Hi, Heat stackers: May I ask a question about the endpoint of Heat. I see the endpoints of Heat registered to Keystone look like this. 'http://10.229.45.150:8004/v1/$(project_id)s' . My question is that why use '$' instead of '%' as the replacement symbol. Is there some kind of rule? cheers zengchen -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.openstack.org/pipermail/openstack-dev/attachments/20161220/2d3499f9/attachment.html>