351abc2c2e
1. Reduce to only use 2 channels for bi-direction communication; 2. Use metadata services to pass orchestration information; 3. Decouple VM creation from other resources; 4. Fix traceback during failure cleanup; Change-Id: Ie8d00bedc7d7c148dc7f7a6eec9b5eb8747b514d
114 lines
4.2 KiB
Python
114 lines
4.2 KiB
Python
# Copyright 2015 Cisco Systems, Inc. All rights reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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import keystoneclient.openstack.common.apiclient.exceptions as keystone_exception
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import log as logging
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import users
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LOG = logging.getLogger(__name__)
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class Tenant(object):
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"""
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Holds the tenant resources
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1. Provides ability to create users in a tenant
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2. Uses the User class to perform all user resource creation and deletion
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"""
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def __init__(self, tenant_name, kloud):
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"""
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Holds the tenant name
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tenant id and keystone client
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Also stores the auth_url for constructing credentials
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Stores the shared network in case of testing and
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tested cloud being on same cloud
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"""
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self.tenant_name = tenant_name
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self.kloud = kloud
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self.tenant_object = self._get_tenant()
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self.tenant_id = self.tenant_object.id
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# Contains a list of user instance objects
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self.user_list = []
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def _get_tenant(self):
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'''
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Create or reuse a tenant object of a given name
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'''
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try:
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LOG.info("Creating tenant: " + self.tenant_name)
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self.tenant_object = \
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self.kloud.keystone.tenants.create(tenant_name=self.tenant_name,
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description="KloudBuster tenant",
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enabled=True)
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except keystone_exception.Conflict as exc:
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# ost likely the entry already exists:
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# Conflict: Conflict occurred attempting to store project - Duplicate Entry (HTTP 409)
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if exc.http_status != 409:
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raise exc
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LOG.info("Tenant %s already present, reusing it" % self.tenant_name)
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# It is a hassle to find a tenant by name as the only way seems to retrieve
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# the list of all tenants which can be very large
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tenant_list = self.kloud.keystone.tenants.list()
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for tenant in tenant_list:
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if tenant.name == self.tenant_name:
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return tenant
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# Should never come here
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raise Exception("Tenant not found")
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def create_resources(self):
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"""
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Creates all the entities associated with
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a user offloads tasks to user class
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"""
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# Loop over the required number of users and create resources
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for user_count in xrange(self.kloud.scale_cfg['users_per_tenant']):
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user_name = self.tenant_name + "-U" + str(user_count)
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user_instance = users.User(user_name,
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self,
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self.kloud.scale_cfg['keystone_admin_role'])
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# Global list with all user instances
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self.user_list.append(user_instance)
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# Now create the user resources like routers which inturn trigger network and
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# vm creation
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user_instance.create_resources()
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def get_first_network(self):
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if self.user_list:
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return self.user_list[0].get_first_network()
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return None
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def get_all_instances(self):
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all_instances = []
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for user in self.user_list:
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all_instances.extend(user.get_all_instances())
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return all_instances
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def get_prefix(self):
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return self.kloud.get_prefix() + '_' + self.prefix
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def delete_resources(self):
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"""
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Delete all user resources and than
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deletes the tenant
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"""
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# Delete all the users in the tenant along with network and compute elements
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for user in self.user_list:
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user.delete_resources()
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# Delete the tenant (self)
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self.kloud.keystone.tenants.delete(self.tenant_id)
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