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# Copyright (c) 2017 Cable Television Laboratories, Inc. ("CableLabs")
# and others. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at:
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import logging
from magnumclient.common.apiclient.exceptions import NotFound
from snaps.openstack.openstack_creator import OpenStackMagnumObject
from snaps.openstack.utils import magnum_utils
__author__ = 'spisarski'
logger = logging.getLogger('cluster_template')
class OpenStackClusterTemplate(OpenStackMagnumObject):
"""
Class responsible for managing an volume in OpenStack
"""
def __init__(self, os_creds, cluster_template_config):
"""
Constructor
:param os_creds: The OpenStack connection credentials
:param cluster_template_config: The volume type settings
:return:
"""
super(self.__class__, self).__init__(os_creds)
self.cluster_template_config = cluster_template_config
self.__cluster_template = None
def initialize(self):
"""
Loads the existing Volume
:return: The Volume domain object or None
"""
super(self.__class__, self).initialize()
self.__cluster_template = magnum_utils.get_cluster_template(
self._magnum, template_config=self.cluster_template_config)
return self.__cluster_template
def create(self):
"""
Creates the volume in OpenStack if it does not already exist and
returns the domain Volume object
:return: The Volume domain object or None
"""
self.initialize()
if not self.__cluster_template:
self.__cluster_template = magnum_utils.create_cluster_template(
self._magnum, self.cluster_template_config)
logger.info(
'Created volume type with name - %s',
self.cluster_template_config.name)
return self.__cluster_template
def clean(self):
"""
Cleanse environment of all artifacts
:return: void
"""
if self.__cluster_template:
try:
magnum_utils.delete_cluster_template(
self._magnum, self.__cluster_template.id)
except NotFound:
pass
self.__cluster_template = None
def get_cluster_template(self):
"""
Returns the domain Volume object as it was populated when create() was
called
:return: the object
"""
return self.__cluster_template
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