Hi, I'm trying to trace a request made for an instance and looking at the flow in the code. I'm just trying to understand better how the request goes from the dashboard to the nova-api , to the other internal components of nova and to the scheduler and back with a suitable host and launching of the instance.
i just want to understand as to how the request goes from the api-call to the nova-api and so on after that. I have understood the nova-scheduler and in that, the filter_scheduler receives something called request_spec that is the specifications of the request that is made, and I want to see where this comes from. I was not very successful in reverse engineering this. I could use some help as I want to implement a scheduling algorithm of my own but for that I need to understand how and where the requests come in and how the flow works. If someone could guide me as to where i can find help or point in some direction then it would be of great help. -- Dhvanan Shah
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