Revision 49c07ce3 image_creator/kamaki_wrapper.py
| b/image_creator/kamaki_wrapper.py | ||
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from kamaki.clients.astakos import AstakosClient |
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config = Config() |
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class Kamaki(object): |
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"""Wrapper class for the ./kamaki library""" |
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CONTAINER = "images" |
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@staticmethod |
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def get_token(): |
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"""Get the saved token""" |
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config = Config() |
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return config.get('global', 'token')
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def get_default_cloud_name(): |
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"""Returns the name of the default cloud""" |
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clouds = config.keys('cloud')
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default = config.get('global', 'default_cloud')
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if not default: |
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return clouds[0] if len(clouds) else "" |
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return default if default in clouds else "" |
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@staticmethod |
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def set_default_cloud(name): |
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"""Sets a cloud account as default""" |
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config.set('global', 'default_cloud', name)
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config.write() |
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@staticmethod |
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def get_clouds(): |
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"""Returns the list of available clouds""" |
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names = config.keys('cloud')
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clouds = {}
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for name in names: |
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clouds[name] = config.get('cloud', name)
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return clouds |
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@staticmethod |
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def get_cloud_by_name(name): |
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"""Returns a dict with cloud info""" |
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return config.get('cloud', name)
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@staticmethod |
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def save_token(token): |
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"""Save this token to the configuration file""" |
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config = Config() |
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config.set('global', 'token', token)
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def save_cloud(name, url, token, description=""): |
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"""Save a new cloud account""" |
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cloud = {'url': url, 'token': token}
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if len(description): |
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cloud['description'] = description |
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config.set('cloud', name, cloud)
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# Make the saved cloud the default one |
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config.set('global', 'default_cloud', name)
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config.write() |
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@staticmethod |
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def get_account(token): |
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"""Return the account corresponding to this token""" |
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config = Config() |
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astakos = AstakosClient(config.get('user', 'url'), token)
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def remove_cloud(name): |
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"""Deletes an existing cloud from the Kamaki configuration file""" |
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config.remove_option('cloud', name)
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config.write() |
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@staticmethod |
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def create_account(url, token): |
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"""Given a valid (URL, tokens) pair this method returns an Astakos |
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client instance |
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""" |
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client = AstakosClient(url, token) |
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try: |
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account = astakos.info() |
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except ClientError as e: |
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if e.status == 401: # Unauthorized: invalid token |
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return None |
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else: |
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raise |
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return account |
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client.authenticate() |
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except ClientError: |
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return None |
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return client |
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@staticmethod |
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def get_account(cloud_name): |
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"""Given a saved cloud name this method returns an Astakos client |
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instance |
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""" |
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cloud = config.get('cloud', cloud_name)
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assert cloud, "cloud: `%s' does not exist" % cloud_name |
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assert 'url' in cloud, "url attr is missing in %s" % cloud_name |
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assert 'token' in cloud, "token attr is missing in %s" % cloud_name |
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return Kamaki.create_account(cloud['url'], cloud['token']) |
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def __init__(self, account, output): |
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"""Create a Kamaki instance""" |
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self.account = account |
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self.out = output |
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config = Config() |
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pithos_url = config.get('file', 'url')
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self.pithos_client = PithosClient( |
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pithos_url, self.account['auth_token'], self.account['uuid'], |
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self.pithos = PithosClient( |
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self.account.get_service_endpoints('object-store')['publicURL'],
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self.account.token, |
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self.account.user_info()['id'], |
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self.CONTAINER) |
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image_url = config.get('image', 'url')
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self.image_client = ImageClient(image_url, self.account['auth_token']) |
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self.image = ImageClient( |
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self.account.get_service_endpoints('image')['publicURL'],
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self.account.token) |
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def upload(self, file_obj, size=None, remote_path=None, hp=None, up=None): |
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"""Upload a file to pithos""" |
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path = basename(file_obj.name) if remote_path is None else remote_path |
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try: |
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self.pithos_client.create_container(self.CONTAINER)
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self.pithos.create_container(self.CONTAINER) |
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except ClientError as e: |
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if e.status != 202: # Ignore container already exists errors |
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raise e |
| ... | ... | |
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hash_cb = self.out.progress_generator(hp) if hp is not None else None |
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upload_cb = self.out.progress_generator(up) if up is not None else None |
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self.pithos_client.upload_object(path, file_obj, size, hash_cb, |
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upload_cb) |
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self.pithos.upload_object(path, file_obj, size, hash_cb, upload_cb) |
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return "pithos://%s/%s/%s" % (self.account['uuid'], self.CONTAINER,
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path) |
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return "pithos://%s/%s/%s" % (self.account.user_info()['id'],
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self.CONTAINER, path)
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def register(self, name, location, metadata, public=False): |
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"""Register an image to ~okeanos""" |
| ... | ... | |
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str_metadata[str(key)] = str(value) |
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is_public = 'true' if public else 'false' |
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params = {'is_public': is_public, 'disk_format': 'diskdump'}
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self.image_client.register(name, location, params, str_metadata)
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return self.image.register(name, location, params, str_metadata)
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def share(self, location): |
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"""Share this file with all the users""" |
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self.pithos_client.set_object_sharing(location, "*")
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self.pithos.set_object_sharing(location, "*") |
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def object_exists(self, location): |
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"""Check if an object exists in pythos""" |
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try: |
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self.pithos_client.get_object_info(location)
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self.pithos.get_object_info(location) |
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except ClientError as e: |
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if e.status == 404: # Object not found error |
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return False |
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