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A new same_subtree query parameter will be accepted. The value is a comma-separated list of request group suffix strings $S. Each must exactly match a suffix on a granular group somewhere else in the request. Importantly, the identified request groups need not have a resources$S. If this is provided, at least one of the resource providers satisfying the specified request group must be an ancestor of the rest. The same_subtree query parameter can be repeated and each repeat group is treated independently. Co-Authored-By: Chris Dent <cdent@anticdent.org> Change-Id: I7fdeac24606359d37f1a7405d22c5797840e1a9e Story: 2005575 Task: 30784
109 lines
3.6 KiB
PHP
109 lines
3.6 KiB
PHP
=====================
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Allocation candidates
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=====================
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.. note:: Allocation candidates API requests are availiable starting from version 1.10.
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List allocation candidates
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==========================
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Returns a dictionary representing a collection of allocation requests
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and resource provider summaries. Each allocation request has
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information to form a ``PUT /allocations/{consumer_uuid}`` request to claim
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resources against a related set of resource providers. Additional parameters
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might be required, see `Update allocations`_. As several allocation
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requests are available it's necessary to select one. To make a
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decision, resource provider summaries are provided with the
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inventory/capacity information. For example, this information is used by
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nova-scheduler's FilterScheduler to make decisions about on which compute host
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to build a server.
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You can also find additional case studies of the request parameters in the
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`Modeling with Provider Trees`_ document.
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.. rest_method:: GET /allocation_candidates
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Normal Response Codes: 200
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Error response codes: badRequest(400)
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Request
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-------
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.. rest_parameters:: parameters.yaml
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- resources: resources_query_ac
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- required: required_traits_unnumbered
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- member_of: allocation_candidates_member_of
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- in_tree: allocation_candidates_in_tree
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- resourcesN: resources_query_granular
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- requiredN: required_traits_granular
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- member_ofN: allocation_candidates_member_of_granular
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- in_treeN: allocation_candidates_in_tree_granular
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- group_policy: allocation_candidates_group_policy
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- limit: allocation_candidates_limit
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- root_required: allocation_candidates_root_required
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- same_subtree: allocation_candidates_same_subtree
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Response (microversions 1.12 - )
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--------------------------------
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.. rest_parameters:: parameters.yaml
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- allocation_requests: allocation_requests
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- provider_summaries: provider_summaries_1_12
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- allocations: allocations_by_resource_provider
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- resources: resources
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- capacity: capacity
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- used: used
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- traits: traits_1_17
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- parent_provider_uuid: resource_provider_parent_provider_uuid_response_1_29
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- root_provider_uuid: resource_provider_root_provider_uuid_1_29
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- mappings: mappings
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Response Example (microversions 1.34 - )
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----------------------------------------
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.. literalinclude:: ./samples/allocation_candidates/get-allocation_candidates-1.34.json
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:language: javascript
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Response Example (microversions 1.29 - 1.33)
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--------------------------------------------
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.. literalinclude:: ./samples/allocation_candidates/get-allocation_candidates-1.29.json
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:language: javascript
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Response Example (microversions 1.17 - 1.28)
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--------------------------------------------
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.. literalinclude:: ./samples/allocation_candidates/get-allocation_candidates-1.17.json
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:language: javascript
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Response Example (microversions 1.12 - 1.16)
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--------------------------------------------
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.. literalinclude:: ./samples/allocation_candidates/get-allocation_candidates-1.12.json
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:language: javascript
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Response (microversions 1.10 - 1.11)
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------------------------------------
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.. rest_parameters:: parameters.yaml
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- allocation_requests: allocation_requests
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- provider_summaries: provider_summaries
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- allocations: allocations_array
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- resource_provider: resource_provider_object
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- uuid: resource_provider_uuid
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- resources: resources
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- capacity: capacity
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- used: used
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Response Example (microversions 1.10 - 1.11)
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--------------------------------------------
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.. literalinclude:: ./samples/allocation_candidates/get-allocation_candidates.json
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:language: javascript
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.. _`Modeling with Provider Trees`: https://docs.openstack.org/placement/latest/usage/provider-tree.html
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