1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
|
#!/usr/bin/env python3
#
# Copyright (C) 2021-2024 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 ipaddress import ip_interface
from vyos.configsession import ConfigSessionError
from vyos.utils.process import cmd
from vyos.utils.process import process_named_running
base_path = ['container']
cont_image = 'busybox:stable' # busybox is included in vyos-build
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
try:
cmd(f'cat {busybox_image_path} | sudo podman load')
except:
cls.skipTest(cls, reason='busybox image not available')
# ensure we can also run this test on a live system - so lets clean
# out the current configuration :)
cls.cli_delete(cls, base_path)
@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_basic(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_cpu_limit(self):
cont_name = 'c2'
self.cli_set(base_path + ['name', cont_name, 'allow-host-networks'])
self.cli_set(base_path + ['name', cont_name, 'image', cont_image])
self.cli_set(base_path + ['name', cont_name, 'cpu-quota', '1.25'])
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_ipv4_network(self):
prefix = '192.0.2.0/24'
base_name = 'ipv4'
net_name = 'NET01'
self.cli_set(base_path + ['network', net_name, 'prefix', prefix])
for ii in range(1, 6):
name = f'{base_name}-{ii}'
self.cli_set(base_path + ['name', name, 'image', cont_image])
self.cli_set(base_path + ['name', name, 'network', net_name, 'address', str(ip_interface(prefix).ip + ii)])
# verify() - first IP address of a prefix can not be used by a container
with self.assertRaises(ConfigSessionError):
self.cli_commit()
tmp = f'{base_name}-1'
self.cli_delete(base_path + ['name', tmp])
self.cli_commit()
n = cmd_to_json(f'sudo podman network inspect {net_name}')
self.assertEqual(n['subnets'][0]['subnet'], prefix)
# skipt first container, it was never created
for ii in range(2, 6):
name = f'{base_name}-{ii}'
c = cmd_to_json(f'sudo podman container inspect {name}')
self.assertEqual(c['NetworkSettings']['Networks'][net_name]['Gateway'] , str(ip_interface(prefix).ip + 1))
self.assertEqual(c['NetworkSettings']['Networks'][net_name]['IPAddress'], str(ip_interface(prefix).ip + ii))
def test_ipv6_network(self):
prefix = '2001:db8::/64'
base_name = 'ipv6'
net_name = 'NET02'
self.cli_set(base_path + ['network', net_name, 'prefix', prefix])
for ii in range(1, 6):
name = f'{base_name}-{ii}'
self.cli_set(base_path + ['name', name, 'image', cont_image])
self.cli_set(base_path + ['name', name, 'network', net_name, 'address', str(ip_interface(prefix).ip + ii)])
# verify() - first IP address of a prefix can not be used by a container
with self.assertRaises(ConfigSessionError):
self.cli_commit()
tmp = f'{base_name}-1'
self.cli_delete(base_path + ['name', tmp])
self.cli_commit()
n = cmd_to_json(f'sudo podman network inspect {net_name}')
self.assertEqual(n['subnets'][0]['subnet'], prefix)
# skipt first container, it was never created
for ii in range(2, 6):
name = f'{base_name}-{ii}'
c = cmd_to_json(f'sudo podman container inspect {name}')
self.assertEqual(c['NetworkSettings']['Networks'][net_name]['IPv6Gateway'] , str(ip_interface(prefix).ip + 1))
self.assertEqual(c['NetworkSettings']['Networks'][net_name]['GlobalIPv6Address'], str(ip_interface(prefix).ip + ii))
def test_dual_stack_network(self):
prefix4 = '192.0.2.0/24'
prefix6 = '2001:db8::/64'
base_name = 'dual-stack'
net_name = 'net-4-6'
self.cli_set(base_path + ['network', net_name, 'prefix', prefix4])
self.cli_set(base_path + ['network', net_name, 'prefix', prefix6])
for ii in range(1, 6):
name = f'{base_name}-{ii}'
self.cli_set(base_path + ['name', name, 'image', cont_image])
self.cli_set(base_path + ['name', name, 'network', net_name, 'address', str(ip_interface(prefix4).ip + ii)])
self.cli_set(base_path + ['name', name, 'network', net_name, 'address', str(ip_interface(prefix6).ip + ii)])
# verify() - first IP address of a prefix can not be used by a container
with self.assertRaises(ConfigSessionError):
self.cli_commit()
tmp = f'{base_name}-1'
self.cli_delete(base_path + ['name', tmp])
self.cli_commit()
n = cmd_to_json(f'sudo podman network inspect {net_name}')
self.assertEqual(n['subnets'][0]['subnet'], prefix4)
self.assertEqual(n['subnets'][1]['subnet'], prefix6)
# skipt first container, it was never created
for ii in range(2, 6):
name = f'{base_name}-{ii}'
c = cmd_to_json(f'sudo podman container inspect {name}')
self.assertEqual(c['NetworkSettings']['Networks'][net_name]['IPv6Gateway'] , str(ip_interface(prefix6).ip + 1))
self.assertEqual(c['NetworkSettings']['Networks'][net_name]['GlobalIPv6Address'], str(ip_interface(prefix6).ip + ii))
self.assertEqual(c['NetworkSettings']['Networks'][net_name]['Gateway'] , str(ip_interface(prefix4).ip + 1))
self.assertEqual(c['NetworkSettings']['Networks'][net_name]['IPAddress'] , str(ip_interface(prefix4).ip + ii))
def test_uid_gid(self):
cont_name = 'uid-test'
gid = '100'
uid = '1001'
self.cli_set(base_path + ['name', cont_name, 'allow-host-networks'])
self.cli_set(base_path + ['name', cont_name, 'image', cont_image])
self.cli_set(base_path + ['name', cont_name, 'gid', gid])
# verify() - GID can only be set if UID is set
with self.assertRaises(ConfigSessionError):
self.cli_commit()
self.cli_set(base_path + ['name', cont_name, 'uid', uid])
self.cli_commit()
# verify
tmp = cmd(f'sudo podman exec -it {cont_name} id -u')
self.assertEqual(tmp, uid)
tmp = cmd(f'sudo podman exec -it {cont_name} id -g')
self.assertEqual(tmp, gid)
if __name__ == '__main__':
unittest.main(verbosity=2)
|
