70 lines
2.4 KiB
Python
70 lines
2.4 KiB
Python
# 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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from openstack import exceptions
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from openstack import resource
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from openstack import utils
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class CachedImage(resource.Resource):
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image_id = resource.Body('image_id')
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hits = resource.Body('hits')
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last_accessed = resource.Body('last_accessed')
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last_modified = resource.Body('last_modified')
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size = resource.Body('size')
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class Cache(resource.Resource):
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base_path = '/cache'
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allow_fetch = True
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allow_delete = True
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allow_create = True
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_max_microversion = '2.14'
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cached_images = resource.Body(
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'cached_images',
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type=list,
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list_type=CachedImage,
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)
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queued_images = resource.Body('queued_images', type=list)
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def queue(self, session, image, *, microversion=None):
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"""Queue an image into cache.
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:param session: The session to use for making this request
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:param image: The image to be queued into cache.
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:returns: The server response
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"""
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if microversion is None:
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microversion = self._get_microversion(session, action='commit')
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image_id = resource.Resource._get_id(image)
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url = utils.urljoin(self.base_path, image_id)
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response = session.put(url, microversion=microversion)
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exceptions.raise_from_response(response)
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return response
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def clear(self, session, target='both'):
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"""Clears the cache.
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:param session: The session to use for making this request
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:param target: Specify which target you want to clear
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One of: ``both``(default), ``cache``, ``queue``.
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:returns: The server response
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"""
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headers = {}
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if target != "both":
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headers = {'x-image-cache-clear-target': target}
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response = session.delete(self.base_path, headers=headers)
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exceptions.raise_from_response(response)
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return response
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