bilean/bilean/plugins/os/nova/server.py

132 lines
3.9 KiB
Python

# 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 six
from oslo_log import log as logging
from bilean.common import exception
from bilean.common.i18n import _
from bilean.common.i18n import _LE
from bilean.common import schema
from bilean.db import api as db_api
from bilean.drivers import base as driver_base
from bilean.plugins import base
LOG = logging.getLogger(__name__)
class ServerRule(base.Rule):
'''Rule for an OpenStack Nova server.'''
KEYS = (
PRICE_MAPPING, UNIT,
) = (
'price_mapping', 'unit',
)
PM_KEYS = (
FLAVOR, PRICE,
) = (
'flavor', 'price',
)
AVAILABLE_UNIT = (
PER_HOUR, PER_SEC,
) = (
'per_hour', 'per_sec',
)
properties_schema = {
PRICE_MAPPING: schema.List(
_('A list specifying the price of each flavor'),
schema=schema.Map(
_('A map specifying the pricce of a flavor.'),
schema={
FLAVOR: schema.String(
_('Flavor id to set price.'),
),
PRICE: schema.Integer(
_('Price of this flavor.'),
),
}
),
required=True,
updatable=True,
),
UNIT: schema.String(
_('Unit of price, per_hour or per_sec.'),
default='per_hour',
),
}
def get_price(self, resource):
'''Get the price of resource in seconds.
If no exact price found, it shows that rule of the server's flavor
has not been set, will return 0 as the price notify admin to set
it.
:param: resource: Resource object to find price.
'''
flavor = resource.properties.get('flavor')
if not flavor:
raise exception.Error(msg='Flavor should be provided to get '
'the price of server.')
p_mapping = self.properties.get(self.PRICE_MAPPING)
price = 0
for pm in p_mapping:
if flavor == pm.get(self.FLAVOR):
price = pm.get(self.PRICE)
if self.PER_HOUR == self.properties.get(self.UNIT) and price > 0:
price = price * 1.0 / 3600
return price
class ServerResource(base.Resource):
'''Resource for an OpenStack Nova server.'''
@classmethod
def do_check(context, user):
'''Communicate with other services and check user's resources.
This would be a period job of user to check if there are any missing
actions, and then make correction.
'''
# TODO(ldb)
return NotImplemented
def do_delete(self, context, ignore_missing=True, timeout=None):
'''Delete resource from other services.'''
# Delete resource from db
db_api.resource_delete(context, self.id)
# Delete resource from nova
novaclient = driver_base.BileanDriver().compute()
try:
novaclient.server_delete(self.id, ignore_missing=ignore_missing)
novaclient.wait_for_server_delete(self.id, timeout=timeout)
except Exception as ex:
LOG.error(_LE('Error: %s'), six.text_type(ex))
return False
return True
class ServerPlugin(base.Plugin):
'''Plugin for Openstack Nova server.'''
RuleClass = ServerRule
ResourceClass = ServerResource
notification_exchanges = ['nova']