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How to use create_volume_from_image method in tempest

Best Python code snippet using tempest_python

snapshot.py

Source:snapshot.py

...60      default_retry_delay=15,61      soft_time_limit=15,62      max_retries=3,63      ignore_results=True)64def create_volume_from_image(identity_uuid, image_id, size_id, name,65                             description, metadata):66    """67    Create a new volume from an image68    """69    try:70        identity = Identity.objects.get(uuid=identity_uuid)71        user = identity.created_by72        driver = get_cached_driver(identity=identity)73        image = driver._connection.ex_get_image(image_id)74        size = driver._connection.ex_get_size(size_id)75        if not image:76            raise Exception("No image found for id=%s." % image_id)77        if not size:78            raise Exception("No size found for id=%s." % size_id)...

driver.py

Source:driver.py

...16class NoopManager(object):17    def __init__(self):18        super(NoopManager, self).__init__()19        self.volumeconfig = {}20    def create_volume_from_image(self, image_id):21        LOG.debug("Volume %s no-op, image id %s",22                  self.__class__.__name__, image_id)23        self.volumeconfig[image_id] = (image_id, 'create_volume_from_image')24        volume_id = uuidutils.generate_uuid()25        return volume_id26    def delete_volume(self, volume_id):27        LOG.debug("Volume %s no-op, volume id %s",28                  self.__class__.__name__, volume_id)29        self.volumeconfig[volume_id] = (volume_id, 'delete')30    def get_image_from_volume(self, volume_id):31        LOG.debug("Volume %s no-op, volume id %s",32                  self.__class__.__name__, volume_id)33        self.volumeconfig[volume_id] = (volume_id, 'get_image_from_volume')34        image_id = uuidutils.generate_uuid()35        return image_id36class NoopVolumeDriver(driver_base.VolumeBase):37    def __init__(self):38        super(NoopVolumeDriver, self).__init__()39        self.driver = NoopManager()40    def create_volume_from_image(self, image_id):41        volume_id = self.driver.create_volume_from_image(image_id)42        return volume_id43    def delete_volume(self, volume_id):44        self.driver.delete_volume(volume_id)45    def get_image_from_volume(self, volume_id):46        image_id = self.driver.get_image_from_volume(volume_id)...

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