233 lines
9.4 KiB
Python
233 lines
9.4 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 glanceclient import Client
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from graffiti.api.model.v1.capability import Capability
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from graffiti.api.model.v1.property import Property
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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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import keystoneclient.v2_0.client as ksclient
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from oslo.config import cfg
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class GlanceResourceDriver(base.ResourceInterface):
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def __init__(self):
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super(GlanceResourceDriver, self).__init__()
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self.separator = "."
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self.service_type = 'image'
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self.endpoint_type = 'publicURL'
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self.default_namespace_postfix = "::Default"
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self.unknown_properties_type = "AdditionalProperties"
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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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# glance_image_properties = {
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# "GLANCE.MySQL.Port": "3605",
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# "GLANCE.MySQL.Home": "/opt/mysql",
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# "GLANCE.Apache.Port": "8080",
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# "GLANCE.Apache.docroot": "/var/apache/static"
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# }
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glance_client = self.__get_glance_client(endpoint_id, auth_token)
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image = glance_client.images.get(resource_id)
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image_resource = self.transform_image_to_resource(resource_type, image)
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return image_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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glance_client = self.__get_glance_client(endpoint_id, auth_token)
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image_properties = {}
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for capability in resource.capabilities:
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if capability.capability_type_namespace \
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== resource_type + self.default_namespace_postfix \
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and capability.capability_type \
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== self.unknown_properties_type:
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# For unknown properties, just directly set property name.
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for property_name, property_value in \
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capability.properties.iteritems():
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image_properties[property_name] = property_value
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else:
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properties = capability.properties
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capability_type = self.replace_colon_from_name(
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capability.capability_type
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)
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capability_type_namespace = self.replace_colon_from_name(
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capability.capability_type_namespace
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)
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for property_name, property_value in properties.iteritems():
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prop_name = capability_type_namespace + \
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self.separator + \
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capability_type + \
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self.separator + \
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self.replace_colon_from_name(property_name)
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image_properties[prop_name] = property_value
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image = glance_client.images.get(resource.id)
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image.update(properties=image_properties, purge_props=False)
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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 resource_query: query object. Includes 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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glance_client = self.__get_glance_client(endpoint_id, auth_token)
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images = glance_client.images.list()
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for image in list(images):
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resource = self.transform_image_to_resource(
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self.default_resource_type,
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image
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)
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resource_list[resource.id] = 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_glance_client(self, endpoint_id, auth_token):
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keystone = ksclient.Client(
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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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)
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glance_public_url = None
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if endpoint_id:
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for entry in keystone.service_catalog.catalog.get(
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'serviceCatalog'):
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for endpoint in entry['endpoints']:
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if endpoint['id'] == endpoint_id:
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glance_public_url = endpoint['publicURL']
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break
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if glance_public_url:
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break
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else:
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glance_public_url = keystone.service_catalog.url_for(
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service_type=self.service_type,
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endpoint_type=self.endpoint_type
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)
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glance_client = Client(
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'1',
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endpoint=glance_public_url,
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token=auth_token
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)
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return glance_client
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def transform_image_to_resource(self, resource_type, image):
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glance_image_properties = image.properties
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image_resource = Resource()
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image_capabilities = []
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image_resource.capabilities = image_capabilities
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image_resource.id = image.id
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image_resource.type = resource_type
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image_resource.name = image.name
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for key in glance_image_properties:
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if key.count(self.separator) == 2:
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(namespace, capability_type, prop_name) = key.split(".")
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namespace = self.replace_hash_from_name(namespace)
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capability_type = self.replace_hash_from_name(capability_type)
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prop_name = self.replace_hash_from_name(prop_name)
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else:
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namespace = resource_type + self.default_namespace_postfix
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capability_type = self.unknown_properties_type
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prop_name = key
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image_property = Property()
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image_property.name = prop_name
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image_property.value = glance_image_properties[key]
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image_capability = None
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for capability in image_resource.capabilities:
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if capability.capability_type_namespace == namespace and \
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capability.capability_type == capability_type:
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image_capability = capability
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if not image_capability:
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image_capability = Capability()
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image_capability.properties = {}
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image_resource.capabilities.append(image_capability)
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image_capability.capability_type_namespace = namespace
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image_capability.capability_type = capability_type
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image_capability.properties[image_property.name] = \
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image_property.value
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return image_resource
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def replace_colon_from_name(self, name):
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if name:
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return name.replace(':', '#')
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return
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def replace_hash_from_name(self, name):
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if name:
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return name.replace('#', ':')
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return
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