@@ -1383,7 +1383,12 @@ check_libs_from_git

 # ===============

 # Prepare bash completion for OSC

-openstack complete | sudo tee /etc/bash_completion.d/osc.bash_completion > /dev/null

+#

+# BUG: https://bugs.launchpad.net/python-openstackclient/+bug/1619274

+# the os-cloud param should not be required but if we don't provide it

+# then this command hangs indefinitely if something is wrong with

+# default environment credentials.

+openstack --os-cloud=devstack complete | sudo tee /etc/bash_completion.d/osc.bash_completion > /dev/null

 # If cinder is configured, set global_filter for PV devices

 if is_service_enabled cinder; then