152 lines
5.6 KiB
Python
152 lines
5.6 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 dcorch.common import consts
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from dcorch.common import exceptions
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from dcorch.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, endpoint_type, 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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endpoint_type=endpoint_type)
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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, user_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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TODO switch this over to using quotas API, support other resources.
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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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quota_usage = self.nova_client.quotas.get(
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project_id, user_id=user_id, detail=True)
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quota_usage_dict = quota_usage.to_dict()
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del quota_usage_dict['id']
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resource_usage = collections.defaultdict(dict)
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for resource in quota_usage_dict:
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# Don't need to add in "reserved" here, it will always be zero.
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resource_usage[resource] = quota_usage_dict[resource]['in_use']
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# For time being, keypair is calculated in below manner.
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# This is actually not correct for projects, as keypair quotas
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# apply to users only, and across all projects.
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resource_usage['key_pairs'] = \
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len(self.nova_client.keypairs.list(user_id=user_id))
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return resource_usage
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except exceptions.InternalError:
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raise
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def get_quota_limits(self, project_id, user_id):
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"""Collect resource limits for a given project.
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:params: project_id
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:return: dictionary of corresponding resources with its limit
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TODO: switch this over to using quotas API, support other resources.
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"""
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try:
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quotas = self.nova_client.quotas.get(
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project_id, user_id=user_id, detail=False)
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quotas_dict = quotas.to_dict()
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del quotas_dict['id']
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return quotas_dict
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except exceptions.InternalError:
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raise
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def update_quota_limits(self, project_id, user_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, user_id=user_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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