249 lines
9.6 KiB
Python
249 lines
9.6 KiB
Python
# Copyright (c) 2014 Hewlett-Packard Development Company, L.P.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain 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,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
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# implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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from graffiti.api.model.v1.capability import Capability
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from graffiti.api.model.v1.resource import Resource
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from graffiti.common import exception
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from graffiti.drivers import base
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from novaclient.v1_1 import client
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from oslo.config import cfg
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class NovaResourceDriver(base.ResourceInterface):
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def __init__(self):
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super(NovaResourceDriver, self).__init__()
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self.separator = ":"
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self.service_type = 'compute'
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self.endpoint_type = 'publicURL'
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self.default_namespace = "OS::COMPUTE::CPU"
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self.default_resource_type = "OS::Nova::Flavor"
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self.default_extraspec_key = "capabilities:cpu_info"
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def get_resource(self, resource_type, resource_id, auth_token,
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endpoint_id=None, **kwargs):
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"""Retrieve the resource detail
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:param resource_type: resource_type set for this call
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:param resource_id: unique resource identifier
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:param auth_token: keystone auth_token of request user
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:param endpoint_id: id for locating the cloud resource provider
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:param **kwargs: Include additional info required by the driver,
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:returns resource detail
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"""
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nova_client = self.__get_nova_client(auth_token)
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flavor = nova_client.flavors.get(resource_id)
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flavor_resource = self.transform_flavor_to_resource(
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resource_type,
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flavor)
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return flavor_resource
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def update_resource(self, resource_type, resource_id, resource, auth_token,
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endpoint_id=None, **kwargs):
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"""Update resource
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:param resource_type: resource_type set for this call
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:param resource_id: unique resource identifier
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:param resource: resource detail
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:type param: graffiti.api.model.v1.resource.Resource
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:param auth_token: keystone auth_token of request user
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:param endpoint_id: id for locating the cloud resource provider
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:param **kwargs: Include additional info required by the driver,
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"""
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nova_client = self.__get_nova_client(auth_token)
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flavor = nova_client.flavors.get(resource_id)
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extraspecs = self.transform_resource_to_extraspecs(resource)
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flavor.set_keys(extraspecs)
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def find_resources(self, resource_query, auth_token,
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endpoint_id=None, **kwargs):
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"""Find resources matching the query
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:param query_string: query expression. Include resource type(s)
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:param auth_token: keystone auth_token of request user
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:param endpoint_id: id for locating the cloud resource provider
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:param **kwargs: Include additional info required by the driver,
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:returns list of resources
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"""
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resource_list = dict()
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if resource_query:
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nova_client = self.__get_nova_client(auth_token)
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flavors = list(nova_client.flavors.list())
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for flavor in flavors:
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flavor_resource = self.transform_flavor_to_resource(
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self.default_resource_type,
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flavor
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)
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resource_list[flavor_resource.id] = flavor_resource
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return resource_list
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def create_resource(self, resource_type, resource, auth_token,
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endpoint_id=None, **kwargs):
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"""Create resource
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:param resource_type: resource_type set for this call
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:param resource: resource detail
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:param auth_token: keystone auth_token of request user
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:param endpoint_id: id for locating the cloud resource provider
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:param **kwargs: Include additional info required by the driver,
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"""
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raise exception.MethodNotSupported(method="create_resource")
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def delete_resource(self, resource_type, resource_id, auth_token,
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endpoint_id=None, **kwargs):
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"""Delete resource
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:param resource_type: resource_type set for this call
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:param resource_id: unique resource identifier
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:param auth_token: keystone auth_token of request user
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:param endpoint_id: id for locating the cloud resource provider
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:param **kwargs: Include additional info required by the driver,
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"""
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raise exception.MethodNotSupported(method="delete_resource")
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def __get_nova_client(self, auth_token):
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auth_url = cfg.CONF.keystone.auth_url
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username = cfg.CONF.keystone.username
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password = cfg.CONF.keystone.password
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tenant_name = cfg.CONF.keystone.tenant_name
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nova_client = client.Client(
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username,
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password,
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tenant_name,
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auth_url,
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service_type="compute")
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return nova_client
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def transform_flavor_to_resource(self, resource_type, flavor):
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flavor_resource = Resource()
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flavor_resource.id = flavor.id
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flavor_resource.type = resource_type
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flavor_resource.name = flavor.name
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flavor_resource.capabilities = []
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flavor_resource.properties = {}
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flavor_resource.properties.update(
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{
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"ram": flavor.ram,
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"disk": flavor.disk,
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"vcpus": flavor.vcpus
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}
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)
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extra_spec_keys = flavor.get_keys()
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for key in extra_spec_keys:
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# capabilities:cpu_info:features=<in> aes
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# capabilities:cpu_info:vendor=Intel
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# capabilities:cpu_info:topology:cores=2
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# ssd = true
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# cap {ct:aes, properties {name:features, value:<in>aes}}
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# cap {ct:Intel, properties {name:vendor, value:Intel}}
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# cap {ct:cores, properties {name:topology:cores, value=2}}
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# cap {ct:sst, properties {name:ssd, value:true}}
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def splitFeatures(features):
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import re
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features = features.split()
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l = [v for v in features if not re.match("<(.*)>", v)]
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return l
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def extractFeatureValue(key, value):
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splited_key = key.split(':')
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splited_value = splitFeatures(value)
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c_name = splited_value[0]
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p_name = splited_key[-1]
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p_value = splited_value[0]
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return (c_name, p_name, p_value)
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def extractTopologyValue(key, value):
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splited = key.split(':')
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c_name = splited[-1]
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p_name = splited[-1]
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p_value = value
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return (c_name, p_name, p_value)
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def extractSimpleValue(key, value):
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splited = key.split(':')
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c_name = value
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p_name = splited[-1]
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p_value = value
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return (c_name, p_name, p_value)
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extraspecs_key_map = {
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"capabilities:cpu_info:features": extractFeatureValue,
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"capabilities:cpu_info:topology:cores": extractTopologyValue,
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"capabilities:cpu_info:topology:sockets": extractTopologyValue,
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"capabilities:cpu_info:topology:threads": extractTopologyValue,
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}
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capability_namespace = self.default_namespace
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capability_type = None
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property_name = None
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property_value = None
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if key in extraspecs_key_map:
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capability_type, property_name, property_value = \
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extraspecs_key_map[key](key, extra_spec_keys[key])
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else:
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capability_type, property_name, property_value = \
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extractSimpleValue(key, extra_spec_keys[key])
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capability_property = {property_name: property_value}
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flavor_capability = Capability()
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flavor_capability.properties = {}
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flavor_capability.capability_type_namespace = capability_namespace
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flavor_capability.capability_type = capability_type
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flavor_capability.properties.update(capability_property)
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flavor_resource.capabilities.append(flavor_capability)
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return flavor_resource
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def transform_resource_to_extraspecs(self, resource):
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extraspec = {}
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for capability in resource.capabilities:
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topology_properties = {
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"cores": "topology:cores",
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"threads": "topology:threads",
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"sockets": "topoloy:sockets",
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}
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base_key = ""
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if capability.capability_type_namespace == self.default_namespace:
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base_key = "capabilities:cpu_info"
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for property_name, property_value in capability.properties.items():
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if property_name == "features":
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key = base_key + ':' + property_name
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extraspec[key] = '<in> ' + property_value
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continue
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if property_name in topology_properties:
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key = base_key + ':' + topology_properties[property_name]
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extraspec[key] = property_value
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continue
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key = base_key + ':' + property_name
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extraspec[key] = property_value
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return extraspec
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