diff --git a/manifests/base.pp b/manifests/base.pp
new file mode 100644
index 0000000..88df89f
--- /dev/null
+++ b/manifests/base.pp
@@ -0,0 +1,36 @@
+class mongodb::base(
+  $repository = $mongodb::params::repository,
+  $package = $mongodb::params::package
+) inherits mongodb::params {
+  if !defined(Package["python-software-properties"]) {
+    package { "python-software-properties":
+      ensure => installed,
+    }
+  }
+
+  exec { "10gen-apt-repo":
+    path => "/bin:/usr/bin",
+    command => "echo '${repository}' >> /etc/apt/sources.list",
+    unless => "cat /etc/apt/sources.list | grep 10gen",
+    require => Package["python-software-properties"],
+  }
+
+  exec { "10gen-apt-key":
+    path => "/bin:/usr/bin",
+    command => "apt-key adv --keyserver keyserver.ubuntu.com --recv 7F0CEB10",
+    unless => "apt-key list | grep 10gen",
+    require => Exec["10gen-apt-repo"],
+  }
+
+  exec { "update-apt":
+    path => "/bin:/usr/bin",
+    command => "apt-get update",
+    unless => "ls /usr/bin | grep mongo",
+    require => Exec["10gen-apt-key"],
+  }
+
+  package { $package:
+    ensure => installed,
+    require => Exec["update-apt"],
+  }
+}
diff --git a/manifests/init.pp b/manifests/init.pp
index a016426..4beae87 100644
--- a/manifests/init.pp
+++ b/manifests/init.pp
@@ -17,46 +17,12 @@
 #    ulimit_nofile => 20000,
 #  }
 #
+
 class mongodb(
   $replSet = $mongodb::params::replSet,
   $ulimit_nofile = $mongodb::params::ulimit_nofile,
-  $repository = $mongodb::params::repository,
-  $package = $mongodb::params::package,
   $enable = true
-) inherits mongodb::params {
-
-  if !defined(Package["python-software-properties"]) {
-    package { "python-software-properties":
-      ensure => installed,
-    }
-  }
-
-  exec { "10gen-apt-repo":
-    path => "/bin:/usr/bin",
-    command => "echo '${repository}' >> /etc/apt/sources.list",
-    unless => "cat /etc/apt/sources.list | grep 10gen",
-    require => Package["python-software-properties"],
-  }
-
-  exec { "10gen-apt-key":
-    path => "/bin:/usr/bin",
-    command => "apt-key adv --keyserver keyserver.ubuntu.com --recv 7F0CEB10",
-    unless => "apt-key list | grep 10gen",
-    require => Exec["10gen-apt-repo"],
-  }
-
-  exec { "update-apt":
-    path => "/bin:/usr/bin",
-    command => "apt-get update",
-    unless => "ls /usr/bin | grep mongo",
-    require => Exec["10gen-apt-key"],
-  }
-
-  package { $package:
-    ensure => installed,
-    require => Exec["update-apt"],
-  }
-
+) inherits mongodb::base {
   service { "mongodb":
     enable => $enable,
     ensure => "running",
@@ -70,5 +36,4 @@
     notify => Service["mongodb"],
     require => Package[$package],
   }
-
 }