Heat is a service to orchestrate multiple composite cloud applications using templates, through both an OpenStack-native REST API and a CloudFormation-compatible Query API.
Why heat? It makes the clouds rise and keeps them there.
If you'd like to run from the master branch, you can clone the git repo:
git clone https://opendev.org/openstack/heat
If you'd like to report a Story (we used to call a bug/blueprint), you can report it under Report a story in Heat's StoryBoard. If you must report the story under other sub-project of heat, you can find them all in Heat StoryBoard Group. if you encounter any issue.