diff --git a/apt/manifests/init.pp b/apt/manifests/init.pp
index 07754d7..1187648 100644
--- a/apt/manifests/init.pp
+++ b/apt/manifests/init.pp
@@ -16,6 +16,40 @@ class apt {
 }
 
 
+# Configure /etc/apt/sources.list
+#
+# === Global variables
+#
+#   $apt_archive_url:
+#       Base URL of archive repository. Defaults to http://archive.ubuntu.com/ubuntu/.
+#   $apt_security_url:
+#       Base URL of security repository. Defaults to http://security.ubuntu.com/ubuntu/.
+#
+class apt::sources {
+
+    tag("bootstrap")
+
+    include apt
+
+    if !$apt_archive_url {
+        $apt_archive_url = "http://archive.ubuntu.com/ubuntu/"
+    }
+    if !$apt_security_url {
+        $apt_security_url = "http://security.ubuntu.com/ubuntu/"
+    }
+
+    file { "/etc/apt/sources.list":
+        ensure  => present,
+        mode    => 0644,
+        owner   => root,
+        group   => root,
+        content => template("apt/sources.list.erb"),
+        notify  => Exec["apt-get-update"],
+    }
+
+}
+
+
 # Install apt-cacher server
 #
 class apt::cacher {
diff --git a/apt/templates/sources.list.erb b/apt/templates/sources.list.erb
new file mode 100644
index 0000000..7d643bf
--- /dev/null
+++ b/apt/templates/sources.list.erb
@@ -0,0 +1,52 @@
+# See http://help.ubuntu.com/community/UpgradeNotes for how to upgrade to
+# newer versions of the distribution.
+
+deb <%= apt_archive_url %> <%= lsbdistcodename %> main restricted
+deb-src <%= apt_archive_url %> <%= lsbdistcodename %> main restricted
+
+## Major bug fix updates produced after the final release of the
+## distribution.
+deb <%= apt_archive_url %> <%= lsbdistcodename %>-updates main restricted
+deb-src <%= apt_archive_url %> <%= lsbdistcodename %>-updates main restricted
+
+## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu
+## team. Also, please note that software in universe WILL NOT receive any
+## review or updates from the Ubuntu security team.
+deb <%= apt_archive_url %> <%= lsbdistcodename %> universe
+deb-src <%= apt_archive_url %> <%= lsbdistcodename %> universe
+deb <%= apt_archive_url %> <%= lsbdistcodename %>-updates universe
+deb-src <%= apt_archive_url %> <%= lsbdistcodename %>-updates universe
+
+## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu 
+## team, and may not be under a free licence. Please satisfy yourself as to 
+## your rights to use the software. Also, please note that software in 
+## multiverse WILL NOT receive any review or updates from the Ubuntu
+## security team.
+deb <%= apt_archive_url %> <%= lsbdistcodename %> multiverse
+deb-src <%= apt_archive_url %> <%= lsbdistcodename %> multiverse
+deb <%= apt_archive_url %> <%= lsbdistcodename %>-updates multiverse
+deb-src <%= apt_archive_url %> <%= lsbdistcodename %>-updates multiverse
+
+## Uncomment the following two lines to add software from the 'backports'
+## repository.
+## N.B. software from this repository may not have been tested as
+## extensively as that contained in the main release, although it includes
+## newer versions of some applications which may provide useful features.
+## Also, please note that software in backports WILL NOT receive any review
+## or updates from the Ubuntu security team.
+# deb <%= apt_archive_url %> <%= lsbdistcodename %>-backports main restricted universe multiverse
+# deb-src <%= apt_archive_url %> <%= lsbdistcodename %>-backports main restricted universe multiverse
+
+## Uncomment the following two lines to add software from Canonical's
+## 'partner' repository.
+## This software is not part of Ubuntu, but is offered by Canonical and the
+## respective vendors as a service to Ubuntu users.
+# deb http://archive.canonical.com/ubuntu <%= lsbdistcodename %> partner
+# deb-src http://archive.canonical.com/ubuntu <%= lsbdistcodename %> partner
+
+deb <%= apt_security_url %> <%= lsbdistcodename %>-security main restricted
+deb-src <%= apt_security_url %> <%= lsbdistcodename %>-security main restricted
+deb <%= apt_security_url %> <%= lsbdistcodename %>-security universe
+deb-src <%= apt_security_url %> <%= lsbdistcodename %>-security universe
+deb <%= apt_security_url %> <%= lsbdistcodename %>-security multiverse
+deb-src <%= apt_security_url %> <%= lsbdistcodename %>-security multiverse