Hi All,

I have a use case that I  need to apply some filter (Custom traits) while 
Placement API fetch the resource providers for launching instance.

So that I can have list of resource provided which meets my 
condition/filter/validation. The validation is nothing but trust about the 
Host(compute node) where I am going to launch the instances.

The below link says that it is possible, don't have idea how to implement/test 
this scenario.

https://specs.openstack.org/openstack/nova-specs/specs/ocata/implemented/resource-providers-scheduler-db-filters.html


we would rather make a HTTP call to the placement API on a specific REST 
resource with a request that would return the list of resource providers' UUIDs 
that would match requested resources and traits criterias based on the original 
RequestSpec object.

Thanks  & Regards,

Mohan Ramu
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