1. Does anybody using the workflow based front end tools for VM requisition, approval and provisioning for automating the requests from various users ?

(The users can be or cannot be from backend  AD/LDAP)

2. Or do we need to code from scratch to integrate such a mechanism(Do Horizon dashboard need to be customized for this workflow based  approval and auto provisioning and de provisioning of VMs ? ) .

Where to start ?  Pls guide me on how to achieve this functionality for openstack  IaaS cloud infrastructure. ( we are using Ussuri version).

Thanks in advance,

Krish