The argument availability_zone of create aggregate should be optional

[Alex Xu]

We create aggregate without availability-zone by nova-client, the log as below:
REQ: curl -i http://cloudcontroller:8774/v2/5fbc0de7642a47729bfdfa7cb17166e2/os-aggregates -X POST -H "X-Auth-Project-Id: admin" -H "User-Agent: python-novaclient" -H "Content-Type: application/json" -H "Accept: application/json" -H "X-Auth-Token: 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-zCB-AIBATBcMFcxCzAJBgNVBAYTAlVTMQ4wDAYDVQQIEwVVbnNldDEOMAwGA1UEBxMFVW5zZXQxDjAMBgNVBAoTBVVuc2V0MRgwFgYDVQQDEw93d3cuZXhhbXBsZS5jb20CAQEwBwYFKw4DAhowDQYJKoZIhvcNAQEBBQAEgYBNymYJ8-+Jn7i39Veti7alzrb3U9PKlhiZhc2TEnF5CXxHlRRZaM816GnlimgnVNTxYtft7ey1eUXGq2ZpA-q49AKPuYASDXlk-pobOFy6Vg+f-+CqA-+xdRJcrt4GO-054a4GLiDopPV9wHMn4o5UYIARJbKUydoqgBRxRbAfWg==" -d '{"aggregate": {"name": "name1", "availability_zone": null}}'

RESP: [200] CaseInsensitiveDict({'date': 'Mon, 18 Nov 2013 07:49:15 GMT', 'content-length': '170', 'content-type': 'application/json', 'x-compute-request-id': 'req-f6b11fd5-0602-43d4-b878-a335eb9ff401'})
RESP BODY: {"aggregate": {"name": "name1", "availability_zone": null, "deleted": false, "created_at": "2013-11-18T07:49:15.000000", "updated_at": null, "deleted_at": null, "id": 1}}

It means we can aggregate without availability-zone, but we still need create with argument "availability_zone": null.

We can make it optional in the request.

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/43061
Committed: https://git.openstack.org/cgit/openstack/nova/commit/?id=eb7d75457f6def06dfef62b0590502e05e7602f5
Submitter: Jenkins
Branch: master

commit eb7d75457f6def06dfef62b0590502e05e7602f5
Author: He Jie Xu <email address hidden>
Date: Wed Aug 21 14:27:42 2013 +0800

    Make availability_zone optional in create for aggregates

    As the novaclient's help message, we can create aggregate without
    availability_zone. But the api didn't allow it, so this patch make
    it optional.

    Closes-bug: 1252177

    DocImpact

    Change-Id: I64629d71648900bf5be554d9afa4ae47d6b651d0