209 lines
8.3 KiB
Python
209 lines
8.3 KiB
Python
# Copyright 2016 Ericsson AB
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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 collections
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from oslo_log import log
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from kingbird.common import consts
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from kingbird.common import exceptions
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from kingbird.drivers import base
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from novaclient import client
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LOG = log.getLogger(__name__)
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API_VERSION = '2.37'
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class NovaClient(base.DriverBase):
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"""Nova V2.37 driver."""
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def __init__(self, region, session, disabled_quotas=None):
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try:
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self.nova_client = client.Client(API_VERSION,
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session=session,
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region_name=region)
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if disabled_quotas:
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self.enabled_quotas = list(set(consts.NOVA_QUOTA_FIELDS) -
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set(disabled_quotas))
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self.no_neutron = True if 'floatingips' in self.enabled_quotas \
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or 'fixedips' in self.enabled_quotas else False
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except exceptions.ServiceUnavailable:
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raise
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def get_resource_usages(self, project_id):
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"""Collect resource usages for a given project.
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:params: project_id
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:return: dictionary of corresponding resources with its usage
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"""
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try:
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# The API call does not give usage for keypair, fixed ips &
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# metadata items. Have raised a bug for that.
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limits = self.nova_client.limits.get(
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tenant_id=project_id).to_dict()
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resource_usage = collections.defaultdict(dict)
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resource_usage['ram'] = limits['absolute']['totalRAMUsed']
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resource_usage['cores'] = limits['absolute']['totalCoresUsed']
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resource_usage['instances'] = \
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limits['absolute']['totalInstancesUsed']
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# If neutron is not enabled, calculate below resources from nova
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if self.no_neutron:
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resource_usage['security_groups'] = \
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limits['absolute']['totalSecurityGroupsUsed']
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resource_usage['floating_ips'] = \
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limits['absolute']['totalFloatingIpsUsed']
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# For time being, keypair is calculated in below manner.
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resource_usage['key_pairs'] = \
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len(self.nova_client.keypairs.list())
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return resource_usage
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except exceptions.InternalError:
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raise
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def update_quota_limits(self, project_id, **new_quota):
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"""Update quota limits for a given project.
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:params: project_id, dictionary with the quota limits to update
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:return: Nothing
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"""
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try:
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if not self.no_neutron:
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if 'floating_ips' in new_quota:
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del new_quota['floating_ips']
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if 'fixed_ips' in new_quota:
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del new_quota['fixed_ips']
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if 'security_groups' in new_quota:
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del new_quota['security_groups']
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return self.nova_client.quotas.update(project_id,
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**new_quota)
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except exceptions.InternalError:
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raise
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def delete_quota_limits(self, project_id):
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"""Delete/Reset quota limits for a given project.
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:params: project_id
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:return: Nothing
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"""
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try:
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return self.nova_client.quotas.delete(project_id)
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except exceptions.InternalError:
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raise
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def get_keypairs(self, res_id):
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"""Display keypair of the specified User.
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:params: resource_identifier
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:return: Keypair
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"""
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try:
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keypair = self.nova_client.keypairs.get(res_id)
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LOG.info("Source Keypair: %s", keypair.name)
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return keypair
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except Exception as exception:
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LOG.error('Exception Occurred: %s', exception.message)
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pass
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def create_keypairs(self, force, keypair):
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"""Create keypair for the specified User.
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:params: keypair, force
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:return: Creates a Keypair
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"""
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if force:
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try:
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self.nova_client.keypairs.delete(keypair)
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LOG.info("Deleted Keypair: %s", keypair.name)
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except Exception as exception:
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LOG.error('Exception Occurred: %s', exception.message)
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pass
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LOG.info("Created Keypair: %s", keypair.name)
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return self.nova_client.keypairs. \
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create(keypair.name,
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public_key=keypair.public_key)
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def get_flavor(self, res_id):
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"""Get Flavor for a specified context."""
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try:
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res_id = self.nova_client.flavors.find(name=res_id)
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flavor = self.nova_client.flavors.get(res_id)
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LOG.info("Source Flavor: %s", flavor.name)
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return flavor
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except exceptions.ResourceNotFound():
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LOG.error('Exception Occurred: Source Flavor %s not available',
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res_id)
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def get_flavor_access_tenant(self, res_id):
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"""Get tenant which has access to the Flavor."""
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try:
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access_tenants = [access.tenant_id for access in
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self.nova_client.
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flavor_access.list(flavor=res_id)]
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LOG.info("Access to only : %s", access_tenants)
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return access_tenants
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except exceptions.InternalError():
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LOG.error('Exception Occurred couldnot find access tenants.')
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pass
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def check_and_delete_flavor_in_target_region(self, flavor,
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resource_flavor):
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"""Check for the flavor and then delete it."""
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try:
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target_flavor = self.nova_client.flavors.get(flavor.id)
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if target_flavor:
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resource_flavor.pop("flavorid", None)
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flavor_list = self.nova_client.flavors.list(is_public=None)
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for target_region_flavor in flavor_list:
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if target_region_flavor.name == flavor.name:
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self.nova_client.flavors.delete(
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target_region_flavor.id)
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LOG.info("Deleted Flavor: %s", flavor.name)
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break
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except Exception:
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LOG.error('Exception Occurred: %s not available', flavor.id)
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pass
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def create_flavor(self, force, flavor, access_tenants=None):
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"""Create Flavor in target regions."""
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resource_flavor = flavor._info.copy()
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resource_flavor.update({'flavorid': resource_flavor['id']})
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resource_flavor.pop("links", None)
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resource_flavor.pop("OS-FLV-DISABLED:disabled", None)
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resource_flavor["ephemeral"] = resource_flavor[
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"OS-FLV-EXT-DATA:ephemeral"]
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resource_flavor.pop("OS-FLV-EXT-DATA:ephemeral", None)
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resource_flavor.pop("os-flavor-access:is_public", None)
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resource_flavor.pop("id", None)
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if not resource_flavor['swap']:
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resource_flavor.pop("swap", None)
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if not flavor.is_public:
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resource_flavor.update({'is_public': False})
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if force:
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self.check_and_delete_flavor_in_target_region(
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flavor, resource_flavor)
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target_flavor = self.nova_client.flavors.create(**resource_flavor)
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target_flavor_properties = flavor.get_keys()
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if target_flavor_properties:
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try:
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target_flavor.set_keys(target_flavor_properties)
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except Exception as e:
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LOG.error(_("Failed to set flavor property: %s"), e)
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if access_tenants:
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for tenant in access_tenants:
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self.nova_client.flavor_access.add_tenant_access(
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target_flavor.id, tenant)
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LOG.info('%(flavor)s Access Granted to %(tenant)s'
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% {'flavor': target_flavor.name, 'tenant': tenant})
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return target_flavor
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