octavia/octavia/controller/worker/tasks/database_tasks.py

858 lines
31 KiB
Python

# Copyright 2015 Hewlett-Packard Development Company, L.P.
#
# 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
from oslo_utils import uuidutils
from taskflow import task
from taskflow.types import failure
from octavia.common import constants
from octavia.common import data_models
from octavia.common import exceptions
from octavia.db import api as db_apis
from octavia.db import repositories as repo
from octavia.i18n import _LW
LOG = logging.getLogger(__name__)
class BaseDatabaseTask(task.Task):
"""Base task to load drivers common to the tasks."""
def __init__(self, **kwargs):
self.repos = repo.Repositories()
self.amphora_repo = repo.AmphoraRepository()
self.health_mon_repo = repo.HealthMonitorRepository()
self.listener_repo = repo.ListenerRepository()
self.loadbalancer_repo = repo.LoadBalancerRepository()
self.member_repo = repo.MemberRepository()
self.pool_repo = repo.PoolRepository()
super(BaseDatabaseTask, self).__init__(**kwargs)
class CreateAmphoraInDB(BaseDatabaseTask):
"""Task to create an initial amphora in the Database."""
def execute(self, *args, **kwargs):
"""Creates an pending create amphora record in the database.
:returns: The amphora object created
"""
amphora = self.amphora_repo.create(db_apis.get_session(),
id=uuidutils.generate_uuid(),
status=constants.PENDING_CREATE)
LOG.debug("Created Amphora in DB with id %s" % amphora.id)
return amphora.id
def revert(self, result, *args, **kwargs):
"""Revert by storing the amphora in error state in the DB
In a future version we might change the status to DELETED
if deleting the amphora was successful
"""
if isinstance(result, failure.Failure):
# This task's execute failed, so nothing needed to be done to
# revert
return
# At this point the revert is being called because another task
# executed after this failed so we will need to do something and
# result is the amphora's id
LOG.warn(_LW("Reverting create amphora in DB for amp id %s "), result)
# Delete the amphora for now. May want to just update status later
self.amphora_repo.delete(db_apis.get_session(), id=result)
class MarkLBAmphoraeDeletedInDB(BaseDatabaseTask):
"""Task to mark a list of amphora deleted in the Database."""
def execute(self, loadbalancer):
"""Update amphorae statuses to DELETED in the database.
"""
for amp in loadbalancer.amphorae:
LOG.debug(_LW("Marking amphora %s DELETED ") % amp.id)
self.amphora_repo.update(db_apis.get_session(),
id=amp.id, status=constants.DELETED)
class DeleteHealthMonitorInDB(BaseDatabaseTask):
"""Delete the health monitor in the DB.
Since sqlalchemy will likely retry by itself always revert if it fails
"""
def execute(self, pool_id):
"""Delete the health monitor in DB
:param health_mon_id: The health monitor id to delete
:returns: None
"""
LOG.debug("DB delete health monitor for id: %s " % pool_id)
self.health_mon_repo.delete(db_apis.get_session(), pool_id=pool_id)
def revert(self, pool_id, *args, **kwargs):
"""Mark the health monitor ERROR since the mark active couldn't happen
:returns: None
"""
LOG.warn(_LW("Reverting mark health monitor delete in DB "
"for health monitor on pool with id %s"), pool_id)
# TODO(johnsom) fix this
# self.health_mon_repo.update(db_apis.get_session(), health_mon.id,
# provisioning_status=constants.ERROR)
class DeleteMemberInDB(BaseDatabaseTask):
"""Delete the member in the DB.
Since sqlalchemy will likely retry by itself always revert if it fails
"""
def execute(self, member_id):
"""Delete the member in the DB
:param member_id: The member ID to be deleted
:returns: None
"""
LOG.debug("DB delete member for id: %s " %
member_id)
self.member_repo.delete(db_apis.get_session(), id=member_id)
def revert(self, member_id, *args, **kwargs):
"""Mark the member ERROR since the delete couldn't happen
:returns: None
"""
LOG.warn(_LW("Reverting delete in DB "
"for member id %s"), member_id)
# TODO(johnsom) fix this
# self.member_repo.update(db_apis.get_session(), member.id,
# operating_status=constants.ERROR)
class DeleteListenerInDB(BaseDatabaseTask):
"""Delete the listener in the DB."""
def execute(self, listener):
"""Delete the listener in DB
:param listener: The listener to delete
:returns: None
"""
LOG.debug(_LW("Delete in DB for listener id: %s") % listener.id)
self.listener_repo.delete(db_apis.get_session(), id=listener.id)
def revert(self, listener_id, *args, **kwargs):
"""Mark the listener ERROR since the listener didn't delete
:returns: None
"""
LOG.warn(_LW(
"Reverting mark listener delete in DB for listener id %s"),
listener_id)
class DeletePoolInDB(BaseDatabaseTask):
"""Delete the pool in the DB.
Since sqlalchemy will likely retry by itself always revert if it fails
"""
def execute(self, pool):
"""Delete the pool in DB
:param pool: The pool to be deleted
:returns: None
"""
LOG.debug("Delete in DB for pool id: %s " %
pool.id)
self.pool_repo.delete(db_apis.get_session(), id=pool.id)
def revert(self, pool_id, *args, **kwargs):
"""Mark the pool ERROR since the delete couldn't happen
:returns: None
"""
LOG.warn(_LW("Reverting delete in DB "
"for pool id %s"), pool_id)
# TODO(johnsom) Fix this
# self.pool_repo.update(db_apis.get_session(), pool.id,
# operating_status=constants.ERROR)
class ReloadAmphora(BaseDatabaseTask):
"""Get an amphora object from the database."""
def execute(self, amphora_id):
"""Get an amphora object from the database.
:param amphora_id: The amphora ID to lookup
:returns: The amphora object
"""
LOG.debug("Get amphora from DB for amphora id: %s " %
amphora_id)
return self.amphora_repo.get(db_apis.get_session(), id=amphora_id)
class ReloadLoadBalancer(BaseDatabaseTask):
"""Get an load balancer object from the database."""
def execute(self, loadbalancer_id, *args, **kwargs):
"""Get an load balancer object from the database.
:param loadbalancer_id: The load balancer ID to lookup
:returns: The load balancer object
"""
LOG.debug("Get load balancer from DB for load balancer id: %s " %
loadbalancer_id)
return self.loadbalancer_repo.get(db_apis.get_session(),
id=loadbalancer_id)
class UpdateVIPAfterAllocation(BaseDatabaseTask):
def execute(self, loadbalancer_id, vip):
self.repos.vip.update(db_apis.get_session(), loadbalancer_id,
port_id=vip.port_id, subnet_id=vip.subnet_id,
ip_address=vip.ip_address)
return self.repos.load_balancer.get(db_apis.get_session(),
id=loadbalancer_id)
class UpdateAmphoraVIPData(BaseDatabaseTask):
def execute(self, amps_data):
for amp_data in amps_data:
self.repos.amphora.update(db_apis.get_session(), amp_data.id,
vrrp_ip=amp_data.vrrp_ip,
ha_ip=amp_data.ha_ip,
vrrp_port_id=amp_data.vrrp_port_id,
ha_port_id=amp_data.ha_port_id)
class AssociateFailoverAmphoraWithLBID(BaseDatabaseTask):
def execute(self, amphora_id, loadbalancer_id):
self.repos.amphora.associate(db_apis.get_session(),
load_balancer_id=loadbalancer_id,
amphora_id=amphora_id)
def revert(self, amphora_id):
self.repos.amphora.update(db_apis.get_session(), amphora_id,
loadbalancer_id=None)
class MapLoadbalancerToAmphora(BaseDatabaseTask):
"""Maps and assigns a load balancer to an amphora in the database."""
def execute(self, loadbalancer_id):
"""Allocates an Amphora for the load balancer in the database.
:param lb_id: The load balancer id to map to an amphora
:returns: Amphora ID if one was allocated, None if it was
unable to allocate an Amphora
"""
LOG.debug("Allocating an Amphora for load balancer with id %s" %
loadbalancer_id)
amp = self.amphora_repo.allocate_and_associate(
db_apis.get_session(),
loadbalancer_id)
if amp is None:
LOG.debug("No Amphora available for load balancer with id %s" %
loadbalancer_id)
raise exceptions.NoReadyAmphoraeException()
LOG.debug("Allocated Amphora with id %s for load balancer "
"with id %s" % (amp.id, loadbalancer_id))
return amp.id
class MarkAmphoraAllocatedInDB(BaseDatabaseTask):
"""Will mark an amphora as allocated to a load balancer in the database.
Assume sqlalchemy made sure the DB got
retried sufficiently - so just abort
"""
def execute(self, amphora, loadbalancer_id):
"""Mark amphora as allocated to a load balancer in DB."""
LOG.debug("Mark ALLOCATED in DB for amphora: %s with compute id %s "
"for load balancer: %s" %
(amphora.id, amphora.compute_id, loadbalancer_id))
self.amphora_repo.update(db_apis.get_session(), amphora.id,
status=constants.AMPHORA_ALLOCATED,
compute_id=amphora.compute_id,
lb_network_ip=amphora.lb_network_ip,
load_balancer_id=loadbalancer_id)
def revert(self, result, amphora, loadbalancer_id, *args, **kwargs):
"""Mark the amphora as broken and ready to be cleaned up."""
if isinstance(result, failure.Failure):
return
LOG.warn(_LW("Reverting mark amphora ready in DB for amp "
"id %(amp)s and compute id %(comp)s"),
{'amp': amphora.id, 'comp': amphora.compute_id})
self.amphora_repo.update(db_apis.get_session(), amphora.id,
status=constants.ERROR)
class MarkAmphoraBootingInDB(BaseDatabaseTask):
"""Mark the amphora as booting in the database."""
def execute(self, amphora_id, compute_id):
"""Mark amphora booting in DB."""
LOG.debug("Mark BOOTING in DB for amphora: %s with compute id %s" %
(amphora_id, compute_id))
self.amphora_repo.update(db_apis.get_session(), amphora_id,
status=constants.AMPHORA_BOOTING,
compute_id=compute_id)
def revert(self, result, amphora_id, compute_id, *args, **kwargs):
"""Mark the amphora as broken and ready to be cleaned up."""
if isinstance(result, failure.Failure):
return
LOG.warn(_LW("Reverting mark amphora booting in DB for amp "
"id %(amp)s and compute id %(comp)s"),
{'amp': amphora_id, 'comp': compute_id})
self.amphora_repo.update(db_apis.get_session(), amphora_id,
status=constants.ERROR,
compute_id=compute_id)
class MarkAmphoraDeletedInDB(BaseDatabaseTask):
"""Mark the amphora deleted in the DB.
Since sqlalchemy will likely retry by itself always revert if it fails
"""
def execute(self, amphora):
"""Mark the amphora as pending delete in DB."""
LOG.debug("Mark DELETED in DB for amphora: %s "
"with compute id %s" %
(amphora.id, amphora.compute_id))
self.amphora_repo.update(db_apis.get_session(), amphora.id,
status=constants.DELETED)
def revert(self, amphora, *args, **kwargs):
"""Mark the amphora as broken and ready to be cleaned up."""
LOG.warn(_LW("Reverting mark amphora deleted in DB "
"for amp id %(amp)s and compute id %(comp)s"),
{'amp': amphora.id, 'comp': amphora.compute_id})
self.amphora_repo.update(db_apis.get_session(), amphora.id,
status=constants.ERROR)
class MarkAmphoraPendingDeleteInDB(BaseDatabaseTask):
"""Mark the amphora pending delete in the DB.
Since sqlalchemy will likely retry by itself always revert if it fails
"""
def execute(self, amphora):
"""Mark the amphora as pending delete in DB."""
LOG.debug("Mark PENDING DELETE in DB for amphora: %s "
"with compute id %s" %
(amphora.id, amphora.compute_id))
self.amphora_repo.update(db_apis.get_session(), amphora.id,
status=constants.PENDING_DELETE)
def revert(self, amphora, *args, **kwargs):
"""Mark the amphora as broken and ready to be cleaned up."""
LOG.warn(_LW("Reverting mark amphora pending delete in DB "
"for amp id %(amp)s and compute id %(comp)s"),
{'amp': amphora.id, 'comp': amphora.compute_id})
self.amphora_repo.update(db_apis.get_session(), amphora.id,
status=constants.ERROR)
class MarkAmphoraPendingUpdateInDB(BaseDatabaseTask):
"""Mark the amphora pending update in the DB.
Since sqlalchemy will likely retry by itself always revert if it fails
"""
def execute(self, amphora):
"""Mark the amphora as pending upate in DB."""
LOG.debug("Mark PENDING UPDATE in DB for amphora: %s "
"with compute id %s" %
(amphora.id, amphora.compute_id))
self.amphora_repo.update(db_apis.get_session(), amphora.id,
status=constants.PENDING_UPDATE)
def revert(self, amphora, *args, **kwargs):
"""Mark the amphora as broken and ready to be cleaned up."""
LOG.warn(_LW("Reverting mark amphora pending update in DB "
"for amp id %(amp)s and compute id %(comp)s"),
{'amp': amphora.id, 'comp': amphora.compute_id})
self.amphora_repo.update(db_apis.get_session(), amphora.id,
status=constants.ERROR)
class MarkAmphoraReadyInDB(BaseDatabaseTask):
"""This task will mark an amphora as ready in the database.
Assume sqlalchemy made sure the DB got
retried sufficiently - so just abort
"""
def execute(self, amphora):
"""Mark amphora as ready in DB."""
LOG.debug("Mark BOOTING in DB for amphora: %s with compute id %s" %
(amphora.id, amphora.compute_id))
self.amphora_repo.update(db_apis.get_session(), amphora.id,
status=constants.AMPHORA_READY,
compute_id=amphora.compute_id,
lb_network_ip=amphora.lb_network_ip)
def revert(self, amphora, *args, **kwargs):
"""Mark the amphora as broken and ready to be cleaned up."""
LOG.warn(_LW("Reverting mark amphora ready in DB for amp "
"id %(amp)s and compute id %(comp)s"),
{'amp': amphora.id, 'comp': amphora.compute_id})
self.amphora_repo.update(db_apis.get_session(), amphora.id,
status=constants.ERROR,
compute_id=amphora.compute_id,
lb_network_ip=amphora.lb_network_ip)
class UpdateAmphoraComputeId(BaseDatabaseTask):
def execute(self, amphora_id, compute_id):
self.amphora_repo.update(db_apis.get_session(), amphora_id,
compute_id=compute_id)
return self.amphora_repo.get(db_apis.get_session(), id=amphora_id)
class UpdateAmphoraInfo(BaseDatabaseTask):
def execute(self, amphora_id, compute_obj):
self.amphora_repo.update(db_apis.get_session(), amphora_id,
lb_network_ip=compute_obj.lb_network_ip)
return self.amphora_repo.get(db_apis.get_session(), id=amphora_id)
class MarkLBActiveInDB(BaseDatabaseTask):
"""Mark the load balancer active in the DB.
Since sqlalchemy will likely retry by itself always revert if it fails
"""
def execute(self, loadbalancer):
"""Mark the load balancer as active in DB."""
LOG.debug("Mark ACTIVE in DB for load balancer id: %s" %
loadbalancer.id)
self.loadbalancer_repo.update(db_apis.get_session(),
loadbalancer.id,
provisioning_status=constants.ACTIVE)
def revert(self, loadbalancer, *args, **kwargs):
"""Mark the load balancer as broken and ready to be cleaned up."""
LOG.warn(_LW("Reverting mark load balancer deleted in DB "
"for load balancer id %s"), loadbalancer.id)
self.loadbalancer_repo.update(db_apis.get_session(),
loadbalancer.id,
provisioning_status=constants.ERROR)
class MarkLBDeletedInDB(BaseDatabaseTask):
"""Mark the load balancer deleted in the DB.
Since sqlalchemy will likely retry by itself always revert if it fails
"""
def execute(self, loadbalancer):
"""Mark the load balancer as deleted in DB."""
LOG.debug("Mark DELETED in DB for load balancer id: %s" %
loadbalancer.id)
self.loadbalancer_repo.update(db_apis.get_session(),
loadbalancer.id,
provisioning_status=constants.DELETED)
def revert(self, loadbalancer, *args, **kwargs):
"""Mark the load balancer as broken and ready to be cleaned up."""
LOG.warn(_LW("Reverting mark load balancer deleted in DB "
"for load balancer id %s"), loadbalancer.id)
self.loadbalancer_repo.update(db_apis.get_session(),
loadbalancer.id,
provisioning_status=constants.ERROR)
class MarkLBPendingDeleteInDB(BaseDatabaseTask):
"""Mark the load balancer pending delete in the DB.
Since sqlalchemy will likely retry by itself always revert if it fails
"""
def execute(self, loadbalancer):
"""Mark the load balancer as pending delete in DB."""
LOG.debug("Mark PENDING DELETE in DB for load balancer id: %s" %
loadbalancer.id)
self.loadbalancer_repo.update(db_apis.get_session(),
loadbalancer.id,
provisioning_status=(constants.
PENDING_DELETE))
def revert(self, loadbalancer, *args, **kwargs):
"""Mark the load balancer as broken and ready to be cleaned up."""
LOG.warn(_LW("Reverting mark load balancer pending delete in DB "
"for load balancer id %s"), loadbalancer.id)
self.loadbalancer_repo.update(db_apis.get_session(),
loadbalancer.id,
provisioning_status=constants.ERROR)
class MarkLBAndListenerActiveInDB(BaseDatabaseTask):
"""Mark the load balancer and listener active in the DB.
Since sqlalchemy will likely retry by itself always revert if it fails
"""
def execute(self, loadbalancer, listener):
"""Mark the load balancer and listener as active in DB."""
LOG.debug("Mark ACTIVE in DB for load balancer id: %s "
"and listener id: %s" % (loadbalancer.id, listener.id))
self.loadbalancer_repo.update(db_apis.get_session(),
loadbalancer.id,
provisioning_status=constants.ACTIVE)
self.listener_repo.update(db_apis.get_session(), listener.id,
provisioning_status=constants.ACTIVE)
def revert(self, loadbalancer, listener, *args, **kwargs):
"""Mark the load balancer and listener as broken."""
LOG.warn(_LW("Reverting mark load balancer "
"and listener active in DB "
"for load balancer id %(LB)s and "
"listener id: %(list)s"),
{'LB': loadbalancer.id, 'list': listener.id})
self.loadbalancer_repo.update(db_apis.get_session(),
loadbalancer.id,
provisioning_status=constants.ERROR)
self.listener_repo.update(db_apis.get_session(), listener.id,
provisioning_status=constants.ERROR)
class MarkListenerActiveInDB(BaseDatabaseTask):
"""Mark the listener active in the DB.
Since sqlalchemy will likely retry by itself always revert if it fails
"""
def execute(self, listener):
"""Mark the listener as active in DB
:param listener: The listener to be marked deleted
:returns: None
"""
LOG.debug("Mark ACTIVE in DB for listener id: %s " %
listener.id)
self.listener_repo.update(db_apis.get_session(), listener.id,
provisioning_status=constants.ACTIVE)
def revert(self, listener, *args, **kwargs):
"""Mark the listener ERROR since the delete couldn't happen
:returns: None
"""
LOG.warn(_LW("Reverting mark listener deleted in DB "
"for listener id %s"), listener.id)
self.listener_repo.update(db_apis.get_session(), listener.id,
provisioning_status=constants.ERROR)
class MarkListenerDeletedInDB(BaseDatabaseTask):
"""Mark the listener deleted in the DB.
Since sqlalchemy will likely retry by itself always revert if it fails
"""
def execute(self, listener):
"""Mark the listener as deleted in DB
:param listener: The listener to be marked deleted
:returns: None
"""
LOG.debug("Mark DELETED in DB for listener id: %s " %
listener.id)
self.listener_repo.update(db_apis.get_session(), listener.id,
provisioning_status=constants.DELETED)
def revert(self, listener, *args, **kwargs):
"""Mark the listener ERROR since the delete couldn't happen
:returns: None
"""
LOG.warn(_LW("Reverting mark listener deleted in DB "
"for listener id %s"), listener.id)
self.listener_repo.update(db_apis.get_session(), listener.id,
provisioning_status=constants.ERROR)
class MarkListenerPendingDeleteInDB(BaseDatabaseTask):
"""Mark the listener pending delete in the DB.
Since sqlalchemy will likely retry by itself always revert if it fails
"""
def execute(self, listener):
"""Mark the listener as pending delete in DB."""
LOG.debug("Mark PENDING DELETE in DB for listener id: %s" %
listener.id)
self.listener_repo.update(db_apis.get_session(), listener.id,
provisioning_status=constants.PENDING_DELETE)
def revert(self, listener, *args, **kwargs):
"""Mark the listener as broken and ready to be cleaned up."""
LOG.warn(_LW("Reverting mark listener pending delete in DB "
"for listener id %s"), listener.id)
self.listener_repo.update(db_apis.get_session(), listener.id,
provisioning_status=constants.ERROR)
class UpdateLoadbalancerInDB(BaseDatabaseTask):
"""Update the listener in the DB.
Since sqlalchemy will likely retry by itself always revert if it fails
"""
def execute(self, loadbalancer, update_dict):
"""Update the loadbalancer in the DB
:param loadbalancer: The listener to be updated
:param update_dict: The dictionary of updates to apply
:returns: None
"""
LOG.debug("Update DB for listener id: %s " %
loadbalancer.id)
self.loadbalancer_repo.update(db_apis.get_session(), loadbalancer.id,
**update_dict)
def revert(self, listener, *args, **kwargs):
"""Mark the listener ERROR since the update couldn't happen
:returns: None
"""
LOG.warn(_LW("Reverting update listener in DB "
"for listener id %s"), listener.id)
# TODO(johnsom) fix this to set the upper ojects to ERROR
self.listener_repo.update(db_apis.get_session(), listener.id,
enabled=0)
class UpdateHealthMonInDB(BaseDatabaseTask):
"""Update the health monitor in the DB.
Since sqlalchemy will likely retry by itself always revert if it fails
"""
def execute(self, health_mon, update_dict):
"""Update the health monitor in the DB
:param health_mon: The health monitor to be updated
:param update_dict: The dictionary of updates to apply
:returns: None
"""
LOG.debug("Update DB for health monitor id: %s " %
health_mon.pool_id)
self.health_mon_repo.update(db_apis.get_session(), health_mon.pool_id,
**update_dict)
def revert(self, health_mon, *args, **kwargs):
"""Mark the health monitor ERROR since the update couldn't happen
:returns: None
"""
LOG.warn(_LW("Reverting update health monitor in DB "
"for health monitor id %s"), health_mon.pool_id)
# TODO(johnsom) fix this to set the upper ojects to ERROR
self.health_mon_repo.update(db_apis.get_session(), health_mon.pool_id,
enabled=0)
class UpdateListenerInDB(BaseDatabaseTask):
"""Update the listener in the DB.
Since sqlalchemy will likely retry by itself always revert if it fails
"""
def execute(self, listener, update_dict):
"""Update the listener in the DB
:param listener: The listener to be updated
:param update_dict: The dictionary of updates to apply
:returns: None
"""
LOG.debug("Update DB for listener id: %s " %
listener.id)
self.listener_repo.update(db_apis.get_session(), listener.id,
**update_dict)
def revert(self, listener, *args, **kwargs):
"""Mark the listener ERROR since the update couldn't happen
:returns: None
"""
LOG.warn(_LW("Reverting update listener in DB "
"for listener id %s"), listener.id)
# TODO(johnsom) fix this to set the upper ojects to ERROR
self.listener_repo.update(db_apis.get_session(), listener.id,
enabled=0)
class UpdateMemberInDB(BaseDatabaseTask):
"""Update the member in the DB.
Since sqlalchemy will likely retry by itself always revert if it fails
"""
def execute(self, member, update_dict):
"""Update the member in the DB
:param member: The member to be updated
:param update_dict: The dictionary of updates to apply
:returns: None
"""
LOG.debug("Update DB for member id: %s " %
member.id)
self.member_repo.update(db_apis.get_session(), member.id,
**update_dict)
def revert(self, member, *args, **kwargs):
"""Mark the member ERROR since the update couldn't happen
:returns: None
"""
LOG.warn(_LW("Reverting update member in DB "
"for member id %s"), member.id)
# TODO(johnsom) fix this to set the upper ojects to ERROR
self.member_repo.update(db_apis.get_session(), member.id,
enabled=0)
class UpdatePoolInDB(BaseDatabaseTask):
"""Update the pool in the DB.
Since sqlalchemy will likely retry by itself always revert if it fails
"""
def execute(self, pool, update_dict):
"""Update the pool in the DB
:param pool: The pool to be updated
:param update_dict: The dictionary of updates to apply
:returns: None
"""
LOG.debug("Update DB for pool id: %s " %
pool.id)
self.pool_repo.update(db_apis.get_session(), pool.id,
**update_dict)
def revert(self, pool, *args, **kwargs):
"""Mark the pool ERROR since the update couldn't happen
:returns: None
"""
LOG.warn(_LW("Reverting update pool in DB "
"for pool id %s"), pool.id)
# TODO(johnsom) fix this to set the upper ojects to ERROR
self.pool_repo.update(db_apis.get_session(), pool.id,
enabled=0)
class GetUpdatedFailoverAmpNetworkDetailsAsList(BaseDatabaseTask):
"""Task to retrieve amphora network details."""
def execute(self, amphora_id, amphora):
amp_net_configs = [data_models.Amphora(
id=amphora_id,
vrrp_ip=amphora.vrrp_ip,
ha_ip=amphora.ha_ip,
vrrp_port_id=amphora.vrrp_port_id,
ha_port_id=amphora.ha_port_id)]
return amp_net_configs
class GetListenersFromLoadbalancer(BaseDatabaseTask):
"""Task to pull the listener from a loadbalancer."""
def execute(self, loadbalancer):
listeners = []
for listener in loadbalancer.listeners:
l = self.listener_repo.get(db_apis.get_session(), id=listener.id)
listeners.append(l)
return listeners
class GetVipFromLoadbalancer(BaseDatabaseTask):
"""Task to pull the vip from a loadbalancer."""
def execute(self, loadbalancer):
return loadbalancer.vip