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import pwd
import grp
import json
import unittest
from unit.applications.lang.go import TestApplicationGo
from unit.feature.isolation import TestFeatureIsolation
class TestGoIsolation(TestApplicationGo):
prerequisites = {'modules': ['go'], 'features': ['isolation']}
isolation = TestFeatureIsolation()
@classmethod
def setUpClass(cls, complete_check=True):
unit = super().setUpClass(complete_check=False)
TestFeatureIsolation().check(cls.available, unit.testdir)
return unit if not complete_check else unit.complete()
def isolation_key(self, key):
return key in self.available['features']['isolation'].keys()
def conf_isolation(self, isolation):
self.assertIn(
'success',
self.conf(isolation, 'applications/ns_inspect/isolation'),
'configure isolation',
)
def test_isolation_values(self):
self.load('ns_inspect')
obj = self.isolation.parsejson(self.get()['body'])
for ns, ns_value in self.available['features']['isolation'].items():
if ns.upper() in obj['NS']:
self.assertEqual(
obj['NS'][ns.upper()], ns_value, '%s match' % ns
)
def test_isolation_user(self):
if not self.isolation_key('unprivileged_userns_clone'):
print('unprivileged clone is not available')
raise unittest.SkipTest()
self.load('ns_inspect')
user_id = pwd.getpwnam('nobody').pw_uid
try:
group_id = grp.getgrnam('nogroup').gr_gid
except:
group_id = grp.getgrnam('nobody').gr_gid
obj = self.isolation.parsejson(self.get()['body'])
self.assertTrue(obj['UID'] != 0, 'uid not zero')
self.assertTrue(obj['GID'] != 0, 'gid not zero')
if self.is_su:
self.assertEqual(obj['UID'], user_id, 'uid match')
self.assertEqual(obj['GID'], group_id, 'gid match')
else:
self.assertEqual(obj['UID'], self.uid, 'uid match')
self.assertEqual(obj['GID'], self.gid, 'gid match')
self.conf_isolation({"namespaces": {"credential": True}})
obj = self.isolation.parsejson(self.get()['body'])
# default uid and gid maps current user to nobody
self.assertEqual(obj['UID'], user_id, 'uid nobody')
self.assertEqual(obj['GID'], group_id, 'gid nobody')
self.conf_isolation(
{
"namespaces": {"credential": True},
"uidmap": [
{"container": user_id, "host": self.uid, "size": 1}
],
"gidmap": [
{"container": group_id, "host": self.gid, "size": 1}
],
}
)
obj = self.isolation.parsejson(self.get()['body'])
self.assertEqual(obj['UID'], user_id, 'uid match')
self.assertEqual(obj['GID'], group_id, 'gid match')
def test_isolation_mnt(self):
if not self.isolation_key('mnt'):
print('mnt namespace is not supported')
raise unittest.SkipTest()
if not self.isolation_key('unprivileged_userns_clone'):
print('unprivileged clone is not available')
raise unittest.SkipTest()
self.load('ns_inspect')
self.conf_isolation(
{"namespaces": {"mount": True, "credential": True}}
)
obj = self.isolation.parsejson(self.get()['body'])
# all but user and mnt
allns = list(self.available['features']['isolation'].keys())
allns.remove('user')
allns.remove('mnt')
for ns in allns:
if ns.upper() in obj['NS']:
self.assertEqual(
obj['NS'][ns.upper()],
self.available['features']['isolation'][ns],
'%s match' % ns,
)
self.assertNotEqual(
obj['NS']['MNT'], self.isolation.getns('mnt'), 'mnt set'
)
self.assertNotEqual(
obj['NS']['USER'], self.isolation.getns('user'), 'user set'
)
def test_isolation_pid(self):
if not self.isolation_key('pid'):
print('pid namespace is not supported')
raise unittest.SkipTest()
if not self.isolation_key('unprivileged_userns_clone'):
print('unprivileged clone is not available')
raise unittest.SkipTest()
self.load('ns_inspect')
self.conf_isolation({"namespaces": {"pid": True, "credential": True}})
obj = self.isolation.parsejson(self.get()['body'])
self.assertEqual(obj['PID'], 1, 'pid of container is 1')
def test_isolation_namespace_false(self):
self.load('ns_inspect')
allns = list(self.available['features']['isolation'].keys())
remove_list = ['unprivileged_userns_clone', 'ipc', 'cgroup']
allns = [ns for ns in allns if ns not in remove_list]
namespaces = {}
for ns in allns:
if ns == 'user':
namespaces['credential'] = False
elif ns == 'mnt':
namespaces['mount'] = False
elif ns == 'net':
namespaces['network'] = False
elif ns == 'uts':
namespaces['uname'] = False
else:
namespaces[ns] = False
self.conf_isolation({"namespaces": namespaces})
obj = self.isolation.parsejson(self.get()['body'])
for ns in allns:
if ns.upper() in obj['NS']:
self.assertEqual(
obj['NS'][ns.upper()],
self.available['features']['isolation'][ns],
'%s match' % ns,
)
if __name__ == '__main__':
TestGoIsolation.main()
|
