Merge "Kill all processes running in a namespace before deletion"
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commit
4f6b8bb3e5
@ -15,4 +15,8 @@
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ping: RegExpFilter, ping, root, ping, -w, \d+, -c, \d+, [0-9\.]+
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ping_alt: RegExpFilter, ping, root, ping, -c, \d+, -w, \d+, [0-9\.]+
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ping6: RegExpFilter, ping6, root, ping6, -w, \d+, -c, \d+, [0-9A-Fa-f:]+
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ping6_alt: RegExpFilter, ping6, root, ping6, -c, \d+, -w, \d+, [0-9A-Fa-f:]+
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ping6_alt: RegExpFilter, ping6, root, ping6, -c, \d+, -w, \d+, [0-9A-Fa-f:]+
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# "sleep" command, only for testing
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sleep: RegExpFilter, sleep, root, sleep, \d+
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kill_sleep: KillFilter, root, sleep, -9
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@ -932,6 +932,15 @@ def network_namespace_exists(namespace, try_is_ready=False, **kwargs):
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return False
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def list_namespace_pids(namespace):
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"""List namespace process PIDs
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:param namespace: (string) the name of the namespace
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:return: (tuple)
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"""
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return privileged.list_ns_pids(namespace)
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def ensure_device_is_ready(device_name, namespace=None):
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dev = IPDevice(device_name, namespace=namespace)
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try:
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@ -25,5 +25,6 @@ default = priv_context.PrivContext(
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capabilities=[caps.CAP_SYS_ADMIN,
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caps.CAP_NET_ADMIN,
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caps.CAP_DAC_OVERRIDE,
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caps.CAP_DAC_READ_SEARCH],
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caps.CAP_DAC_READ_SEARCH,
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caps.CAP_SYS_PTRACE],
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)
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@ -187,6 +187,12 @@ def open_namespace(namespace):
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pass
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@privileged.default.entrypoint
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def list_ns_pids(namespace):
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"""List namespace process PIDs"""
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return netns.ns_pids().get(namespace, [])
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def _translate_ip_device_exception(e, device=None, namespace=None):
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if e.code == errno.ENODEV:
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raise NetworkInterfaceNotFound(device=device, namespace=namespace)
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@ -585,6 +585,8 @@ class NamespaceFixture(fixtures.Fixture):
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def destroy(self):
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if self.ip_wrapper.netns.exists(self.name):
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for pid in ip_lib.list_namespace_pids(self.name):
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utils.kill_process(pid, signal.SIGKILL, run_as_root=True)
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self.ip_wrapper.netns.delete(self.name)
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@ -12,6 +12,9 @@
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# License for the specific language governing permissions and limitations
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# under the License.
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import functools
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import eventlet
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import netaddr
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from neutron_lib import constants as n_cons
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from oslo_utils import uuidutils
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@ -618,3 +621,35 @@ class GetLinkAttributesTestCase(functional_base.BaseSudoTestCase):
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'alias', 'allmulticast', 'link_kind']
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attr = self.device.link.attributes
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self.assertSetEqual(set(expected_attr), set(attr.keys()))
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class ListNamespacePids(functional_base.BaseSudoTestCase):
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def setUp(self):
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super(ListNamespacePids, self).setUp()
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self.namespace = self.useFixture(net_helpers.NamespaceFixture()).name
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@staticmethod
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def _run_sleep(namespace):
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ip_wrapper = ip_lib.IPWrapper(namespace=namespace)
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ip_wrapper.netns.execute(['sleep', '100'], check_exit_code=False)
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def _check_pids(self, num_pids, namespace=None):
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namespace = self.namespace if not namespace else namespace
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self.pids = priv_ip_lib.list_ns_pids(namespace)
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return len(self.pids) == num_pids
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def test_list_namespace_pids(self):
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eventlet.spawn_n(self._run_sleep, self.namespace)
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try:
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check_pids = functools.partial(self._check_pids, 1)
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common_utils.wait_until_true(check_pids, timeout=5)
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except common_utils.WaitTimeout:
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self.fail('Process no found in namespace %s' % self.namespace)
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def test_list_namespace_pids_nothing_running_inside(self):
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self.assertTrue(self._check_pids(0))
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def test_list_namespace_not_created(self):
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self.assertTrue(self._check_pids(0, namespace='othernamespace'))
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