94 lines
3.4 KiB
Python
94 lines
3.4 KiB
Python
# Copyright (c) 2012 NTT DOCOMO, INC.
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# Copyright (c) 2011-2014 OpenStack Foundation
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# 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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"""
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Ironic host manager.
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This host manager will consume all cpu's, disk space, and
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ram from a host / node as it is supporting Baremetal hosts, which can not be
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subdivided into multiple instances.
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"""
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from oslo.config import cfg
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from nova.openstack.common import log as logging
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from nova.openstack.common import timeutils
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import nova.scheduler.base_baremetal_host_manager as bbhm
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from nova.scheduler import host_manager
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host_manager_opts = [
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cfg.ListOpt('baremetal_scheduler_default_filters',
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default=[
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'RetryFilter',
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'AvailabilityZoneFilter',
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'ComputeFilter',
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'ComputeCapabilitiesFilter',
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'ImagePropertiesFilter',
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'ExactRamFilter',
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'ExactDiskFilter',
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'ExactCoreFilter',
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],
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help='Which filter class names to use for filtering '
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'baremetal hosts when not specified in the request.'),
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cfg.BoolOpt('scheduler_use_baremetal_filters',
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default=False,
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help='Flag to decide whether to use '
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'baremetal_scheduler_default_filters or not.'),
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]
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CONF = cfg.CONF
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CONF.register_opts(host_manager_opts)
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LOG = logging.getLogger(__name__)
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class IronicNodeState(bbhm.BaseBaremetalNodeState):
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"""Mutable and immutable information tracked for a host.
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This is an attempt to remove the ad-hoc data structures
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previously used and lock down access.
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"""
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def update_from_compute_node(self, compute):
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"""Update information about a host from its compute_node info."""
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super(IronicNodeState, self).update_from_compute_node(compute)
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self.total_usable_disk_gb = compute['local_gb']
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self.updated = compute['updated_at']
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def consume_from_instance(self, context, instance):
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"""Consume nodes entire resources regardless of instance request."""
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super(IronicNodeState, self).consume_from_instance(context, instance)
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self.updated = timeutils.utcnow()
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class IronicHostManager(bbhm.BaseBaremetalHostManager):
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"""Ironic HostManager class."""
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def __init__(self):
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super(IronicHostManager, self).__init__()
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if CONF.scheduler_use_baremetal_filters:
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baremetal_default = CONF.baremetal_scheduler_default_filters
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CONF.scheduler_default_filters = baremetal_default
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def host_state_cls(self, host, node, **kwargs):
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"""Factory function/property to create a new HostState."""
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compute = kwargs.get('compute')
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if compute and compute.get('cpu_info') == 'baremetal cpu':
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return IronicNodeState(host, node, **kwargs)
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else:
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return host_manager.HostState(host, node, **kwargs)
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