Load Balancing as a Service (LBaaS) for OpenStack
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octavia/octavia/api/v2/controllers/availability_zone_profiles.py

237 lines
11 KiB

# Copyright 2019 Verizon Media
#
# 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.
from oslo_db import exception as odb_exceptions
from oslo_log import log as logging
from oslo_serialization import jsonutils
from oslo_utils import excutils
from oslo_utils import uuidutils
from pecan import request as pecan_request
from sqlalchemy.orm import exc as sa_exception
from wsme import types as wtypes
from wsmeext import pecan as wsme_pecan
from octavia.api.drivers import driver_factory
from octavia.api.drivers import utils as driver_utils
from octavia.api.v2.controllers import base
from octavia.api.v2.types import availability_zone_profile as profile_types
from octavia.common import constants
from octavia.common import exceptions
from octavia.db import api as db_api
LOG = logging.getLogger(__name__)
class AvailabilityZoneProfileController(base.BaseController):
RBAC_TYPE = constants.RBAC_AVAILABILITY_ZONE_PROFILE
def __init__(self):
super(AvailabilityZoneProfileController, self).__init__()
@wsme_pecan.wsexpose(profile_types.AvailabilityZoneProfileRootResponse,
wtypes.text, [wtypes.text], ignore_extra_args=True)
def get_one(self, id, fields=None):
"""Gets an Availability Zone Profile's detail."""
context = pecan_request.context.get('octavia_context')
self._auth_validate_action(context, context.project_id,
constants.RBAC_GET_ONE)
if id == constants.NIL_UUID:
raise exceptions.NotFound(resource='Availability Zone Profile',
id=constants.NIL_UUID)
db_availability_zone_profile = self._get_db_availability_zone_profile(
context.session, id)
result = self._convert_db_to_type(
db_availability_zone_profile,
profile_types.AvailabilityZoneProfileResponse)
if fields is not None:
result = self._filter_fields([result], fields)[0]
return profile_types.AvailabilityZoneProfileRootResponse(
availability_zone_profile=result)
@wsme_pecan.wsexpose(profile_types.AvailabilityZoneProfilesRootResponse,
[wtypes.text], ignore_extra_args=True)
def get_all(self, fields=None):
"""Lists all Availability Zone Profiles."""
pcontext = pecan_request.context
context = pcontext.get('octavia_context')
self._auth_validate_action(context, context.project_id,
constants.RBAC_GET_ALL)
db_availability_zone_profiles, links = (
self.repositories.availability_zone_profile.get_all(
context.session,
pagination_helper=pcontext.get(constants.PAGINATION_HELPER)))
result = self._convert_db_to_type(
db_availability_zone_profiles,
[profile_types.AvailabilityZoneProfileResponse])
if fields is not None:
result = self._filter_fields(result, fields)
return profile_types.AvailabilityZoneProfilesRootResponse(
availability_zone_profiles=result,
availability_zone_profile_links=links)
@wsme_pecan.wsexpose(profile_types.AvailabilityZoneProfileRootResponse,
body=profile_types.AvailabilityZoneProfileRootPOST,
status_code=201)
def post(self, availability_zone_profile_):
"""Creates an Availability Zone Profile."""
availability_zone_profile = (
availability_zone_profile_.availability_zone_profile)
context = pecan_request.context.get('octavia_context')
self._auth_validate_action(context, context.project_id,
constants.RBAC_POST)
# Do a basic JSON validation on the metadata
try:
availability_zone_data_dict = jsonutils.loads(
availability_zone_profile.availability_zone_data)
except Exception:
raise exceptions.InvalidOption(
value=availability_zone_profile.availability_zone_data,
option=constants.AVAILABILITY_ZONE_DATA)
# Validate that the provider driver supports the metadata
driver = driver_factory.get_driver(
availability_zone_profile.provider_name)
driver_utils.call_provider(
driver.name, driver.validate_availability_zone,
availability_zone_data_dict)
lock_session = db_api.get_session(autocommit=False)
try:
availability_zone_profile_dict = availability_zone_profile.to_dict(
render_unsets=True)
availability_zone_profile_dict['id'] = uuidutils.generate_uuid()
db_availability_zone_profile = (
self.repositories.availability_zone_profile.create(
lock_session, **availability_zone_profile_dict))
lock_session.commit()
except odb_exceptions.DBDuplicateEntry:
lock_session.rollback()
raise exceptions.IDAlreadyExists()
except Exception:
with excutils.save_and_reraise_exception():
lock_session.rollback()
result = self._convert_db_to_type(
db_availability_zone_profile,
profile_types.AvailabilityZoneProfileResponse)
return profile_types.AvailabilityZoneProfileRootResponse(
availability_zone_profile=result)
def _validate_update_azp(self, context, id, availability_zone_profile):
if availability_zone_profile.name is None:
raise exceptions.InvalidOption(value=None, option=constants.NAME)
if availability_zone_profile.provider_name is None:
raise exceptions.InvalidOption(
value=None, option=constants.PROVIDER_NAME)
if availability_zone_profile.availability_zone_data is None:
raise exceptions.InvalidOption(
value=None, option=constants.AVAILABILITY_ZONE_DATA)
# Don't allow changes to the availability_zone_data or provider_name if
# it is in use.
if (not isinstance(availability_zone_profile.availability_zone_data,
wtypes.UnsetType) or
not isinstance(availability_zone_profile.provider_name,
wtypes.UnsetType)):
if self.repositories.availability_zone.count(
context.session, availability_zone_profile_id=id) > 0:
raise exceptions.ObjectInUse(
object='Availability Zone Profile', id=id)
@wsme_pecan.wsexpose(profile_types.AvailabilityZoneProfileRootResponse,
wtypes.text, status_code=200,
body=profile_types.AvailabilityZoneProfileRootPUT)
def put(self, id, availability_zone_profile_):
"""Updates an Availability Zone Profile."""
availability_zone_profile = (
availability_zone_profile_.availability_zone_profile)
context = pecan_request.context.get('octavia_context')
self._auth_validate_action(context, context.project_id,
constants.RBAC_PUT)
self._validate_update_azp(context, id, availability_zone_profile)
if id == constants.NIL_UUID:
raise exceptions.NotFound(resource='Availability Zone Profile',
id=constants.NIL_UUID)
if not isinstance(availability_zone_profile.availability_zone_data,
wtypes.UnsetType):
# Do a basic JSON validation on the metadata
try:
availability_zone_data_dict = jsonutils.loads(
availability_zone_profile.availability_zone_data)
except Exception:
raise exceptions.InvalidOption(
value=availability_zone_profile.availability_zone_data,
option=constants.FLAVOR_DATA)
if isinstance(availability_zone_profile.provider_name,
wtypes.UnsetType):
db_availability_zone_profile = (
self._get_db_availability_zone_profile(
context.session, id))
provider_driver = db_availability_zone_profile.provider_name
else:
provider_driver = availability_zone_profile.provider_name
# Validate that the provider driver supports the metadata
driver = driver_factory.get_driver(provider_driver)
driver_utils.call_provider(
driver.name, driver.validate_availability_zone,
availability_zone_data_dict)
lock_session = db_api.get_session(autocommit=False)
try:
availability_zone_profile_dict = availability_zone_profile.to_dict(
render_unsets=False)
if availability_zone_profile_dict:
self.repositories.availability_zone_profile.update(
lock_session, id, **availability_zone_profile_dict)
lock_session.commit()
except Exception:
with excutils.save_and_reraise_exception():
lock_session.rollback()
# Force SQL alchemy to query the DB, otherwise we get inconsistent
# results
context.session.expire_all()
db_availability_zone_profile = self._get_db_availability_zone_profile(
context.session, id)
result = self._convert_db_to_type(
db_availability_zone_profile,
profile_types.AvailabilityZoneProfileResponse)
return profile_types.AvailabilityZoneProfileRootResponse(
availability_zone_profile=result)
@wsme_pecan.wsexpose(None, wtypes.text, status_code=204)
def delete(self, availability_zone_profile_id):
"""Deletes an Availability Zone Profile"""
context = pecan_request.context.get('octavia_context')
self._auth_validate_action(context, context.project_id,
constants.RBAC_DELETE)
if availability_zone_profile_id == constants.NIL_UUID:
raise exceptions.NotFound(resource='Availability Zone Profile',
id=constants.NIL_UUID)
# Don't allow it to be deleted if it is in use by an availability zone
if self.repositories.availability_zone.count(
context.session,
availability_zone_profile_id=availability_zone_profile_id) > 0:
raise exceptions.ObjectInUse(object='Availability Zone Profile',
id=availability_zone_profile_id)
try:
self.repositories.availability_zone_profile.delete(
context.session, id=availability_zone_profile_id)
except sa_exception.NoResultFound:
raise exceptions.NotFound(resource='Availability Zone Profile',
id=availability_zone_profile_id)