API: Get host state for nova server

Registered by Tomi Juvonen

User queries his VMs to see the state and trust it is correct. After host
fault the VM states do not get updated. User should have indication of host
being down when querying his VMs.

Blueprint information

Status:
Complete
Approver:
John Garbutt
Priority:
Low
Drafter:
Tomi Juvonen
Direction:
Approved
Assignee:
Tomi Juvonen
Definition:
Approved
Series goal:
Accepted for mitaka
Implementation:
Implemented
Milestone target:
milestone icon mitaka-2
Started by
John Garbutt
Completed by
Tomi Juvonen

Related branches

Sprints

Whiteboard

Gerrit topic: https://review.openstack.org/#q,topic:bp/get-valid-server-state,n,z

Addressed by: https://review.openstack.org/192246
    Get valid server state

Addressed by: https://review.openstack.org/241562
    Add host_status attribute for servers/detail and servers/{server_id}

Addressed by: https://review.openstack.org/260314
    Get valid server state

Addressed by: https://review.openstack.org/267062
    Add object and database support for host_status API

(?)

Work Items

Dependency tree

* Blueprints in grey have been implemented.

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