316 lines
12 KiB
Python
316 lines
12 KiB
Python
# Copyright 2013 UnitedStack Inc.
|
|
# All Rights Reserved.
|
|
#
|
|
# Licensed under the Apache License, Version 2.0 (the "License"); you may
|
|
# not use this file except in compliance with the License. You may obtain
|
|
# a copy of the License at
|
|
#
|
|
# http://www.apache.org/licenses/LICENSE-2.0
|
|
#
|
|
# Unless required by applicable law or agreed to in writing, software
|
|
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
|
|
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
|
|
# License for the specific language governing permissions and limitations
|
|
# under the License.
|
|
|
|
import datetime
|
|
|
|
import pecan
|
|
from pecan import rest
|
|
import wsme
|
|
from wsme import types as wtypes
|
|
import wsmeext.pecan as wsme_pecan
|
|
|
|
from magnum.api.controllers import base
|
|
from magnum.api.controllers import link
|
|
from magnum.api.controllers.v1 import collection
|
|
from magnum.api.controllers.v1 import types
|
|
from magnum.api.controllers.v1 import utils as api_utils
|
|
from magnum.common import exception
|
|
from magnum import objects
|
|
|
|
|
|
class NodePatchType(types.JsonPatchType):
|
|
|
|
@staticmethod
|
|
def mandatory_attrs():
|
|
return ['/node_uuid']
|
|
|
|
|
|
class Node(base.APIBase):
|
|
"""API representation of a node.
|
|
|
|
This class enforces type checking and value constraints, and converts
|
|
between the internal object model and the API representation of a node.
|
|
"""
|
|
|
|
_node_uuid = None
|
|
|
|
def _get_node_uuid(self):
|
|
return self._node_uuid
|
|
|
|
def _set_node_uuid(self, value):
|
|
if value and self._node_uuid != value:
|
|
try:
|
|
# FIXME(comstud): One should only allow UUID here, but
|
|
# there seems to be a bug in that tests are passing an
|
|
# ID. See bug #1301046 for more details.
|
|
node = objects.Node.get(pecan.request.context, value)
|
|
self._node_uuid = node.uuid
|
|
# NOTE(lucasagomes): Create the node_id attribute on-the-fly
|
|
# to satisfy the api -> rpc object
|
|
# conversion.
|
|
self.node_id = node.id
|
|
except exception.NodeNotFound as e:
|
|
# Change error code because 404 (NotFound) is inappropriate
|
|
# response for a POST request to create a Node
|
|
e.code = 400 # BadRequest
|
|
raise e
|
|
elif value == wtypes.Unset:
|
|
self._node_uuid = wtypes.Unset
|
|
|
|
uuid = types.uuid
|
|
"""Unique UUID for this node"""
|
|
|
|
type = wtypes.text
|
|
"""Type of this node"""
|
|
|
|
image_id = wtypes.text
|
|
"""The image name or UUID to use as a base image for this node"""
|
|
|
|
ironic_node_id = wtypes.text
|
|
"""The Ironic node ID associated with this node"""
|
|
|
|
links = wsme.wsattr([link.Link], readonly=True)
|
|
"""A list containing a self link and associated node links"""
|
|
|
|
def __init__(self, **kwargs):
|
|
self.fields = []
|
|
fields = list(objects.Node.fields)
|
|
# NOTE(lucasagomes): node_uuid is not part of objects.Node.fields
|
|
# because it's an API-only attribute
|
|
fields.append('node_uuid')
|
|
for field in fields:
|
|
# Skip fields we do not expose.
|
|
if not hasattr(self, field):
|
|
continue
|
|
self.fields.append(field)
|
|
setattr(self, field, kwargs.get(field, wtypes.Unset))
|
|
|
|
# NOTE(lucasagomes): node_id is an attribute created on-the-fly
|
|
# by _set_node_uuid(), it needs to be present in the fields so
|
|
# that as_dict() will contain node_id field when converting it
|
|
# before saving it in the database.
|
|
self.fields.append('node_id')
|
|
setattr(self, 'node_uuid', kwargs.get('node_id', wtypes.Unset))
|
|
|
|
@staticmethod
|
|
def _convert_with_links(node, url, expand=True):
|
|
if not expand:
|
|
node.unset_fields_except(['uuid', 'name', 'type', 'image_id',
|
|
'ironic_node_id'])
|
|
|
|
# never expose the node_id attribute
|
|
node.node_id = wtypes.Unset
|
|
|
|
node.links = [link.Link.make_link('self', url,
|
|
'nodes', node.uuid),
|
|
link.Link.make_link('bookmark', url,
|
|
'nodes', node.uuid,
|
|
bookmark=True)
|
|
]
|
|
return node
|
|
|
|
@classmethod
|
|
def convert_with_links(cls, rpc_node, expand=True):
|
|
node = Node(**rpc_node.as_dict())
|
|
return cls._convert_with_links(node, pecan.request.host_url, expand)
|
|
|
|
@classmethod
|
|
def sample(cls, expand=True):
|
|
sample = cls(uuid='27e3153e-d5bf-4b7e-b517-fb518e17f34c',
|
|
name='example',
|
|
type='virt',
|
|
image_id='Fedora-k8s',
|
|
node_count=1,
|
|
created_at=datetime.datetime.utcnow(),
|
|
updated_at=datetime.datetime.utcnow())
|
|
# NOTE(lucasagomes): node_uuid getter() method look at the
|
|
# _node_uuid variable
|
|
sample._node_uuid = '7ae81bb3-dec3-4289-8d6c-da80bd8001ae'
|
|
return cls._convert_with_links(sample, 'http://localhost:9511', expand)
|
|
|
|
|
|
class NodeCollection(collection.Collection):
|
|
"""API representation of a collection of nodes."""
|
|
|
|
nodes = [Node]
|
|
"""A list containing nodes objects"""
|
|
|
|
def __init__(self, **kwargs):
|
|
self._type = 'nodes'
|
|
|
|
@staticmethod
|
|
def convert_with_links(rpc_nodes, limit, url=None, expand=False, **kwargs):
|
|
collection = NodeCollection()
|
|
collection.nodes = [Node.convert_with_links(p, expand)
|
|
for p in rpc_nodes]
|
|
collection.next = collection.get_next(limit, url=url, **kwargs)
|
|
return collection
|
|
|
|
@classmethod
|
|
def sample(cls):
|
|
sample = cls()
|
|
sample.nodes = [Node.sample(expand=False)]
|
|
return sample
|
|
|
|
|
|
class NodesController(rest.RestController):
|
|
"""REST controller for Nodes."""
|
|
|
|
from_nodes = False
|
|
"""A flag to indicate if the requests to this controller are coming
|
|
from the top-level resource Nodes."""
|
|
|
|
_custom_actions = {
|
|
'detail': ['GET'],
|
|
}
|
|
|
|
def _get_nodes_collection(self, marker, limit,
|
|
sort_key, sort_dir, expand=False,
|
|
resource_url=None):
|
|
|
|
limit = api_utils.validate_limit(limit)
|
|
sort_dir = api_utils.validate_sort_dir(sort_dir)
|
|
|
|
marker_obj = None
|
|
if marker:
|
|
marker_obj = objects.Node.get_by_uuid(pecan.request.context,
|
|
marker)
|
|
|
|
nodes = objects.Node.list(pecan.request.context, limit,
|
|
marker_obj, sort_key=sort_key,
|
|
sort_dir=sort_dir)
|
|
|
|
return NodeCollection.convert_with_links(nodes, limit,
|
|
url=resource_url,
|
|
expand=expand,
|
|
sort_key=sort_key,
|
|
sort_dir=sort_dir)
|
|
|
|
@wsme_pecan.wsexpose(NodeCollection, types.uuid,
|
|
types.uuid, int, wtypes.text, wtypes.text)
|
|
def get_all(self, node_uuid=None, marker=None, limit=None,
|
|
sort_key='id', sort_dir='asc'):
|
|
"""Retrieve a list of nodes.
|
|
|
|
:param marker: pagination marker for large data sets.
|
|
:param limit: maximum number of resources to return in a single result.
|
|
:param sort_key: column to sort results by. Default: id.
|
|
:param sort_dir: direction to sort. "asc" or "desc". Default: asc.
|
|
"""
|
|
return self._get_nodes_collection(marker, limit, sort_key,
|
|
sort_dir)
|
|
|
|
@wsme_pecan.wsexpose(NodeCollection, types.uuid,
|
|
types.uuid, int, wtypes.text, wtypes.text)
|
|
def detail(self, node_uuid=None, marker=None, limit=None,
|
|
sort_key='id', sort_dir='asc'):
|
|
"""Retrieve a list of nodes with detail.
|
|
|
|
:param node_uuid: UUID of a node, to get only nodes for that node.
|
|
:param marker: pagination marker for large data sets.
|
|
:param limit: maximum number of resources to return in a single result.
|
|
:param sort_key: column to sort results by. Default: id.
|
|
:param sort_dir: direction to sort. "asc" or "desc". Default: asc.
|
|
"""
|
|
# NOTE(lucasagomes): /detail should only work agaist collections
|
|
parent = pecan.request.path.split('/')[:-1][-1]
|
|
if parent != "nodes":
|
|
raise exception.HTTPNotFound
|
|
|
|
expand = True
|
|
resource_url = '/'.join(['nodes', 'detail'])
|
|
return self._get_nodes_collection(marker, limit,
|
|
sort_key, sort_dir, expand,
|
|
resource_url)
|
|
|
|
@wsme_pecan.wsexpose(Node, types.uuid)
|
|
def get_one(self, node_uuid):
|
|
"""Retrieve information about the given node.
|
|
|
|
:param node_uuid: UUID of a node.
|
|
"""
|
|
if self.from_nodes:
|
|
raise exception.OperationNotPermitted
|
|
|
|
rpc_node = objects.Node.get_by_uuid(pecan.request.context, node_uuid)
|
|
return Node.convert_with_links(rpc_node)
|
|
|
|
@wsme_pecan.wsexpose(Node, body=Node, status_code=201)
|
|
def post(self, node):
|
|
"""Create a new node.
|
|
|
|
:param node: a node within the request body.
|
|
"""
|
|
if self.from_nodes:
|
|
raise exception.OperationNotPermitted
|
|
|
|
new_node = objects.Node(pecan.request.context,
|
|
**node.as_dict())
|
|
new_node.create()
|
|
# Set the HTTP Location Header
|
|
pecan.response.location = link.build_url('nodes', new_node.uuid)
|
|
return Node.convert_with_links(new_node)
|
|
|
|
@wsme.validate(types.uuid, [NodePatchType])
|
|
@wsme_pecan.wsexpose(Node, types.uuid, body=[NodePatchType])
|
|
def patch(self, node_uuid, patch):
|
|
"""Update an existing node.
|
|
|
|
:param node_uuid: UUID of a node.
|
|
:param patch: a json PATCH document to apply to this node.
|
|
"""
|
|
if self.from_nodes:
|
|
raise exception.OperationNotPermitted
|
|
|
|
rpc_node = objects.Node.get_by_uuid(pecan.request.context, node_uuid)
|
|
try:
|
|
node_dict = rpc_node.as_dict()
|
|
# NOTE(lucasagomes):
|
|
# 1) Remove node_id because it's an internal value and
|
|
# not present in the API object
|
|
# 2) Add node_uuid
|
|
node_dict['node_uuid'] = node_dict.pop('node_id', None)
|
|
node = Node(**api_utils.apply_jsonpatch(node_dict, patch))
|
|
except api_utils.JSONPATCH_EXCEPTIONS as e:
|
|
raise exception.PatchError(patch=patch, reason=e)
|
|
|
|
# Update only the fields that have changed
|
|
for field in objects.Node.fields:
|
|
try:
|
|
patch_val = getattr(node, field)
|
|
except AttributeError:
|
|
# Ignore fields that aren't exposed in the API
|
|
continue
|
|
if patch_val == wtypes.Unset:
|
|
patch_val = None
|
|
if rpc_node[field] != patch_val:
|
|
rpc_node[field] = patch_val
|
|
|
|
rpc_node.save()
|
|
return Node.convert_with_links(rpc_node)
|
|
|
|
@wsme_pecan.wsexpose(None, types.uuid, status_code=204)
|
|
def delete(self, node_uuid):
|
|
"""Delete a node.
|
|
|
|
:param node_uuid: UUID of a node.
|
|
"""
|
|
if self.from_nodes:
|
|
raise exception.OperationNotPermitted
|
|
|
|
rpc_node = objects.Node.get_by_uuid(pecan.request.context,
|
|
node_uuid)
|
|
rpc_node.destroy()
|