Updated openstack/openstack
Project: openstack/heat  d4a42858876baca7709d33b3740fc6b73208084f
null
Enable usage of custom constraint in parameters

Add a new custom_constraint keyword type in HOT parameters to allow
validation of custom parameters.

blueprint param-constraints
Co-Authored-By: cedric.soulas@cloudwatt.com
Change-Id: Ic52475ea8a39541f7b1643038a2bcba15f0d7471