nova/nova/cells/opts.py

68 lines
2.4 KiB
Python

# Copyright (c) 2012 Rackspace Hosting
#
# 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.
"""
Global cells config options
"""
from oslo_config import cfg
cells_opts = [
cfg.BoolOpt('enable',
default=False,
help='Enable cell functionality'),
cfg.StrOpt('topic',
default='cells',
help='The topic cells nodes listen on'),
cfg.StrOpt('manager',
default='nova.cells.manager.CellsManager',
help='Manager for cells'),
cfg.StrOpt('name',
default='nova',
help='Name of this cell'),
cfg.ListOpt('capabilities',
default=['hypervisor=xenserver;kvm', 'os=linux;windows'],
help='Key/Multi-value list with the capabilities of the cell'),
cfg.IntOpt('call_timeout',
default=60,
help='Seconds to wait for response from a call to a cell.'),
cfg.FloatOpt('reserve_percent',
default=10.0,
help='Percentage of cell capacity to hold in reserve. '
'Affects both memory and disk utilization'),
cfg.StrOpt('cell_type',
default='compute',
help='Type of cell: api or compute'),
cfg.IntOpt("mute_child_interval",
default=300,
help='Number of seconds after which a lack of capability and '
'capacity updates signals the child cell is to be '
'treated as a mute.'),
cfg.IntOpt('bandwidth_update_interval',
default=600,
help='Seconds between bandwidth updates for cells.'),
]
CONF = cfg.CONF
CONF.register_opts(cells_opts, group='cells')
def get_cell_type():
"""Return the cell type, 'api', 'compute', or None (if cells is disabled).
"""
if not CONF.cells.enable:
return
return CONF.cells.cell_type