diff --git a/nimble/conf/scheduler.py b/nimble/conf/scheduler.py index 135fa0c7..2a76f23e 100644 --- a/nimble/conf/scheduler.py +++ b/nimble/conf/scheduler.py @@ -34,6 +34,7 @@ opts = [ cfg.ListOpt('scheduler_default_filters', default=[ 'AvailabilityZoneFilter', + 'InstanceTypeFilter', 'CapabilitiesFilter' ], help=_('Which filter class names to use for filtering nodes ' diff --git a/nimble/engine/scheduler/filters/instance_type_filter.py b/nimble/engine/scheduler/filters/instance_type_filter.py new file mode 100644 index 00000000..1fc0ec08 --- /dev/null +++ b/nimble/engine/scheduler/filters/instance_type_filter.py @@ -0,0 +1,32 @@ +# Copyright 2016 Huawei Technologies Co.,LTD. +# All Rights Reserved. +# +# 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. + +from nimble.engine.scheduler import filters + + +class InstanceTypeFilter(filters.BaseNodeFilter): + """Filters Nodes by instance type.""" + + # Instance types do not change within a request + run_filter_once_per_request = True + + def node_passes(self, node_state, filter_properties): + spec = filter_properties.get('request_spec', {}) + instance_type = spec.get('instance_type', {}) + type_name = instance_type.get('name') + + if type_name: + return type_name == node_state.instance_type + return True diff --git a/setup.cfg b/setup.cfg index 3206b29b..0ef3923a 100644 --- a/setup.cfg +++ b/setup.cfg @@ -27,6 +27,7 @@ packages = [entry_points] nimble.engine.scheduler.filters = AvailabilityZoneFilter = nimble.engine.scheduler.filters.availability_zone_filter:AvailabilityZoneFilter + InstanceTypeFilter = nimble.engine.scheduler.filters.instance_type_filter:InstanceTypeFilter CapabilitiesFilter = nimble.engine.scheduler.filters.capabilities_filter:CapabilitiesFilter JsonFilter = nimble.engine.scheduler.filters.json_filter:JsonFilter