tree d1fa5e173bc286904a99a7861c7d946c08c59980
parent a99aa9e30c4022a45d39bef89af8c55e46e70fbb
author ghanshyam <ghanshyam.mann@nectechnologies.in> 1457482690 +0900
committer Ghanshyam Mann <ghanshyam.mann@nectechnologies.in> 1457486362 +0000

Make 'device' optional in volume attach response schema

Volume attachment for server can return with no 'device' or as None
in response. It is optional on those APIs.

List and Show API does not include the 'device' in response if no
mountpoint for volume attachment.

{
    "volumeAttachments": [
        {
            "id": "a26887c6-c47b-4654-abb5-dfadf7d3f803",
            "serverId": "4d8c3732-a248-40ed-bebc-539a6ffd25c0",
            "volumeId": "a26887c6-c47b-4654-abb5-dfadf7d3f803"
        }
    ]
}

ref-https://github.com/openstack/nova/blob/240b3507e218c3f8d59e12dd067790eafec1e969/nova/api/openstack/compute/volumes.py#L223-L224

Create API includes 'device' but with None value.
{
    "volumeAttachment": {
        "device": null,
        "id": "a26887c6-c47b-4654-abb5-dfadf7d3f803",
        "serverId": "0c92f3f6-c253-4c9b-bd43-e880a8d2eb0a",
        "volumeId": "a26887c6-c47b-4654-abb5-dfadf7d3f803"
    }
}

One example will be when server is in shelved offload state where server
is not on any host so there will not be any mountpoint for attached volume.

This commit makes that element optional in response schema too.

Change-Id: I377307bb92583f84c4fa147aa608ca27615f0f8b
Related-Bug: #1554440