None value allowed for port parameter in legacy v2 API, but not allowed in v2.1 API

[Alex Xu]

In the legacy v2 API, we create server with network like this:
"networks": [{"uuid": "f4001fde-7bb8-4a73-b1a9-03b444d1f6f8", "port": null}]'
The port can be null.

With v2.1 API, you will get 400:

curl -g -i -X POST http://192.168.2.176:8774/v2.1/b90b53ed87d74e19806da34dbaa056c9/servers -H "User-Agent: python-novaclient" -H "Content-Type: application/json" -H "Accept: application/json" -H "X-Auth-Token: e740965218754560a98d9ac188271253" -d '{"server": {"name": "vm4", "imageRef": "33a713dc-7efe-488c-bf12-d902ff5e6118", "flavorRef": "1", "max_count": 1, "min_count": 1, "networks": [{"uuid": "f4001fde-7bb8-4a73-b1a9-03b444d1f6f8", "port": null}]}}'
HTTP/1.1 400 Bad Request
X-Openstack-Nova-Api-Version: 2.1
Vary: X-OpenStack-Nova-API-Version
Content-Type: application/json; charset=UTF-8
Content-Length: 117
X-Compute-Request-Id: req-c5ab91ca-dc24-42ea-8272-7f35571b15da
Date: Mon, 07 Mar 2016 13:01:58 GMT

{"badRequest": {"message": "Invalid input for field/attribute port. Value: None. None is not a 'uuid'", "code": 400}}

This is due to we write json-schema like this:
'port': {
       'type': ['string', 'null'],
       format': 'uuid'
 },

We assume 'type' will enable 'null' value and 'format' only against on string type. Actually 'null' will be passed to format check also, then the format check return fault.

[Alex Xu (xuhj)]

The discussion on the ML http://lists.openstack.org/pipermail/openstack-dev/2016-March/088514.html

[jichenjc (jichenjc)]

https://review.openstack.org/#/c/288268 mark this bug as fixed due to this patch merged

[Markus Zoeller (markus_z) (mzoeller)]

As we use the "direct-release" model in Nova we don't use the
"fix comitted" status for merged bug fixes anymore. I'm setting
this manually to "fix-released" to be consistent.

[1] "[openstack-dev] [release][all] bugs will now close automatically
    when patches merge"; Doug Hellmann; 2015-12-07;
    http://lists.openstack.org/pipermail/openstack-dev/2015-December/081612.html