108 lines
3.3 KiB
Python
108 lines
3.3 KiB
Python
# Copyright 2010 Jacob Kaplan-Moss
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# Copyright 2013 IBM Corp.
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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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Image interface.
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"""
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from oslo.utils import encodeutils
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from oslo.utils import strutils
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from six.moves.urllib import parse
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from novaclient import base
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class Image(base.Resource):
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"""
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An image is a collection of files used to create or rebuild a server.
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"""
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HUMAN_ID = True
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def __repr__(self):
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return "<Image: %s>" % self.name
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def delete(self):
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"""
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Delete this image.
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"""
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self.manager.delete(self)
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class ImageManager(base.ManagerWithFind):
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"""
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Manage :class:`Image` resources.
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"""
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resource_class = Image
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# NOTE(cyeoh): Eventually we'll want novaclient to be smart
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# enough to do version discovery, but for now we just request
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# the v1 image API
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image_api_prefix = '/v1'
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def _image_meta_from_headers(self, headers):
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meta = {'properties': {}}
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safe_decode = encodeutils.safe_decode
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for key, value in headers.items():
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value = safe_decode(value, incoming='utf-8')
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if key.startswith('x-image-meta-property-'):
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_key = safe_decode(key[22:], incoming='utf-8')
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meta['properties'][_key] = value
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elif key.startswith('x-image-meta-'):
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_key = safe_decode(key[13:], incoming='utf-8')
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meta[_key] = value
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for key in ['is_public', 'protected', 'deleted']:
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if key in meta:
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meta[key] = strutils.bool_from_string(meta[key])
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return self._format_image_meta_for_user(meta)
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@staticmethod
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def _format_image_meta_for_user(meta):
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for key in ['size', 'min_ram', 'min_disk']:
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if key in meta:
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try:
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meta[key] = int(meta[key])
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except ValueError:
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pass
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return meta
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def get(self, image):
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"""
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Get an image.
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:param image: The ID of the image to get.
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:rtype: :class:`Image`
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"""
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url = "%s/images/%s" % (self.image_api_prefix, base.getid(image))
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resp, _ = self.api.client._cs_request(url, 'HEAD')
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foo = self._image_meta_from_headers(resp.headers)
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return Image(self, foo)
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def list(self, detailed=True, limit=None):
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"""
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Get a list of all images.
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:rtype: list of :class:`Image`
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:param limit: maximum number of images to return.
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"""
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params = {}
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detail = ''
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if detailed:
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detail = '/detail'
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if limit:
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params['limit'] = int(limit)
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query = '?%s' % parse.urlencode(params) if params else ''
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return self._list('/v1/images%s%s' % (detail, query), 'images')
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