134 lines
4.2 KiB
Python
134 lines
4.2 KiB
Python
# Copyright 2012 OpenStack LLC.
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# 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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import urllib
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from heatclient.common import base
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DEFAULT_PAGE_SIZE = 20
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class Stack(base.Resource):
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def __repr__(self):
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return "<Stack %s>" % self._info
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def update(self, **fields):
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self.manager.update(self, **fields)
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def delete(self):
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return self.manager.delete(self)
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def data(self, **kwargs):
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return self.manager.data(self, **kwargs)
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class StackManager(base.Manager):
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resource_class = Stack
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def list(self, **kwargs):
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"""Get a list of stacks.
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:param page_size: number of items to request in each paginated request
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:param limit: maximum number of stacks to return
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:param marker: begin returning stacks that appear later in the stack
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list than that represented by this stack id
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:param filters: dict of direct comparison filters that mimics the
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structure of a stack object
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:rtype: list of :class:`Stack`
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"""
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absolute_limit = kwargs.get('limit')
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def paginate(qp, seen=0):
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url = '/stacks?%s' % urllib.urlencode(qp)
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stacks = self._list(url, "stacks")
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for stack in stacks:
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seen += 1
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if absolute_limit is not None and seen > absolute_limit:
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return
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yield stack
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page_size = qp.get('limit')
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if (page_size and len(stacks) == page_size and
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(absolute_limit is None or 0 < seen < absolute_limit)):
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qp['marker'] = stack.id
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for image in paginate(qp, seen):
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yield image
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params = {'limit': kwargs.get('page_size', DEFAULT_PAGE_SIZE)}
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if 'marker' in kwargs:
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params['marker'] = kwargs['marker']
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filters = kwargs.get('filters', {})
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properties = filters.pop('properties', {})
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for key, value in properties.items():
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params['property-%s' % key] = value
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params.update(filters)
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return paginate(params)
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def create(self, **kwargs):
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"""Create a stack."""
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resp, body = self.api.json_request(
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'POST', '/stacks', body=kwargs)
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def update(self, **kwargs):
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"""Update a stack."""
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stack_id = kwargs.pop('stack_id')
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resp, body = self.api.json_request(
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'PUT', '/stacks/%s' % stack_id, body=kwargs)
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def delete(self, stack_id):
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"""Delete a stack."""
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self._delete("/stacks/%s" % stack_id)
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def get(self, stack_id):
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"""Get the metadata for a specific stack.
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:param stack_id: Stack ID to lookup
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"""
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resp, body = self.api.json_request('GET', '/stacks/%s' % stack_id)
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return Stack(self, body['stack'])
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def template(self, stack_id):
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"""Get the template content for a specific stack as a parsed JSON
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object.
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:param stack_id: Stack ID to get the template for
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"""
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resp, body = self.api.json_request(
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'GET', '/stacks/%s/template' % stack_id)
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return body
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def validate(self, **kwargs):
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"""Validate a stack template."""
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resp, body = self.api.json_request(
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'POST', '/validate', body=kwargs)
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return body
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class StackChildManager(base.Manager):
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def _resolve_stack_id(self, stack_id):
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# if the id already has a slash in it,
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# then it is already {stack_name}/{stack_id}
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if stack_id.find('/') > 0:
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return stack_id
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resp, body = self.api.json_request('GET',
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'/stacks/%s' % stack_id)
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stack = body['stack']
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return '%s/%s' % (stack['stack_name'], stack['id'])
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