
 
+  if versioncmp($::operatingsystemmajrelease, '7') >= 0 {
+    $client_package_name = 'mariadb'
+    $server_package_name = 'mariadb-server'
+    $server_service_name = 'mariadb'
+    $cnf                 = '/etc/my.cnf.d/server.cnf'
+    $log_error           = '/var/log/mariadb/mariadb.log'
+    $pid_file            = '/var/run/mariadb/mariadb.pid'
+  } else {
+    $client_package_name = 'mysql'
+    $server_package_name = 'mysql-server'
+    $server_service_name = 'mysqld'
+    $cnf                 = '/etc/my.cnf'
+    $log_error           = '/var/log/mysqld.log'
+    $pid_file            = '/var/run/mysqld/mysqld.pid'
+  }
+
   package { [
-    'mysql', 'mysql-server'
+    $client_package_name, $server_package_name,
   ]:
       ensure => latest,
   }
 
-  service { 'mysqld':
-    ensure  => running,
+  service { $server_service_name:
+    alias   => 'mysqld',
     enable  => true,
-    require => Package['mysql-server']
+    ensure  => running,
+    require => Package[$server_package_name],
   }
 
-  file { '/etc/my.cnf':
+  file { $cnf:
     content => template('mysql/my.cnf.erb'),
-    require => Package['mysql-server'],
-    notify  => Service['mysqld']
+    notify  => Service['mysqld'],
+    recurse => true,
+    require => Package[$server_package_name],
   }
 }

.puppet/modules/mysql/templates/my.cnf.erb

@@ -104,8 +104,8 @@ innodb_file_per_table
 innodb_log_file_size = 64M
 
 [mysqld_safe]
-log-error=/var/log/mysqld.log
-pid-file=/var/run/mysqld/mysqld.pid
+log-error=<%= @log_error %>
+pid-file=<%= @pid_file %>
 
 # Increase the amount of open files allowed per process. Warning: Make
 # sure you have set the global system limit high enough! The high value