nova/api-ref/source/os-aggregates.inc
Dan Smith 3391298706 Add image caching API for aggregates
This adds a new microversion and support for requesting image pre-caching
on an aggregate.

Related to blueprint image-precache-support

Change-Id: I4ab96095106b38737ed355fcad07e758f8b5a9b0
2019-10-15 21:22:31 -04:00

390 lines
9.2 KiB
ReStructuredText

.. -*- rst -*-
================================
Host aggregates (os-aggregates)
================================
Creates and manages host aggregates. An aggregate assigns metadata to
groups of compute nodes.
Policy defaults enable only users with the administrative role to perform
operations with aggregates. Cloud providers can change these permissions
through `policy file configuration
<https://docs.openstack.org/nova/latest/configuration/policy.html>`__.
List Aggregates
===============
.. rest_method:: GET /os-aggregates
Lists all aggregates. Includes the ID, name, and availability zone for each aggregate.
Normal response codes: 200
Error response codes: unauthorized(401), forbidden(403)
Response
--------
.. rest_parameters:: parameters.yaml
- aggregates: aggregates
- availability_zone: aggregate_az
- created_at: created
- deleted_at: deleted_at
- deleted: deleted
- hosts: aggregate_host_list
- id: aggregate_id_body
- metadata: aggregate_metadata_response
- name: aggregate_name
- updated_at: updated_consider_null
- uuid: aggregate_uuid
**Example List Aggregates (v2.41): JSON response**
.. literalinclude:: ../../doc/api_samples/os-aggregates/v2.41/aggregates-list-get-resp.json
:language: javascript
Create Aggregate
================
.. rest_method:: POST /os-aggregates
Creates an aggregate. If specifying an option availability_zone, the aggregate is
created as an availability zone and the availability zone is visible to normal users.
Normal response codes: 200
Error response codes: badRequest(400), unauthorized(401), forbidden(403), conflict(409)
Request
-------
.. rest_parameters:: parameters.yaml
- aggregate: aggregate
- name: aggregate_name
- availability_zone: aggregate_az_optional_create
**Example Create Aggregate: JSON request**
.. literalinclude:: ../../doc/api_samples/os-aggregates/aggregate-post-req.json
:language: javascript
Response
--------
.. rest_parameters:: parameters.yaml
- aggregate: aggregate
- availability_zone: aggregate_az
- created_at: created
- deleted_at: deleted_at
- deleted: deleted
- id: aggregate_id_body
- name: aggregate_name
- updated_at: updated_consider_null
- uuid: aggregate_uuid
**Example Create Aggregate (v2.41): JSON response**
.. literalinclude:: ../../doc/api_samples/os-aggregates/v2.41/aggregate-post-resp.json
:language: javascript
Show Aggregate Details
======================
.. rest_method:: GET /os-aggregates/{aggregate_id}
Shows details for an aggregate. Details include hosts and metadata.
Normal response codes: 200
Error response codes: unauthorized(401), forbidden(403), itemNotFound(404)
Request
-------
.. rest_parameters:: parameters.yaml
- aggregate_id: aggregate_id
Response
--------
.. rest_parameters:: parameters.yaml
- aggregate: aggregate
- availability_zone: aggregate_az
- created_at: created
- deleted_at: deleted_at
- deleted: deleted
- hosts: hosts
- id: aggregate_id_body
- metadata: aggregate_metadata_response
- name: aggregate_name
- updated_at: updated_consider_null
- uuid: aggregate_uuid
**Example Show Aggregate Details (v2.41): JSON response**
.. literalinclude:: ../../doc/api_samples/os-aggregates/v2.41/aggregates-get-resp.json
:language: javascript
Update Aggregate
================
.. rest_method:: PUT /os-aggregates/{aggregate_id}
Updates either or both the name and availability zone for an aggregate.
If the aggregate to be updated has host that already in the given
availability zone, the request will fail with 400 error.
Normal response codes: 200
Error response codes: badRequest(400), unauthorized(401), forbidden(403),
itemNotFound(404), conflict(409)
Request
-------
.. rest_parameters:: parameters.yaml
- aggregate_id: aggregate_id
- aggregate: aggregate
- name: aggregate_name_optional
- availability_zone: aggregate_az_optional_update
**Example Update Aggregate: JSON request**
.. literalinclude:: ../../doc/api_samples/os-aggregates/aggregate-update-post-req.json
:language: javascript
Response
--------
.. rest_parameters:: parameters.yaml
- aggregate: aggregate
- availability_zone: aggregate_az
- created_at: created
- deleted_at: deleted_at
- deleted: deleted
- hosts: hosts
- id: aggregate_id_body
- metadata: aggregate_metadata_response
- name: aggregate_name
- updated_at: updated_consider_null
- uuid: aggregate_uuid
**Example Update Aggregate (v2.41): JSON response**
.. literalinclude:: ../../doc/api_samples/os-aggregates/v2.41/aggregate-update-post-resp.json
:language: javascript
Delete Aggregate
================
.. rest_method:: DELETE /os-aggregates/{aggregate_id}
Deletes an aggregate.
Normal response codes: 200
Error response codes: badRequest(400), unauthorized(401), forbidden(403), itemNotFound(404)
Request
-------
.. rest_parameters:: parameters.yaml
- aggregate_id: aggregate_id
Response
--------
There is no body content for the response of a successful DELETE action.
Add Host
========
.. rest_method:: POST /os-aggregates/{aggregate_id}/action
Adds a host to an aggregate.
Specify the ``add_host`` action and host name in the request body.
Normal response codes: 200
Error response codes: badRequest(400), unauthorized(401), forbidden(403),
itemNotFound(404), conflict(409)
Request
-------
.. rest_parameters:: parameters.yaml
- aggregate_id: aggregate_id
- add_host: aggregate_add_host
- host: host_name_body
**Example Add Host: JSON request**
.. literalinclude:: ../../doc/api_samples/os-aggregates/aggregate-add-host-post-req.json
:language: javascript
Response
--------
.. rest_parameters:: parameters.yaml
- aggregate: aggregate
- availability_zone: aggregate_az
- created_at: created
- deleted_at: deleted_at
- deleted: deleted
- hosts: hosts
- id: aggregate_id_body
- metadata: aggregate_metadata_response
- name: aggregate_name
- updated_at: updated_consider_null
- uuid: aggregate_uuid
**Example Add Host (v2.41): JSON response**
.. literalinclude:: ../../doc/api_samples/os-aggregates/v2.41/aggregates-add-host-post-resp.json
:language: javascript
Remove Host
===========
.. rest_method:: POST /os-aggregates/{aggregate_id}/action
Removes a host from an aggregate.
Specify the ``remove_host`` action and host name in the request body.
Normal response codes: 200
Error response codes: badRequest(400), unauthorized(401), forbidden(403),
itemNotFound(404), conflict(409)
Request
-------
.. rest_parameters:: parameters.yaml
- aggregate_id: aggregate_id
- remove_host: aggregate_remove_host
- host: host_name_body
**Example Remove Host: JSON request**
.. literalinclude:: ../../doc/api_samples/os-aggregates/aggregate-remove-host-post-req.json
:language: javascript
Response
--------
.. rest_parameters:: parameters.yaml
- aggregate: aggregate
- availability_zone: aggregate_az
- created_at: created
- deleted_at: deleted_at
- deleted: deleted
- hosts: hosts
- id: aggregate_id_body
- metadata: aggregate_metadata_response
- name: aggregate_name
- updated_at: updated_consider_null
- uuid: aggregate_uuid
**Example Remove Host (v2.41): JSON response**
.. literalinclude:: ../../doc/api_samples/os-aggregates/v2.41/aggregates-remove-host-post-resp.json
:language: javascript
Create Or Update Aggregate Metadata
===================================
.. rest_method:: POST /os-aggregates/{aggregate_id}/action
Creates or replaces metadata for an aggregate.
Specify the ``set_metadata`` action and metadata info in the request body.
Normal response codes: 200
Error response codes: badRequest(400), unauthorized(401), forbidden(403),
itemNotFound(404)
Request
-------
.. rest_parameters:: parameters.yaml
- aggregate_id: aggregate_id
- set_metadata: set_metadata
- metadata: aggregate_metadata_request
**Example Create Or Update Aggregate Metadata: JSON request**
.. literalinclude:: ../../doc/api_samples/os-aggregates/aggregate-metadata-post-req.json
:language: javascript
Response
--------
.. rest_parameters:: parameters.yaml
- aggregate: aggregate
- availability_zone: aggregate_az
- created_at: created
- deleted_at: deleted_at
- deleted: deleted
- hosts: hosts
- id: aggregate_id_body
- metadata: aggregate_metadata_response
- name: aggregate_name
- updated_at: updated_consider_null
- uuid: aggregate_uuid
**Example Create Or Update Aggregate Metadata (v2.41): JSON response**
.. literalinclude:: ../../doc/api_samples/os-aggregates/v2.41/aggregates-metadata-post-resp.json
:language: javascript
Request Image Pre-caching for Aggregate
=======================================
.. rest_method:: POST /os-aggregates/{aggregate_id}/images
Requests that a set of images be pre-cached on compute nodes within the referenced aggregate.
This API is available starting with microversion 2.81.
Normal response codes: 202
Error response codes: badRequest(400), unauthorized(401), forbidden(403),
itemNotFound(404)
Request
-------
.. rest_parameters:: parameters.yaml
- aggregate_id: aggregate_id
- cache: cache
- cache.id: image_id_body
**Example Request Image pre-caching for Aggregate (v2.81): JSON request**
.. literalinclude:: ../../doc/api_samples/os-aggregates/v2.81/aggregate-images-post-req.json
:language: javascript
Response
--------
The response body is always empty.