def _get_socket(host, port, backlog):
info = socket.getaddrinfo(
host, port, socket.AF_UNSPEC, socket.SOCK_STREAM
)[0]
family = info[0]
bind_addr = info[-1]
sock = None
retry_until = time.time() + 30
while not sock and time.time() < retry_until:
try:
sock = eventlet.listen(bind_addr, backlog=backlog,
family=family)
if sslutils.is_enabled(CONF):
sock = sslutils.wrap(CONF, sock)
except socket.error as err:
if err.args[0] != errno.EADDRINUSE:
raise
if not sock:
raise RuntimeError(_(
"Could not bind to %(host)s:%(port)s "
"after trying for 30 seconds") %
{'host': host, 'port': port})
sock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
# sockets can hang around forever without keepalive
sock.setsockopt(socket.SOL_SOCKET, socket.SO_KEEPALIVE, 1)
# This option isn't available in the OS X version of eventlet
if hasattr(socket, 'TCP_KEEPIDLE'):
sock.setsockopt(socket.IPPROTO_TCP, socket.TCP_KEEPIDLE,
CONF.tcp_keepidle)
return sock
def _get_socket(self, host, port, backlog):
# TODO(dims): eventlet's green dns/socket module does not actually
# support IPv6 in getaddrinfo(). We need to get around this in the
# future or monitor upstream for a fix
info = socket.getaddrinfo(host, port, socket.AF_UNSPEC, socket.SOCK_STREAM)[0]
family = info[0]
bind_addr = info[-1]
sock = None
retry_until = time.time() + 30
while not sock and time.time() < retry_until:
try:
sock = eventlet.listen(bind_addr, backlog=backlog, family=family)
if sslutils.is_enabled(CONF):
sock = sslutils.wrap(CONF, sock)
except socket.error as err:
if err.args[0] != errno.EADDRINUSE:
raise
eventlet.sleep(0.1)
if not sock:
raise RuntimeError(
_("Could not bind to %(host)s:%(port)s " "after trying for 30 seconds") % {"host": host, "port": port}
)
sock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
# sockets can hang around forever without keepalive
sock.setsockopt(socket.SOL_SOCKET, socket.SO_KEEPALIVE, 1)
# This option isn't available in the OS X version of eventlet
if hasattr(socket, "TCP_KEEPIDLE"):
sock.setsockopt(socket.IPPROTO_TCP, socket.TCP_KEEPIDLE, CONF.tcp_keepidle)
return sock
def start(self):
"""Start serving a WSGI application.
:returns: None
"""
# The server socket object will be closed after server exits,
# but the underlying file descriptor will remain open, and will
# give bad file descriptor error. So duplicating the socket object,
# to keep file descriptor usable.
self.dup_socket = self._socket.dup()
self.dup_socket = self._set_socket_opts(self.dup_socket)
if self._use_ssl:
self.dup_socket = sslutils.wrap(self.conf, self.dup_socket)
wsgi_kwargs = {
'func': eventlet.wsgi.server,
'sock': self.dup_socket,
'site': self.app,
'protocol': self._protocol,
'custom_pool': self._pool,
'log': self._logger,
'log_format': self.conf.wsgi_log_format,
'debug': False,
'keepalive': self.conf.wsgi_keep_alive,
'socket_timeout': self.client_socket_timeout
}
if self._max_url_len:
wsgi_kwargs['url_length_limit'] = self._max_url_len
self._server = eventlet.spawn(**wsgi_kwargs)
def start(self):
"""Start serving a WSGI application.
:returns: None
"""
# The server socket object will be closed after server exits,
# but the underlying file descriptor will remain open, and will
# give bad file descriptor error. So duplicating the socket object,
# to keep file descriptor usable.
self.dup_socket = self.socket.dup()
if self._use_ssl:
self.dup_socket = sslutils.wrap(self.conf, self.dup_socket)
wsgi_kwargs = {
"func": eventlet.wsgi.server,
"sock": self.dup_socket,
"site": self.app,
"protocol": self._protocol,
"custom_pool": self._pool,
"log": self._logger,
"log_format": self.conf.wsgi_log_format,
"debug": False,
"keepalive": self.conf.wsgi_keep_alive,
"socket_timeout": self.client_socket_timeout,
}
if self._max_url_len:
wsgi_kwargs["url_length_limit"] = self._max_url_len
self._server = eventlet.spawn(**wsgi_kwargs)
def start(self):
"""Start serving a WSGI application.
:returns: None
"""
# The server socket object will be closed after server exits,
# but the underlying file descriptor will remain open, and will
# give bad file descriptor error. So duplicating the socket object,
# to keep file descriptor usable.
self.dup_socket = self._socket.dup()
self.dup_socket = self._set_socket_opts(self.dup_socket)
if self._use_ssl:
self.dup_socket = sslutils.wrap(self.conf, self.dup_socket)
wsgi_kwargs = {
'func': eventlet.wsgi.server,
'sock': self.dup_socket,
'site': self.app,
'protocol': self._protocol,
'custom_pool': self._pool,
'log': self._logger,
'log_format': self.conf.wsgi_log_format,
'debug': False,
'keepalive': self.conf.wsgi_keep_alive,
'socket_timeout': self.client_socket_timeout
}
if self._max_url_len:
wsgi_kwargs['url_length_limit'] = self._max_url_len
self._server = eventlet.spawn(**wsgi_kwargs)
def _test_wrap(self, exists_mock, wrap_socket_mock, **kwargs):
exists_mock.return_value = True
sock = mock.Mock()
self.conf.set_default("cert_file", self.cert_file_name,
group=sslutils.config_section)
self.conf.set_default("key_file", self.key_file_name,
group=sslutils.config_section)
ssl_kwargs = {'server_side': True,
'certfile': self.conf.ssl.cert_file,
'keyfile': self.conf.ssl.key_file,
'cert_reqs': ssl.CERT_NONE,
}
if kwargs:
ssl_kwargs.update(**kwargs)
sslutils.wrap(self.conf, sock)
wrap_socket_mock.assert_called_once_with(sock, **ssl_kwargs)
def _start(self, host, port):
wsgi_sock = utils.bind_tcp(host, port, CONF.backlog, CONF.tcp_keepidle)
if sslutils.is_enabled(CONF):
wsgi_sock = sslutils.wrap(CONF, wsgi_sock)
self._wsgi_socks.append(wsgi_sock)
self.tg.add_thread(self._wsgi_handle, wsgi_sock)
def _start(self, host, port):
wsgi_sock = utils.bind_tcp(
host, port, CONF.backlog, CONF.tcp_keepidle)
if self._use_ssl:
wsgi_sock = sslutils.wrap(CONF, wsgi_sock)
self._wsgi_socks.append(wsgi_sock)
self.tg.add_thread(self._wsgi_handle, wsgi_sock)
def start(self):
super(WSGIService, self).start()
self._wsgi_sock = utils.bind_tcp(self._service_config.api_host,
self._service_config.api_port,
CONF.backlog, CONF.tcp_keepidle)
if sslutils.is_enabled(CONF):
self._wsgi_sock = sslutils.wrap(CONF, self._wsgi_sock)
self.tg.add_thread(self._wsgi_handle)
def start(self):
super(WorkerService, self).start()
# When api worker is stopped it kills the eventlet wsgi server which
# internally closes the wsgi server socket object. This server socket
# object becomes not usable which leads to "Bad file descriptor"
# errors on service restart.
# Duplicate a socket object to keep a file descriptor usable.
dup_sock = self._service._socket.dup()
if CONF.use_ssl and not self._disable_ssl:
dup_sock = sslutils.wrap(CONF, dup_sock)
self._server = self._service.pool.spawn(self._service._run,
self._application, dup_sock)
def start(self):
super(WorkerService, self).start()
# When api worker is stopped it kills the eventlet wsgi server which
# internally closes the wsgi server socket object. This server socket
# object becomes not usable which leads to "Bad file descriptor"
# errors on service restart.
# Duplicate a socket object to keep a file descriptor usable.
dup_sock = self._service._socket.dup()
if CONF.use_ssl and not self._disable_ssl:
dup_sock = sslutils.wrap(CONF, dup_sock)
self._server = self._service.pool.spawn(self._service._run,
self._application,
dup_sock)
def start(self):
super(WSGIService, self).start()
self._wsgi_sock = utils.bind_tcp(
self._service_config.api_host,
self._service_config.api_port,
CONF.backlog,
CONF.tcp_keepidle)
if sslutils.is_enabled(CONF):
self._wsgi_sock = sslutils.wrap(CONF, self._wsgi_sock)
self.tg.add_thread(self._wsgi_handle)
def _wsgi_get_socket(self):
# TODO(dims): eventlet's green dns/socket module does not actually
# support IPv6 in getaddrinfo(). We need to get around this in the
# future or monitor upstream for a fix
info = socket.getaddrinfo(self._service_config.api_host,
self._service_config.api_port,
socket.AF_UNSPEC, socket.SOCK_STREAM)[0]
family = info[0]
bind_addr = info[-1]
sock = None
retry_until = time.time() + 30
while not sock and time.time() < retry_until:
try:
# TODO(kiall): Backlog should be a service specific setting,
# rather than a global
sock = eventlet.listen(bind_addr,
backlog=cfg.CONF.backlog,
family=family)
if sslutils.is_enabled(CONF):
sock = sslutils.wrap(CONF, sock)
except socket.error as err:
if err.args[0] != errno.EADDRINUSE:
raise
eventlet.sleep(0.1)
if not sock:
raise RuntimeError(
_("Could not bind to %(host)s:%(port)s "
"after trying for 30 seconds") % {
'host': self._service_config.api_host,
'port': self._service_config.api_port
})
sock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
# sockets can hang around forever without keepalive
sock.setsockopt(socket.SOL_SOCKET, socket.SO_KEEPALIVE, 1)
# This option isn't available in the OS X version of eventlet
if hasattr(socket, 'TCP_KEEPIDLE'):
sock.setsockopt(socket.IPPROTO_TCP, socket.TCP_KEEPIDLE,
CONF.tcp_keepidle)
return sock
def start(self, application):
"""Run a WSGI server with the given application.
:param application: The application to run in the WSGI server
"""
def kill_children(*args):
"""Kills the entire process group."""
LOG.error(_LE('SIGTERM received'))
signal.signal(signal.SIGTERM, signal.SIG_IGN)
self.running = False
os.killpg(0, signal.SIGTERM)
def hup(*args):
"""Shuts down the server(s).
Shuts down the server(s), but allows running requests to complete
"""
LOG.error(_LE('SIGHUP received'))
signal.signal(signal.SIGHUP, signal.SIG_IGN)
os.killpg(0, signal.SIGHUP)
signal.signal(signal.SIGHUP, hup)
self.application = application
self.sock = eventlet.listen((CONF.host, CONF.port), backlog=500)
if sslutils.is_enabled(CONF):
LOG.info(_LI("Using HTTPS for port %s"), CONF.port)
self.sock = sslutils.wrap(CONF, self.sock)
if CONF.api_workers == 0:
# Useful for profiling, test, debug etc.
self.pool = eventlet.GreenPool(size=self.threads)
self.pool.spawn_n(self._single_run, application, self.sock)
return
LOG.debug("Starting %d workers", CONF.api_workers)
signal.signal(signal.SIGTERM, kill_children)
signal.signal(signal.SIGHUP, hup)
while len(self.children) < CONF.api_workers:
self.run_child()
