def get_post_lb_amp_association_flow(self, prefix, topology,
mark_active=True):
"""Reload the loadbalancer and create networking subflows for
created/allocated amphorae.
:return: Post amphorae association subflow
"""
# Note: If any task in this flow failed, the created amphorae will be
# left ''incorrectly'' allocated to the loadbalancer. Likely,
# the get_new_LB_networking_subflow is the most prune to failure
# shall deallocate the amphora from its loadbalancer and put it in a
# READY state.
sf_name = prefix + '-' + constants.POST_LB_AMP_ASSOCIATION_SUBFLOW
post_create_LB_flow = linear_flow.Flow(sf_name)
post_create_LB_flow.add(
database_tasks.ReloadLoadBalancer(
name=sf_name + '-' + constants.RELOAD_LB_AFTER_AMP_ASSOC,
requires=constants.LOADBALANCER_ID,
provides=constants.LOADBALANCER))
if topology == constants.TOPOLOGY_ACTIVE_STANDBY:
vrrp_subflow = self.amp_flows.get_vrrp_subflow(prefix)
post_create_LB_flow.add(vrrp_subflow)
post_create_LB_flow.add(database_tasks.UpdateLoadbalancerInDB(
requires=[constants.LOADBALANCER, constants.UPDATE_DICT]))
if mark_active:
post_create_LB_flow.add(database_tasks.MarkLBActiveInDB(
name=sf_name + '-' + constants.MARK_LB_ACTIVE_INDB,
requires=constants.LOADBALANCER))
return post_create_LB_flow
def get_post_lb_vthunder_association_flow(self,
prefix,
topology,
mark_active=True):
"""Reload the loadbalancer and create networking subflows for
created/allocated amphorae.
:return: Post amphorae association subflow
"""
sf_name = prefix + '-' + constants.POST_LB_AMP_ASSOCIATION_SUBFLOW
post_create_LB_flow = linear_flow.Flow(sf_name)
post_create_LB_flow.add(
database_tasks.ReloadLoadBalancer(
name=sf_name + '-' + constants.RELOAD_LB_AFTER_AMP_ASSOC,
requires=constants.LOADBALANCER_ID,
provides=constants.LOADBALANCER))
#IMP: here we will inject network flow
new_LB_net_subflow = self.get_new_LB_networking_subflow()
post_create_LB_flow.add(new_LB_net_subflow)
if topology == constants.TOPOLOGY_ACTIVE_STANDBY:
vrrp_subflow = self.amp_flows.get_vrrp_subflow(prefix)
post_create_LB_flow.add(vrrp_subflow)
post_create_LB_flow.add(
database_tasks.UpdateLoadbalancerInDB(
requires=[constants.LOADBALANCER, constants.UPDATE_DICT]))
if mark_active:
post_create_LB_flow.add(
database_tasks.MarkLBActiveInDB(
name=sf_name + '-' + constants.MARK_LB_ACTIVE_INDB,
requires=constants.LOADBALANCER))
return post_create_LB_flow
def get_update_load_balancer_flow(self):
"""Creates a flow to update a load balancer.
:returns: The flow for update a load balancer
"""
update_LB_flow = linear_flow.Flow(constants.UPDATE_LOADBALANCER_FLOW)
update_LB_flow.add(lifecycle_tasks.LoadBalancerToErrorOnRevertTask(
requires=constants.LOADBALANCER))
update_LB_flow.add(network_tasks.ApplyQos(
requires=(constants.LOADBALANCER, constants.UPDATE_DICT)))
update_LB_flow.add(amphora_driver_tasks.ListenersUpdate(
requires=constants.LOADBALANCER_ID))
update_LB_flow.add(database_tasks.UpdateLoadbalancerInDB(
requires=[constants.LOADBALANCER, constants.UPDATE_DICT]))
update_LB_flow.add(database_tasks.MarkLBActiveInDB(
requires=constants.LOADBALANCER))
return update_LB_flow