Clean up stack.sh config

* Clean up interactive configuration
* Complete moving initialization of service-specific varialbes into the
  service lib/* files.
* Cosmetic cleanups

Change-Id: Iea14359bd224dd5533201d4c7cb1437d5382c4d1
diff --git a/lib/cinder b/lib/cinder
index b3e1904..7688ad9 100644
--- a/lib/cinder
+++ b/lib/cinder
@@ -53,6 +53,11 @@
 # Support for multi lvm backend configuration (default is no support)
 CINDER_MULTI_LVM_BACKEND=$(trueorfalse False $CINDER_MULTI_LVM_BACKEND)
 
+# Should cinder perform secure deletion of volumes?
+# Defaults to true, can be set to False to avoid this bug when testing:
+# https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1023755
+CINDER_SECURE_DELETE=`trueorfalse True $CINDER_SECURE_DELETE`
+
 # Name of the lvm volume groups to use/create for iscsi volumes
 # VOLUME_GROUP2 is used only if CINDER_MULTI_LVM_BACKEND = True
 VOLUME_GROUP=${VOLUME_GROUP:-stack-volumes}