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