def get_create_member_flow(self, topology):
"""Create a flow to create a member
:returns: The flow for creating a member
"""
create_member_flow = linear_flow.Flow(constants.CREATE_MEMBER_FLOW)
create_member_flow.add(
lifecycle_tasks.MemberToErrorOnRevertTask(requires=[
constants.MEMBER, constants.LISTENERS, constants.LOADBALANCER,
constants.POOL
]))
create_member_flow.add(
database_tasks.MarkMemberPendingCreateInDB(
requires=constants.MEMBER))
create_member_flow.add(
a10_database_tasks.GetVThunderByLoadBalancer(
requires=constants.LOADBALANCER,
provides=a10constants.VTHUNDER))
create_member_flow.add(
a10_database_tasks.GetLoadBalancerListByProjectID(
requires=a10constants.VTHUNDER,
provides=a10constants.LOADBALANCERS_LIST))
create_member_flow.add(
database_tasks.GetAmphoraeFromLoadbalancer(
requires=constants.LOADBALANCER, provides=constants.AMPHORA))
create_member_flow.add(
a10_network_tasks.CalculateDelta(
requires=(constants.LOADBALANCER,
a10constants.LOADBALANCERS_LIST),
provides=constants.DELTAS))
create_member_flow.add(
a10_network_tasks.HandleNetworkDeltas(
requires=constants.DELTAS, provides=constants.ADDED_PORTS))
# managing interface additions here
create_member_flow.add(
vthunder_tasks.AmphoraePostMemberNetworkPlug(
requires=(constants.LOADBALANCER, constants.ADDED_PORTS,
a10constants.VTHUNDER)))
create_member_flow.add(
vthunder_tasks.VThunderComputeConnectivityWait(
requires=(a10constants.VTHUNDER, constants.AMPHORA)))
create_member_flow.add(
vthunder_tasks.EnableInterfaceForMembers(requires=[
constants.ADDED_PORTS, constants.LOADBALANCER,
a10constants.VTHUNDER
]))
create_member_flow.add(self.handle_vrid_for_member_subflow())
# configure member flow for HA
if topology == constants.TOPOLOGY_ACTIVE_STANDBY:
create_member_flow.add(
a10_database_tasks.GetBackupVThunderByLoadBalancer(
name="get_backup_vThunder",
requires=constants.LOADBALANCER,
provides=a10constants.BACKUP_VTHUNDER))
create_member_flow.add(
vthunder_tasks.AmphoraePostMemberNetworkPlug(
name="backup_amphora_network_plug",
requires=[constants.ADDED_PORTS, constants.LOADBALANCER],
rebind={
a10constants.VTHUNDER: a10constants.BACKUP_VTHUNDER
}))
create_member_flow.add(
vthunder_tasks.VThunderComputeConnectivityWait(
name="backup_compute_conn_wait",
requires=constants.AMPHORA,
rebind={
a10constants.VTHUNDER: a10constants.BACKUP_VTHUNDER
}))
create_member_flow.add(
vthunder_tasks.EnableInterfaceForMembers(
name="backup_enable_interface",
requires=[constants.ADDED_PORTS, constants.LOADBALANCER],
rebind={
a10constants.VTHUNDER: a10constants.BACKUP_VTHUNDER
}))
create_member_flow.add(
a10_database_tasks.CountMembersWithIP(
requires=constants.MEMBER,
provides=a10constants.MEMBER_COUNT_IP))
create_member_flow.add(
a10_database_tasks.GetFlavorData(
rebind={a10constants.LB_RESOURCE: constants.LOADBALANCER},
provides=constants.FLAVOR))
create_member_flow.add(self.get_create_member_snat_pool_subflow())
create_member_flow.add(
server_tasks.MemberCreate(requires=(constants.MEMBER,
a10constants.VTHUNDER,
constants.POOL,
a10constants.MEMBER_COUNT_IP,
constants.FLAVOR)))
create_member_flow.add(
database_tasks.MarkMemberActiveInDB(requires=constants.MEMBER))
create_member_flow.add(
database_tasks.MarkPoolActiveInDB(requires=constants.POOL))
create_member_flow.add(
database_tasks.MarkLBAndListenersActiveInDB(
requires=(constants.LOADBALANCER, constants.LISTENERS)))
create_member_flow.add(
vthunder_tasks.WriteMemory(requires=a10constants.VTHUNDER))
create_member_flow.add(
a10_database_tasks.SetThunderUpdatedAt(
requires=a10constants.VTHUNDER))
return create_member_flow
def get_failover_flow(self,
role=constants.ROLE_STANDALONE,
load_balancer=None):
"""Creates a flow to failover a stale amphora
:returns: The flow for amphora failover
"""
failover_amphora_flow = linear_flow.Flow(
constants.FAILOVER_AMPHORA_FLOW)
failover_amphora_flow.add(
lifecycle_tasks.AmphoraToErrorOnRevertTask(
rebind={constants.AMPHORA: constants.FAILED_AMPHORA},
requires=constants.AMPHORA))
# Note: It seems intuitive to boot an amphora prior to deleting
# the old amphora, however this is a complicated issue.
# If the target host (due to anit-affinity) is resource
# constrained, this will fail where a post-delete will
# succeed. Since this is async with the API it would result
# in the LB ending in ERROR though the amps are still alive.
# Consider in the future making this a complicated
# try-on-failure-retry flow, or move upgrade failovers to be
# synchronous with the API. For now spares pool and act/stdby
# will mitigate most of this delay.
# Delete the old amphora
failover_amphora_flow.add(
database_tasks.MarkAmphoraPendingDeleteInDB(
rebind={constants.AMPHORA: constants.FAILED_AMPHORA},
requires=constants.AMPHORA))
failover_amphora_flow.add(
database_tasks.MarkAmphoraHealthBusy(
rebind={constants.AMPHORA: constants.FAILED_AMPHORA},
requires=constants.AMPHORA))
failover_amphora_flow.add(
compute_tasks.ComputeDelete(
rebind={constants.AMPHORA: constants.FAILED_AMPHORA},
requires=constants.AMPHORA))
failover_amphora_flow.add(
network_tasks.WaitForPortDetach(
rebind={constants.AMPHORA: constants.FAILED_AMPHORA},
requires=constants.AMPHORA))
failover_amphora_flow.add(
database_tasks.MarkAmphoraDeletedInDB(
rebind={constants.AMPHORA: constants.FAILED_AMPHORA},
requires=constants.AMPHORA))
# If this is an unallocated amp (spares pool), we're done
if not load_balancer:
failover_amphora_flow.add(
database_tasks.DisableAmphoraHealthMonitoring(
rebind={constants.AMPHORA: constants.FAILED_AMPHORA},
requires=constants.AMPHORA))
return failover_amphora_flow
# Save failed amphora details for later
failover_amphora_flow.add(
database_tasks.GetAmphoraDetails(
rebind={constants.AMPHORA: constants.FAILED_AMPHORA},
requires=constants.AMPHORA,
provides=constants.AMP_DATA))
# Get a new amphora
# Note: Role doesn't matter here. We will update it later.
get_amp_subflow = self.get_amphora_for_lb_subflow(
prefix=constants.FAILOVER_AMPHORA_FLOW)
failover_amphora_flow.add(get_amp_subflow)
# Update the new amphora with the failed amphora details
failover_amphora_flow.add(
database_tasks.UpdateAmpFailoverDetails(
requires=(constants.AMPHORA, constants.AMP_DATA)))
# Update the data stored in the flow from the database
failover_amphora_flow.add(
database_tasks.ReloadLoadBalancer(
requires=constants.LOADBALANCER_ID,
provides=constants.LOADBALANCER))
failover_amphora_flow.add(
database_tasks.ReloadAmphora(requires=constants.AMPHORA_ID,
provides=constants.AMPHORA))
# Prepare to reconnect the network interface(s)
failover_amphora_flow.add(
network_tasks.GetAmphoraeNetworkConfigs(
requires=constants.LOADBALANCER,
provides=constants.AMPHORAE_NETWORK_CONFIG))
failover_amphora_flow.add(
database_tasks.GetListenersFromLoadbalancer(
requires=constants.LOADBALANCER, provides=constants.LISTENERS))
failover_amphora_flow.add(
database_tasks.GetAmphoraeFromLoadbalancer(
requires=constants.LOADBALANCER, provides=constants.AMPHORAE))
# Plug the VIP ports into the new amphora
# The reason for moving these steps here is the udp listeners want to
# do some kernel configuration before Listener update for forbidding
# failure during rebuild amphora.
failover_amphora_flow.add(
network_tasks.PlugVIPPort(
requires=(constants.AMPHORA,
constants.AMPHORAE_NETWORK_CONFIG)))
failover_amphora_flow.add(
amphora_driver_tasks.AmphoraPostVIPPlug(
requires=(constants.AMPHORA, constants.LOADBALANCER,
constants.AMPHORAE_NETWORK_CONFIG)))
# Listeners update needs to be run on all amphora to update
# their peer configurations. So parallelize this with an
# unordered subflow.
update_amps_subflow = unordered_flow.Flow(
constants.UPDATE_AMPS_SUBFLOW)
timeout_dict = {
constants.CONN_MAX_RETRIES:
CONF.haproxy_amphora.active_connection_max_retries,
constants.CONN_RETRY_INTERVAL:
CONF.haproxy_amphora.active_connection_rety_interval
}
# Setup parallel flows for each amp. We don't know the new amp
# details at flow creation time, so setup a subflow for each
# amp on the LB, they let the task index into a list of amps
# to find the amphora it should work on.
amp_index = 0
for amp in load_balancer.amphorae:
if amp.status == constants.DELETED:
continue
update_amps_subflow.add(
amphora_driver_tasks.AmpListenersUpdate(
name=constants.AMP_LISTENER_UPDATE + '-' + str(amp_index),
requires=(constants.LISTENERS, constants.AMPHORAE),
inject={
constants.AMPHORA_INDEX: amp_index,
constants.TIMEOUT_DICT: timeout_dict
}))
amp_index += 1
failover_amphora_flow.add(update_amps_subflow)
# Plug the member networks into the new amphora
failover_amphora_flow.add(
network_tasks.CalculateAmphoraDelta(
requires=(constants.LOADBALANCER, constants.AMPHORA),
provides=constants.DELTA))
failover_amphora_flow.add(
network_tasks.HandleNetworkDelta(requires=(constants.AMPHORA,
constants.DELTA),
provides=constants.ADDED_PORTS))
failover_amphora_flow.add(
amphora_driver_tasks.AmphoraePostNetworkPlug(
requires=(constants.LOADBALANCER, constants.ADDED_PORTS)))
failover_amphora_flow.add(
database_tasks.ReloadLoadBalancer(
name='octavia-failover-LB-reload-2',
requires=constants.LOADBALANCER_ID,
provides=constants.LOADBALANCER))
# Handle the amphora role and VRRP if necessary
if role == constants.ROLE_MASTER:
failover_amphora_flow.add(
database_tasks.MarkAmphoraMasterInDB(
name=constants.MARK_AMP_MASTER_INDB,
requires=constants.AMPHORA))
vrrp_subflow = self.get_vrrp_subflow(role)
failover_amphora_flow.add(vrrp_subflow)
elif role == constants.ROLE_BACKUP:
failover_amphora_flow.add(
database_tasks.MarkAmphoraBackupInDB(
name=constants.MARK_AMP_BACKUP_INDB,
requires=constants.AMPHORA))
vrrp_subflow = self.get_vrrp_subflow(role)
failover_amphora_flow.add(vrrp_subflow)
elif role == constants.ROLE_STANDALONE:
failover_amphora_flow.add(
database_tasks.MarkAmphoraStandAloneInDB(
name=constants.MARK_AMP_STANDALONE_INDB,
requires=constants.AMPHORA))
failover_amphora_flow.add(
amphora_driver_tasks.ListenersStart(
requires=(constants.LOADBALANCER, constants.LISTENERS,
constants.AMPHORA)))
failover_amphora_flow.add(
database_tasks.DisableAmphoraHealthMonitoring(
rebind={constants.AMPHORA: constants.FAILED_AMPHORA},
requires=constants.AMPHORA))
return failover_amphora_flow
def get_create_member_flow(self, topology):
"""Create a flow to create a member
:returns: The flow for creating a member
"""
create_member_flow = linear_flow.Flow(constants.CREATE_MEMBER_FLOW)
create_member_flow.add(lifecycle_tasks.MemberToErrorOnRevertTask(
requires=[constants.MEMBER,
constants.LISTENERS,
constants.LOADBALANCER,
constants.POOL]))
create_member_flow.add(vthunder_tasks.VthunderInstanceBusy(
requires=a10constants.COMPUTE_BUSY))
create_member_flow.add(database_tasks.MarkMemberPendingCreateInDB(
requires=constants.MEMBER))
create_member_flow.add(a10_database_tasks.GetVThunderByLoadBalancer(
requires=constants.LOADBALANCER,
provides=a10constants.VTHUNDER))
create_member_flow.add(a10_database_tasks.GetLoadBalancerListByProjectID(
requires=a10constants.VTHUNDER,
provides=a10constants.LOADBALANCERS_LIST))
create_member_flow.add(database_tasks.GetAmphoraeFromLoadbalancer(
requires=constants.LOADBALANCER,
provides=constants.AMPHORA))
create_member_flow.add(a10_network_tasks.CalculateDelta(
requires=(constants.LOADBALANCER, a10constants.LOADBALANCERS_LIST),
provides=constants.DELTAS))
create_member_flow.add(a10_network_tasks.HandleNetworkDeltas(
requires=constants.DELTAS, provides=constants.ADDED_PORTS))
# managing interface additions here
if topology == constants.TOPOLOGY_SINGLE:
create_member_flow.add(
vthunder_tasks.AmphoraePostMemberNetworkPlug(
requires=(
constants.LOADBALANCER,
constants.ADDED_PORTS,
a10constants.VTHUNDER)))
create_member_flow.add(vthunder_tasks.VThunderComputeConnectivityWait(
name=a10constants.VTHUNDER_CONNECTIVITY_WAIT,
requires=(a10constants.VTHUNDER, constants.AMPHORA)))
create_member_flow.add(
vthunder_tasks.EnableInterfaceForMembers(
requires=[
constants.ADDED_PORTS,
constants.LOADBALANCER,
a10constants.VTHUNDER]))
# configure member flow for HA
if topology == constants.TOPOLOGY_ACTIVE_STANDBY:
create_member_flow.add(
a10_database_tasks.GetBackupVThunderByLoadBalancer(
name="get_backup_vThunder",
requires=(constants.LOADBALANCER, a10constants.VTHUNDER),
provides=a10constants.BACKUP_VTHUNDER))
create_member_flow.add(vthunder_tasks.VThunderComputeConnectivityWait(
name="backup_compute_conn_wait_before_probe_device",
requires=constants.AMPHORA,
rebind={a10constants.VTHUNDER: a10constants.BACKUP_VTHUNDER}))
create_member_flow.add(vthunder_tasks.VCSSyncWait(
name="vcs_sync_wait_before_probe_device",
requires=a10constants.VTHUNDER))
create_member_flow.add(
vthunder_tasks.AmphoraePostMemberNetworkPlug(
requires=(
constants.LOADBALANCER,
constants.ADDED_PORTS,
a10constants.VTHUNDER)))
create_member_flow.add(
vthunder_tasks.AmphoraePostMemberNetworkPlug(
name="backup_amphora_network_plug", requires=[
constants.ADDED_PORTS, constants.LOADBALANCER], rebind={
a10constants.VTHUNDER: a10constants.BACKUP_VTHUNDER}))
create_member_flow.add(vthunder_tasks.VThunderComputeConnectivityWait(
name=a10constants.MASTER_CONNECTIVITY_WAIT,
requires=(a10constants.VTHUNDER, constants.AMPHORA)))
create_member_flow.add(vthunder_tasks.VThunderComputeConnectivityWait(
name=a10constants.BACKUP_CONNECTIVITY_WAIT,
requires=constants.AMPHORA,
rebind={a10constants.VTHUNDER: a10constants.BACKUP_VTHUNDER}))
create_member_flow.add(vthunder_tasks.VCSSyncWait(
name="backup-plug-wait-vcs-ready",
requires=a10constants.VTHUNDER))
create_member_flow.add(vthunder_tasks.GetMasterVThunder(
name=a10constants.GET_MASTER_VTHUNDER,
requires=a10constants.VTHUNDER,
provides=a10constants.VTHUNDER))
create_member_flow.add(a10_database_tasks.GetBackupVThunderByLoadBalancer(
name="get_backup_vThunder_after_get_master",
requires=(constants.LOADBALANCER, a10constants.VTHUNDER),
provides=a10constants.BACKUP_VTHUNDER))
create_member_flow.add(
vthunder_tasks.EnableInterfaceForMembers(
name=a10constants.ENABLE_MASTER_VTHUNDER_INTERFACE,
requires=[
constants.ADDED_PORTS,
constants.LOADBALANCER,
a10constants.VTHUNDER]))
create_member_flow.add(vthunder_tasks.AmphoraePostMemberNetworkPlug(
name="amphorae-post-member-network-plug-for-master",
requires=(constants.LOADBALANCER, constants.ADDED_PORTS,
a10constants.VTHUNDER)))
create_member_flow.add(
vthunder_tasks.VThunderComputeConnectivityWait(
name=a10constants.CONNECTIVITY_WAIT_FOR_MASTER_VTHUNDER,
requires=(a10constants.VTHUNDER, constants.AMPHORA)))
create_member_flow.add(
vthunder_tasks.VThunderComputeConnectivityWait(
name=a10constants.CONNECTIVITY_WAIT_FOR_BACKUP_VTHUNDER,
rebind={
a10constants.VTHUNDER: a10constants.BACKUP_VTHUNDER},
requires=constants.AMPHORA))
create_member_flow.add(vthunder_tasks.VCSSyncWait(
name="member_enable_interface_vcs_sync_wait",
requires=a10constants.VTHUNDER))
create_member_flow.add(vthunder_tasks.GetMasterVThunder(
name=a10constants.GET_VTHUNDER_MASTER,
requires=a10constants.VTHUNDER,
provides=a10constants.VTHUNDER))
create_member_flow.add(
vthunder_tasks.EnableInterfaceForMembers(
requires=[
constants.ADDED_PORTS,
constants.LOADBALANCER,
a10constants.VTHUNDER]))
create_member_flow.add(self.handle_vrid_for_member_subflow())
create_member_flow.add(a10_database_tasks.CountMembersWithIP(
requires=constants.MEMBER, provides=a10constants.MEMBER_COUNT_IP
))
create_member_flow.add(vthunder_tasks.AllowLoadbalancerForwardWithAnySource(
name=a10constants.ALLOW_NO_SNAT,
requires=(constants.MEMBER, constants.AMPHORA)))
create_member_flow.add(a10_database_tasks.GetFlavorData(
rebind={a10constants.LB_RESOURCE: constants.LOADBALANCER},
provides=constants.FLAVOR))
create_member_flow.add(self.get_create_member_snat_pool_subflow())
create_member_flow.add(server_tasks.MemberCreate(
requires=(constants.MEMBER, a10constants.VTHUNDER, constants.POOL,
a10constants.MEMBER_COUNT_IP, constants.FLAVOR)))
create_member_flow.add(database_tasks.MarkMemberActiveInDB(
requires=constants.MEMBER))
create_member_flow.add(database_tasks.MarkPoolActiveInDB(
requires=constants.POOL))
create_member_flow.add(database_tasks.
MarkLBAndListenersActiveInDB(
requires=(constants.LOADBALANCER,
constants.LISTENERS)))
create_member_flow.add(vthunder_tasks.WriteMemory(
requires=a10constants.VTHUNDER))
create_member_flow.add(a10_database_tasks.SetThunderUpdatedAt(
requires=a10constants.VTHUNDER))
return create_member_flow
def get_delete_member_flow(self):
"""Flow to delete a member on VThunder
:returns: The flow for deleting a member
"""
delete_member_flow = linear_flow.Flow(constants.DELETE_MEMBER_FLOW)
delete_member_flow.add(
lifecycle_tasks.MemberToErrorOnRevertTask(requires=[
constants.MEMBER, constants.LISTENERS, constants.LOADBALANCER,
constants.POOL
]))
delete_member_flow.add(
database_tasks.MarkMemberPendingDeleteInDB(
requires=constants.MEMBER))
delete_member_flow.add(
model_tasks.DeleteModelObject(
rebind={constants.OBJECT: constants.MEMBER}))
delete_member_flow.add(
database_tasks.GetAmphoraeFromLoadbalancer(
requires=constants.LOADBALANCER, provides=constants.AMPHORA))
delete_member_flow.add(
a10_database_tasks.GetVThunderByLoadBalancer(
requires=constants.LOADBALANCER,
provides=a10constants.VTHUNDER))
delete_member_flow.add(
a10_database_tasks.CountMembersWithIP(
requires=constants.MEMBER,
provides=a10constants.MEMBER_COUNT_IP))
delete_member_flow.add(
a10_database_tasks.CountMembersWithIPPortProtocol(
requires=(constants.MEMBER, constants.POOL),
provides=a10constants.MEMBER_COUNT_IP_PORT_PROTOCOL))
delete_member_flow.add(
a10_database_tasks.GetFlavorData(
rebind={a10constants.LB_RESOURCE: constants.LOADBALANCER},
provides=constants.FLAVOR))
delete_member_flow.add(
database_tasks.DeleteMemberInDB(requires=constants.MEMBER))
delete_member_flow.add(
a10_database_tasks.GetLoadBalancerListByProjectID(
requires=a10constants.VTHUNDER,
provides=a10constants.LOADBALANCERS_LIST))
delete_member_flow.add(
a10_network_tasks.CalculateDelta(
requires=(constants.LOADBALANCER,
a10constants.LOADBALANCERS_LIST),
provides=constants.DELTAS))
delete_member_flow.add(
a10_network_tasks.HandleNetworkDeltas(
requires=constants.DELTAS, provides=constants.ADDED_PORTS))
delete_member_flow.add(
vthunder_tasks.AmphoraePostNetworkUnplug(
requires=(constants.LOADBALANCER, constants.ADDED_PORTS,
a10constants.VTHUNDER)))
delete_member_flow.add(
vthunder_tasks.VThunderComputeConnectivityWait(
requires=(a10constants.VTHUNDER, constants.AMPHORA)))
delete_member_flow.add(
server_tasks.MemberFindNatPool(requires=[
constants.MEMBER, a10constants.VTHUNDER, constants.POOL,
constants.FLAVOR
],
provides=a10constants.NAT_FLAVOR))
delete_member_flow.add(
a10_database_tasks.GetNatPoolEntry(
requires=[constants.MEMBER, a10constants.NAT_FLAVOR],
provides=a10constants.NAT_POOL))
delete_member_flow.add(
a10_network_tasks.ReleaseSubnetAddressForMember(requires=[
constants.MEMBER, a10constants.NAT_FLAVOR,
a10constants.NAT_POOL
]))
delete_member_flow.add(
a10_database_tasks.DeleteNatPoolEntry(
requires=a10constants.NAT_POOL))
delete_member_flow.add(
server_tasks.MemberDelete(
requires=(constants.MEMBER, a10constants.VTHUNDER,
constants.POOL, a10constants.MEMBER_COUNT_IP,
a10constants.MEMBER_COUNT_IP_PORT_PROTOCOL)))
delete_member_flow.add(self.get_delete_member_vrid_subflow())
delete_member_flow.add(
database_tasks.DecrementMemberQuota(requires=constants.MEMBER))
delete_member_flow.add(
database_tasks.MarkPoolActiveInDB(requires=constants.POOL))
delete_member_flow.add(
database_tasks.MarkLBAndListenersActiveInDB(
requires=[constants.LOADBALANCER, constants.LISTENERS]))
delete_member_flow.add(
vthunder_tasks.WriteMemory(requires=a10constants.VTHUNDER))
delete_member_flow.add(
a10_database_tasks.SetThunderUpdatedAt(
requires=a10constants.VTHUNDER))
return delete_member_flow
def get_delete_member_flow(self, topology):
"""Flow to delete a member on VThunder
:returns: The flow for deleting a member
"""
delete_member_flow = linear_flow.Flow(constants.DELETE_MEMBER_FLOW)
delete_member_flow.add(lifecycle_tasks.MemberToErrorOnRevertTask(
requires=[constants.MEMBER,
constants.LISTENERS,
constants.LOADBALANCER,
constants.POOL]))
delete_member_flow.add(vthunder_tasks.VthunderInstanceBusy(
requires=a10constants.COMPUTE_BUSY))
delete_member_flow.add(database_tasks.MarkMemberPendingDeleteInDB(
requires=constants.MEMBER))
delete_member_flow.add(model_tasks.
DeleteModelObject(rebind={constants.OBJECT:
constants.MEMBER}))
delete_member_flow.add(database_tasks.GetAmphoraeFromLoadbalancer(
requires=constants.LOADBALANCER,
provides=constants.AMPHORA))
delete_member_flow.add(a10_database_tasks.GetVThunderByLoadBalancer(
requires=constants.LOADBALANCER,
provides=a10constants.VTHUNDER))
delete_member_flow.add(a10_database_tasks.CountMembersWithIP(
requires=constants.MEMBER, provides=a10constants.MEMBER_COUNT_IP))
delete_member_flow.add(
a10_database_tasks.CountMembersWithIPPortProtocol(
requires=(
constants.MEMBER,
constants.POOL),
provides=a10constants.MEMBER_COUNT_IP_PORT_PROTOCOL))
delete_member_flow.add(a10_database_tasks.GetFlavorData(
rebind={a10constants.LB_RESOURCE: constants.LOADBALANCER},
provides=constants.FLAVOR))
delete_member_flow.add(a10_database_tasks.GetLoadBalancerListByProjectID(
requires=a10constants.VTHUNDER,
provides=a10constants.LOADBALANCERS_LIST))
delete_member_flow.add(a10_network_tasks.CalculateDelta(
requires=(constants.LOADBALANCER, a10constants.LOADBALANCERS_LIST),
provides=constants.DELTAS))
delete_member_flow.add(a10_network_tasks.HandleNetworkDeltas(
requires=constants.DELTAS, provides=constants.ADDED_PORTS))
delete_member_flow.add(
vthunder_tasks.AmphoraePostNetworkUnplug(
requires=(
constants.LOADBALANCER,
constants.ADDED_PORTS,
a10constants.VTHUNDER)))
delete_member_flow.add(vthunder_tasks.VThunderComputeConnectivityWait(
name=a10constants.VTHUNDER_CONNECTIVITY_WAIT,
requires=(a10constants.VTHUNDER, constants.AMPHORA)))
if topology == constants.TOPOLOGY_ACTIVE_STANDBY:
delete_member_flow.add(
a10_database_tasks.GetBackupVThunderByLoadBalancer(
name=a10constants.GET_BACKUP_VTHUNDER_BY_LB,
requires=(constants.LOADBALANCER, a10constants.VTHUNDER),
provides=a10constants.BACKUP_VTHUNDER))
delete_member_flow.add(
vthunder_tasks.VThunderComputeConnectivityWait(
name=a10constants.BACKUP_CONNECTIVITY_WAIT + "-before-unplug",
requires=constants.AMPHORA,
rebind={a10constants.VTHUNDER: a10constants.BACKUP_VTHUNDER}))
delete_member_flow.add(
vthunder_tasks.AmphoraePostNetworkUnplug(
name=a10constants.AMPHORA_POST_NETWORK_UNPLUG_FOR_BACKUP_VTHUNDER,
requires=(constants.LOADBALANCER, constants.ADDED_PORTS),
rebind={a10constants.VTHUNDER: a10constants.BACKUP_VTHUNDER}))
delete_member_flow.add(
vthunder_tasks.VThunderComputeConnectivityWait(
name=a10constants.BACKUP_CONNECTIVITY_WAIT,
requires=constants.AMPHORA,
rebind={a10constants.VTHUNDER: a10constants.BACKUP_VTHUNDER}))
delete_member_flow.add(vthunder_tasks.VCSSyncWait(
name='member-unplug-' + a10constants.VCS_SYNC_WAIT,
requires=a10constants.VTHUNDER))
delete_member_flow.add(vthunder_tasks.GetMasterVThunder(
name=a10constants.GET_VTHUNDER_MASTER,
requires=a10constants.VTHUNDER,
provides=a10constants.VTHUNDER))
delete_member_flow.add(server_tasks.MemberFindNatPool(
requires=[constants.MEMBER, a10constants.VTHUNDER, constants.POOL,
constants.FLAVOR], provides=a10constants.NAT_FLAVOR))
delete_member_flow.add(a10_database_tasks.GetNatPoolEntry(
requires=[constants.MEMBER, a10constants.NAT_FLAVOR],
provides=a10constants.NAT_POOL))
delete_member_flow.add(a10_network_tasks.ReleaseSubnetAddressForMember(
requires=[constants.MEMBER, a10constants.NAT_FLAVOR, a10constants.NAT_POOL]))
delete_member_flow.add(a10_database_tasks.DeleteNatPoolEntry(
requires=a10constants.NAT_POOL))
delete_member_flow.add(
server_tasks.MemberDelete(
requires=(
constants.MEMBER,
a10constants.VTHUNDER,
constants.POOL,
a10constants.MEMBER_COUNT_IP,
a10constants.MEMBER_COUNT_IP_PORT_PROTOCOL)))
delete_member_flow.add(self.get_delete_member_vrid_subflow())
delete_member_flow.add(database_tasks.DeleteMemberInDB(
requires=constants.MEMBER))
delete_member_flow.add(database_tasks.DecrementMemberQuota(
requires=constants.MEMBER))
delete_member_flow.add(database_tasks.MarkPoolActiveInDB(
requires=constants.POOL))
delete_member_flow.add(database_tasks.MarkLBAndListenersActiveInDB(
requires=[constants.LOADBALANCER, constants.LISTENERS]))
delete_member_flow.add(vthunder_tasks.WriteMemory(
requires=a10constants.VTHUNDER))
delete_member_flow.add(a10_database_tasks.SetThunderUpdatedAt(
requires=a10constants.VTHUNDER))
return delete_member_flow
def get_new_lb_networking_subflow(self, topology):
"""Subflow to setup networking for amphora"""
new_LB_net_subflow = linear_flow.Flow(
constants.LOADBALANCER_NETWORKING_SUBFLOW)
new_LB_net_subflow.add(
a10_network_tasks.PlugVIP(requires=constants.LOADBALANCER,
provides=constants.AMPS_DATA))
new_LB_net_subflow.add(
a10_network_tasks.ApplyQos(requires=(constants.LOADBALANCER,
constants.AMPS_DATA,
constants.UPDATE_DICT)))
new_LB_net_subflow.add(
database_tasks.UpdateAmphoraeVIPData(requires=constants.AMPS_DATA))
new_LB_net_subflow.add(
database_tasks.ReloadLoadBalancer(
name=constants.RELOAD_LB_AFTER_PLUG_VIP,
requires=constants.LOADBALANCER_ID,
provides=constants.LOADBALANCER))
new_LB_net_subflow.add(
a10_network_tasks.GetAmphoraeNetworkConfigs(
requires=constants.LOADBALANCER,
provides=constants.AMPHORAE_NETWORK_CONFIG))
new_LB_net_subflow.add(
database_tasks.GetAmphoraeFromLoadbalancer(
requires=constants.LOADBALANCER, provides=constants.AMPHORA))
new_LB_net_subflow.add(
vthunder_tasks.VThunderComputeConnectivityWait(
name=a10constants.MASTER_CONNECTIVITY_WAIT,
requires=(a10constants.VTHUNDER, constants.AMPHORA)))
new_LB_net_subflow.add(
vthunder_tasks.EnableInterface(requires=a10constants.VTHUNDER))
new_LB_net_subflow.add(
a10_database_tasks.MarkVThunderStatusInDB(
name=a10constants.MARK_VTHUNDER_MASTER_ACTIVE_IN_DB,
requires=a10constants.VTHUNDER,
inject={a10constants.STATUS: constants.ACTIVE}))
if topology == constants.TOPOLOGY_ACTIVE_STANDBY:
new_LB_net_subflow.add(
vthunder_tasks.CreateHealthMonitorOnVThunder(
name=a10constants.CREATE_HEALTH_MONITOR_ON_VTHUNDER_MASTER,
requires=a10constants.VTHUNDER))
new_LB_net_subflow.add(
a10_database_tasks.GetBackupVThunderByLoadBalancer(
name=a10constants.GET_BACKUP_VTHUNDER_BY_LB,
requires=constants.LOADBALANCER,
provides=a10constants.BACKUP_VTHUNDER))
new_LB_net_subflow.add(
vthunder_tasks.VThunderComputeConnectivityWait(
name=a10constants.BACKUP_CONNECTIVITY_WAIT,
rebind={
a10constants.VTHUNDER: a10constants.BACKUP_VTHUNDER
},
requires=constants.AMPHORA))
new_LB_net_subflow.add(
vthunder_tasks.EnableInterface(
name=a10constants.BACKUP_ENABLE_INTERFACE,
rebind={
a10constants.VTHUNDER: a10constants.BACKUP_VTHUNDER
}))
new_LB_net_subflow.add(
a10_database_tasks.MarkVThunderStatusInDB(
name=a10constants.MARK_VTHUNDER_BACKUP_ACTIVE_IN_DB,
rebind={
a10constants.VTHUNDER: a10constants.BACKUP_VTHUNDER
},
inject={a10constants.STATUS: constants.ACTIVE}))
return new_LB_net_subflow
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_network_tasks.CalculateDelta(
requires=(constants.LOADBALANCER, a10constants.LOADBALANCERS_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,
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
def get_extension_flow(self, distributor):
"""Extend a amphora for load balancer.
:returns: The flow for loadbalancer extension
"""
extension_flow = linear_flow.Flow(
constants.EXTENSION_LOADBALANCER_FLOW)
get_amp_subflow = self.get_amphora_for_lb_subflow(
prefix=constants.EXTENSION_LOADBALANCER_FLOW,
role=constants.ROLE_ACTIVE)
extension_flow.add(get_amp_subflow)
# Update the data stored in the flow from the database
extension_flow.add(
database_tasks.ReloadLoadBalancer(
name='first',
requires=constants.LOADBALANCER_ID,
provides=constants.LOADBALANCER))
extension_flow.add(
network_tasks.PlugAmphoraVIP(requires=(constants.AMPHORA,
constants.LOADBALANCER),
provides=constants.AMPS_DATA))
extension_flow.add(
database_tasks.UpdateAmphoraVIPData(requires=constants.AMPS_DATA))
# Update the data stored in the flow from the database
extension_flow.add(
database_tasks.ReloadLoadBalancer(
name='second',
requires=constants.LOADBALANCER_ID,
provides=constants.LOADBALANCER))
extension_flow.add(
database_tasks.ReloadAmphora(requires=constants.AMPHORA_ID,
provides=constants.AMPHORA))
# Prepare to reconnect the network interface(s)
extension_flow.add(
network_tasks.GetAmphoraeNetworkConfigs(
requires=constants.LOADBALANCER,
provides=constants.AMPHORAE_NETWORK_CONFIG))
extension_flow.add(
database_tasks.GetListenersFromLoadbalancer(
requires=constants.LOADBALANCER, provides=constants.LISTENERS))
extension_flow.add(
database_tasks.GetAmphoraeFromLoadbalancer(
requires=constants.LOADBALANCER, provides=constants.AMPHORAE))
extension_flow.add(
amphora_driver_tasks.AmphoraPostVIPPlug(
requires=(constants.AMPHORA, constants.LOADBALANCER,
constants.AMPHORAE_NETWORK_CONFIG)))
timeout_dict = {
constants.CONN_MAX_RETRIES:
CONF.haproxy_amphora.active_connection_max_retries,
constants.CONN_RETRY_INTERVAL:
CONF.haproxy_amphora.active_connection_rety_interval
}
extension_flow.add(
amphora_driver_tasks.AmpsListenersUpdate(
name=constants.AMP_LISTENER_UPDATE,
requires=(constants.LISTENERS, constants.LOADBALANCER),
inject=({
constants.TIMEOUT_DICT: timeout_dict
})))
# Plug the member networks into the new amphora
extension_flow.add(
network_tasks.CalculateAmphoraDelta(
requires=(constants.LOADBALANCER, constants.AMPHORA),
provides=constants.DELTA))
extension_flow.add(
network_tasks.HandleNetworkDelta(requires=(constants.AMPHORA,
constants.DELTA),
provides=constants.ADDED_PORTS))
extension_flow.add(
amphora_driver_tasks.AmphoraePostNetworkPlug(
requires=(constants.LOADBALANCER, constants.ADDED_PORTS)))
extension_flow.add(
database_tasks.ReloadLoadBalancer(
name='octavia-extension-LB-reload-2',
requires=constants.LOADBALANCER_ID,
provides=constants.LOADBALANCER))
extension_flow.add(
self.get_distributor_flows('octavia-extension-distributor-flow',
distributor))
extension_flow.add(
amphora_driver_tasks.ListenersStart(
requires=(constants.LOADBALANCER, constants.LISTENERS,
constants.AMPHORA)))
return extension_flow
def get_delete_load_balancer_flow(self, lb, deleteCompute, cascade):
"""Flow to delete load balancer"""
store = {}
delete_LB_flow = linear_flow.Flow(constants.DELETE_LOADBALANCER_FLOW)
delete_LB_flow.add(
lifecycle_tasks.LoadBalancerToErrorOnRevertTask(
requires=constants.LOADBALANCER))
delete_LB_flow.add(
a10_database_tasks.GetVThunderByLoadBalancer(
requires=constants.LOADBALANCER,
provides=a10constants.VTHUNDER))
delete_LB_flow.add(
a10_database_tasks.MarkVThunderStatusInDB(
requires=a10constants.VTHUNDER,
inject={"status": constants.PENDING_DELETE}))
delete_LB_flow.add(
vthunder_tasks.SetupDeviceNetworkMap(
requires=a10constants.VTHUNDER,
provides=a10constants.VTHUNDER))
delete_LB_flow.add(
compute_tasks.NovaServerGroupDelete(
requires=constants.SERVER_GROUP_ID))
delete_LB_flow.add(
database_tasks.MarkLBAmphoraeHealthBusy(
requires=constants.LOADBALANCER))
if cascade:
(pools_listeners_delete,
store) = self._get_cascade_delete_pools_listeners_flow(lb)
delete_LB_flow.add(pools_listeners_delete)
delete_LB_flow.add(
a10_database_tasks.GetFlavorData(
rebind={a10constants.LB_RESOURCE: constants.LOADBALANCER},
provides=constants.FLAVOR_DATA))
delete_LB_flow.add(
a10_database_tasks.CountLoadbalancersWithFlavor(
requires=(constants.LOADBALANCER, a10constants.VTHUNDER),
provides=a10constants.LB_COUNT))
delete_LB_flow.add(self.get_delete_lb_vrid_subflow())
if CONF.a10_global.network_type == 'vlan':
delete_LB_flow.add(
vthunder_tasks.DeleteInterfaceTagIfNotInUseForLB(
requires=[constants.LOADBALANCER, a10constants.VTHUNDER]))
# delete_LB_flow.add(listeners_delete)
# delete_LB_flow.add(network_tasks.UnplugVIP(
# requires=constants.LOADBALANCER))
delete_LB_flow.add(
database_tasks.GetAmphoraeFromLoadbalancer(
requires=constants.LOADBALANCER, provides=constants.AMPHORA))
delete_LB_flow.add(
a10_database_tasks.GetLoadBalancerListByProjectID(
requires=a10constants.VTHUNDER,
provides=a10constants.LOADBALANCERS_LIST))
if not deleteCompute:
delete_LB_flow.add(
a10_network_tasks.CalculateDelta(
requires=(constants.LOADBALANCER,
a10constants.LOADBALANCERS_LIST),
provides=constants.DELTAS))
delete_LB_flow.add(
a10_network_tasks.HandleNetworkDeltas(
requires=constants.DELTAS, provides=constants.ADDED_PORTS))
delete_LB_flow.add(
vthunder_tasks.AmphoraePostNetworkUnplug(
name=a10constants.AMPHORA_POST_NETWORK_UNPLUG,
requires=(constants.LOADBALANCER, constants.ADDED_PORTS,
a10constants.VTHUNDER)))
delete_LB_flow.add(
vthunder_tasks.VThunderComputeConnectivityWait(
name=a10constants.VTHUNDER_CONNECTIVITY_WAIT,
requires=(a10constants.VTHUNDER, constants.AMPHORA)))
delete_LB_flow.add(
virtual_server_tasks.DeleteVirtualServerTask(
requires=(constants.LOADBALANCER, a10constants.VTHUNDER)))
delete_LB_flow.add(
nat_pool_tasks.NatPoolDelete(requires=(constants.LOADBALANCER,
a10constants.VTHUNDER,
a10constants.LB_COUNT,
constants.FLAVOR_DATA)))
if deleteCompute:
delete_LB_flow.add(
compute_tasks.DeleteAmphoraeOnLoadBalancer(
requires=constants.LOADBALANCER))
delete_LB_flow.add(
a10_database_tasks.MarkVThunderStatusInDB(
name=a10constants.MARK_VTHUNDER_MASTER_DELETED_IN_DB,
requires=a10constants.VTHUNDER,
inject={"status": constants.DELETED}))
delete_LB_flow.add(
database_tasks.MarkLBAmphoraeDeletedInDB(
requires=constants.LOADBALANCER))
delete_LB_flow.add(
database_tasks.DisableLBAmphoraeHealthMonitoring(
requires=constants.LOADBALANCER))
delete_LB_flow.add(
database_tasks.MarkLBDeletedInDB(requires=constants.LOADBALANCER))
delete_LB_flow.add(
database_tasks.DecrementLoadBalancerQuota(
requires=constants.LOADBALANCER))
if not deleteCompute:
delete_LB_flow.add(
vthunder_tasks.WriteMemory(requires=a10constants.VTHUNDER))
delete_LB_flow.add(
a10_database_tasks.SetThunderUpdatedAt(
name=a10constants.SET_THUNDER_UPDATE_AT,
requires=a10constants.VTHUNDER))
delete_LB_flow.add(
a10_database_tasks.GetBackupVThunderByLoadBalancer(
requires=constants.LOADBALANCER,
provides=a10constants.BACKUP_VTHUNDER))
delete_LB_flow.add(
a10_database_tasks.MarkVThunderStatusInDB(
name=a10constants.MARK_VTHUNDER_BACKUP_DELETED_IN_DB,
rebind={a10constants.VTHUNDER: a10constants.BACKUP_VTHUNDER},
inject={"status": constants.DELETED}))
delete_LB_flow.add(
a10_database_tasks.SetThunderUpdatedAt(
name=a10constants.SET_THUNDER_BACKUP_UPDATE_AT,
rebind={a10constants.VTHUNDER: a10constants.BACKUP_VTHUNDER}))
return (delete_LB_flow, store)