template.diff

root@hydrogen:~# diff -u /etc/ansible/roles/os_cinder/templates/lvm.conf.j2 /etc/ansible/roles/openstack_hosts/templates/lvm.conf.j2
--- /etc/ansible/roles/os_cinder/templates/lvm.conf.j2	2016-07-20 11:49:55.000000000 -0500
+++ /etc/ansible/roles/openstack_hosts/templates/lvm.conf.j2	2016-07-08 11:09:55.000000000 -0500
@@ -19,10 +19,12 @@
     {% if used_lvm_devices.append('"r/.*/"') %}{% endif %}
 {% endif %}
 
+{% set use_udev = 1 %}
+
 devices {
     dir = "/dev"
     scan = [ "/dev" ]
-    obtain_device_list_from_udev = 1
+    obtain_device_list_from_udev = {{ use_udev }}
     preferred_names = [ ]
     filter = [ {{ used_lvm_devices|join(', ') }} ]
     cache_dir = "/run/lvm"
@@ -90,8 +92,8 @@
 }
 activation {
     checks = 0
-    udev_sync = 1
-    udev_rules = 1
+    udev_sync = {{ use_udev }}
+    udev_rules = {{ use_udev }}
     verify_udev_operations = 0
     retry_deactivation = 1
     missing_stripe_filler = "error"