Cloned from launchpad blueprint https://blueprints.launchpad.net/nova/+spec/multi-tenancy-isolation-only-aggregates.

Description:

The implementation of the blueprint “Multi-tenancy isolation with aggregates” defines that:
“If a host doesn't belongs to any aggregate it can create instances from all tenants.
Also, if a host belongs to aggregates that don't define the metadata filter_tenant_id
it can create instances from all tenants.”

This use case only excludes instances from non-defined tenant(s) to start in
the aggregate(s).

The goal for this blueprint is to implement a new scheduler filter "ProjectsToAggregateFilter" that isolates a project in a aggregate.

Specification URL (additional information):

None