def get_delete_pool_flow(self):
"""Create a flow to delete a pool
:returns: The flow for deleting a pool
"""
delete_pool_flow = linear_flow.Flow(constants.DELETE_POOL_FLOW)
delete_pool_flow.add(lifecycle_tasks.PoolToErrorOnRevertTask(
requires=[constants.POOL,
constants.LISTENERS,
constants.LOADBALANCER]))
delete_pool_flow.add(database_tasks.MarkPoolPendingDeleteInDB(
requires=constants.POOL))
delete_pool_flow.add(database_tasks.CountPoolChildrenForQuota(
requires=constants.POOL, provides=constants.POOL_CHILD_COUNT))
delete_pool_flow.add(model_tasks.DeleteModelObject(
rebind={constants.OBJECT: constants.POOL}))
# Get VThunder details from database
delete_pool_flow.add(a10_database_tasks.GetVThunderByLoadBalancer(
requires=constants.LOADBALANCER,
provides=a10constants.VTHUNDER))
delete_pool_flow.add(virtual_port_tasks.ListenersUpdate(
requires=[constants.LOADBALANCER, constants.LISTENERS, a10constants.VTHUNDER]))
delete_pool_flow.add(persist_tasks.DeleteSessionPersistence(
requires=[a10constants.VTHUNDER, constants.POOL]))
delete_pool_flow.add(service_group_tasks.PoolDelete(
requires=[constants.POOL, a10constants.VTHUNDER]))
delete_pool_flow.add(database_tasks.DeletePoolInDB(
requires=constants.POOL))
delete_pool_flow.add(database_tasks.DecrementPoolQuota(
requires=[constants.POOL, constants.POOL_CHILD_COUNT]))
delete_pool_flow.add(database_tasks.MarkLBAndListenersActiveInDB(
requires=[constants.LOADBALANCER, constants.LISTENERS]))
return delete_pool_flow
def get_delete_pool_rack_flow(self, members, health_mon, store):
"""Create a flow to delete a pool rack
:returns: The flow for deleting a pool
"""
delete_pool_flow = linear_flow.Flow(constants.DELETE_POOL_FLOW)
delete_pool_flow.add(lifecycle_tasks.PoolToErrorOnRevertTask(
requires=[constants.POOL,
constants.LISTENERS,
constants.LOADBALANCER]))
delete_pool_flow.add(database_tasks.MarkPoolPendingDeleteInDB(
requires=constants.POOL))
delete_pool_flow.add(database_tasks.CountPoolChildrenForQuota(
requires=constants.POOL, provides=constants.POOL_CHILD_COUNT))
delete_pool_flow.add(model_tasks.DeleteModelObject(
rebind={constants.OBJECT: constants.POOL}))
# Get VThunder details from database
delete_pool_flow.add(a10_database_tasks.GetVThunderByLoadBalancer(
requires=constants.LOADBALANCER,
provides=a10constants.VTHUNDER))
delete_pool_flow.add(virtual_port_tasks.ListenerUpdateForPool(
requires=[constants.LOADBALANCER, constants.LISTENER, a10constants.VTHUNDER]))
delete_pool_flow.add(persist_tasks.DeleteSessionPersistence(
requires=[a10constants.VTHUNDER, constants.POOL]))
delete_pool_flow.add(vthunder_tasks.SetupDeviceNetworkMap(
requires=a10constants.VTHUNDER,
provides=a10constants.VTHUNDER))
# Device Flavor
delete_pool_flow.add(a10_database_tasks.GetFlavorData(
rebind={a10constants.LB_RESOURCE: constants.LOADBALANCER},
provides=constants.FLAVOR))
delete_pool_flow.add(vthunder_tasks.GetVthunderConfByFlavor(
requires=(constants.LOADBALANCER, a10constants.VTHUNDER_CONFIG,
a10constants.DEVICE_CONFIG_DICT),
rebind={constants.FLAVOR_DATA: constants.FLAVOR},
provides=(a10constants.VTHUNDER_CONFIG, a10constants.USE_DEVICE_FLAVOR)))
delete_pool_flow.add(a10_network_tasks.GetPoolsOnThunder(
requires=[a10constants.VTHUNDER, a10constants.USE_DEVICE_FLAVOR],
provides=a10constants.POOLS))
# Delete pool children
delete_pool_flow.add(self._get_delete_health_monitor_vthunder_subflow(health_mon))
delete_pool_flow.add(self._get_delete_member_vthunder_subflow(members, store))
delete_pool_flow.add(service_group_tasks.PoolDelete(
requires=[constants.POOL, a10constants.VTHUNDER]))
delete_pool_flow.add(database_tasks.DeletePoolInDB(
requires=constants.POOL))
delete_pool_flow.add(database_tasks.DecrementPoolQuota(
requires=[constants.POOL, constants.POOL_CHILD_COUNT]))
delete_pool_flow.add(database_tasks.MarkLBAndListenersActiveInDB(
requires=[constants.LOADBALANCER, constants.LISTENERS]))
delete_pool_flow.add(vthunder_tasks.WriteMemory(
requires=a10constants.VTHUNDER))
delete_pool_flow.add(a10_database_tasks.SetThunderUpdatedAt(
requires=a10constants.VTHUNDER))
return delete_pool_flow
def get_cascade_delete_pool_internal_flow(
self, pool_name, members, pool_listener_name, health_mon):
"""Create a flow to delete a pool, etc.
:returns: The flow for deleting a pool
"""
store = {}
delete_pool_flow = linear_flow.Flow(constants.DELETE_POOL_FLOW)
# health monitor should cascade
# members should cascade
delete_pool_flow.add(database_tasks.MarkPoolPendingDeleteInDB(
name='mark_pool_pending_delete_in_db_' + pool_name,
requires=constants.POOL,
rebind={constants.POOL: pool_name}))
delete_pool_flow.add(database_tasks.CountPoolChildrenForQuota(
name='count_pool_children_for_quota_' + pool_name,
requires=constants.POOL,
provides=constants.POOL_CHILD_COUNT,
rebind={constants.POOL: pool_name}))
delete_pool_flow.add(virtual_port_tasks.ListenerUpdateForPool(
name='listener_update_for_pool_' + pool_name,
requires=[constants.LOADBALANCER, constants.LISTENER, a10constants.VTHUNDER],
rebind={constants.LISTENER: pool_listener_name}))
delete_pool_flow.add(persist_tasks.DeleteSessionPersistence(
name='delete_session_persistence_' + pool_name,
requires=[a10constants.VTHUNDER, constants.POOL],
rebind={constants.POOL: pool_name}))
delete_pool_flow.add(model_tasks.DeleteModelObject(
name='delete_model_object_' + pool_name,
rebind={constants.OBJECT: pool_name}))
delete_pool_flow.add(a10_network_tasks.GetPoolsOnThunder(
name='get_pools_on_thunder_' + pool_name,
requires=[a10constants.VTHUNDER, a10constants.USE_DEVICE_FLAVOR],
provides=a10constants.POOLS))
# Delete pool children
delete_pool_flow.add(self._get_delete_health_monitor_vthunder_subflow(health_mon, True))
delete_pool_flow.add(self._get_delete_member_vthunder_subflow(members, store, pool_name))
delete_pool_flow.add(service_group_tasks.PoolDelete(
name='pool_delete_' + pool_name,
requires=[constants.POOL, a10constants.VTHUNDER],
rebind={constants.POOL: pool_name}))
delete_pool_flow.add(database_tasks.DeletePoolInDB(
name='delete_pool_in_db_' + pool_name,
requires=constants.POOL,
rebind={constants.POOL: pool_name}))
delete_pool_flow.add(database_tasks.DecrementPoolQuota(
name='decrement_pool_quota_' + pool_name,
requires=[constants.POOL, constants.POOL_CHILD_COUNT],
rebind={constants.POOL: pool_name}))
return (delete_pool_flow, store)
def get_delete_pool_flow(self, members, health_mon, store, topology):
"""Create a flow to delete a pool
:returns: The flow for deleting a pool
"""
delete_pool_flow = linear_flow.Flow(constants.DELETE_POOL_FLOW)
delete_pool_flow.add(
lifecycle_tasks.PoolToErrorOnRevertTask(requires=[
constants.POOL, constants.LISTENERS, constants.LOADBALANCER
]))
delete_pool_flow.add(
vthunder_tasks.VthunderInstanceBusy(
requires=a10constants.COMPUTE_BUSY))
delete_pool_flow.add(
database_tasks.MarkPoolPendingDeleteInDB(requires=constants.POOL))
delete_pool_flow.add(
database_tasks.CountPoolChildrenForQuota(
requires=constants.POOL, provides=constants.POOL_CHILD_COUNT))
delete_pool_flow.add(
model_tasks.DeleteModelObject(
rebind={constants.OBJECT: constants.POOL}))
# Get VThunder details from database
delete_pool_flow.add(
a10_database_tasks.GetVThunderByLoadBalancer(
requires=constants.LOADBALANCER,
provides=a10constants.VTHUNDER))
if topology == constants.TOPOLOGY_ACTIVE_STANDBY:
delete_pool_flow.add(
vthunder_tasks.GetMasterVThunder(
name=a10constants.GET_MASTER_VTHUNDER,
requires=a10constants.VTHUNDER,
provides=a10constants.VTHUNDER))
delete_pool_flow.add(
virtual_port_tasks.ListenerUpdateForPool(requires=[
constants.LOADBALANCER, constants.LISTENER,
a10constants.VTHUNDER
]))
delete_pool_flow.add(
persist_tasks.DeleteSessionPersistence(
requires=[a10constants.VTHUNDER, constants.POOL]))
# Delete pool children
delete_pool_flow.add(
self._get_delete_health_monitor_vthunder_subflow(health_mon))
delete_pool_flow.add(
self._get_delete_member_vthunder_subflow(members, store))
delete_pool_flow.add(
service_group_tasks.PoolDelete(
requires=[constants.POOL, a10constants.VTHUNDER]))
delete_pool_flow.add(
database_tasks.DeletePoolInDB(requires=constants.POOL))
# Interface delete.
delete_pool_flow.add(
a10_database_tasks.GetLoadBalancerListByProjectID(
requires=a10constants.VTHUNDER,
provides=a10constants.LOADBALANCERS_LIST))
delete_pool_flow.add(
a10_database_tasks.GetMemberListByProjectID(
requires=a10constants.VTHUNDER,
provides=a10constants.MEMBER_LIST))
delete_pool_flow.add(
a10_network_tasks.CalculateDelta(
requires=(constants.LOADBALANCER,
a10constants.LOADBALANCERS_LIST,
a10constants.MEMBER_LIST),
provides=constants.DELTAS))
delete_pool_flow.add(
a10_network_tasks.HandleNetworkDeltas(
requires=constants.DELTAS, provides=constants.ADDED_PORTS))
delete_pool_flow.add(
vthunder_tasks.AmphoraePostNetworkUnplug(
requires=(constants.LOADBALANCER, constants.ADDED_PORTS,
a10constants.VTHUNDER)))
delete_pool_flow.add(
database_tasks.GetAmphoraeFromLoadbalancer(
requires=constants.LOADBALANCER_ID,
provides=constants.AMPHORA))
delete_pool_flow.add(
vthunder_tasks.VThunderComputeConnectivityWait(
requires=(a10constants.VTHUNDER, constants.AMPHORA)))
delete_pool_flow.add(
database_tasks.DecrementPoolQuota(
requires=[constants.POOL, constants.POOL_CHILD_COUNT]))
delete_pool_flow.add(
database_tasks.MarkLBAndListenersActiveInDB(
requires=[constants.LOADBALANCER, constants.LISTENERS]))
delete_pool_flow.add(
vthunder_tasks.WriteMemory(requires=a10constants.VTHUNDER))
delete_pool_flow.add(
a10_database_tasks.SetThunderUpdatedAt(
requires=a10constants.VTHUNDER))
return delete_pool_flow