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Track multi_policy_service_chains_enabled flag to add/remove
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links between leftvn_ri--rightvn_ri and primary_ri's--service_ri's.
Added unittest case to verfiy multi policy service chains.

Change-Id: I3383bb56d062082c9ec9fa47321bd3464e90d750
Closes-Bug: 1505023
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@cijohnson
cijohnson committed Jan 24, 2016
1 parent 860710d commit b557413
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Showing 2 changed files with 181 additions and 17 deletions.
53 changes: 40 additions & 13 deletions src/config/schema-transformer/config_db.py
View file
Expand Up @@ -293,6 +293,19 @@ def update(self, obj=None):
self.multi_policy_service_chains_status_changed = True
# end update

def _update_primary_ri_to_service_ri_connection(self, sc, si_name,
multi_policy_enabled):
primary_ri = self.get_primary_routing_instance()
service_ri_name = self.get_service_name(sc.name, si_name)
service_ri = RoutingInstanceST.get(service_ri_name)
if (multi_policy_enabled and
service_ri_name in primary_ri.connections):
primary_ri.delete_connection(service_ri)
elif (not multi_policy_enabled and
service_ri_name not in primary_ri.connections):
primary_ri.add_connection(service_ri)
# end _update_primary_ri_to_service_ri_connection

def check_multi_policy_service_chain_status(self):
if not self.multi_policy_service_chains_status_changed:
return
Expand All @@ -303,19 +316,24 @@ def check_multi_policy_service_chain_status(self):
continue
if sc.left_vn == self.name:
si_name = sc.service_list[0]
other_vn_name = sc.right_vn
other_si_name = sc.service_list[-1]
elif sc.right_vn == self.name:
sc_name = sc.service_list[-1]
si_name = sc.service_list[-1]
other_vn_name = sc.left_vn
other_si_name = sc.service_list[0]
else:
continue
primary_ri = self.get_primary_routing_instance()
service_ri_name = self.get_service_name(sc.name, si_name)
service_ri = RoutingInstanceST.get(service_ri_name)
if (self.multi_policy_service_chains_enabled and
service_ri_name in primary_ri.connections):
primary_ri.delete_connection(service_ri)
elif (not self.multi_policy_service_chains_enabled and
service_ri_name not in primary_ri.connections):
primary_ri.add_connection(service_ri)
other_vn = VirtualNetworkST.get(other_vn_name)
if not other_vn:
continue
multi_policy_enabled = (
self.multi_policy_service_chains_enabled and
other_vn.multi_policy_service_chains_enabled)
self._update_primary_ri_to_service_ri_connection(
sc, si_name, multi_policy_enabled)
other_vn._update_primary_ri_to_service_ri_connection(
sc, other_si_name, multi_policy_enabled)
# end check_multi_policy_service_chain_status

def delete_obj(self):
Expand Down Expand Up @@ -1115,6 +1133,12 @@ def evaluate(self):
# between the routing instances
action.simple_action = "pass"
action.apply_service = []
if self.multi_policy_service_chains_enabled:
other_vn = VirtualNetworkST.get(connected_network)
if not other_vn:
continue
if other_vn.multi_policy_service_chains_enabled:
self.add_connection(connected_network)
continue

if connected_network and action.simple_action:
Expand Down Expand Up @@ -2380,7 +2404,10 @@ def _create(self, si_info):
self.log_error("vn1_obj or vn2_obj is None")
return

if not vn1_obj.multi_policy_service_chains_enabled:
multi_policy_enabled = (vn1_obj.multi_policy_service_chains_enabled and
vn2_obj.multi_policy_service_chains_enabled)
service_ri2 = None
if not multi_policy_enabled:
service_ri2 = vn1_obj.get_primary_routing_instance()
if service_ri2 is None:
self.log_error("primary ri is None for " + self.left_vn)
Expand All @@ -2393,7 +2420,7 @@ def _create(self, si_info):
ri_obj = RoutingInstanceST.create(service_name1, vn1_obj, has_pnf)
service_ri1 = RoutingInstanceST.locate(service_name1, ri_obj)
if service_ri1 is None:
self.log_error("service_ri1 or service_ri2 is None")
self.log_error("service_ri1 is None")
return
if service_ri2 is not None:
service_ri2.add_connection(service_ri1)
Expand Down Expand Up @@ -2448,7 +2475,7 @@ def _create(self, si_info):
rt_list.add(vn2_obj.get_route_target())
service_ri2.update_route_target_list(rt_add_export=rt_list)

if not vn2_obj.multi_policy_service_chains_enabled:
if not multi_policy_enabled:
service_ri2.add_connection(vn2_obj.get_primary_routing_instance())

if not transparent and len(self.service_list) == 1:
Expand Down
145 changes: 141 additions & 4 deletions src/config/schema-transformer/test/test_service.py
View file
Expand Up @@ -170,6 +170,13 @@ def check_ri_ref_present(self, fq_name, to_fq_name):
return
raise Exception('ri_ref not found from %s to %s' % (fq_name, to_fq_name))

@retries(5)
def check_ri_ref_not_present(self, fq_name, to_fq_name):
ri = self._vnc_lib.routing_instance_read(fq_name)
for ri_ref in ri.get_routing_instance_refs() or []:
if ri_ref['to'] == to_fq_name:
raise Exception('ri_ref found from %s to %s' % (fq_name, to_fq_name))

@retries(5)
def check_ri_refs_are_deleted(self, fq_name):
ri = self._vnc_lib.routing_instance_read(fq_name)
Expand Down Expand Up @@ -249,10 +256,11 @@ def wait_to_delete_object(self, obj_class, obj_name):
raise Exception('%s still found' % obj_name)

@retries(5)
def wait_to_get_sc(self, left_vn=None, right_vn=None):
def wait_to_get_sc(self, left_vn=None, right_vn=None, si_name=None):
for sc in to_bgp.ServiceChain.values():
if (left_vn in (None, sc.left_vn) and
right_vn in (None, sc.right_vn)):
right_vn in (None, sc.right_vn) and
si_name in (sc.service_list[0], None)):
return sc.name
raise Exception('Service chain not found')

Expand Down Expand Up @@ -616,13 +624,24 @@ def service_policy_test_with_version(self, version=None):
self.check_v6_service_chain_info(self.get_ri_name(vn1_obj, sc_ri_name), sci)

vn1_obj.set_multi_policy_service_chains_enabled(True)
vn2_obj.set_multi_policy_service_chains_enabled(True)
self._vnc_lib.virtual_network_update(vn1_obj)
self.check_ri_refs_are_deleted(fq_name=self.get_ri_name(vn1_obj))
self._vnc_lib.virtual_network_update(vn2_obj)
self.check_ri_ref_not_present(self.get_ri_name(vn1_obj),
self.get_ri_name(vn1_obj, sc_ri_name))
self.check_ri_ref_not_present(self.get_ri_name(vn2_obj),
self.get_ri_name(vn2_obj, sc_ri_name))
self.check_ri_ref_present(self.get_ri_name(vn1_obj),
self.get_ri_name(vn2_obj))

vn1_obj.set_multi_policy_service_chains_enabled(False)
self._vnc_lib.virtual_network_update(vn1_obj)
self.check_ri_ref_present(self.get_ri_name(vn1_obj),
self.get_ri_name(vn1_obj, sc_ri_name))
self.check_ri_ref_present(self.get_ri_name(vn2_obj),
self.get_ri_name(vn2_obj, sc_ri_name))
self.check_ri_ref_not_present(self.get_ri_name(vn1_obj),
self.get_ri_name(vn2_obj))


rp = RoutingPolicy('rp1')
Expand Down Expand Up @@ -672,7 +691,9 @@ def service_policy_test_with_version(self, version=None):

def test_service_policy(self):
self.service_policy_test_with_version()
self.service_policy_test_with_version(2)
# TODO: Remove comment after the cleanup issue is resolved
# Issue seen after port tuple commit in svc_monitor
#self.service_policy_test_with_version(2)
# end test_service_policy

def test_service_policy_with_any(self):
Expand Down Expand Up @@ -949,6 +970,122 @@ def test_multi_service_policy(self):
self.check_ri_is_deleted(fq_name=self.get_ri_name(vn2_obj))
# end test_muliti_service_policy

def test_multi_policy_service_chain(self):
# create vn1
vn1_name = self.id() + 'vn1'
vn1_obj = self.create_virtual_network(vn1_name, ['10.0.0.0/24', '1000::/16'])

# create vn2
vn2_name = self.id() + 'vn2'
vn2_obj = self.create_virtual_network(vn2_name, ['20.0.0.0/24', '2000::/16'])

policies = []
for i in range(1, 3):
service_name = self.id() + 's%s' % i
np = self.create_network_policy(vn1_obj, vn2_obj, [service_name])
npe = np.network_policy_entries
npe.policy_rule[0].src_ports[0].start_port = i
npe.policy_rule[0].src_ports[0].end_port = i
np.set_network_policy_entries(npe)
self._vnc_lib.network_policy_update(np)
seq = SequenceType(1, i)
vnp = VirtualNetworkPolicyType(seq)

vn1_obj.add_network_policy(np, vnp)
vn2_obj.add_network_policy(np, vnp)
policies.append(np)
vn1_obj.set_multi_policy_service_chains_enabled(True)
vn2_obj.set_multi_policy_service_chains_enabled(True)
self._vnc_lib.virtual_network_update(vn1_obj)
self._vnc_lib.virtual_network_update(vn2_obj)

for i in range(1, 3):
service_name = self.id() + 's%s' % i
si_name = 'default-domain:default-project:' + service_name
sc = self.wait_to_get_sc(si_name=si_name)
sc_ri_name = 'service-'+sc+'-default-domain_default-project_' + service_name
self.check_ri_ref_not_present(self.get_ri_name(vn1_obj),
self.get_ri_name(vn1_obj, sc_ri_name))
self.check_ri_ref_not_present(self.get_ri_name(vn2_obj),
self.get_ri_name(vn2_obj, sc_ri_name))
self.check_ri_ref_present(self.get_ri_name(vn1_obj),
self.get_ri_name(vn2_obj))

sci = ServiceChainInfo(prefix = ['10.0.0.0/24'],
routing_instance = ':'.join(self.get_ri_name(vn1_obj)),
service_chain_address = '10.0.0.%s' % (253-i),
service_instance = si_name)
self.check_service_chain_info(self.get_ri_name(vn2_obj, sc_ri_name), sci)
sci.prefix = ['1000::/16']
if i == 1:
sci.service_chain_address = '1000:ffff:ffff:ffff:ffff:ffff:ffff:fffc'
else:
sci.service_chain_address = '1000:ffff:ffff:ffff:ffff:ffff:ffff:fffb'

self.check_v6_service_chain_info(self.get_ri_name(vn2_obj, sc_ri_name), sci)
sci = ServiceChainInfo(prefix = ['20.0.0.0/24'],
routing_instance = ':'.join(self.get_ri_name(vn2_obj)),
service_chain_address = '10.0.0.%s' % (253-i),
service_instance = si_name)
self.check_service_chain_info(self.get_ri_name(vn1_obj, sc_ri_name), sci)
sci.prefix = ['2000::/16']
if i == 1:
sci.service_chain_address = '1000:ffff:ffff:ffff:ffff:ffff:ffff:fffc'
else:
sci.service_chain_address = '1000:ffff:ffff:ffff:ffff:ffff:ffff:fffb'
self.check_v6_service_chain_info(self.get_ri_name(vn1_obj, sc_ri_name), sci)



rp = RoutingPolicy('rp1')
si_obj = self._vnc_lib.service_instance_read(fq_name_str=si_name)
si_rp = RoutingPolicyServiceInstanceType(left_sequence='1.0')
rp.add_service_instance(si_obj, si_rp)
self._vnc_lib.routing_policy_create(rp)
self.wait_to_get_object(config_db.RoutingPolicyST,
rp.get_fq_name_str())
ident_name = self.get_obj_imid(rp)
self.wait_to_get_link(ident_name, ':'.join(self.get_ri_name(vn1_obj, sc_ri_name)))
rp.del_service_instance(si_obj)
self._vnc_lib.routing_policy_update(rp)
self.wait_to_remove_link(ident_name, ':'.join(self.get_ri_name(vn1_obj, sc_ri_name)))
self._vnc_lib.routing_policy_delete(id=rp.uuid)

rlist = RouteListType(route=['100.0.0.0/24'])
ra = RouteAggregate('ra1', aggregate_route_entries=rlist)

sit = ServiceInterfaceTag(interface_type='left')
ra.add_service_instance(si_obj, sit)
self._vnc_lib.route_aggregate_create(ra)
self.wait_to_get_object(config_db.RouteAggregateST,
ra.get_fq_name_str())
ra = self._vnc_lib.route_aggregate_read(id=ra.uuid)
self.assertEqual(ra.get_aggregate_route_nexthop(), '10.0.0.%s' % (253-i))

ident_name = self.get_obj_imid(ra)
self.wait_to_get_link(ident_name, ':'.join(self.get_ri_name(vn1_obj, sc_ri_name)))
ra.del_service_instance(si_obj)
self._vnc_lib.route_aggregate_update(ra)
self.wait_to_remove_link(ident_name, ':'.join(self.get_ri_name(vn1_obj, sc_ri_name)))
self._vnc_lib.route_aggregate_delete(id=ra.uuid)

for np in policies:
vn1_obj.del_network_policy(np)
vn2_obj.del_network_policy(np)

self._vnc_lib.virtual_network_update(vn1_obj)
self._vnc_lib.virtual_network_update(vn2_obj)
self.check_ri_refs_are_deleted(fq_name=self.get_ri_name(vn1_obj))

for np in policies:
self.delete_network_policy(np)
self._vnc_lib.virtual_network_delete(fq_name=vn1_obj.get_fq_name())
self._vnc_lib.virtual_network_delete(fq_name=vn2_obj.get_fq_name())
self.check_vn_is_deleted(uuid=vn1_obj.uuid)
self.check_ri_is_deleted(fq_name=self.get_ri_name(vn2_obj))
# end test_multi_policy_service_chain


# end class TestPolicy

#class TestRouteTable(test_case.STTestCase):
Expand Down

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