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magnum
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magnum/magnum/api/controllers/v1/bay.py

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# 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 uuid
from oslo_log import log as logging
from oslo_utils import timeutils
import pecan
import wsme
from wsme import types as wtypes
from magnum.api import attr_validator
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 import expose
from magnum.api import utils as api_utils
from magnum.api.validation import validate_cluster_properties
from magnum.common import clients
from magnum.common import exception
from magnum.common import name_generator
from magnum.common import policy
from magnum.i18n import _LW
from magnum import objects
from magnum.objects import fields
LOG = logging.getLogger(__name__)
class BayID(wtypes.Base):
uuid = types.uuid
def __init__(self, uuid):
self.uuid = uuid
class Bay(base.APIBase):
"""API representation of a bay.
This class enforces type checking and value constraints, and converts
between the internal object model and the API representation of a bay.
"""
_baymodel_id = None
def _get_baymodel_id(self):
return self._baymodel_id
def _set_baymodel_id(self, value):
if value and self._baymodel_id != value:
try:
baymodel = api_utils.get_resource('ClusterTemplate', value)
self._baymodel_id = baymodel.uuid
except exception.ClusterTemplateNotFound as e:
# Change error code because 404 (NotFound) is inappropriate
# response for a POST request to create a Cluster
e.code = 400 # BadRequest
raise
elif value == wtypes.Unset:
self._baymodel_id = wtypes.Unset
uuid = types.uuid
"""Unique UUID for this bay"""
name = wtypes.StringType(min_length=1, max_length=242,
pattern='^[a-zA-Z][a-zA-Z0-9_.-]*$')
"""Name of this bay, max length is limited to 242 because of heat stack
requires max length limit to 255, and Magnum amend a uuid length"""
baymodel_id = wsme.wsproperty(wtypes.text, _get_baymodel_id,
_set_baymodel_id, mandatory=True)
"""The baymodel UUID"""
node_count = wsme.wsattr(wtypes.IntegerType(minimum=1), default=1)
"""The node count for this bay. Default to 1 if not set"""
master_count = wsme.wsattr(wtypes.IntegerType(minimum=1), default=1)
"""The number of master nodes for this bay. Default to 1 if not set"""
bay_create_timeout = wsme.wsattr(wtypes.IntegerType(minimum=0), default=60)
"""Timeout for creating the bay in minutes. Default to 60 if not set"""
links = wsme.wsattr([link.Link], readonly=True)
"""A list containing a self link and associated bay links"""
stack_id = wsme.wsattr(wtypes.text, readonly=True)
"""Stack id of the heat stack"""
status = wtypes.Enum(str, *fields.ClusterStatus.ALL)
"""Status of the bay from the heat stack"""
status_reason = wtypes.text
"""Status reason of the bay from the heat stack"""
discovery_url = wtypes.text
"""Url used for bay node discovery"""
api_address = wsme.wsattr(wtypes.text, readonly=True)
"""Api address of cluster master node"""
coe_version = wsme.wsattr(wtypes.text, readonly=True)
"""Version of the COE software currently running in this cluster.
Example: swarm version or kubernetes version."""
container_version = wsme.wsattr(wtypes.text, readonly=True)
"""Version of the container software. Example: docker version."""
node_addresses = wsme.wsattr([wtypes.text], readonly=True)
"""IP addresses of cluster slave nodes"""
master_addresses = wsme.wsattr([wtypes.text], readonly=True)
"""IP addresses of cluster master nodes"""
bay_faults = wsme.wsattr(wtypes.DictType(str, wtypes.text))
"""Fault info collected from the heat resources of this bay"""
def __init__(self, **kwargs):
super(Bay, self).__init__()
self.fields = []
for field in objects.Cluster.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))
# Set the renamed attributes for bay backwards compatibility
self.fields.append('baymodel_id')
if 'baymodel_id' in kwargs.keys():
setattr(self, 'cluster_template_id',
kwargs.get('baymodel_id', None))
setattr(self, 'baymodel_id',
kwargs.get('baymodel_id', None))
else:
setattr(self, 'baymodel_id', kwargs.get('cluster_template_id',
None))
self.fields.append('bay_create_timeout')
if 'bay_create_timeout' in kwargs.keys():
setattr(self, 'create_timeout',
kwargs.get('bay_create_timeout', wtypes.Unset))
setattr(self, 'bay_create_timeout',
kwargs.get('bay_create_timeout', wtypes.Unset))
else:
setattr(self, 'bay_create_timeout', kwargs.get('create_timeout',
wtypes.Unset))
self.fields.append('bay_faults')
if 'bay_faults' in kwargs.keys():
setattr(self, 'faults',
kwargs.get('bay_faults', wtypes.Unset))
setattr(self, 'bay_faults',
kwargs.get('bay_faults', wtypes.Unset))
else:
setattr(self, 'bay_faults', kwargs.get('faults', wtypes.Unset))
@staticmethod
def _convert_with_links(bay, url, expand=True):
if not expand:
bay.unset_fields_except(['uuid', 'name', 'baymodel_id',
'node_count', 'status',
'bay_create_timeout', 'master_count',
'stack_id'])
bay.links = [link.Link.make_link('self', url,
'bays', bay.uuid),
link.Link.make_link('bookmark', url,
'bays', bay.uuid,
bookmark=True)]
return bay
@classmethod
def convert_with_links(cls, rpc_bay, expand=True):
bay = Bay(**rpc_bay.as_dict())
return cls._convert_with_links(bay, pecan.request.host_url, expand)
@classmethod
def sample(cls, expand=True):
sample = cls(uuid='27e3153e-d5bf-4b7e-b517-fb518e17f34c',
name='example',
baymodel_id='4a96ac4b-2447-43f1-8ca6-9fd6f36d146d',
node_count=2,
master_count=1,
bay_create_timeout=15,
stack_id='49dc23f5-ffc9-40c3-9d34-7be7f9e34d63',
status=fields.ClusterStatus.CREATE_COMPLETE,
status_reason="CREATE completed successfully",
api_address='172.24.4.3',
node_addresses=['172.24.4.4', '172.24.4.5'],
created_at=timeutils.utcnow(),
updated_at=timeutils.utcnow(),
coe_version=None,
container_version=None)
return cls._convert_with_links(sample, 'http://localhost:9511', expand)
def as_dict(self):
"""Render this object as a dict of its fields."""
# Override this for old bay values
d = super(Bay, self).as_dict()
d['cluster_template_id'] = d['baymodel_id']
del d['baymodel_id']
d['create_timeout'] = d['bay_create_timeout']
del d['bay_create_timeout']
if 'bay_faults' in d.keys():
d['faults'] = d['bay_faults']
del d['bay_faults']
return d
class BayPatchType(types.JsonPatchType):
_api_base = Bay
@staticmethod
def internal_attrs():
internal_attrs = ['/api_address', '/node_addresses',
'/master_addresses', '/stack_id',
'/ca_cert_ref', '/magnum_cert_ref',
'/trust_id', '/trustee_user_name',
'/trustee_password', '/trustee_user_id']
return types.JsonPatchType.internal_attrs() + internal_attrs
class BayCollection(collection.Collection):
"""API representation of a collection of bays."""
bays = [Bay]
"""A list containing bays objects"""
def __init__(self, **kwargs):
self._type = 'bays'
@staticmethod
def convert_with_links(rpc_bays, limit, url=None, expand=False, **kwargs):
collection = BayCollection()
collection.bays = [Bay.convert_with_links(p, expand)
for p in rpc_bays]
collection.next = collection.get_next(limit, url=url, **kwargs)
return collection
@classmethod
def sample(cls):
sample = cls()
sample.bays = [Bay.sample(expand=False)]
return sample
class BaysController(base.Controller):
"""REST controller for Bays."""
def __init__(self):
super(BaysController, self).__init__()
_custom_actions = {
'detail': ['GET'],
}
def _generate_name_for_bay(self, context):
'''Generate a random name like: zeta-22-bay.'''
name_gen = name_generator.NameGenerator()
name = name_gen.generate()
return name + '-bay'
def _get_bays_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.Cluster.get_by_uuid(pecan.request.context,
marker)
bays = objects.Cluster.list(pecan.request.context, limit,
marker_obj, sort_key=sort_key,
sort_dir=sort_dir)
return BayCollection.convert_with_links(bays, limit,
url=resource_url,
expand=expand,
sort_key=sort_key,
sort_dir=sort_dir)
@expose.expose(BayCollection, types.uuid, int, wtypes.text,
wtypes.text)
def get_all(self, marker=None, limit=None, sort_key='id',
sort_dir='asc'):
"""Retrieve a list of bays.
: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.
"""
context = pecan.request.context
policy.enforce(context, 'bay:get_all',
action='bay:get_all')
return self._get_bays_collection(marker, limit, sort_key,
sort_dir)
@expose.expose(BayCollection, types.uuid, int, wtypes.text,
wtypes.text)
def detail(self, marker=None, limit=None, sort_key='id',
sort_dir='asc'):
"""Retrieve a list of bays with detail.
: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.
"""
context = pecan.request.context
policy.enforce(context, 'bay:detail',
action='bay:detail')
# NOTE(lucasagomes): /detail should only work against collections
parent = pecan.request.path.split('/')[:-1][-1]
if parent != "bays":
raise exception.HTTPNotFound
expand = True
resource_url = '/'.join(['bays', 'detail'])
return self._get_bays_collection(marker, limit,
sort_key, sort_dir, expand,
resource_url)
def _collect_fault_info(self, context, bay):
"""Collect fault info from heat resources of given bay
and store them into bay.bay_faults.
"""
osc = clients.OpenStackClients(context)
filters = {'status': 'FAILED'}
try:
failed_resources = osc.heat().resources.list(
bay.stack_id, nested_depth=2, filters=filters)
except Exception as e:
failed_resources = []
LOG.warning(_LW("Failed to retrieve failed resources for "
"bay %(bay)s from Heat stack %(stack)s "
"due to error: %(e)s"),
{'bay': bay.uuid, 'stack': bay.stack_id, 'e': e},
exc_info=True)
return {res.resource_name: res.resource_status_reason
for res in failed_resources}
@expose.expose(Bay, types.uuid_or_name)
def get_one(self, bay_ident):
"""Retrieve information about the given bay.
:param bay_ident: UUID of a bay or logical name of the bay.
"""
context = pecan.request.context
bay = api_utils.get_resource('Cluster', bay_ident)
policy.enforce(context, 'bay:get', bay.as_dict(),
action='bay:get')
bay = Bay.convert_with_links(bay)
if bay.status in fields.ClusterStatus.STATUS_FAILED:
bay.bay_faults = self._collect_fault_info(context, bay)
return bay
@base.Controller.api_version("1.1", "1.1")
@expose.expose(Bay, body=Bay, status_code=201)
def post(self, bay):
"""Create a new bay.
:param bay: a bay within the request body.
"""
new_bay = self._post(bay)
res_bay = pecan.request.rpcapi.cluster_create(new_bay,
bay.bay_create_timeout)
# Set the HTTP Location Header
pecan.response.location = link.build_url('bays', res_bay.uuid)
return Bay.convert_with_links(res_bay)
@base.Controller.api_version("1.2") # noqa
@expose.expose(BayID, body=Bay, status_code=202)
def post(self, bay):
"""Create a new bay.
:param bay: a bay within the request body.
"""
new_bay = self._post(bay)
pecan.request.rpcapi.cluster_create_async(new_bay,
bay.bay_create_timeout)
return BayID(new_bay.uuid)
def _post(self, bay):
context = pecan.request.context
policy.enforce(context, 'bay:create',
action='bay:create')
baymodel = objects.ClusterTemplate.get_by_uuid(context,
bay.baymodel_id)
bay_dict = bay.as_dict()
bay_dict['keypair'] = baymodel.keypair_id
attr_validator.validate_os_resources(context, baymodel.as_dict(),
bay_dict)
attr_validator.validate_master_count(bay.as_dict(), baymodel.as_dict())
bay_dict['project_id'] = context.project_id
bay_dict['user_id'] = context.user_id
# NOTE(yuywz): We will generate a random human-readable name for
# bay if the name is not spcified by user.
name = bay_dict.get('name') or self._generate_name_for_bay(context)
bay_dict['name'] = name
bay_dict['coe_version'] = None
bay_dict['container_version'] = None
new_bay = objects.Cluster(context, **bay_dict)
new_bay.uuid = uuid.uuid4()
return new_bay
@base.Controller.api_version("1.1", "1.1")
@wsme.validate(types.uuid, [BayPatchType])
@expose.expose(Bay, types.uuid_or_name, body=[BayPatchType])
def patch(self, bay_ident, patch):
"""Update an existing bay.
:param bay_ident: UUID or logical name of a bay.
:param patch: a json PATCH document to apply to this bay.
"""
bay = self._patch(bay_ident, patch)
res_bay = pecan.request.rpcapi.cluster_update(bay)
return Bay.convert_with_links(res_bay)
@base.Controller.api_version("1.2", "1.2") # noqa
@wsme.validate(types.uuid, [BayPatchType])
@expose.expose(BayID, types.uuid_or_name, body=[BayPatchType],
status_code=202)
def patch(self, bay_ident, patch):
"""Update an existing bay.
:param bay_ident: UUID or logical name of a bay.
:param patch: a json PATCH document to apply to this bay.
"""
bay = self._patch(bay_ident, patch)
pecan.request.rpcapi.cluster_update_async(bay)
return BayID(bay.uuid)
@base.Controller.api_version("1.3") # noqa
@wsme.validate(types.uuid, bool, [BayPatchType])
@expose.expose(BayID, types.uuid_or_name, types.boolean,
body=[BayPatchType], status_code=202)
def patch(self, bay_ident, rollback=False, patch=None):
"""Update an existing bay.
:param bay_ident: UUID or logical name of a bay.
:param rollback: whether to rollback bay on update failure.
:param patch: a json PATCH document to apply to this bay.
"""
bay = self._patch(bay_ident, patch)
pecan.request.rpcapi.cluster_update_async(bay, rollback=rollback)
return BayID(bay.uuid)
def _patch(self, bay_ident, patch):
context = pecan.request.context
bay = api_utils.get_resource('Cluster', bay_ident)
policy.enforce(context, 'bay:update', bay.as_dict(),
action='bay:update')
try:
bay_dict = bay.as_dict()
new_bay = Bay(**api_utils.apply_jsonpatch(bay_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.Cluster.fields:
try:
patch_val = getattr(new_bay, field)
except AttributeError:
# Ignore fields that aren't exposed in the API
continue
if patch_val == wtypes.Unset:
patch_val = None
if bay[field] != patch_val:
bay[field] = patch_val
delta = bay.obj_what_changed()
validate_cluster_properties(delta)
return bay
@base.Controller.api_version("1.1", "1.1")
@expose.expose(None, types.uuid_or_name, status_code=204)
def delete(self, bay_ident):
"""Delete a bay.
:param bay_ident: UUID of a bay or logical name of the bay.
"""
bay = self._delete(bay_ident)
pecan.request.rpcapi.cluster_delete(bay.uuid)
@base.Controller.api_version("1.2") # noqa
@expose.expose(None, types.uuid_or_name, status_code=204)
def delete(self, bay_ident):
"""Delete a bay.
:param bay_ident: UUID of a bay or logical name of the bay.
"""
bay = self._delete(bay_ident)
pecan.request.rpcapi.cluster_delete_async(bay.uuid)
def _delete(self, bay_ident):
context = pecan.request.context
bay = api_utils.get_resource('Cluster', bay_ident)
policy.enforce(context, 'bay:delete', bay.as_dict(),
action='bay:delete')
return bay
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