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 (CONF.controller_worker.amphora_driver ==
'amphora_haproxy_rest_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, constants.FLAVOR),
provides=constants.COMPUTE_ID))
else:
create_amphora_flow.add(
compute_tasks.ComputeCreate(
requires=(constants.AMPHORA_ID,
constants.BUILD_TYPE_PRIORITY, constants.FLAVOR),
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))
retry_subflow = linear_flow.Flow(
constants.CREATE_AMPHORA_RETRY_SUBFLOW,
retry=amphora_driver_tasks.AmpRetry())
retry_subflow.add(
amphora_driver_tasks.AmphoraComputeConnectivityWait(
requires=constants.AMPHORA,
inject={'raise_retry_exception': True}))
create_amphora_flow.add(retry_subflow)
create_amphora_flow.add(
database_tasks.ReloadAmphora(requires=constants.AMPHORA,
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 _retry_flow(self, sf_name):
retry_task = sf_name + '-' + constants.AMP_COMPUTE_CONNECTIVITY_WAIT
retry_subflow = linear_flow.Flow(
sf_name + '-' + constants.CREATE_AMPHORA_RETRY_SUBFLOW,
retry=amphora_driver_tasks.AmpRetry())
retry_subflow.add(
amphora_driver_tasks.AmphoraComputeConnectivityWait(
name=retry_task, requires=constants.AMPHORA,
inject={'raise_retry_exception': True}))
return retry_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))
require_server_group_id_condition = (
role in (constants.ROLE_BACKUP, constants.ROLE_MASTER) and
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 require_server_group_id_condition:
create_amp_for_lb_subflow.add(compute_tasks.CertComputeCreate(
name=sf_name + '-' + constants.CERT_COMPUTE_CREATE,
requires=(
constants.AMPHORA_ID,
constants.SERVER_PEM,
constants.BUILD_TYPE_PRIORITY,
constants.SERVER_GROUP_ID,
constants.FLAVOR,
constants.AVAILABILITY_ZONE,
),
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,
constants.BUILD_TYPE_PRIORITY,
constants.FLAVOR,
constants.AVAILABILITY_ZONE,
),
provides=constants.COMPUTE_ID))
else:
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.FLAVOR,
constants.AVAILABILITY_ZONE,
),
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.FLAVOR,
constants.AVAILABILITY_ZONE,
),
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))
retry_task = sf_name + '-' + constants.AMP_COMPUTE_CONNECTIVITY_WAIT
retry_subflow = linear_flow.Flow(
constants.CREATE_AMPHORA_RETRY_SUBFLOW,
retry=amphora_driver_tasks.AmpRetry())
retry_subflow.add(
amphora_driver_tasks.AmphoraComputeConnectivityWait(
name=retry_task, requires=constants.AMPHORA,
inject={'raise_retry_exception': True}))
create_amp_for_lb_subflow.add(retry_subflow)
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