Python glance-client image-create validation error

[Diogo Monteiro]

When using the python-glance client to create an image the schema validator fails when validating the locations object.

Basing from the format provided on the image schema:
{
    "properties": {
        "locations": {
            "items": {
                "required": ["url", "metadata"],
                "type": "object",
                "properties": {
                    "url": {
                        "type": "string",
                        "maxLength": 255
                    },
                    "metadata": {
                        "type": "object"
                    }
                }
            },
            "type": "array",
            "description": "A set of URLs to access the image file kept in external store"
        },
    }
}

The locations attribute is an array of objects containing two attributes, url and metadata, eg;
locations: [
  {
     url: 'image.url',
    metadata: {}
  }
]

However, when trying to set an image location the following validation error is raised:
glance --debug --os-image-api-version 2 image-create --locations "https://cloud-images.ubuntu.com/lucid/current/lucid-server-cloudimg-i386-disk1.img"

Failed validating 'type' in schema['properties']['locations']['items']:
    {'properties': {'metadata': {'type': 'object'},
                    'url': {'maxLength': 255, 'type': 'string'}},
     'required': ['url', 'metadata'],
     'type': 'object'}

On instance['locations'][0]:
    'https://cloud-images.ubuntu.com/lucid/current/lucid-server-cloudimg-i386-disk1.img'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/Library/Frameworks/Python.framework/Versions/3.4/lib/python3.4/site-packages/glanceclient/v2/images.py", line 154, in create
    setattr(image, key, value)
  File "/Library/Frameworks/Python.framework/Versions/3.4/lib/python3.4/site-packages/warlock/model.py", line 75, in __setattr__
    self.__setitem__(key, value)
  File "/Library/Frameworks/Python.framework/Versions/3.4/lib/python3.4/site-packages/warlock/model.py", line 50, in __setitem__
    raise exceptions.InvalidOperation(msg)
warlock.exceptions.InvalidOperation: Unable to set 'locations' to '['https://cloud-images.ubuntu.com/lucid/current/lucid-server-cloudimg-i386-disk1.img']'. Reason: 'https://cloud-images.ubuntu.com/lucid/current/lucid-server-cloudimg-i386-disk1.img' is not of type 'object'

Failed validating 'type' in schema['properties']['locations']['items']:
    {'properties': {'metadata': {'type': 'object'},
                    'url': {'maxLength': 255, 'type': 'string'}},
     'required': ['url', 'metadata'],
     'type': 'object'}

On instance['locations'][0]:
    'https://cloud-images.ubuntu.com/lucid/current/lucid-server-cloudimg-i386-disk1.img'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/Library/Frameworks/Python.framework/Versions/3.4/lib/python3.4/site-packages/glanceclient/shell.py", line 620, in main
    args.func(client, args)
  File "/Library/Frameworks/Python.framework/Versions/3.4/lib/python3.4/site-packages/glanceclient/v2/shell.py", line 68, in do_image_create
    image = gc.images.create(**fields)
  File "/Library/Frameworks/Python.framework/Versions/3.4/lib/python3.4/site-packages/glanceclient/v2/images.py", line 156, in create
    raise TypeError(utils.exception_to_str(e))
TypeError: Unable to set 'locations' to '['https://cloud-images.ubuntu.com/lucid/current/lucid-server-cloudimg-i386-disk1.img']'. Reason: 'https://cloud-images.ubuntu.com/lucid/current/lucid-server-cloudimg-i386-disk1.img' is not of type 'object'

Failed validating 'type' in schema['properties']['locations']['items']:
    {'properties': {'metadata': {'type': 'object'},
                    'url': {'maxLength': 255, 'type': 'string'}},
     'required': ['url', 'metadata'],
     'type': 'object'}

On instance['locations'][0]:
    'https://cloud-images.ubuntu.com/lucid/current/lucid-server-cloudimg-i386-disk1.img'
Unable to set 'locations' to '['https://cloud-images.ubuntu.com/lucid/current/lucid-server-cloudimg-i386-disk1.img']'. Reason: 'https://cloud-images.ubuntu.com/lucid/current/lucid-server-cloudimg-i386-disk1.img' is not of type 'object'

Failed validating 'type' in schema['properties']['locations']['items']:
    {'properties': {'metadata': {'type': 'object'},
                    'url': {'maxLength': 255, 'type': 'string'}},
     'required': ['url', 'metadata'],
     'type': 'object'}

On instance['locations'][0]:
    'https://cloud-images.ubuntu.com/lucid/current/lucid-server-cloudimg-i386-disk1.img'