nova/releasenotes/notes/placement-rest-api-filter-providers-by-resources-0ab51c9766fe654f.yaml
Sylvain Bauza a5dc7f1a11 Expose a REST API for a specific list of RPs
Now that we merged the object method for getting the list of ResourceProviders
based on a specific amount request, we need to expose that method into a REST
API call so that the scheduler client could be calling it.

Co-Authored-By: Jay Pipes <jaypipes@gmail.com>

Change-Id: Ia8b534d20c064eb3a767f95ca22814925acfaa77
Implements: blueprint resource-providers-get-by-request
2017-01-13 17:57:29 -05:00

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YAML

---
features:
- |
A new Placement API microversion 1.4 is added. Users may now query the
Placement REST API for resource providers that have the ability to meet a
set of requested resource amounts. The `GET /resource_providers` API call
can have a "resources" query string parameter supplied that indicates the
requested amounts of various resources that a provider must have the
capacity to serve. The "resources" query string parameter takes the form:
``?resources=$RESOURCE_CLASS_NAME:$AMOUNT,$RESOURCE_CLASS_NAME:$AMOUNT``
For instance, if the user wishes to see resource providers that can service
a request for 2 vCPUs, 1024 MB of RAM and 50 GB of disk space, the user can
issue a request of::
``GET /resource_providers?resources=VCPU:2,MEMORY_MB:1024,DISK_GB:50``
The placement API is only available to admin users.