Hi,
I am working in a VM placement algorithm for a cloud data center.
Does anybody knows when a user asking for some VMs, can he specify where his input data should be stored? in a storage pool or inside the VM?
In the other words, when we are writing a VM placement algorithm in openstack, can we decide based on where the data would be?
Dear,
First of all You need to understand:
Nova-Scheduler: This service decides the right hypervisors for placing VMs in OpenStack Platform.
Nova-Conductor: This service acts as a broker and handles essentials like database queries, statistics and service updates.
When nova-scheduler gets a request for placing a VM, it:
In fact, I want to write an algorithm for Nova-scheduler to select a hypervisor. I want to differ between VMs which want to fetch data from the storage pool and the ones which do not want.
I want to know whether or not it is possible to have this information in openstack scheduler (filter class) ?
please refer following link:
https://docs.openstack.org/nova/rocky/user/filter-scheduler.html