Load Balancing as a Service (LBaaS) for OpenStack
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# Copyright 2018 OpenStack Foundation
# All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
from octavia.common import constants
from octavia.common.jinja.lvs import jinja_cfg
from octavia.tests.unit import base
from octavia.tests.unit.common.sample_configs import sample_configs_combined
from oslo_config import cfg
from oslo_config import fixture as oslo_fixture
BASE_PATH = '/var/lib/octavia'
class TestLvsCfg(base.TestCase):
def setUp(self):
super(TestLvsCfg, self).setUp()
self.udp_jinja_cfg = jinja_cfg.LvsJinjaTemplater()
conf = oslo_fixture.Config(cfg.CONF)
conf.config(group="haproxy_amphora", base_path=BASE_PATH)
def test_udp_get_template(self):
template = self.udp_jinja_cfg._get_template()
self.assertEqual('keepalivedlvs.cfg.j2', template.name)
def test_render_template_udp_source_ip(self):
exp = ("# Configuration for Loadbalancer sample_loadbalancer_id_1\n"
"# Configuration for Listener sample_listener_id_1\n\n"
"net_namespace amphora-haproxy\n\n"
"virtual_server 10.0.0.2 80 {\n"
" lb_algo rr\n"
" lb_kind NAT\n"
" protocol UDP\n"
" persistence_timeout 33\n"
" persistence_granularity 255.255.0.0\n"
" delay_loop 30\n"
" delay_before_retry 30\n"
" retry 3\n\n\n"
" # Configuration for Pool sample_pool_id_1\n"
" # Configuration for HealthMonitor sample_monitor_id_1\n"
" # Configuration for Member sample_member_id_1\n"
" real_server 10.0.0.99 82 {\n"
" weight 13\n"
" uthreshold 98\n"
" MISC_CHECK {\n"
" misc_path \"/var/lib/octavia/lvs/check/"
"udp_check.sh 10.0.0.99 82\"\n"
" misc_timeout 31\n"
" }\n"
" }\n\n"
" # Configuration for Member sample_member_id_2\n"
" real_server 10.0.0.98 82 {\n"
" weight 13\n"
" uthreshold 98\n"
" MISC_CHECK {\n"
" misc_path \"/var/lib/octavia/lvs/check/"
"udp_check.sh 10.0.0.98 82\"\n"
" misc_timeout 31\n"
" }\n"
" }\n\n"
"}\n\n")
rendered_obj = self.udp_jinja_cfg.render_loadbalancer_obj(
sample_configs_combined.sample_listener_tuple(
proto=constants.PROTOCOL_UDP,
persistence_type=constants.SESSION_PERSISTENCE_SOURCE_IP,
persistence_timeout=33,
persistence_granularity='255.255.0.0',
monitor_proto=constants.HEALTH_MONITOR_UDP_CONNECT,
connection_limit=98))
self.assertEqual(exp, rendered_obj)
def test_render_template_udp_one_packet(self):
exp = ("# Configuration for Loadbalancer sample_loadbalancer_id_1\n"
"# Configuration for Listener sample_listener_id_1\n\n"
"net_namespace amphora-haproxy\n\n"
"virtual_server 10.0.0.2 80 {\n"
" lb_algo rr\n"
" lb_kind NAT\n"
" protocol UDP\n"
" delay_loop 30\n"
" delay_before_retry 30\n"
" retry 3\n\n\n"
" # Configuration for Pool sample_pool_id_1\n"
" # Configuration for HealthMonitor sample_monitor_id_1\n"
" # Configuration for Member sample_member_id_1\n"
" real_server 10.0.0.99 82 {\n"
" weight 13\n"
" uthreshold 98\n"
" MISC_CHECK {\n"
" misc_path \"/var/lib/octavia/lvs/check/"
"udp_check.sh 10.0.0.99 82\"\n"
" misc_timeout 31\n"
" }\n"
" }\n\n"
" # Configuration for Member sample_member_id_2\n"
" real_server 10.0.0.98 82 {\n"
" weight 13\n"
" uthreshold 98\n"
" MISC_CHECK {\n"
" misc_path \"/var/lib/octavia/lvs/check/"
"udp_check.sh 10.0.0.98 82\"\n"
" misc_timeout 31\n"
" }\n"
" }\n\n"
"}\n\n")
listener = sample_configs_combined.sample_listener_tuple(
proto=constants.PROTOCOL_UDP,
monitor_proto=constants.HEALTH_MONITOR_UDP_CONNECT,
connection_limit=98,
persistence=False)
rendered_obj = self.udp_jinja_cfg.render_loadbalancer_obj(listener)
self.assertEqual(exp, rendered_obj)
def test_render_template_udp_with_health_monitor(self):
exp = ("# Configuration for Loadbalancer sample_loadbalancer_id_1\n"
"# Configuration for Listener sample_listener_id_1\n\n"
"net_namespace amphora-haproxy\n\n"
"virtual_server 10.0.0.2 80 {\n"
" lb_algo rr\n"
" lb_kind NAT\n"
" protocol UDP\n"
" delay_loop 30\n"
" delay_before_retry 30\n"
" retry 3\n\n\n"
" # Configuration for Pool sample_pool_id_1\n"
" # Configuration for HealthMonitor sample_monitor_id_1\n"
" # Configuration for Member sample_member_id_1\n"
" real_server 10.0.0.99 82 {\n"
" weight 13\n"
" uthreshold 98\n"
" MISC_CHECK {\n"
" misc_path \"/var/lib/octavia/lvs/check/"
"udp_check.sh 10.0.0.99 82\"\n"
" misc_timeout 31\n"
" }\n"
" }\n\n"
" # Configuration for Member sample_member_id_2\n"
" real_server 10.0.0.98 82 {\n"
" weight 13\n"
" uthreshold 98\n"
" MISC_CHECK {\n"
" misc_path \"/var/lib/octavia/lvs/check/"
"udp_check.sh 10.0.0.98 82\"\n"
" misc_timeout 31\n"
" }\n"
" }\n\n"
"}\n\n")
rendered_obj = self.udp_jinja_cfg.render_loadbalancer_obj(
sample_configs_combined.sample_listener_tuple(
proto=constants.PROTOCOL_UDP,
monitor_proto=constants.HEALTH_MONITOR_UDP_CONNECT,
persistence=False,
connection_limit=98))
self.assertEqual(exp, rendered_obj)
def test_render_template_udp_with_health_monitor_ip_port(self):
exp = ("# Configuration for Loadbalancer sample_loadbalancer_id_1\n"
"# Configuration for Listener sample_listener_id_1\n\n"
"net_namespace amphora-haproxy\n\n"
"virtual_server 10.0.0.2 80 {\n"
" lb_algo rr\n"
" lb_kind NAT\n"
" protocol UDP\n"
" delay_loop 30\n"
" delay_before_retry 30\n"
" retry 3\n\n\n"
" # Configuration for Pool sample_pool_id_1\n"
" # Configuration for HealthMonitor sample_monitor_id_1\n"
" # Configuration for Member sample_member_id_1\n"
" real_server 10.0.0.99 82 {\n"
" weight 13\n"
" uthreshold 98\n"
" MISC_CHECK {\n"
" misc_path \"/var/lib/octavia/lvs/check/"
"udp_check.sh 192.168.1.1 9000\"\n"
" misc_timeout 31\n"
" }\n"
" }\n\n"
" # Configuration for Member sample_member_id_2\n"
" real_server 10.0.0.98 82 {\n"
" weight 13\n"
" uthreshold 98\n"
" MISC_CHECK {\n"
" misc_path \"/var/lib/octavia/lvs/check/"
"udp_check.sh 192.168.1.1 9000\"\n"
" misc_timeout 31\n"
" }\n"
" }\n\n"
"}\n\n")
rendered_obj = self.udp_jinja_cfg.render_loadbalancer_obj(
sample_configs_combined.sample_listener_tuple(
proto=constants.PROTOCOL_UDP,
monitor_ip_port=True,
monitor_proto=constants.HEALTH_MONITOR_UDP_CONNECT,
persistence=False,
connection_limit=98))
self.assertEqual(exp, rendered_obj)
def test_render_template_udp_no_other_resources(self):
exp = ("# Configuration for Loadbalancer sample_loadbalancer_id_1\n"
"# Configuration for Listener sample_listener_id_1\n\n"
"net_namespace amphora-haproxy\n\n\n")
rendered_obj = self.udp_jinja_cfg.render_loadbalancer_obj(
sample_configs_combined.sample_listener_tuple(
proto=constants.PROTOCOL_UDP, monitor=False,
persistence=False, alloc_default_pool=False))
self.assertEqual(exp, rendered_obj)
def test_render_template_udp_with_pool_no_member(self):
exp = ("# Configuration for Loadbalancer sample_loadbalancer_id_1\n"
"# Configuration for Listener sample_listener_id_1\n\n"
"net_namespace amphora-haproxy\n\n"
"virtual_server 10.0.0.2 80 {\n"
" lb_algo rr\n"
" lb_kind NAT\n"
" protocol UDP\n\n\n"
" # Configuration for Pool sample_pool_id_0\n"
"}\n\n")
rendered_obj = self.udp_jinja_cfg.render_loadbalancer_obj(
sample_configs_combined.sample_listener_tuple(
proto=constants.PROTOCOL_UDP, monitor=False,
persistence=False, alloc_default_pool=True,
sample_default_pool=0))
self.assertEqual(exp, rendered_obj)
def test_render_template_udp_with_disabled_pool(self):
exp = ("# Configuration for Loadbalancer sample_loadbalancer_id_1\n"
"# Configuration for Listener sample_listener_id_1\n\n"
"net_namespace amphora-haproxy\n\n"
"virtual_server 10.0.0.2 80 {\n"
" lb_algo rr\n"
" lb_kind NAT\n"
" protocol UDP\n\n\n"
" # Pool sample_pool_id_1 is disabled\n"
" # Configuration for Member sample_member_id_1\n"
" real_server 10.0.0.99 82 {\n"
" weight 13\n\n"
" }\n\n"
" # Configuration for Member sample_member_id_2\n"
" real_server 10.0.0.98 82 {\n"
" weight 13\n\n"
" }\n\n"
"}\n\n")
rendered_obj = self.udp_jinja_cfg.render_loadbalancer_obj(
sample_configs_combined.sample_listener_tuple(
proto=constants.PROTOCOL_UDP, monitor=False,
persistence=False, alloc_default_pool=True,
pool_enabled=False))
self.assertEqual(exp, rendered_obj)
def test_udp_transform_session_persistence(self):
persistence_src_ip = (
sample_configs_combined.sample_session_persistence_tuple(
persistence_type=constants.SESSION_PERSISTENCE_SOURCE_IP,
persistence_cookie=None,
persistence_timeout=33,
persistence_granularity='255.0.0.0'
))
exp = sample_configs_combined.UDP_SOURCE_IP_BODY
ret = self.udp_jinja_cfg._transform_session_persistence(
persistence_src_ip)
self.assertEqual(exp, ret)
def test_udp_transform_health_monitor(self):
in_hm = sample_configs_combined.sample_health_monitor_tuple(
proto=constants.HEALTH_MONITOR_UDP_CONNECT
)
ret = self.udp_jinja_cfg._transform_health_monitor(in_hm)
self.assertEqual(sample_configs_combined.RET_UDP_HEALTH_MONITOR, ret)
def test_udp_transform_member(self):
in_member = sample_configs_combined.sample_member_tuple(
'member_id_1', '192.0.2.10')
ret = self.udp_jinja_cfg._transform_member(in_member)
self.assertEqual(sample_configs_combined.RET_UDP_MEMBER, ret)
in_member = sample_configs_combined.sample_member_tuple(
'member_id_1',
'192.0.2.10',
monitor_ip_port=True)
ret = self.udp_jinja_cfg._transform_member(in_member)
self.assertEqual(
sample_configs_combined.RET_UDP_MEMBER_MONITOR_IP_PORT, ret)
def test_udp_transform_pool(self):
in_pool = sample_configs_combined.sample_pool_tuple(
proto=constants.PROTOCOL_UDP,
persistence_type=constants.SESSION_PERSISTENCE_SOURCE_IP,
persistence_timeout=33, persistence_granularity='255.0.0.0',
)
ret = self.udp_jinja_cfg._transform_pool(in_pool)
self.assertEqual(sample_configs_combined.RET_UDP_POOL, ret)
in_pool = sample_configs_combined.sample_pool_tuple(
proto=constants.PROTOCOL_UDP,
persistence_type=constants.SESSION_PERSISTENCE_SOURCE_IP,
persistence_timeout=33, persistence_granularity='255.0.0.0',
monitor=False)
sample_configs_combined.RET_UDP_POOL['health_monitor'] = ''
ret = self.udp_jinja_cfg._transform_pool(in_pool)
self.assertEqual(sample_configs_combined.RET_UDP_POOL, ret)
def test_udp_transform_listener(self):
in_listener = sample_configs_combined.sample_listener_tuple(
proto=constants.PROTOCOL_UDP,
persistence_type=constants.SESSION_PERSISTENCE_SOURCE_IP,
persistence_timeout=33,
persistence_granularity='255.0.0.0',
monitor_proto=constants.HEALTH_MONITOR_UDP_CONNECT,
connection_limit=98
)
ret = self.udp_jinja_cfg._transform_listener(in_listener)
self.assertEqual(sample_configs_combined.RET_UDP_LISTENER, ret)
in_listener = sample_configs_combined.sample_listener_tuple(
proto=constants.PROTOCOL_UDP,
persistence_type=constants.SESSION_PERSISTENCE_SOURCE_IP,
persistence_timeout=33,
persistence_granularity='255.0.0.0',
monitor_proto=constants.HEALTH_MONITOR_UDP_CONNECT,
connection_limit=-1)
ret = self.udp_jinja_cfg._transform_listener(in_listener)
sample_configs_combined.RET_UDP_LISTENER.pop('connection_limit')
self.assertEqual(sample_configs_combined.RET_UDP_LISTENER, ret)
def test_render_template_disabled_udp_listener(self):
exp = ("# Configuration for Loadbalancer sample_loadbalancer_id_1\n"
"# Listener sample_listener_id_1 is disabled\n\n"
"net_namespace amphora-haproxy\n\n")
rendered_obj = self.udp_jinja_cfg.render_loadbalancer_obj(
sample_configs_combined.sample_listener_tuple(
enabled=False,
proto=constants.PROTOCOL_UDP,
persistence_type=constants.SESSION_PERSISTENCE_SOURCE_IP,
persistence_timeout=33,
persistence_granularity='255.255.0.0',
monitor_proto=constants.HEALTH_MONITOR_UDP_CONNECT,
connection_limit=98))
self.assertEqual(exp, rendered_obj)