143 lines
6.0 KiB
Python
143 lines
6.0 KiB
Python
# Copyright (c) 2014 VMware, Inc. 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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from __future__ import print_function
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from __future__ import division
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from __future__ import absolute_import
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import glanceclient.v2.client as glclient
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from oslo_log import log as logging
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from congress.datasources import constants
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from congress.datasources import datasource_driver
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from congress.datasources import datasource_utils as ds_utils
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LOG = logging.getLogger(__name__)
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class GlanceV2Driver(datasource_driver.PollingDataSourceDriver,
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datasource_driver.ExecutionDriver):
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IMAGES = "images"
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TAGS = "tags"
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value_trans = {'translation-type': 'VALUE'}
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images_translator = {
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'translation-type': 'HDICT',
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'table-name': IMAGES,
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'selector-type': 'DICT_SELECTOR',
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'field-translators':
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({'fieldname': 'id', 'desc': 'UUID of image',
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'translator': value_trans},
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{'fieldname': 'status', 'desc': 'The image status',
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'translator': value_trans},
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{'fieldname': 'name',
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'desc': 'Image Name', 'translator': value_trans},
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{'fieldname': 'container_format',
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'desc': 'The container format of image',
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'translator': value_trans},
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{'fieldname': 'created_at',
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'desc': 'The date and time when the resource was created',
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'translator': value_trans},
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{'fieldname': 'updated_at',
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'desc': 'The date and time when the resource was updated.',
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'translator': value_trans},
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{'fieldname': 'disk_format',
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'desc': 'The disk format of the image.',
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'translator': value_trans},
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{'fieldname': 'owner',
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'desc': 'The ID of the owner or tenant of the image',
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'translator': value_trans},
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{'fieldname': 'protected',
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'desc': 'Indicates whether the image can be deleted.',
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'translator': value_trans},
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{'fieldname': 'min_ram',
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'desc': 'minimum amount of RAM in MB required to boot the image',
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'translator': value_trans},
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{'fieldname': 'min_disk',
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'desc': 'minimum disk size in GB required to boot the image',
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'translator': value_trans},
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{'fieldname': 'checksum', 'desc': 'Hash of the image data used',
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'translator': value_trans},
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{'fieldname': 'size',
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'desc': 'The size of the image data, in bytes.',
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'translator': value_trans},
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{'fieldname': 'file',
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'desc': 'URL for the virtual machine image file',
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'translator': value_trans},
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{'fieldname': 'kernel_id', 'desc': 'kernal id',
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'translator': value_trans},
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{'fieldname': 'ramdisk_id', 'desc': 'ramdisk id',
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'translator': value_trans},
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{'fieldname': 'schema',
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'desc': 'URL for schema of the virtual machine image',
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'translator': value_trans},
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{'fieldname': 'visibility', 'desc': 'The image visibility',
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'translator': value_trans},
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{'fieldname': 'tags',
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'translator': {'translation-type': 'LIST',
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'table-name': TAGS,
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'val-col': 'tag',
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'val-col-desc': 'List of image tags',
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'parent-key': 'id',
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'parent-col-name': 'image_id',
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'parent-key-desc': 'UUID of image',
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'translator': value_trans}})}
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TRANSLATORS = [images_translator]
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def __init__(self, name='', args=None):
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super(GlanceV2Driver, self).__init__(name, args=args)
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datasource_driver.ExecutionDriver.__init__(self)
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self.creds = args
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session = ds_utils.get_keystone_session(self.creds)
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self.glance = glclient.Client(session=session)
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self.add_executable_client_methods(self.glance, 'glanceclient.v2.')
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self.initialize_update_methods()
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self._init_end_start_poll()
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@staticmethod
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def get_datasource_info():
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result = {}
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result['id'] = 'glancev2'
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result['description'] = ('Datasource driver that interfaces with '
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'OpenStack Images aka Glance.')
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result['config'] = ds_utils.get_openstack_required_config()
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result['config']['lazy_tables'] = constants.OPTIONAL
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result['secret'] = ['password']
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return result
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def initialize_update_methods(self):
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images_method = lambda: self._translate_images(
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{'images': self.glance.images.list()})
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self.add_update_method(images_method, self.images_translator)
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@ds_utils.update_state_on_changed(IMAGES)
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def _translate_images(self, obj):
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"""Translate the images represented by OBJ into tables."""
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LOG.debug("IMAGES: %s", str(dict(obj)))
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row_data = GlanceV2Driver.convert_objs(
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obj['images'], GlanceV2Driver.images_translator)
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return row_data
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def execute(self, action, action_args):
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"""Overwrite ExecutionDriver.execute()."""
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# action can be written as a method or an API call.
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func = getattr(self, action, None)
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if func and self.is_executable(func):
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func(action_args)
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else:
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self._execute_api(self.glance, action, action_args)
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