This was accidentally removed in
If581f301a5493ef33ac1386bdc22f9fca4f2544e looks like
Change-Id: I0e2c4fe664daca5c50921673db067701195c501f
(cherry picked from commit
f3772c6b0ab5550fc80c53b624d780a04545fbc6)
# disable_constraints: (boolean) optional, whether to disable Nova and Glance
# constraints for each role specified in the templates.
#
+# disable_upgrade_deployment: (boolean) optional, whether to run the
+# ansible upgrade steps for all services that are deployed on the role. If set
+# to True, the operator will drive the upgrade for this role's nodes.
+#
# upgrade_batch_size: (number): batch size for upgrades where tasks are
# specified by services to run in batches vs all nodes at once.
# This defaults to 1, but larger batches may be specified here.