def cleanup_config_file(uuid, state_path):
"""Delete config file created when metadata proxy was spawned."""
# Delete config file if it exists
cfg_path = os.path.join(
HaproxyConfigurator.get_config_path(state_path),
"%s.conf" % uuid)
linux_utils.delete_if_exists(cfg_path, run_as_root=True)
def disable(self, sig='9', get_stop_command=None):
pid = self.pid
if self.active:
if get_stop_command:
cmd = get_stop_command(self.get_pid_file_name())
ip_wrapper = ip_lib.IPWrapper(namespace=self.namespace)
ip_wrapper.netns.execute(cmd,
addl_env=self.cmd_addl_env,
run_as_root=self.run_as_root,
privsep_exec=True)
else:
cmd = self.get_kill_cmd(sig, pid)
utils.execute(cmd,
run_as_root=self.run_as_root,
privsep_exec=True)
# In the case of shutting down, remove the pid file
if sig == '9':
utils.delete_if_exists(self.get_pid_file_name(),
run_as_root=self.run_as_root)
elif pid:
LOG.debug(
'%(service)s process for %(uuid)s pid %(pid)d is stale, '
'ignoring signal %(signal)s', {
'service': self.service,
'uuid': self.uuid,
'pid': pid,
'signal': sig
})
else:
LOG.debug('No %(service)s process started for %(uuid)s', {
'service': self.service,
'uuid': self.uuid
})
def destroy_monitored_metadata_proxy(cls, monitor, uuid, conf, ns_name):
monitor.unregister(uuid, METADATA_SERVICE_NAME)
pm = cls._get_metadata_proxy_process_manager(uuid,
conf,
ns_name=ns_name)
pm.disable(sig=str(int(signal.SIGTERM)))
try:
common_utils.wait_until_true(lambda: not pm.active,
timeout=SIGTERM_TIMEOUT)
except common_utils.WaitTimeout:
LOG.warning(
'Metadata process %s did not finish after SIGTERM '
'signal in %s seconds, sending SIGKILL signal', pm.pid,
SIGTERM_TIMEOUT)
pm.disable(sig=str(int(signal.SIGKILL)))
# Delete metadata proxy config and PID files.
HaproxyConfigurator.cleanup_config_file(uuid, cfg.CONF.state_path)
linux_utils.delete_if_exists(pm.get_pid_file_name(), run_as_root=True)
cls.monitors.pop(uuid, None)