189 lines
8.1 KiB
Python
189 lines
8.1 KiB
Python
# Copyright 2014 Rackspace
|
|
# Copyright 2016 Blue Box, an IBM Company
|
|
#
|
|
# 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 logging
|
|
|
|
import oslo_db.exception as oslo_exc
|
|
from oslo_utils import excutils
|
|
import pecan
|
|
from wsme import types as wtypes
|
|
from wsmeext import pecan as wsme_pecan
|
|
|
|
from octavia.api.v1.controllers import base
|
|
from octavia.api.v1.types import member as member_types
|
|
from octavia.common import constants
|
|
from octavia.common import data_models
|
|
from octavia.common import exceptions
|
|
import octavia.common.validate as validate
|
|
from octavia.db import api as db_api
|
|
from octavia.db import prepare as db_prepare
|
|
|
|
LOG = logging.getLogger(__name__)
|
|
|
|
|
|
class MembersController(base.BaseController):
|
|
|
|
def __init__(self, load_balancer_id, pool_id, listener_id=None):
|
|
super(MembersController, self).__init__()
|
|
self.load_balancer_id = load_balancer_id
|
|
self.listener_id = listener_id
|
|
self.pool_id = pool_id
|
|
self.handler = self.handler.member
|
|
|
|
@wsme_pecan.wsexpose(member_types.MemberResponse, wtypes.text)
|
|
def get(self, id):
|
|
"""Gets a single pool member's details."""
|
|
context = pecan.request.context.get('octavia_context')
|
|
db_member = self._get_db_member(context.session, id)
|
|
return self._convert_db_to_type(db_member, member_types.MemberResponse)
|
|
|
|
@wsme_pecan.wsexpose([member_types.MemberResponse])
|
|
def get_all(self):
|
|
"""Lists all pool members of a pool."""
|
|
context = pecan.request.context.get('octavia_context')
|
|
db_members = self.repositories.member.get_all(
|
|
context.session, pool_id=self.pool_id)
|
|
return self._convert_db_to_type(db_members,
|
|
[member_types.MemberResponse])
|
|
|
|
def _get_affected_listener_ids(self, session, member=None):
|
|
"""Gets a list of all listeners this request potentially affects."""
|
|
listener_ids = []
|
|
if member:
|
|
listener_ids = [l.id for l in member.pool.listeners]
|
|
else:
|
|
pool = self._get_db_pool(session, self.pool_id)
|
|
for listener in pool.listeners:
|
|
if listener.id not in listener_ids:
|
|
listener_ids.append(listener.id)
|
|
if self.listener_id and self.listener_id not in listener_ids:
|
|
listener_ids.append(self.listener_id)
|
|
return listener_ids
|
|
|
|
def _test_lb_and_listener_statuses(self, session, member=None):
|
|
"""Verify load balancer is in a mutable state."""
|
|
# We need to verify that any listeners referencing this member's
|
|
# pool are also mutable
|
|
if not self.repositories.test_and_set_lb_and_listeners_prov_status(
|
|
session, self.load_balancer_id,
|
|
constants.PENDING_UPDATE, constants.PENDING_UPDATE,
|
|
listener_ids=self._get_affected_listener_ids(session, member)):
|
|
LOG.info("Member cannot be created or modified because the "
|
|
"Load Balancer is in an immutable state")
|
|
lb_repo = self.repositories.load_balancer
|
|
db_lb = lb_repo.get(session, id=self.load_balancer_id)
|
|
raise exceptions.ImmutableObject(resource=db_lb._name(),
|
|
id=self.load_balancer_id)
|
|
|
|
@wsme_pecan.wsexpose(member_types.MemberResponse,
|
|
body=member_types.MemberPOST, status_code=202)
|
|
def post(self, member):
|
|
"""Creates a pool member on a pool."""
|
|
context = pecan.request.context.get('octavia_context')
|
|
|
|
member.project_id = self._get_lb_project_id(context.session,
|
|
self.load_balancer_id)
|
|
|
|
# Validate member subnet
|
|
if member.subnet_id:
|
|
validate.subnet_exists(member.subnet_id)
|
|
|
|
lock_session = db_api.get_session(autocommit=False)
|
|
if self.repositories.check_quota_met(
|
|
context.session,
|
|
lock_session,
|
|
data_models.Member,
|
|
member.project_id):
|
|
lock_session.rollback()
|
|
raise exceptions.QuotaException
|
|
|
|
try:
|
|
member_dict = db_prepare.create_member(member.to_dict(
|
|
render_unsets=True), self.pool_id)
|
|
self._test_lb_and_listener_statuses(lock_session)
|
|
|
|
db_member = self.repositories.member.create(lock_session,
|
|
**member_dict)
|
|
db_new_member = self._get_db_member(lock_session, db_member.id)
|
|
lock_session.commit()
|
|
except oslo_exc.DBDuplicateEntry as de:
|
|
lock_session.rollback()
|
|
if ['id'] == de.columns:
|
|
raise exceptions.IDAlreadyExists()
|
|
|
|
raise exceptions.DuplicateMemberEntry(
|
|
ip_address=member_dict.get('ip_address'),
|
|
port=member_dict.get('protocol_port'))
|
|
except Exception:
|
|
with excutils.save_and_reraise_exception():
|
|
lock_session.rollback()
|
|
|
|
try:
|
|
LOG.info("Sending Creation of Member %s to handler",
|
|
db_member.id)
|
|
self.handler.create(db_member)
|
|
except Exception:
|
|
for listener_id in self._get_affected_listener_ids(
|
|
context.session):
|
|
with excutils.save_and_reraise_exception(reraise=False):
|
|
self.repositories.listener.update(
|
|
context.session, listener_id,
|
|
operating_status=constants.ERROR)
|
|
return self._convert_db_to_type(db_new_member,
|
|
member_types.MemberResponse)
|
|
|
|
@wsme_pecan.wsexpose(member_types.MemberResponse,
|
|
wtypes.text, body=member_types.MemberPUT,
|
|
status_code=202)
|
|
def put(self, id, member):
|
|
"""Updates a pool member."""
|
|
context = pecan.request.context.get('octavia_context')
|
|
db_member = self._get_db_member(context.session, id)
|
|
self._test_lb_and_listener_statuses(context.session, member=db_member)
|
|
|
|
try:
|
|
LOG.info("Sending Update of Member %s to handler", id)
|
|
self.handler.update(db_member, member)
|
|
except Exception:
|
|
with excutils.save_and_reraise_exception(reraise=False):
|
|
for listener_id in self._get_affected_listener_ids(
|
|
context.session, db_member):
|
|
self.repositories.listener.update(
|
|
context.session, listener_id,
|
|
operating_status=constants.ERROR)
|
|
db_member = self._get_db_member(context.session, id)
|
|
return self._convert_db_to_type(db_member, member_types.MemberResponse)
|
|
|
|
@wsme_pecan.wsexpose(None, wtypes.text, status_code=202)
|
|
def delete(self, id):
|
|
"""Deletes a pool member."""
|
|
context = pecan.request.context.get('octavia_context')
|
|
db_member = self._get_db_member(context.session, id)
|
|
self._test_lb_and_listener_statuses(context.session, member=db_member)
|
|
|
|
try:
|
|
LOG.info("Sending Deletion of Member %s to handler",
|
|
db_member.id)
|
|
self.handler.delete(db_member)
|
|
except Exception:
|
|
with excutils.save_and_reraise_exception(reraise=False):
|
|
for listener_id in self._get_affected_listener_ids(
|
|
context.session, db_member):
|
|
self.repositories.listener.update(
|
|
context.session, listener_id,
|
|
operating_status=constants.ERROR)
|
|
db_member = self.repositories.member.get(context.session, id=id)
|
|
return self._convert_db_to_type(db_member, member_types.MemberResponse)
|