Synnefo » snf-image-creator

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from os.path import basename

from kamaki.config import Config

from kamaki.clients import ClientError

from kamaki.clients.image import ImageClient

from kamaki.clients.pithos import PithosClient

from image_creator.util import FatalError

CONTAINER = "images"

class Kamaki(object):

    @staticmethod

    def get_account():

        config = Config()

        return config.get('storage', 'account')

    @staticmethod

    def get_token():

        config = Config()

        return config.get('global', 'token')

    @staticmethod

    def save_account(account):

        config = Config()

        config.set('storage', 'account', account)

        config.write()

    @staticmethod

    def save_token(token):

        config = Config()

        config.set('global', 'token', token)

        config.write()

    def __init__(self, account, token, output):

        self.account = account

        self.token = token

        self.out = output

        config = Config()

        pithos_url = config.get('storage', 'url')

        self.container = CONTAINER

        self.pithos_client = PithosClient(pithos_url, self.token, self.account,

                                          self.container)

        image_url = config.get('image', 'url')

        self.image_client = ImageClient(image_url, self.token)

    def upload(self, file_obj, size=None, remote_path=None, hp=None, up=None):

        """Upload a file to pithos"""

        path = basename(file_obj.name) if remote_path is None else remote_path

        try:

            self.pithos_client.create_container(self.container)

        except ClientError as e:

            if e.status != 202:  # Ignore container already exists errors

                raise e

        hash_cb = self.out.progress_generator(hp) if hp is not None else None

        upload_cb = self.out.progress_generator(up) if up is not None else None

        self.pithos_client.create_object(path, file_obj, size, hash_cb,

                                         upload_cb)

        return "pithos://%s/%s/%s" % (self.account, self.container, path)

    def register(self, name, location, metadata):

        """Register an image to ~okeanos"""

        # Convert all metadata to strings

        str_metadata = {}

        for (key, value) in metadata.iteritems():

            str_metadata[str(key)] = str(value)

        params = {'is_public': 'true', 'disk_format': 'diskdump'}

        self.image_client.register(name, location, params, str_metadata)

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