OpenStack SDK - How to create image with Kernel id and Ramdisk parameters?

Question

I've been trying to create an OpenStack image informing the Kernel Id and Ramdisk Id, using the OpenStack Unified SDK (https://github.com/openstack/python-openstacksdk), but without success. I know this is possible, because the OpenStack CLI have this parameters, as shown on this page (http://docs.openstack.org/cli-reference/glance.html#glance-image-create), where the CLI have the "--kernel-id" and "--ramdisk-id" parameters. I've used this parameter in the terminal and confirmed they work, but I need to use them in python.

I'm trying to use the upload_method, as described here http://developer.openstack.org/sdks/python/openstacksdk/users/proxies/image.html#image-api-v2 but I can't get the attrs parameter right. Documentation only say it is suposed to be a dictionary. Here is the code I'm using

...
    atrib = {
        'properties': {
            'kernel_id': 'd84e1f2b-8d8c-4a4a-8858-77a8d5a93cb1',
            'ramdisk_id': 'cfef18e0-006e-477a-a098-593d43435a1e'
        } 
    } 
    with open(file) as fimage:
    image = image_service.upload_image(
        name=name,
        data=fimage,
        disk_format='qcow2',
        container_format='bare',
        **atrib)
....

And here is the error I'm getting:

  File "builder.py", line 121, in main
    **atrib
  File "/usr/lib/python2.7/site-packages/openstack/image/v2/_proxy.py", line 51, in upload_image
    **attrs)
  File "/usr/lib/python2.7/site-packages/openstack/proxy2.py", line 193, in _create
    return res.create(self.session)
  File "/usr/lib/python2.7/site-packages/openstack/resource2.py", line 570, in create
    json=request.body, headers=request.headers)
  File "/usr/lib/python2.7/site-packages/keystoneauth1/session.py", line 675, in post
    return self.request(url, 'POST', **kwargs)
  File "/usr/lib/python2.7/site-packages/openstack/session.py", line 52, in map_exceptions_wrapper
    http_status=e.http_status, cause=e)
openstack.exceptions.HttpException: HttpException: Bad Request, 400 Bad Request

Provided object does not match schema 'image': {u'kernel_id': u'd84e1f2b-8d8c-4a4a-8858-77a8d5a93cb1', u'ramdisk_id': u'cfef18e0-006e-477a-a098-593d43435a1e'} is not of type 'string'  Failed validating 'type' in schema['additionalProperties']:     {'type': 'string'}  On instance[u'properties']:     {u'kernel_id': u'd84e1f2b-8d8c-4a4a-8858-77a8d5a93cb1',      u'ramdisk_id': u'cfef18e0-006e-477a-a098-593d43435a1e'}

Already tried to use the update_image method, but without success, passing kernel id and ramdisk id as a strings creates the instance, but it does not boot. Does anyone knows how to solve this?

Answer 1

what the version of the glance api you use?

I have read the code in openstackclient/image/v1/images.py, openstackclient/v1/shell.py

## in shell.py
def do_image_create(gc, args):
    ...
    fields = dict(filter(lambda x: x[1] is not None, vars(args).items()))

    raw_properties = fields.pop('property')
    fields['properties'] = {}
    for datum in raw_properties:
        key, value = datum.split('=', 1)
        fields['properties'][key] = value
    ...    

    image = gc.images.create(**fields)

## in images.py
def create(self, **kwargs):
    ...
    for field in kwargs:
        if field in CREATE_PARAMS:
            fields[field] = kwargs[field]
        elif field == 'return_req_id':
            continue
        else:
            msg = 'create() got an unexpected keyword argument \'%s\''
            raise TypeError(msg % field)

    hdrs = self._image_meta_to_headers(fields)
    ...
    resp, body = self.client.post('/v1/images',
                                  headers=hdrs,
                                  data=image_data)
    ...

and openstackclient/v2/shell.py,openstackclient/image/v2.images.py(and i have debuged this too)

## in shell.py
def do_image_create(gc, args):
    ...
    raw_properties = fields.pop('property', [])
    for datum in raw_properties:
        key, value = datum.split('=', 1)
        fields[key] = value
    ...
    image = gc.images.create(**fields)

##in images.py
def create(self, **kwargs):
        """Create an image.""
        url = '/v2/images'

        image = self.model()
        for (key, value) in kwargs.items():
            try:
                setattr(image, key, value)
            except warlock.InvalidOperation as e:
                raise TypeError(utils.exception_to_str(e))

        resp, body = self.http_client.post(url, data=image)
        ...

it seems that, you can create a image use your way in version 1.0, but in version 2.0, you should use the kernel_id and ramdisk_id as below

atrib = {        
        'kernel_id': 'd84e1f2b-8d8c-4a4a-8858-77a8d5a93cb1',
        'ramdisk_id': 'cfef18e0-006e-477a-a098-593d43435a1e' 
} 

but the OpenStack SDK seems it can't trans those two argments to the url (because there is no Body define in openstack/image/v2/image.py. so you should modify the OpenStack SDK to support this.

BTW, the code of OpenStack is a little different from it's version, but many things are same.