325 lines
12 KiB
Python
325 lines
12 KiB
Python
# Copyright 2013 UnitedStack Inc.
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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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from oslo_utils import timeutils
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import pecan
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from pecan import rest
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import wsme
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from wsme import types as wtypes
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from magnum.api.controllers import base
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from magnum.api.controllers import link
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from magnum.api.controllers.v1 import collection
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from magnum.api.controllers.v1 import types
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from magnum.api.controllers.v1 import utils as api_utils
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from magnum.api import expose
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from magnum.common import exception
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from magnum.common import policy
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from magnum import objects
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class BayPatchType(types.JsonPatchType):
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@staticmethod
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def mandatory_attrs():
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return ['/baymodel_id']
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@staticmethod
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def internal_attrs():
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internal_attrs = ['/api_address', '/node_addresses',
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'/master_addresses', '/stack_id',
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'/ca_cert_ref', '/magnum_cert_ref']
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return types.JsonPatchType.internal_attrs() + internal_attrs
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class Bay(base.APIBase):
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"""API representation of a bay.
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This class enforces type checking and value constraints, and converts
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between the internal object model and the API representation of a bay.
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"""
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_baymodel_id = None
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def _get_baymodel_id(self):
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return self._baymodel_id
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def _set_baymodel_id(self, value):
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if value and self._baymodel_id != value:
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try:
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baymodel = api_utils.get_rpc_resource('BayModel', value)
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self._baymodel_id = baymodel.uuid
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except exception.BayModelNotFound as e:
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# Change error code because 404 (NotFound) is inappropriate
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# response for a POST request to create a Bay
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e.code = 400 # BadRequest
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raise e
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elif value == wtypes.Unset:
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self._baymodel_id = wtypes.Unset
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uuid = types.uuid
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"""Unique UUID for this bay"""
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name = wtypes.StringType(min_length=1, max_length=255)
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"""Name of this bay"""
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baymodel_id = wsme.wsproperty(wtypes.text, _get_baymodel_id,
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_set_baymodel_id, mandatory=True)
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"""The bay model UUID or id"""
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node_count = wsme.wsattr(wtypes.IntegerType(minimum=1), default=1)
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"""The node count for this bay. Set to 1 for no node_count"""
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master_count = wsme.wsattr(wtypes.IntegerType(minimum=1), default=1)
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"""The number of master nodes for this bay. Set to 1 for no master_count"""
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bay_create_timeout = wsme.wsattr(wtypes.IntegerType(minimum=0), default=0)
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"""Timeout for creating the bay in minutes. Set to 0 for no timeout."""
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links = wsme.wsattr([link.Link], readonly=True)
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"""A list containing a self link and associated bay links"""
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status = wtypes.text
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"""Status of the bay from the heat stack"""
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status_reason = wtypes.text
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"""Status reason of the bay from the heat stack"""
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discovery_url = wtypes.text
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"""Url used for bay node discovery"""
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api_address = wsme.wsattr(wtypes.text, readonly=True)
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"""Api address of cluster master node"""
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node_addresses = wsme.wsattr([wtypes.text], readonly=True)
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"""Ip addresses of cluster slave nodes"""
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def __init__(self, **kwargs):
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super(Bay, self).__init__()
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self.fields = []
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for field in objects.Bay.fields:
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# Skip fields we do not expose.
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if not hasattr(self, field):
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continue
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self.fields.append(field)
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setattr(self, field, kwargs.get(field, wtypes.Unset))
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@staticmethod
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def _convert_with_links(bay, url, expand=True):
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if not expand:
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bay.unset_fields_except(['uuid', 'name', 'baymodel_id',
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'node_count', 'status',
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'bay_create_timeout', 'master_count'])
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bay.links = [link.Link.make_link('self', url,
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'bays', bay.uuid),
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link.Link.make_link('bookmark', url,
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'bays', bay.uuid,
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bookmark=True)]
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return bay
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@classmethod
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def convert_with_links(cls, rpc_bay, expand=True):
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bay = Bay(**rpc_bay.as_dict())
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return cls._convert_with_links(bay, pecan.request.host_url, expand)
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@classmethod
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def sample(cls, expand=True):
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sample = cls(uuid='27e3153e-d5bf-4b7e-b517-fb518e17f34c',
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name='example',
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baymodel_id='4a96ac4b-2447-43f1-8ca6-9fd6f36d146d',
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node_count=2,
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master_count=1,
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bay_create_timeout=15,
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status="CREATE_COMPLETE",
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status_reason="CREATE completed successfully",
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api_address='172.24.4.3',
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node_addresses=['172.24.4.4', '172.24.4.5'],
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created_at=timeutils.utcnow(),
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updated_at=timeutils.utcnow())
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return cls._convert_with_links(sample, 'http://localhost:9511', expand)
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class BayCollection(collection.Collection):
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"""API representation of a collection of bays."""
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bays = [Bay]
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"""A list containing bays objects"""
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def __init__(self, **kwargs):
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self._type = 'bays'
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@staticmethod
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def convert_with_links(rpc_bays, limit, url=None, expand=False, **kwargs):
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collection = BayCollection()
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collection.bays = [Bay.convert_with_links(p, expand)
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for p in rpc_bays]
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collection.next = collection.get_next(limit, url=url, **kwargs)
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return collection
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@classmethod
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def sample(cls):
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sample = cls()
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sample.bays = [Bay.sample(expand=False)]
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return sample
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class BaysController(rest.RestController):
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"""REST controller for Bays."""
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def __init__(self):
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super(BaysController, self).__init__()
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_custom_actions = {
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'detail': ['GET'],
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}
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def _get_bays_collection(self, marker, limit,
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sort_key, sort_dir, expand=False,
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resource_url=None):
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limit = api_utils.validate_limit(limit)
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sort_dir = api_utils.validate_sort_dir(sort_dir)
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marker_obj = None
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if marker:
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marker_obj = objects.Bay.get_by_uuid(pecan.request.context,
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marker)
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bays = pecan.request.rpcapi.bay_list(
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pecan.request.context, limit,
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marker_obj, sort_key=sort_key,
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sort_dir=sort_dir)
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return BayCollection.convert_with_links(bays, limit,
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url=resource_url,
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expand=expand,
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sort_key=sort_key,
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sort_dir=sort_dir)
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@policy.enforce_wsgi("bay")
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@expose.expose(BayCollection, types.uuid, int, wtypes.text,
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wtypes.text)
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def get_all(self, marker=None, limit=None, sort_key='id',
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sort_dir='asc'):
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"""Retrieve a list of bays.
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:param marker: pagination marker for large data sets.
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:param limit: maximum number of resources to return in a single result.
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:param sort_key: column to sort results by. Default: id.
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:param sort_dir: direction to sort. "asc" or "desc". Default: asc.
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"""
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return self._get_bays_collection(marker, limit, sort_key,
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sort_dir)
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@policy.enforce_wsgi("bay")
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@expose.expose(BayCollection, types.uuid, int, wtypes.text,
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wtypes.text)
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def detail(self, marker=None, limit=None, sort_key='id',
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sort_dir='asc'):
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"""Retrieve a list of bays with detail.
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:param marker: pagination marker for large data sets.
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:param limit: maximum number of resources to return in a single result.
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:param sort_key: column to sort results by. Default: id.
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:param sort_dir: direction to sort. "asc" or "desc". Default: asc.
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"""
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# NOTE(lucasagomes): /detail should only work agaist collections
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parent = pecan.request.path.split('/')[:-1][-1]
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if parent != "bays":
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raise exception.HTTPNotFound
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expand = True
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resource_url = '/'.join(['bays', 'detail'])
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return self._get_bays_collection(marker, limit,
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sort_key, sort_dir, expand,
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resource_url)
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@policy.enforce_wsgi("bay", "get")
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@expose.expose(Bay, types.uuid_or_name)
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def get_one(self, bay_ident):
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"""Retrieve information about the given bay.
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:param bay_ident: UUID of a bay or logical name of the bay.
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"""
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rpc_bay = api_utils.get_rpc_resource('Bay', bay_ident)
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return Bay.convert_with_links(rpc_bay)
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@policy.enforce_wsgi("bay", "create")
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@expose.expose(Bay, body=Bay, status_code=201)
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def post(self, bay):
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"""Create a new bay.
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:param bay: a bay within the request body.
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"""
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bay_dict = bay.as_dict()
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context = pecan.request.context
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bay_dict['project_id'] = context.project_id
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bay_dict['user_id'] = context.user_id
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# NOTE(suro-patz): Apply default node_count is 1, None -> 1
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if bay_dict.get('node_count', None) is None:
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bay_dict['node_count'] = 1
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new_bay = objects.Bay(context, **bay_dict)
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res_bay = pecan.request.rpcapi.bay_create(new_bay,
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bay.bay_create_timeout)
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# Set the HTTP Location Header
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pecan.response.location = link.build_url('bays', res_bay.uuid)
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return Bay.convert_with_links(res_bay)
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@policy.enforce_wsgi("bay", "update")
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@wsme.validate(types.uuid, [BayPatchType])
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@expose.expose(Bay, types.uuid_or_name, body=[BayPatchType])
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def patch(self, bay_ident, patch):
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"""Update an existing bay.
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:param bay_ident: UUID or logical name of a bay.
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:param patch: a json PATCH document to apply to this bay.
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"""
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rpc_bay = api_utils.get_rpc_resource('Bay', bay_ident)
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try:
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bay_dict = rpc_bay.as_dict()
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bay = Bay(**api_utils.apply_jsonpatch(bay_dict, patch))
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except api_utils.JSONPATCH_EXCEPTIONS as e:
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raise exception.PatchError(patch=patch, reason=e)
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# Update only the fields that have changed
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for field in objects.Bay.fields:
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try:
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patch_val = getattr(bay, field)
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except AttributeError:
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# Ignore fields that aren't exposed in the API
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continue
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if patch_val == wtypes.Unset:
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patch_val = None
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if rpc_bay[field] != patch_val:
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rpc_bay[field] = patch_val
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res_bay = pecan.request.rpcapi.bay_update(rpc_bay)
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return Bay.convert_with_links(res_bay)
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@policy.enforce_wsgi("bay", "delete")
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@expose.expose(None, types.uuid_or_name, status_code=204)
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def delete(self, bay_ident):
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"""Delete a bay.
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:param bay_ident: UUID of a bay or logical name of the bay.
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"""
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rpc_bay = api_utils.get_rpc_resource('Bay', bay_ident)
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pecan.request.rpcapi.bay_delete(rpc_bay.uuid)
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