def _kill_ovsdb(self):
"""Kill ``ovsdb-server`` instance.
:returns: None
"""
if os.path.isfile(self._ovsdb_pidfile_path):
with open(self._ovsdb_pidfile_path, "r") as pidfile:
ovsdb_pid = pidfile.read().strip()
self._logger.info("Killing ovsdb with pid: %s", ovsdb_pid)
if ovsdb_pid:
tasks.terminate_task(ovsdb_pid, logger=self._logger)
# restore original content of ovs_var_tmp and ovs_etc_tmp; It is
# essential for OVS installed from binary packages.
if self._stamp:
for tmp_dir in ['ovs_var_tmp', 'ovs_etc_tmp']:
orig_dir = os.path.normpath(
settings.getValue('TOOLS')[tmp_dir])
if os.path.exists('{}.{}'.format(orig_dir, self._stamp)):
self._logger.info('Restoring backup of %s directory...',
tmp_dir)
tasks.run_task(['sudo', 'rm', '-rf', orig_dir],
self._logger)
tasks.run_task([
'sudo', 'mv', '{}.{}'.format(orig_dir, self._stamp),
orig_dir
], self._logger)
def kill(self, signal='-15', sleep=10):
"""Kill ``ovs-vswitchd`` and ``ovs-ovsdb`` instances if they are alive.
:returns: None
"""
if os.path.isfile(self._vswitchd_pidfile_path):
self._logger.info('Killing ovs-vswitchd...')
with open(self._vswitchd_pidfile_path, "r") as pidfile:
vswitchd_pid = pidfile.read().strip()
tasks.terminate_task(vswitchd_pid, logger=self._logger)
self._kill_ovsdb() # ovsdb must be killed after vswitchd
# just for case, that sudo envelope has not been terminated yet
tasks.Process.kill(self, signal, sleep)
def kill(self, signal='-15', sleep=10):
"""See IVswitch for general description
Kills ``vpp``
"""
# try to get VPP pid
output = self.run_vppctl(['show', 'version', 'verbose'])
match = re.search(r'Current PID:\s*([0-9]+)', output[0])
if match:
vpp_pid = match.group(1)
tasks.terminate_task(vpp_pid, logger=self._logger)
# in case, that pid was not detected or sudo envelope
# has not been terminated yet
tasks.Process.kill(self, signal, sleep)
def restart(self):
""" Restart ``ovs-vswitchd`` instance. ``ovsdb-server`` is not restarted.
:raises: pexpect.EOF, pexpect.TIMEOUT
"""
self._logger.info("Restarting vswitchd...")
if os.path.isfile(self._vswitchd_pidfile_path):
self._logger.info('Killing ovs-vswitchd...')
with open(self._vswitchd_pidfile_path, "r") as pidfile:
vswitchd_pid = pidfile.read().strip()
tasks.terminate_task(vswitchd_pid, logger=self._logger)
try:
tasks.Process.start(self)
self.relinquish()
except (pexpect.EOF, pexpect.TIMEOUT) as exc:
self._logger.error("Exception during VSwitch start.")
self._kill_ovsdb()
raise exc
self._logger.info("Vswitchd...Started.")