def _get_post_map_lb_subflow(self, prefix, role):
"""Set amphora type after mapped to lb."""
sf_name = prefix + '-' + constants.POST_MAP_AMP_TO_LB_SUBFLOW
post_map_amp_to_lb = linear_flow.Flow(
sf_name)
post_map_amp_to_lb.add(database_tasks.ReloadAmphora(
name=sf_name + '-' + constants.RELOAD_AMPHORA,
requires=constants.AMPHORA_ID,
provides=constants.AMPHORA))
if role == constants.ROLE_MASTER:
post_map_amp_to_lb.add(database_tasks.MarkAmphoraMasterInDB(
name=sf_name + '-' + constants.MARK_AMP_MASTER_INDB,
requires=constants.AMPHORA))
elif role == constants.ROLE_BACKUP:
post_map_amp_to_lb.add(database_tasks.MarkAmphoraBackupInDB(
name=sf_name + '-' + constants.MARK_AMP_BACKUP_INDB,
requires=constants.AMPHORA))
elif role == constants.ROLE_STANDALONE:
post_map_amp_to_lb.add(database_tasks.MarkAmphoraStandAloneInDB(
name=sf_name + '-' + constants.MARK_AMP_STANDALONE_INDB,
requires=constants.AMPHORA))
return post_map_amp_to_lb
def get_create_load_balancer_flow(self):
"""Creates a flow to create a load balancer.
:returns: The flow for creating a load balancer
"""
# Note this flow is a bit strange in how it handles building
# Amphora if there are no spares. TaskFlow has a spec for
# a conditional flow that would make this cleaner once implemented.
# https://review.openstack.org/#/c/98946/
create_LB_flow = linear_flow.Flow(constants.CREATE_LOADBALANCER_FLOW)
create_LB_flow.add(database_tasks.MapLoadbalancerToAmphora(
requires=constants.LOADBALANCER_ID,
provides=constants.AMPHORA_ID))
create_LB_flow.add(database_tasks.ReloadAmphora(
requires=constants.AMPHORA_ID,
provides=constants.AMPHORA))
create_LB_flow.add(database_tasks.ReloadLoadBalancer(
name=constants.RELOAD_LB_AFTER_AMP_ASSOC,
requires=constants.LOADBALANCER_ID,
provides=constants.LOADBALANCER))
new_LB_net_subflow = self.get_new_LB_networking_subflow()
create_LB_flow.add(new_LB_net_subflow)
create_LB_flow.add(database_tasks.MarkLBActiveInDB(
requires=constants.LOADBALANCER))
return create_LB_flow
def get_create_amphora_for_lb_flow(self):
"""Creates a flow to create an amphora for a load balancer.
This flow is used when there are no spare amphora available
for a new load balancer. It builds an amphora and allocates
for the specific load balancer.
:returns: The The flow for creating the amphora
"""
create_amp_for_lb_flow = linear_flow.Flow(
constants.CREATE_AMPHORA_FOR_LB_FLOW)
create_amp_for_lb_flow.add(
database_tasks.CreateAmphoraInDB(provides=constants.AMPHORA_ID))
if self.REST_AMPHORA_DRIVER:
create_amp_for_lb_flow.add(
cert_task.GenerateServerPEMTask(provides=constants.SERVER_PEM))
create_amp_for_lb_flow.add(
compute_tasks.CertComputeCreate(
requires=(constants.AMPHORA_ID, constants.SERVER_PEM),
provides=constants.COMPUTE_ID))
else:
create_amp_for_lb_flow.add(
compute_tasks.ComputeCreate(requires=constants.AMPHORA_ID,
provides=constants.COMPUTE_ID))
create_amp_for_lb_flow.add(
database_tasks.UpdateAmphoraComputeId(
requires=(constants.AMPHORA_ID, constants.COMPUTE_ID)))
create_amp_for_lb_flow.add(
database_tasks.MarkAmphoraBootingInDB(
requires=(constants.AMPHORA_ID, constants.COMPUTE_ID)))
wait_flow = linear_flow.Flow(
constants.WAIT_FOR_AMPHORA,
retry=retry.Times(CONF.controller_worker.amp_active_retries))
wait_flow.add(
compute_tasks.ComputeWait(requires=constants.COMPUTE_ID,
provides=constants.COMPUTE_OBJ))
wait_flow.add(
database_tasks.UpdateAmphoraInfo(requires=(constants.AMPHORA_ID,
constants.COMPUTE_OBJ),
provides=constants.AMPHORA))
create_amp_for_lb_flow.add(wait_flow)
create_amp_for_lb_flow.add(
amphora_driver_tasks.AmphoraFinalize(requires=constants.AMPHORA))
create_amp_for_lb_flow.add(
database_tasks.MarkAmphoraAllocatedInDB(
requires=(constants.AMPHORA, constants.LOADBALANCER_ID)))
create_amp_for_lb_flow.add(
database_tasks.ReloadAmphora(requires=constants.AMPHORA_ID,
provides=constants.AMPHORA))
create_amp_for_lb_flow.add(
database_tasks.ReloadLoadBalancer(
name=constants.RELOAD_LB_AFTER_AMP_ASSOC,
requires=constants.LOADBALANCER_ID,
provides=constants.LOADBALANCER))
new_LB_net_subflow = self._lb_flows.get_new_LB_networking_subflow()
create_amp_for_lb_flow.add(new_LB_net_subflow)
create_amp_for_lb_flow.add(
database_tasks.MarkLBActiveInDB(requires=constants.LOADBALANCER))
return create_amp_for_lb_flow
def _get_vthunder_for_amphora_subflow(self, prefix, role):
"""Create amphora in existing vThunder."""
sf_name = prefix + '-' + 'VTHUNDER_TO_AMPHORA_SUBFLOW'
vthunder_for_amphora_subflow = linear_flow.Flow(sf_name)
vthunder_for_amphora_subflow.add(database_tasks.CreateAmphoraInDB(
name=sf_name + '-' + constants.CREATE_AMPHORA_INDB,
provides=constants.AMPHORA_ID))
vthunder_for_amphora_subflow.add(a10_database_tasks.GetComputeForProject(
name=sf_name + '-' + 'get_compute_id',
requires=constants.LOADBALANCER,
provides=constants.COMPUTE_ID))
vthunder_for_amphora_subflow.add(database_tasks.UpdateAmphoraComputeId(
name=sf_name + '-' + constants.UPDATE_AMPHORA_COMPUTEID,
requires=(constants.AMPHORA_ID, constants.COMPUTE_ID)))
vthunder_for_amphora_subflow.add(compute_tasks.ComputeActiveWait(
name=sf_name + '-' + constants.COMPUTE_WAIT,
requires=(constants.COMPUTE_ID, constants.AMPHORA_ID),
provides=constants.COMPUTE_OBJ))
vthunder_for_amphora_subflow.add(database_tasks.UpdateAmphoraInfo(
name=sf_name + '-' + constants.UPDATE_AMPHORA_INFO,
requires=(constants.AMPHORA_ID, constants.COMPUTE_OBJ),
provides=constants.AMPHORA))
# create vThunder entry in custom DB
vthunder_for_amphora_subflow.add(a10_database_tasks.CreateVThunderEntry(
name=sf_name + '-' + 'set load balancer status PENDING_CREATE',
requires=(constants.AMPHORA, constants.LOADBALANCER),
inject={"role": role, "status": constants.PENDING_CREATE}))
# Get VThunder details from database
vthunder_for_amphora_subflow.add(a10_database_tasks.GetVThunderByLoadBalancer(
name=sf_name + '-' + 'Get_Loadbalancer_from_db',
requires=constants.LOADBALANCER,
provides=a10constants.VTHUNDER))
vthunder_for_amphora_subflow.add(
database_tasks.MarkAmphoraAllocatedInDB(
name=sf_name + '-' + constants.MARK_AMPHORA_ALLOCATED_INDB,
requires=(constants.AMPHORA, constants.LOADBALANCER_ID)))
vthunder_for_amphora_subflow.add(database_tasks.ReloadAmphora(
name=sf_name + '-' + constants.RELOAD_AMPHORA,
requires=constants.AMPHORA_ID,
provides=constants.AMPHORA))
if role == constants.ROLE_MASTER:
vthunder_for_amphora_subflow.add(database_tasks.MarkAmphoraMasterInDB(
name=sf_name + '-' + constants.MARK_AMP_MASTER_INDB,
requires=constants.AMPHORA))
elif role == constants.ROLE_BACKUP:
vthunder_for_amphora_subflow.add(database_tasks.MarkAmphoraBackupInDB(
name=sf_name + '-' + constants.MARK_AMP_BACKUP_INDB,
requires=constants.AMPHORA))
elif role == constants.ROLE_STANDALONE:
vthunder_for_amphora_subflow.add(
database_tasks.MarkAmphoraStandAloneInDB(
name=sf_name + '-' + constants.MARK_AMP_STANDALONE_INDB,
requires=constants.AMPHORA))
return vthunder_for_amphora_subflow
def test_reload_amphora(self, mock_amp_get, mock_generate_uuid, mock_LOG,
mock_get_session, mock_loadbalancer_repo_update,
mock_listener_repo_update,
mock_amphora_repo_update,
mock_amphora_repo_delete):
reload_amp = database_tasks.ReloadAmphora()
amp = reload_amp.execute(AMP_ID)
repo.AmphoraRepository.get.assert_called_once_with('TEST', id=AMP_ID)
self.assertEqual(_amphora_mock, amp)
def get_create_amphora_flow(self):
"""Creates a flow to create an amphora.
:returns: The flow for creating the amphora
"""
create_amphora_flow = linear_flow.Flow(constants.CREATE_AMPHORA_FLOW)
create_amphora_flow.add(
database_tasks.CreateAmphoraInDB(provides=constants.AMPHORA_ID))
create_amphora_flow.add(
lifecycle_tasks.AmphoraIDToErrorOnRevertTask(
requires=constants.AMPHORA_ID))
if self.REST_AMPHORA_DRIVER:
create_amphora_flow.add(
cert_task.GenerateServerPEMTask(provides=constants.SERVER_PEM))
create_amphora_flow.add(
database_tasks.UpdateAmphoraDBCertExpiration(
requires=(constants.AMPHORA_ID, constants.SERVER_PEM)))
create_amphora_flow.add(
compute_tasks.CertComputeCreate(
requires=(constants.AMPHORA_ID, constants.SERVER_PEM,
constants.BUILD_TYPE_PRIORITY),
provides=constants.COMPUTE_ID))
else:
create_amphora_flow.add(
compute_tasks.ComputeCreate(
requires=(constants.AMPHORA_ID,
constants.BUILD_TYPE_PRIORITY),
provides=constants.COMPUTE_ID))
create_amphora_flow.add(
database_tasks.MarkAmphoraBootingInDB(
requires=(constants.AMPHORA_ID, constants.COMPUTE_ID)))
create_amphora_flow.add(
compute_tasks.ComputeActiveWait(requires=(constants.COMPUTE_ID,
constants.AMPHORA_ID),
provides=constants.COMPUTE_OBJ))
create_amphora_flow.add(
database_tasks.UpdateAmphoraInfo(requires=(constants.AMPHORA_ID,
constants.COMPUTE_OBJ),
provides=constants.AMPHORA))
create_amphora_flow.add(
amphora_driver_tasks.AmphoraComputeConnectivityWait(
requires=constants.AMPHORA))
create_amphora_flow.add(
database_tasks.ReloadAmphora(requires=constants.AMPHORA_ID,
provides=constants.AMPHORA))
create_amphora_flow.add(
amphora_driver_tasks.AmphoraFinalize(requires=constants.AMPHORA))
create_amphora_flow.add(
database_tasks.MarkAmphoraReadyInDB(requires=constants.AMPHORA))
return create_amphora_flow
def get_create_amphora_flow(self):
"""Creates a flow to create an amphora.
Ideally that should be configurable in the
config file - a db session needs to be placed
into the flow
:returns: The flow for creating the amphora
"""
create_amphora_flow = linear_flow.Flow(constants.CREATE_AMPHORA_FLOW)
create_amphora_flow.add(
database_tasks.CreateAmphoraInDB(provides=constants.AMPHORA_ID))
if self.REST_AMPHORA_DRIVER:
create_amphora_flow.add(
cert_task.GenerateServerPEMTask(provides=constants.SERVER_PEM))
create_amphora_flow.add(
database_tasks.UpdateAmphoraDBCertExpiration(
requires=(constants.AMPHORA_ID, constants.SERVER_PEM)))
create_amphora_flow.add(
compute_tasks.CertComputeCreate(
requires=(constants.AMPHORA_ID, constants.SERVER_PEM),
provides=constants.COMPUTE_ID))
else:
create_amphora_flow.add(
compute_tasks.ComputeCreate(requires=constants.AMPHORA_ID,
provides=constants.COMPUTE_ID))
create_amphora_flow.add(
database_tasks.MarkAmphoraBootingInDB(
requires=(constants.AMPHORA_ID, constants.COMPUTE_ID)))
create_amphora_flow.add(
compute_tasks.ComputeWait(requires=constants.COMPUTE_ID,
provides=constants.COMPUTE_OBJ))
create_amphora_flow.add(
database_tasks.UpdateAmphoraInfo(requires=(constants.AMPHORA_ID,
constants.COMPUTE_OBJ),
provides=constants.AMPHORA))
create_amphora_flow.add(
database_tasks.ReloadAmphora(requires=constants.AMPHORA_ID,
provides=constants.AMPHORA))
create_amphora_flow.add(
amphora_driver_tasks.AmphoraFinalize(requires=constants.AMPHORA))
create_amphora_flow.add(
database_tasks.MarkAmphoraReadyInDB(requires=constants.AMPHORA))
return create_amphora_flow
def _get_amp_net_subflow(self, sf_name):
flows = []
flows.append(
network_tasks.PlugVIPAmpphora(
name=sf_name + '-' + constants.PLUG_VIP_AMPHORA,
requires=(constants.LOADBALANCER, constants.AMPHORA,
constants.SUBNET),
provides=constants.AMP_DATA))
flows.append(
network_tasks.ApplyQosAmphora(
name=sf_name + '-' + constants.APPLY_QOS_AMP,
requires=(constants.LOADBALANCER, constants.AMP_DATA,
constants.UPDATE_DICT)))
flows.append(
database_tasks.UpdateAmphoraVIPData(
name=sf_name + '-' + constants.UPDATE_AMPHORA_VIP_DATA,
requires=constants.AMP_DATA))
flows.append(
database_tasks.ReloadAmphora(name=sf_name + '-' +
constants.RELOAD_AMP_AFTER_PLUG_VIP,
requires=constants.AMPHORA_ID,
provides=constants.AMPHORA))
flows.append(
database_tasks.ReloadLoadBalancer(
name=sf_name + '-' + constants.RELOAD_LB_AFTER_PLUG_VIP,
requires=constants.LOADBALANCER_ID,
provides=constants.LOADBALANCER))
flows.append(
network_tasks.GetAmphoraNetworkConfigs(
name=sf_name + '-' + constants.GET_AMP_NETWORK_CONFIG,
requires=(constants.LOADBALANCER, constants.AMPHORA),
provides=constants.AMPHORA_NETWORK_CONFIG))
flows.append(
amphora_driver_tasks.AmphoraPostVIPPlug(
name=sf_name + '-' + constants.AMP_POST_VIP_PLUG,
rebind={
constants.AMPHORAE_NETWORK_CONFIG:
constants.AMPHORA_NETWORK_CONFIG
},
requires=(constants.LOADBALANCER,
constants.AMPHORAE_NETWORK_CONFIG)))
return flows
def _get_vthunder_for_amphora_subflow(self, prefix, role):
"""Subflow to create lb in existing vThunder."""
sf_name = prefix + '-' + a10constants.LB_TO_VTHUNDER_SUBFLOW
vthunder_for_amphora_subflow = linear_flow.Flow(sf_name)
vthunder_for_amphora_subflow.add(
database_tasks.CreateAmphoraInDB(name=sf_name + '-' +
constants.CREATE_AMPHORA_INDB,
provides=constants.AMPHORA_ID))
vthunder_for_amphora_subflow.add(
a10_database_tasks.ValidateComputeForProject(
name=sf_name + '-' + a10constants.VALIDATE_COMPUTE_FOR_PROJECT,
requires=constants.LOADBALANCER,
inject={"role": role},
provides=constants.COMPUTE_ID))
vthunder_for_amphora_subflow.add(
database_tasks.UpdateAmphoraComputeId(
name=sf_name + '-' + constants.UPDATE_AMPHORA_COMPUTEID,
requires=(constants.AMPHORA_ID, constants.COMPUTE_ID)))
vthunder_for_amphora_subflow.add(
compute_tasks.ComputeActiveWait(
name=sf_name + '-' + constants.COMPUTE_WAIT,
requires=(constants.COMPUTE_ID, constants.AMPHORA_ID),
provides=constants.COMPUTE_OBJ))
vthunder_for_amphora_subflow.add(
database_tasks.UpdateAmphoraInfo(
name=sf_name + '-' + constants.UPDATE_AMPHORA_INFO,
requires=(constants.AMPHORA_ID, constants.COMPUTE_OBJ),
provides=constants.AMPHORA))
# create vThunder entry in custom DB
vthunder_for_amphora_subflow.add(
a10_database_tasks.CreateVThunderEntry(
name=sf_name + '-' + a10constants.CREATE_VTHUNDER_ENTRY,
requires=(constants.AMPHORA, constants.LOADBALANCER),
inject={
"role": role,
"status": constants.PENDING_CREATE
}))
# Get VThunder details from database
vthunder_for_amphora_subflow.add(
a10_database_tasks.GetVThunderByLoadBalancer(
name=sf_name + '-' + a10constants.VTHUNDER_BY_LB,
requires=constants.LOADBALANCER,
provides=a10constants.VTHUNDER))
vthunder_for_amphora_subflow.add(
database_tasks.ReloadLoadBalancer(
name=sf_name + '-' + constants.RELOADLOAD_BALANCER,
requires=constants.LOADBALANCER_ID,
provides=constants.LOADBALANCER))
vthunder_for_amphora_subflow.add(
a10_network_tasks.GetLBResourceSubnet(
name=sf_name + '-' + a10constants.GET_LB_RESOURCE,
rebind={a10constants.LB_RESOURCE: constants.LOADBALANCER},
provides=constants.SUBNET))
vthunder_for_amphora_subflow.add(
a10_database_tasks.GetChildProjectsOfParentPartition(
name=sf_name + '-' + a10constants.GET_PROJECT_COUNT,
requires=[a10constants.VTHUNDER],
rebind={a10constants.LB_RESOURCE: constants.LOADBALANCER},
provides=a10constants.PARTITION_PROJECT_LIST))
vthunder_for_amphora_subflow.add(
a10_database_tasks.CountLoadbalancersInProjectBySubnet(
name=sf_name + '-' + a10constants.GET_LB_COUNT_SUBNET,
requires=[
constants.SUBNET, a10constants.PARTITION_PROJECT_LIST
],
provides=a10constants.LB_COUNT_SUBNET))
vthunder_for_amphora_subflow.add(
a10_network_tasks.AllocateVIP(
name=sf_name + '-' + a10constants.ALLOCATE_VIP,
requires=[
constants.LOADBALANCER, a10constants.LB_COUNT_SUBNET
],
provides=constants.VIP))
vthunder_for_amphora_subflow.add(
database_tasks.UpdateVIPAfterAllocation(
name=sf_name + '-' + a10constants.UPDATE_VIP_AFTER_ALLOCATION,
requires=(constants.LOADBALANCER_ID, constants.VIP),
provides=constants.LOADBALANCER))
vthunder_for_amphora_subflow.add(
database_tasks.MarkAmphoraAllocatedInDB(
name=sf_name + '-' + constants.MARK_AMPHORA_ALLOCATED_INDB,
requires=(constants.AMPHORA, constants.LOADBALANCER_ID)))
vthunder_for_amphora_subflow.add(
database_tasks.ReloadAmphora(name=sf_name + '-' +
constants.RELOAD_AMPHORA,
requires=constants.AMPHORA_ID,
provides=constants.AMPHORA))
vthunder_for_amphora_subflow.add(
vthunder_tasks.AllowL2DSR(
name=sf_name + '-' + a10constants.ALLOW_L2DSR,
requires=(constants.SUBNET, constants.AMPHORA)))
if role == constants.ROLE_MASTER:
vthunder_for_amphora_subflow.add(
database_tasks.MarkAmphoraMasterInDB(
name=sf_name + '-' + constants.MARK_AMP_MASTER_INDB,
requires=constants.AMPHORA))
elif role == constants.ROLE_BACKUP:
vthunder_for_amphora_subflow.add(
database_tasks.MarkAmphoraBackupInDB(
name=sf_name + '-' + constants.MARK_AMP_BACKUP_INDB,
requires=constants.AMPHORA))
elif role == constants.ROLE_STANDALONE:
vthunder_for_amphora_subflow.add(
database_tasks.MarkAmphoraStandAloneInDB(
name=sf_name + '-' + constants.MARK_AMP_STANDALONE_INDB,
requires=constants.AMPHORA))
return vthunder_for_amphora_subflow
def _get_create_amp_for_lb_subflow(self, prefix, role):
"""Flow to create a new vThunder for lb."""
sf_name = prefix + '-' + constants.CREATE_AMP_FOR_LB_SUBFLOW
create_amp_for_lb_subflow = linear_flow.Flow(sf_name)
create_amp_for_lb_subflow.add(
database_tasks.CreateAmphoraInDB(name=sf_name + '-' +
constants.CREATE_AMPHORA_INDB,
provides=constants.AMPHORA_ID))
# VIP subnet integration at bootup
create_amp_for_lb_subflow.add(
database_tasks.ReloadLoadBalancer(
name=sf_name + '-' + constants.RELOADLOAD_BALANCER,
requires=constants.LOADBALANCER_ID,
provides=constants.LOADBALANCER))
require_server_group_id_condition = (
role in (constants.ROLE_BACKUP, constants.ROLE_MASTER)
and CONF.a10_nova.enable_anti_affinity)
if require_server_group_id_condition:
create_amp_for_lb_subflow.add(
compute_tasks.ComputeCreate(
name=sf_name + '-' + constants.COMPUTE_CREATE,
requires=(constants.AMPHORA_ID,
constants.BUILD_TYPE_PRIORITY,
constants.SERVER_GROUP_ID,
constants.LOADBALANCER),
provides=constants.COMPUTE_ID))
else:
create_amp_for_lb_subflow.add(
compute_tasks.ComputeCreate(
name=sf_name + '-' + constants.COMPUTE_CREATE,
requires=(constants.AMPHORA_ID,
constants.BUILD_TYPE_PRIORITY,
constants.LOADBALANCER),
provides=constants.COMPUTE_ID))
create_amp_for_lb_subflow.add(
database_tasks.UpdateAmphoraComputeId(
name=sf_name + '-' + constants.UPDATE_AMPHORA_COMPUTEID,
requires=(constants.AMPHORA_ID, constants.COMPUTE_ID)))
create_amp_for_lb_subflow.add(
database_tasks.MarkAmphoraBootingInDB(
name=sf_name + '-' + constants.MARK_AMPHORA_BOOTING_INDB,
requires=(constants.AMPHORA_ID, constants.COMPUTE_ID)))
create_amp_for_lb_subflow.add(
compute_tasks.ComputeActiveWait(
name=sf_name + '-' + constants.COMPUTE_WAIT,
requires=(constants.COMPUTE_ID, constants.AMPHORA_ID),
provides=constants.COMPUTE_OBJ))
create_amp_for_lb_subflow.add(
database_tasks.UpdateAmphoraInfo(
name=sf_name + '-' + constants.UPDATE_AMPHORA_INFO,
requires=(constants.AMPHORA_ID, constants.COMPUTE_OBJ),
provides=constants.AMPHORA))
# create vThunder entry in custom DB
create_amp_for_lb_subflow.add(
a10_database_tasks.CreateVThunderEntry(
name=sf_name + '-' + a10constants.CREATE_VTHUNDER_ENTRY,
requires=(constants.AMPHORA, constants.LOADBALANCER),
inject={
a10constants.ROLE: role,
a10constants.STATUS: constants.PENDING_CREATE
}))
# Get VThunder details from database
create_amp_for_lb_subflow.add(
a10_database_tasks.GetVThunderByLoadBalancer(
name=sf_name + '-' + a10constants.VTHUNDER_BY_LB,
requires=constants.LOADBALANCER,
provides=a10constants.VTHUNDER))
create_amp_for_lb_subflow.add(
vthunder_tasks.VThunderComputeConnectivityWait(
name=sf_name + '-' +
a10constants.WAIT_FOR_VTHUNDER_CONNECTIVITY,
requires=(a10constants.VTHUNDER, constants.AMPHORA)))
create_amp_for_lb_subflow.add(
database_tasks.MarkAmphoraAllocatedInDB(
name=sf_name + '-' + constants.MARK_AMPHORA_ALLOCATED_INDB,
requires=(constants.AMPHORA, constants.LOADBALANCER_ID)))
create_amp_for_lb_subflow.add(
database_tasks.ReloadAmphora(name=sf_name + '-' +
constants.RELOAD_AMPHORA,
requires=constants.AMPHORA_ID,
provides=constants.AMPHORA))
create_amp_for_lb_subflow.add(
a10_network_tasks.GetLBResourceSubnet(
name=sf_name + '-' + a10constants.GET_LB_RESOURCE,
rebind={a10constants.LB_RESOURCE: constants.LOADBALANCER},
provides=constants.SUBNET))
create_amp_for_lb_subflow.add(
vthunder_tasks.AllowL2DSR(
name=sf_name + '-' + a10constants.ALLOW_L2DSR,
requires=(constants.SUBNET, constants.AMPHORA)))
if role == constants.ROLE_MASTER:
create_amp_for_lb_subflow.add(
database_tasks.MarkAmphoraMasterInDB(
name=sf_name + '-' + constants.MARK_AMP_MASTER_INDB,
requires=constants.AMPHORA))
elif role == constants.ROLE_BACKUP:
create_amp_for_lb_subflow.add(
database_tasks.MarkAmphoraBackupInDB(
name=sf_name + '-' + constants.MARK_AMP_BACKUP_INDB,
requires=constants.AMPHORA))
elif role == constants.ROLE_STANDALONE:
create_amp_for_lb_subflow.add(
database_tasks.MarkAmphoraStandAloneInDB(
name=sf_name + '-' + constants.MARK_AMP_STANDALONE_INDB,
requires=constants.AMPHORA))
return create_amp_for_lb_subflow
def _get_create_amp_for_lb_subflow(self, prefix, role):
"""Create a new amphora for lb."""
sf_name = prefix + '-' + constants.CREATE_AMP_FOR_LB_SUBFLOW
create_amp_for_lb_subflow = linear_flow.Flow(sf_name)
create_amp_for_lb_subflow.add(database_tasks.CreateAmphoraInDB(
name=sf_name + '-' + constants.CREATE_AMPHORA_INDB,
provides=constants.AMPHORA_ID))
anti_affinity = CONF.nova.enable_anti_affinity
if self.REST_AMPHORA_DRIVER:
create_amp_for_lb_subflow.add(cert_task.GenerateServerPEMTask(
name=sf_name + '-' + constants.GENERATE_SERVER_PEM,
provides=constants.SERVER_PEM))
create_amp_for_lb_subflow.add(
database_tasks.UpdateAmphoraDBCertExpiration(
name=sf_name + '-' + constants.UPDATE_CERT_EXPIRATION,
requires=(constants.AMPHORA_ID, constants.SERVER_PEM)))
if role in (constants.ROLE_BACKUP, constants.ROLE_MASTER
) and anti_affinity:
create_amp_for_lb_subflow.add(compute_tasks.CertComputeCreate(
name=sf_name + '-' + constants.CERT_COMPUTE_CREATE,
requires=(constants.AMPHORA_ID, constants.SERVER_PEM,
constants.SERVER_GROUP_ID),
provides=constants.COMPUTE_ID))
else:
create_amp_for_lb_subflow.add(compute_tasks.CertComputeCreate(
name=sf_name + '-' + constants.CERT_COMPUTE_CREATE,
requires=(constants.AMPHORA_ID, constants.SERVER_PEM),
provides=constants.COMPUTE_ID))
else:
if role in (constants.ROLE_BACKUP, constants.ROLE_MASTER
) and anti_affinity:
create_amp_for_lb_subflow.add(compute_tasks.ComputeCreate(
name=sf_name + '-' + constants.COMPUTE_CREATE,
requires=(constants.AMPHORA_ID, constants.SERVER_GROUP_ID),
provides=constants.COMPUTE_ID))
else:
create_amp_for_lb_subflow.add(compute_tasks.ComputeCreate(
name=sf_name + '-' + constants.COMPUTE_CREATE,
requires=constants.AMPHORA_ID,
provides=constants.COMPUTE_ID))
create_amp_for_lb_subflow.add(database_tasks.UpdateAmphoraComputeId(
name=sf_name + '-' + constants.UPDATE_AMPHORA_COMPUTEID,
requires=(constants.AMPHORA_ID, constants.COMPUTE_ID)))
create_amp_for_lb_subflow.add(database_tasks.MarkAmphoraBootingInDB(
name=sf_name + '-' + constants.MARK_AMPHORA_BOOTING_INDB,
requires=(constants.AMPHORA_ID, constants.COMPUTE_ID)))
create_amp_for_lb_subflow.add(compute_tasks.ComputeWait(
name=sf_name + '-' + constants.COMPUTE_WAIT,
requires=constants.COMPUTE_ID,
provides=constants.COMPUTE_OBJ))
create_amp_for_lb_subflow.add(database_tasks.UpdateAmphoraInfo(
name=sf_name + '-' + constants.UPDATE_AMPHORA_INFO,
requires=(constants.AMPHORA_ID, constants.COMPUTE_OBJ),
provides=constants.AMPHORA))
create_amp_for_lb_subflow.add(amphora_driver_tasks.AmphoraFinalize(
name=sf_name + '-' + constants.AMPHORA_FINALIZE,
requires=constants.AMPHORA))
create_amp_for_lb_subflow.add(
database_tasks.MarkAmphoraAllocatedInDB(
name=sf_name + '-' + constants.MARK_AMPHORA_ALLOCATED_INDB,
requires=(constants.AMPHORA, constants.LOADBALANCER_ID)))
create_amp_for_lb_subflow.add(database_tasks.ReloadAmphora(
name=sf_name + '-' + constants.RELOAD_AMPHORA,
requires=constants.AMPHORA_ID,
provides=constants.AMPHORA))
if role == constants.ROLE_MASTER:
create_amp_for_lb_subflow.add(database_tasks.MarkAmphoraMasterInDB(
name=sf_name + '-' + constants.MARK_AMP_MASTER_INDB,
requires=constants.AMPHORA))
elif role == constants.ROLE_BACKUP:
create_amp_for_lb_subflow.add(database_tasks.MarkAmphoraBackupInDB(
name=sf_name + '-' + constants.MARK_AMP_BACKUP_INDB,
requires=constants.AMPHORA))
elif role == constants.ROLE_STANDALONE:
create_amp_for_lb_subflow.add(
database_tasks.MarkAmphoraStandAloneInDB(
name=sf_name + '-' + constants.MARK_AMP_STANDALONE_INDB,
requires=constants.AMPHORA))
return create_amp_for_lb_subflow
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_failover_flow(self,
role=constants.ROLE_STANDALONE,
load_balancer_id=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_id:
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(
amphora_driver_tasks.ListenersUpdate(
requires=(constants.LOADBALANCER, constants.LISTENERS)))
# Plug the VIP ports into the new 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)))
# Plug the member networks into the new amphora
failover_amphora_flow.add(
network_tasks.CalculateDelta(requires=constants.LOADBALANCER,
provides=constants.DELTAS))
failover_amphora_flow.add(
network_tasks.HandleNetworkDeltas(requires=constants.DELTAS,
provides=constants.ADDED_PORTS))
failover_amphora_flow.add(
amphora_driver_tasks.AmphoraePostNetworkPlug(
requires=(constants.LOADBALANCER, constants.ADDED_PORTS)))
# 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)))
failover_amphora_flow.add(
database_tasks.DisableAmphoraHealthMonitoring(
rebind={constants.AMPHORA: constants.FAILED_AMPHORA},
requires=constants.AMPHORA))
return failover_amphora_flow
def get_failover_flow(self,
role=constants.ROLE_STANDALONE,
status=constants.AMPHORA_READY):
"""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))
if status == constants.AMPHORA_ALLOCATED:
failover_amphora_flow.add(
database_tasks.TestLBStatusSetPendingInDB(
requires=constants.LOADBALANCER_ID))
# 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.DisableAmphoraHealthMonitoring(
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 status != constants.AMPHORA_ALLOCATED:
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(
amphora_driver_tasks.ListenersUpdate(
requires=(constants.LOADBALANCER, constants.LISTENERS)))
# Plug the VIP ports into the new 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)))
# Plug the member networks into the new amphora
failover_amphora_flow.add(
network_tasks.CalculateDelta(requires=constants.LOADBALANCER,
provides=constants.DELTAS))
failover_amphora_flow.add(
network_tasks.HandleNetworkDeltas(requires=constants.DELTAS,
provides=constants.ADDED_PORTS))
failover_amphora_flow.add(
amphora_driver_tasks.AmphoraePostNetworkPlug(
requires=(constants.LOADBALANCER, constants.ADDED_PORTS)))
# 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)))
failover_amphora_flow.add(
database_tasks.MarkLBActiveInDB(requires=[constants.LOADBALANCER]))
return failover_amphora_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_failover_flow(self):
"""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(
network_tasks.RetrievePortIDsOnAmphoraExceptLBNetwork(
requires=constants.AMPHORA, provides=constants.PORTS))
failover_amphora_flow.add(
network_tasks.FailoverPreparationForAmphora(
requires=constants.AMPHORA))
failover_amphora_flow.add(
compute_tasks.ComputeDelete(requires=constants.AMPHORA))
failover_amphora_flow.add(
database_tasks.MarkAmphoraDeletedInDB(requires=constants.AMPHORA))
failover_amphora_flow.add(
database_tasks.CreateAmphoraInDB(provides=constants.AMPHORA_ID))
failover_amphora_flow.add(
database_tasks.GetUpdatedFailoverAmpNetworkDetailsAsList(
requires=(constants.AMPHORA_ID, constants.AMPHORA),
provides=constants.AMPS_DATA))
if self.REST_AMPHORA_DRIVER:
failover_amphora_flow.add(
cert_task.GenerateServerPEMTask(provides=constants.SERVER_PEM))
failover_amphora_flow.add(
compute_tasks.CertComputeCreate(
requires=(constants.AMPHORA_ID, constants.SERVER_PEM),
provides=constants.COMPUTE_ID))
else:
failover_amphora_flow.add(
compute_tasks.ComputeCreate(requires=constants.AMPHORA_ID,
provides=constants.COMPUTE_ID))
failover_amphora_flow.add(
database_tasks.UpdateAmphoraComputeId(
requires=(constants.AMPHORA_ID, constants.COMPUTE_ID)))
failover_amphora_flow.add(
database_tasks.AssociateFailoverAmphoraWithLBID(
requires=(constants.AMPHORA_ID, constants.LOADBALANCER_ID)))
failover_amphora_flow.add(
database_tasks.MarkAmphoraBootingInDB(
requires=(constants.AMPHORA_ID, constants.COMPUTE_ID)))
wait_flow = linear_flow.Flow(
constants.WAIT_FOR_AMPHORA,
retry=retry.Times(CONF.controller_worker.amp_active_retries))
wait_flow.add(
compute_tasks.ComputeWait(requires=constants.COMPUTE_ID,
provides=constants.COMPUTE_OBJ))
wait_flow.add(
database_tasks.UpdateAmphoraInfo(requires=(constants.AMPHORA_ID,
constants.COMPUTE_OBJ),
provides=constants.AMPHORA))
failover_amphora_flow.add(wait_flow)
failover_amphora_flow.add(
database_tasks.ReloadAmphora(requires=constants.AMPHORA_ID,
provides=constants.FAILOVER_AMPHORA))
failover_amphora_flow.add(
amphora_driver_tasks.AmphoraFinalize(
rebind={constants.AMPHORA: constants.FAILOVER_AMPHORA},
requires=constants.AMPHORA))
failover_amphora_flow.add(
database_tasks.UpdateAmphoraVIPData(requires=constants.AMPS_DATA))
failover_amphora_flow.add(
database_tasks.ReloadLoadBalancer(
requires=constants.LOADBALANCER_ID,
provides=constants.LOADBALANCER))
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.GetVipFromLoadbalancer(
requires=constants.LOADBALANCER, provides=constants.VIP))
failover_amphora_flow.add(
amphora_driver_tasks.ListenersUpdate(requires=(constants.LISTENERS,
constants.VIP)))
failover_amphora_flow.add(
amphora_driver_tasks.AmphoraPostVIPPlug(
requires=(constants.LOADBALANCER,
constants.AMPHORAE_NETWORK_CONFIG)))
failover_amphora_flow.add(
network_tasks.GetMemberPorts(
rebind={constants.AMPHORA: constants.FAILOVER_AMPHORA},
requires=(constants.LOADBALANCER, constants.AMPHORA),
provides=constants.MEMBER_PORTS))
failover_amphora_flow.add(
amphora_driver_tasks.AmphoraPostNetworkPlug(
rebind={
constants.AMPHORA: constants.FAILOVER_AMPHORA,
constants.PORTS: constants.MEMBER_PORTS
},
requires=(constants.AMPHORA, constants.PORTS)))
failover_amphora_flow.add(
amphora_driver_tasks.ListenersStart(requires=(constants.LISTENERS,
constants.VIP)))
failover_amphora_flow.add(
database_tasks.MarkAmphoraAllocatedInDB(
rebind={constants.AMPHORA: constants.FAILOVER_AMPHORA},
requires=(constants.AMPHORA, constants.LOADBALANCER_ID)))
return failover_amphora_flow
