def test_release(self):
require_user('root')
nsid = self.alloc_nsname()
nsp = NSPopen(nsid, ['true'], flags=os.O_CREAT, stdout=subprocess.PIPE)
nsp.communicate()
nsp.wait()
nsp.release()
try:
print(nsp.returncode)
except RuntimeError:
pass
def test_release(self):
require_user('root')
nsid = self.alloc_nsname()
nsp = NSPopen(nsid, ['true'], flags=os.O_CREAT, stdout=subprocess.PIPE)
nsp.communicate()
nsp.wait()
nsp.release()
try:
print(nsp.returncode)
except RuntimeError:
pass
def managed_nspopen(*args, **kwds):
proc = NSPopen(*args, **kwds)
try:
yield proc
finally:
if proc.poll() is None:
# send SIGKILL to the process and wait for it to die if it's still
# running
proc.kill()
proc.communicate()
# release proxy process resourecs
proc.release()
def managed_nspopen(*args, **kwds):
proc = NSPopen(*args, **kwds)
try:
yield proc
finally:
if proc.poll() is None:
# send SIGKILL to the process and wait for it to die if it's still
# running
proc.kill()
# If it's not dead after 2 seconds we throw an error
proc.communicate(timeout=2)
# release proxy process resourecs
proc.release()
def test_api_object(self):
require_user('root')
nsid = self.alloc_nsname()
nsp = NSPopen(nsid, ['true'], flags=os.O_CREAT, stdout=subprocess.PIPE)
smp = subprocess.Popen(['true'], stdout=subprocess.PIPE)
nsp.communicate()
smp.communicate()
api_nspopen = set(dir(nsp))
api_popen = set(dir(smp))
minimal = set(('communicate', 'kill', 'wait'))
assert minimal & (api_nspopen & api_popen) == minimal
smp.wait()
nsp.wait()
assert nsp.returncode == smp.returncode == 0
nsp.release()
def test_api_object(self):
require_user('root')
nsid = self.alloc_nsname()
nsp = NSPopen(nsid, ['true'], flags=os.O_CREAT, stdout=subprocess.PIPE)
smp = subprocess.Popen(['true'], stdout=subprocess.PIPE)
nsp.communicate()
smp.communicate()
api_nspopen = set(dir(nsp))
api_popen = set(dir(smp))
minimal = set(('communicate', 'kill', 'wait'))
assert minimal & (api_nspopen & api_popen) == minimal
smp.wait()
nsp.wait()
assert nsp.returncode == smp.returncode == 0
nsp.release()
def test_basic(self):
require_user('root')
nsid = self.alloc_nsname()
# create NS and run a child
nsp = NSPopen(nsid,
['ip', '-o', 'link'],
stdout=subprocess.PIPE,
flags=os.O_CREAT)
ret = nsp.communicate()[0].decode('utf-8')
host_links = [x.get_attr('IFLA_IFNAME') for x in self.ip.get_links()]
netns_links = [x.split(':')[1].split('@')[0].strip()
for x in ret.split('\n') if len(x)]
assert nsp.wait() == nsp.returncode == 0
assert set(host_links) & set(netns_links) == set(netns_links)
assert set(netns_links) < set(host_links)
assert not set(netns_links) > set(host_links)
nsp.release()
def test_basic(self):
require_user('root')
nsid = self.alloc_nsname()
# create NS and run a child
nsp = NSPopen(nsid,
['ip', '-o', 'link'],
stdout=subprocess.PIPE,
flags=os.O_CREAT)
ret = nsp.communicate()[0].decode('utf-8')
host_links = [x.get_attr('IFLA_IFNAME') for x in self.ip.get_links()]
netns_links = [x.split(':')[1].split('@')[0].strip()
for x in ret.split('\n') if len(x)]
assert nsp.wait() == nsp.returncode == 0
assert set(host_links) & set(netns_links) == set(netns_links)
assert set(netns_links) < set(host_links)
assert not set(netns_links) > set(host_links)
nsp.release()
'qdisc',
'add',
'dev',
veth,
'root',
'netem',
'delay',
f'{args.delay}ms',
f'{int(args.delay)/2}ms',
'loss',
f'{args.loss}%',
'25%',
],
stdout=subprocess.PIPE,
)
nsp.communicate()
nsp.wait()
nsp.release()
if args.verbose:
print(f'netem: add {nsname}/{veth}, '
f'{args.delay}, {args.loss}')
# create the tap
#
# for some reason we should create the tap inteface first,
# and only then bring it up, thus two commit() calls
(ndb.interfaces.create(kind='tuntap', ifname=tap_name,
mode='tap').commit().set('state',
'up').commit())
if args.verbose:
print(f'link: add main/{tap_name}')
