218 lines
8.6 KiB
Python
218 lines
8.6 KiB
Python
# Copyright 2014 Rackspace
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# Copyright 2016 Blue Box, an IBM Company
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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_config import cfg
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from oslo_log import log as logging
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import oslo_messaging as messaging
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from oslo_utils import excutils
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from pecan import expose as pecan_expose
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from pecan import request as pecan_request
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from wsme import types as wtypes
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from wsmeext import pecan as wsme_pecan
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from octavia.api.v2.controllers import base
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from octavia.api.v2.types import amphora as amp_types
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from octavia.common import constants
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from octavia.common import exceptions
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from octavia.common import rpc
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CONF = cfg.CONF
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LOG = logging.getLogger(__name__)
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class AmphoraController(base.BaseController):
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RBAC_TYPE = constants.RBAC_AMPHORA
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def __init__(self):
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super(AmphoraController, self).__init__()
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@wsme_pecan.wsexpose(amp_types.AmphoraRootResponse, wtypes.text,
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[wtypes.text], ignore_extra_args=True)
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def get_one(self, id, fields=None):
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"""Gets a single amphora's details."""
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context = pecan_request.context.get('octavia_context')
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db_amp = self._get_db_amp(context.session, id, show_deleted=False)
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self._auth_validate_action(context, context.project_id,
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constants.RBAC_GET_ONE)
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result = self._convert_db_to_type(
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db_amp, amp_types.AmphoraResponse)
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if fields is not None:
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result = self._filter_fields([result], fields)[0]
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return amp_types.AmphoraRootResponse(amphora=result)
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@wsme_pecan.wsexpose(amp_types.AmphoraeRootResponse, [wtypes.text],
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ignore_extra_args=True)
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def get_all(self, fields=None):
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"""Gets all health monitors."""
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pcontext = pecan_request.context
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context = pcontext.get('octavia_context')
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self._auth_validate_action(context, context.project_id,
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constants.RBAC_GET_ALL)
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db_amp, links = self.repositories.amphora.get_all_API_list(
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context.session, show_deleted=False,
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pagination_helper=pcontext.get(constants.PAGINATION_HELPER))
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result = self._convert_db_to_type(
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db_amp, [amp_types.AmphoraResponse])
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if fields is not None:
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result = self._filter_fields(result, fields)
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return amp_types.AmphoraeRootResponse(
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amphorae=result, amphorae_links=links)
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@pecan_expose()
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def _lookup(self, amphora_id, *remainder):
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"""Overridden pecan _lookup method for custom routing.
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Currently it checks if this was a failover request and routes
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the request to the FailoverController.
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"""
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if amphora_id and remainder:
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controller = remainder[0]
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remainder = remainder[1:]
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if controller == 'config':
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return AmphoraUpdateController(amp_id=amphora_id), remainder
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if controller == 'failover':
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return FailoverController(amp_id=amphora_id), remainder
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if controller == 'stats':
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return AmphoraStatsController(amp_id=amphora_id), remainder
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return None
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class FailoverController(base.BaseController):
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RBAC_TYPE = constants.RBAC_AMPHORA
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def __init__(self, amp_id):
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super(FailoverController, self).__init__()
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if CONF.api_settings.default_provider_driver == constants.AMPHORAV2:
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topic = constants.TOPIC_AMPHORA_V2
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version = "2.0"
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else:
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topic = cfg.CONF.oslo_messaging.topic
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version = "1.0"
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self.target = messaging.Target(
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namespace=constants.RPC_NAMESPACE_CONTROLLER_AGENT,
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topic=topic, version=version, fanout=False)
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self.client = rpc.get_client(self.target)
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self.amp_id = amp_id
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@wsme_pecan.wsexpose(None, wtypes.text, status_code=202)
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def put(self):
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"""Fails over an amphora"""
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pcontext = pecan_request.context
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context = pcontext.get('octavia_context')
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db_amp = self._get_db_amp(context.session, self.amp_id,
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show_deleted=False)
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# Check to see if the amphora is a spare (not associated with an LB)
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if db_amp.load_balancer:
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self._auth_validate_action(
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context, db_amp.load_balancer.project_id,
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constants.RBAC_PUT_FAILOVER)
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self.repositories.load_balancer.test_and_set_provisioning_status(
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context.session, db_amp.load_balancer_id,
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status=constants.PENDING_UPDATE, raise_exception=True)
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else:
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self._auth_validate_action(
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context, context.project_id, constants.RBAC_PUT_FAILOVER)
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try:
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LOG.info("Sending failover request for amphora %s to the queue",
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self.amp_id)
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payload = {constants.AMPHORA_ID: db_amp.id}
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self.client.cast({}, 'failover_amphora', **payload)
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except Exception:
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with excutils.save_and_reraise_exception(reraise=False):
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self.repositories.load_balancer.update(
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context.session, db_amp.load_balancer.id,
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provisioning_status=constants.ERROR)
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class AmphoraUpdateController(base.BaseController):
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RBAC_TYPE = constants.RBAC_AMPHORA
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def __init__(self, amp_id):
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super(AmphoraUpdateController, self).__init__()
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if CONF.api_settings.default_provider_driver == constants.AMPHORAV2:
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topic = constants.TOPIC_AMPHORA_V2
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version = "2.0"
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else:
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topic = cfg.CONF.oslo_messaging.topic
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version = "1.0"
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self.transport = messaging.get_rpc_transport(cfg.CONF)
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self.target = messaging.Target(
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namespace=constants.RPC_NAMESPACE_CONTROLLER_AGENT,
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topic=topic, version=version, fanout=False)
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self.client = messaging.RPCClient(self.transport, target=self.target)
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self.amp_id = amp_id
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@wsme_pecan.wsexpose(None, wtypes.text, status_code=202)
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def put(self):
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"""Update amphora agent configuration"""
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pcontext = pecan_request.context
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context = pcontext.get('octavia_context')
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db_amp = self._get_db_amp(context.session, self.amp_id,
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show_deleted=False)
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# Check to see if the amphora is a spare (not associated with an LB)
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if db_amp.load_balancer:
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self._auth_validate_action(
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context, db_amp.load_balancer.project_id,
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constants.RBAC_PUT_CONFIG)
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else:
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self._auth_validate_action(
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context, context.project_id, constants.RBAC_PUT_CONFIG)
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try:
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LOG.info("Sending amphora agent update request for amphora %s to "
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"the queue.", self.amp_id)
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payload = {constants.AMPHORA_ID: db_amp.id}
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self.client.cast({}, 'update_amphora_agent_config', **payload)
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except Exception:
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with excutils.save_and_reraise_exception(reraise=True):
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LOG.error("Unable to send amphora agent update request for "
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"amphora %s to the queue.", self.amp_id)
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class AmphoraStatsController(base.BaseController):
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RBAC_TYPE = constants.RBAC_AMPHORA
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def __init__(self, amp_id):
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super(AmphoraStatsController, self).__init__()
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self.amp_id = amp_id
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@wsme_pecan.wsexpose(amp_types.StatisticsRootResponse, wtypes.text,
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status_code=200)
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def get(self):
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context = pecan_request.context.get('octavia_context')
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self._auth_validate_action(context, context.project_id,
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constants.RBAC_GET_STATS)
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stats = self.repositories.get_amphora_stats(context.session,
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self.amp_id)
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if stats == []:
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raise exceptions.NotFound(resource='Amphora stats for',
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id=self.amp_id)
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wsme_stats = []
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for stat in stats:
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wsme_stats.append(amp_types.AmphoraStatisticsResponse(**stat))
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return amp_types.StatisticsRootResponse(amphora_stats=wsme_stats)
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