diff --git a/manifests/site.pp b/manifests/site.pp
index 167e65a4b5..99242e2243 100644
--- a/manifests/site.pp
+++ b/manifests/site.pp
@@ -1165,6 +1165,7 @@ node 'controller00.hpuswest.ic.openstack.org' {
     iptables_public_tcp_ports => [5000,5671,8774,9292,9696,35357], # keystone,rabbit,nova,glance,neutron,keystone
     sysadmins                 => hiera('sysadmins', []),
     enable_unbound            => false,
+    purge_apt_sources         => false,
   }
   class { '::openstack_project::infracloud::controller':
     keystone_rabbit_password         => hiera('keystone_rabbit_password'),
@@ -1194,6 +1195,7 @@ node /^compute\d{3}\.hpuswest\.ic\.openstack\.org$/ {
   class { '::openstack_project::server':
     sysadmins                 => hiera('sysadmins', []),
     enable_unbound            => false,
+    purge_apt_sources         => false,
   }
   class { '::openstack_project::infracloud::compute':
     nova_rabbit_password             => hiera('nova_rabbit_password'),
@@ -1214,6 +1216,7 @@ node /^baremetal\d{2}\.hpuswest\.ic\.openstack\.org$/ {
     iptables_public_udp_ports => [67,69],
     sysadmins                 => hiera('sysadmins', []),
     enable_unbound            => false,
+    purge_apt_sources         => false,
   }
 
   class { '::openstack_project::infracloud::baremetal':
diff --git a/modules/openstack_project/manifests/server.pp b/modules/openstack_project/manifests/server.pp
index b75f7f5065..fe823d35fa 100644
--- a/modules/openstack_project/manifests/server.pp
+++ b/modules/openstack_project/manifests/server.pp
@@ -16,6 +16,7 @@ class openstack_project::server (
   $puppetmaster_server       = 'puppetmaster.openstack.org',
   $manage_exim               = true,
   $pypi_index_url            = 'https://pypi.python.org/simple',
+  $purge_apt_sources         = true,
 ) {
   class { 'openstack_project::template':
     iptables_public_tcp_ports => $iptables_public_tcp_ports,
@@ -32,6 +33,6 @@ class openstack_project::server (
     manage_exim               => $manage_exim,
     sysadmins                 => $sysadmins,
     pypi_index_url            => $pypi_index_url,
-    purge_apt_sources         => true,
+    purge_apt_sources         => $purge_apt_sources,
   }
 }