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test_container.py
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test_container.py
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#!/usr/bin/env python3
#
# Copyright (C) 2021 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
import glob
import json
from base_vyostest_shim import VyOSUnitTestSHIM
from vyos.configsession import ConfigSessionError
from vyos.util import cmd
from vyos.util import process_named_running
from vyos.util import read_file
base_path = ['container']
cont_image = 'busybox:stable' # busybox is included in vyos-build
prefix = '192.168.205.0/24'
net_name = 'NET01'
PROCESS_NAME = 'conmon'
PROCESS_PIDFILE = '/run/vyos-container-{0}.service.pid'
busybox_image_path = '/usr/share/vyos/busybox-stable.tar'
def cmd_to_json(command):
c = cmd(command + ' --format=json')
data = json.loads(c)[0]
return data
class TestContainer(VyOSUnitTestSHIM.TestCase):
@classmethod
def setUpClass(cls):
super(TestContainer, cls).setUpClass()
# Load image for smoketest provided in vyos-build
cmd(f'cat {busybox_image_path} | sudo podman load')
@classmethod
def tearDownClass(cls):
super(TestContainer, cls).tearDownClass()
# Cleanup podman image
cmd(f'sudo podman image rm -f {cont_image}')
def tearDown(self):
self.cli_delete(base_path)
self.cli_commit()
# Ensure no container process remains
self.assertIsNone(process_named_running(PROCESS_NAME))
# Ensure systemd units are removed
units = glob.glob('/run/systemd/system/vyos-container-*')
self.assertEqual(units, [])
def test_01_basic_container(self):
cont_name = 'c1'
self.cli_set(['interfaces', 'ethernet', 'eth0', 'address', '10.0.2.15/24'])
self.cli_set(['protocols', 'static', 'route', '0.0.0.0/0', 'next-hop', '10.0.2.2'])
self.cli_set(['system', 'name-server', '1.1.1.1'])
self.cli_set(['system', 'name-server', '8.8.8.8'])
self.cli_set(base_path + ['name', cont_name, 'image', cont_image])
self.cli_set(base_path + ['name', cont_name, 'allow-host-networks'])
# commit changes
self.cli_commit()
pid = 0
with open(PROCESS_PIDFILE.format(cont_name), 'r') as f:
pid = int(f.read())
# Check for running process
self.assertEqual(process_named_running(PROCESS_NAME), pid)
def test_02_container_network(self):
cont_name = 'c2'
cont_ip = '192.168.205.25'
self.cli_set(base_path + ['network', net_name, 'prefix', prefix])
self.cli_set(base_path + ['name', cont_name, 'image', cont_image])
self.cli_set(base_path + ['name', cont_name, 'network', net_name, 'address', cont_ip])
# commit changes
self.cli_commit()
n = cmd_to_json(f'sudo podman network inspect {net_name}')
json_subnet = n['subnets'][0]['subnet']
c = cmd_to_json(f'sudo podman container inspect {cont_name}')
json_ip = c['NetworkSettings']['Networks'][net_name]['IPAddress']
self.assertEqual(json_subnet, prefix)
self.assertEqual(json_ip, cont_ip)
if __name__ == '__main__':
unittest.main(verbosity=2)

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