nova/placement-api-ref/source/traits.inc
Takashi NATSUME 49a8495e12 [placement] Fix format in placement API ref
In "Delete traits" API of Placement API reference,
the format of response codes description is wrong.
"409 Conflict if the name to delete has associations with any"
is bold, but "ResourceProvider." is not.
So fix it.

TrivialFix
Change-Id: I963c350bfc339d4db769b0bfd6bba1087fa065e0
2017-11-30 08:36:40 +00:00

132 lines
2.8 KiB
PHP

======
Traits
======
Traits are *qualitative* characteristics of resource providers.
The classic example for traits can be requesting disk from different
providers: a user may request 80GB of disk space for an instance
(quantitative), but may also expect that the disk be SSD instead of
spinning disk (qualitative). Traits provide a way to mark that a
storage provider is SSD or spinning.
.. note:: Traits API requests are availiable starting from version 1.6.
List traits
===========
Return a list of valid trait strings according to parameters specified.
.. rest_method:: GET /traits
Normal Response Codes: 200
Request
-------
Several query parameters are available to filter the returned list of
traits. If multiple different parameters are provided, the results
of all filters are merged with a boolean `AND`.
.. rest_parameters:: parameters.yaml
- name: trait_name_query
- associated: trait_associated
Response
--------
.. rest_parameters:: parameters.yaml
- traits: traits
Response Example
----------------
.. literalinclude:: get-traits.json
:language: javascript
Show traits
===========
Check if a trait name exists in this cloud.
.. rest_method:: GET /traits/{name}
Normal Response Codes: 204
Error response codes: itemNotFound(404)
Request
-------
.. rest_parameters:: parameters.yaml
- name: trait_name
Response
--------
No body content is returned on a successful GET.
Update traits
=============
Insert a new custom trait. If traits already exists 204 will be returned.
There are two kinds of traits: the standard traits and the custom traits.
The standard traits are interoperable across different Openstack cloud
deployments. The definition of standard traits comes from the `os-traits`
library. The standard traits are read-only in the placement API which means
that the user can't modify any standard traits through API.
The custom traits are used by admin users to manage the non-standard
qualitative information of resource providers.
.. rest_method:: PUT /traits/{name}
Normal Response Codes: 201, 204
Error response codes: badRequest(400)
* `400 BadRequest` if trait name is not prefixed with `CUSTOM_` prefix.
Request
-------
.. rest_parameters:: parameters.yaml
- name: trait_name
Response
--------
No body content is returned on a successful PUT.
Delete traits
=============
Delete the trait specified be `{name}`. Note that only custom traits can be
deleted.
.. rest_method:: DELETE /traits/{name}
Normal Response Codes: 204
Error response codes: badRequest(400), itemNotFound(404), conflict(409)
* `400 BadRequest` if the name to delete is standard trait.
* `404 Not Found` if no such trait exists.
* `409 Conflict` if the name to delete has associations with any
ResourceProvider.
Request
-------
.. rest_parameters:: parameters.yaml
- name: trait_name
Response
--------
No body content is returned on a successful DELETE.