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test_ha_virtual_server.py
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test_ha_virtual_server.py
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#!/usr/bin/env python3
#
# Copyright (C) 2021-2022 VyOS maintainers and contributors
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License version 2 or later as
# published by the Free Software Foundation.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
import unittest
from base_vyostest_shim import VyOSUnitTestSHIM
from vyos.configsession import ConfigSessionError
from vyos.ifconfig.vrrp import VRRP
from vyos.util import cmd
from vyos.util import process_named_running
from vyos.util import read_file
from vyos.template import inc_ip
PROCESS_NAME = 'keepalived'
KEEPALIVED_CONF = VRRP.location['config']
base_path = ['high-availability']
vrrp_interface = 'eth1'
class TestHAVirtualServer(VyOSUnitTestSHIM.TestCase):
def tearDown(self):
# Check for running process
self.assertTrue(process_named_running(PROCESS_NAME))
self.cli_delete(['interfaces', 'ethernet', vrrp_interface, 'address'])
self.cli_delete(base_path)
self.cli_commit()
# Process must be terminated after deleting the config
self.assertFalse(process_named_running(PROCESS_NAME))
def test_01_ha_virtual_server(self):
algo = 'least-connection'
delay = '10'
method = 'nat'
persistence_timeout = '600'
vip = '203.0.113.111'
vport = '2222'
rservers = ['192.0.2.21', '192.0.2.22', '192.0.2.23']
rport = '22'
proto = 'tcp'
connection_timeout = '30'
vserver_base = base_path + ['virtual-server']
self.cli_set(vserver_base + [vip, 'algorithm', algo])
self.cli_set(vserver_base + [vip, 'delay-loop', delay])
self.cli_set(vserver_base + [vip, 'forward-method', method])
self.cli_set(vserver_base + [vip, 'persistence-timeout', persistence_timeout])
self.cli_set(vserver_base + [vip, 'port', vport])
self.cli_set(vserver_base + [vip, 'protocol', proto])
for rs in rservers:
self.cli_set(vserver_base + [vip, 'real-server', rs, 'connection-timeout', connection_timeout])
self.cli_set(vserver_base + [vip, 'real-server', rs, 'port', rport])
# commit changes
self.cli_commit()
config = read_file(KEEPALIVED_CONF)
self.assertIn(f'delay_loop {delay}', config)
self.assertIn(f'lb_algo lc', config)
self.assertIn(f'lb_kind {method.upper()}', config)
self.assertIn(f'persistence_timeout {persistence_timeout}', config)
self.assertIn(f'protocol {proto.upper()}', config)
for rs in rservers:
self.assertIn(f'real_server {rs} {rport}', config)
self.assertIn(f'{proto.upper()}_CHECK', config)
self.assertIn(f'connect_timeout {connection_timeout}', config)
def test_02_ha_virtual_server_and_vrrp(self):
algo = 'least-connection'
delay = '15'
method = 'nat'
persistence_timeout = '300'
vip = '203.0.113.222'
vport = '22322'
rservers = ['192.0.2.11', '192.0.2.12']
rport = '222'
proto = 'tcp'
connection_timeout = '23'
group = 'VyOS'
vrid = '99'
vrrp_base = base_path + ['vrrp', 'group']
vserver_base = base_path + ['virtual-server']
self.cli_set(['interfaces', 'ethernet', vrrp_interface, 'address', '203.0.113.10/24'])
# VRRP config
self.cli_set(vrrp_base + [group, 'description', group])
self.cli_set(vrrp_base + [group, 'interface', vrrp_interface])
self.cli_set(vrrp_base + [group, 'address', vip + '/24'])
self.cli_set(vrrp_base + [group, 'vrid', vrid])
# Virtual-server config
self.cli_set(vserver_base + [vip, 'algorithm', algo])
self.cli_set(vserver_base + [vip, 'delay-loop', delay])
self.cli_set(vserver_base + [vip, 'forward-method', method])
self.cli_set(vserver_base + [vip, 'persistence-timeout', persistence_timeout])
self.cli_set(vserver_base + [vip, 'port', vport])
self.cli_set(vserver_base + [vip, 'protocol', proto])
for rs in rservers:
self.cli_set(vserver_base + [vip, 'real-server', rs, 'connection-timeout', connection_timeout])
self.cli_set(vserver_base + [vip, 'real-server', rs, 'port', rport])
# commit changes
self.cli_commit()
config = read_file(KEEPALIVED_CONF)
# Keepalived vrrp
self.assertIn(f'# {group}', config)
self.assertIn(f'interface {vrrp_interface}', config)
self.assertIn(f'virtual_router_id {vrid}', config)
self.assertIn(f'priority 100', config) # default value
self.assertIn(f'advert_int 1', config) # default value
self.assertIn(f'preempt_delay 0', config) # default value
# Keepalived virtual-server
self.assertIn(f'delay_loop {delay}', config)
self.assertIn(f'lb_algo lc', config)
self.assertIn(f'lb_kind {method.upper()}', config)
self.assertIn(f'persistence_timeout {persistence_timeout}', config)
self.assertIn(f'protocol {proto.upper()}', config)
for rs in rservers:
self.assertIn(f'real_server {rs} {rport}', config)
self.assertIn(f'{proto.upper()}_CHECK', config)
self.assertIn(f'connect_timeout {connection_timeout}', config)
if __name__ == '__main__':
unittest.main(verbosity=2)

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