1 files changed, 18 insertions, 8 deletions
diff --git a/plugins/puppet/type/mysql_user.rb b/plugins/puppet/type/mysql_user.rb
index d92b610..55d97b6 100644
--- a/plugins/puppet/type/mysql_user.rb
+++ b/plugins/puppet/type/mysql_user.rb
@@ -1,12 +1,22 @@
 # This has to be a separate type to enable collecting
 Puppet::Type.newtype(:mysql_user) do
-	@doc = "Manage a database user."
-	ensurable
-	newparam(:name) do
-		desc "The name of the user. This uses the 'username@hostname' form."
-	end
-	newproperty(:password_hash) do
-		desc "The password hash of the user. Use mysql_password() for creating such a hash."
-	end
+  @doc = "Manage a database user."
+  ensurable
+  newparam(:name) do
+    desc "The name of the user. This uses the 'username@hostname' form."
+
+    validate do |value|
+      if value.split('@').first.size > 16
+        raise ArgumentError,
+              "MySQL usernames are limited to a maximum of 16 characters"
+      else
+        super
+      end
+    end
+  end
+
+  newproperty(:password_hash) do
+    desc "The password hash of the user. Use mysql_password() for creating such a hash."
+  end
 end