def init():
from oslo.config import cfg
CONF = cfg.CONF
if 'remote_debug' not in CONF:
return
if not(CONF.remote_debug.host and CONF.remote_debug.port):
return
from mvpn.openstack.common.gettextutils import _
from mvpn.openstack.common import log as logging
LOG = logging.getLogger(__name__)
LOG.debug(_('Listening on %(host)s:%(port)s for debug connection'),
{'host': CONF.remote_debug.host,
'port': CONF.remote_debug.port})
from pydev import pydevd
pydevd.settrace(host=CONF.remote_debug.host,
port=CONF.remote_debug.port,
stdoutToServer=True,
stderrToServer=True)
LOG.warn(_('WARNING: Using the remote debug option changes how '
'Nova uses the eventlet library to support async IO. This '
'could result in failures that do not occur under normal '
'operation. Use at your own risk.'))
def __init__(
self,
name,
app,
host="0.0.0.0",
port=9000,
pool_size=None,
protocol=eventlet.wsgi.HttpProtocol,
backlog=128,
use_ssl=False,
max_url_len=None,
):
"""Initialize, but do not start, a WSGI server.
:param name: Pretty name for logging.
:param app: The WSGI application to serve.
:param host: IP address to serve the application.
:param port: Port number to server the application.
:param pool_size: Maximum number of eventlets to spawn concurrently.
:param backlog: Maximum number of queued connections.
:param max_url_len: Maximum length of permitted URLs.
:returns: None
:raises: nova.exception.InvalidInput
"""
# Allow operators to customize http requests max header line size.
eventlet.wsgi.MAX_HEADER_LINE = CONF.max_header_line
self.name = name
self.app = app
self._server = None
self._protocol = protocol
self._pool = eventlet.GreenPool(pool_size or self.default_pool_size)
self._logger = logging.getLogger("mvpn.%s.wsgi.server" % self.name)
self._wsgi_logger = logging.WritableLogger(self._logger)
self._use_ssl = use_ssl
self._max_url_len = max_url_len
if backlog < 1:
raise exception.InvalidInput(reason="The backlog must be more than 1")
bind_addr = (host, port)
# 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
try:
info = socket.getaddrinfo(bind_addr[0], bind_addr[1], socket.AF_UNSPEC, socket.SOCK_STREAM)[0]
family = info[0]
bind_addr = info[-1]
except Exception:
family = socket.AF_INET
try:
self._socket = eventlet.listen(bind_addr, family, backlog=backlog)
except EnvironmentError:
LOG.error(_("Could not bind to %(host)s:%(port)s"), {"host": host, "port": port})
raise
(self.host, self.port) = self._socket.getsockname()[0:2]
LOG.info(_("%(name)s listening on %(host)s:%(port)s") % self.__dict__)
def __init__(self, message=None, **kwargs):
self.kwargs = kwargs
if 'code' not in self.kwargs:
try:
self.kwargs['code'] = self.code
except AttributeError:
pass
if not message:
try:
message = self.msg_fmt % kwargs
except Exception:
exc_info = sys.exc_info()
# kwargs doesn't match a variable in the message
# log the issue and the kwargs
LOG.exception(_('Exception in string format operation'))
for name, value in kwargs.iteritems():
LOG.error("%s: %s" % (name, value))
if CONF.fatal_exception_format_errors:
raise exc_info[0], exc_info[1], exc_info[2]
else:
# at least get the core message out if something happened
message = self.msg_fmt
super(MvpnException, self).__init__(message)
def deprecated(self, msg, *args, **kwargs):
stdmsg = _("Deprecated: %s") % msg
if CONF.fatal_deprecations:
self.critical(stdmsg, *args, **kwargs)
raise DeprecatedConfig(msg=stdmsg)
else:
self.warn(stdmsg, *args, **kwargs)
def __init__(self, ext_mgr=None, init_only=None):
if ext_mgr is None:
if self.ExtensionManager:
ext_mgr = self.ExtensionManager()
else:
raise Exception(_("Must specify an ExtensionManager class"))
mapper = ProjectMapper()
self.resources = {}
self._setup_routes(mapper, ext_mgr, init_only)
self._setup_ext_routes(mapper, ext_mgr, init_only)
self._setup_extensions(ext_mgr)
super(APIRouter, self).__init__(mapper)
def wait(self):
"""Block, until the server has stopped.
Waits on the server's eventlet to finish, then returns.
:returns: None
"""
try:
if self._server is not None:
self._server.wait()
except greenlet.GreenletExit:
LOG.info(_("WSGI server has stopped."))
def stop(self):
"""Stop this server.
This is not a very nice action, as currently the method by which a
server is stopped is by killing its eventlet.
:returns: None
"""
LOG.info(_("Stopping WSGI server."))
if self._server is not None:
# Resize pool to stop new requests from being processed
self._pool.resize(0)
self._server.kill()
def _find_facility_from_conf():
facility_names = logging.handlers.SysLogHandler.facility_names
facility = getattr(logging.handlers.SysLogHandler,
CONF.syslog_log_facility,
None)
if facility is None and CONF.syslog_log_facility in facility_names:
facility = facility_names.get(CONF.syslog_log_facility)
if facility is None:
valid_facilities = facility_names.keys()
consts = ['LOG_AUTH', 'LOG_AUTHPRIV', 'LOG_CRON', 'LOG_DAEMON',
'LOG_FTP', 'LOG_KERN', 'LOG_LPR', 'LOG_MAIL', 'LOG_NEWS',
'LOG_AUTH', 'LOG_SYSLOG', 'LOG_USER', 'LOG_UUCP',
'LOG_LOCAL0', 'LOG_LOCAL1', 'LOG_LOCAL2', 'LOG_LOCAL3',
'LOG_LOCAL4', 'LOG_LOCAL5', 'LOG_LOCAL6', 'LOG_LOCAL7']
valid_facilities.extend(consts)
raise TypeError(_('syslog facility must be one of: %s') %
', '.join("'%s'" % fac
for fac in valid_facilities))
return facility
def __call__(self, environ, start_response):
raise NotImplementedError(_("You must implement __call__"))
def start(self):
"""Start serving a WSGI application.
:returns: None
"""
if self._use_ssl:
try:
ca_file = CONF.ssl_ca_file
cert_file = CONF.ssl_cert_file
key_file = CONF.ssl_key_file
if cert_file and not os.path.exists(cert_file):
raise RuntimeError(_("Unable to find cert_file : %s") % cert_file)
if ca_file and not os.path.exists(ca_file):
raise RuntimeError(_("Unable to find ca_file : %s") % ca_file)
if key_file and not os.path.exists(key_file):
raise RuntimeError(_("Unable to find key_file : %s") % key_file)
if self._use_ssl and (not cert_file or not key_file):
raise RuntimeError(
_(
"When running server in SSL mode, you must "
"specify both a cert_file and key_file "
"option value in your configuration file"
)
)
ssl_kwargs = {
"server_side": True,
"certfile": cert_file,
"keyfile": key_file,
"cert_reqs": ssl.CERT_NONE,
}
if CONF.ssl_ca_file:
ssl_kwargs["ca_certs"] = ca_file
ssl_kwargs["cert_reqs"] = ssl.CERT_REQUIRED
self._socket = eventlet.wrap_ssl(self._socket, **ssl_kwargs)
self._socket.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
# sockets can hang around forever without keepalive
self._socket.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"):
self._socket.setsockopt(socket.IPPROTO_TCP, socket.TCP_KEEPIDLE, CONF.tcp_keepidle)
except Exception:
with excutils.save_and_reraise_exception():
LOG.error(_("Failed to start %(name)s on %(host)s" ":%(port)s with SSL support") % self.__dict__)
wsgi_kwargs = {
"func": eventlet.wsgi.server,
"sock": self._socket,
"site": self.app,
"protocol": self._protocol,
"custom_pool": self._pool,
"log": self._wsgi_logger,
"log_format": CONF.wsgi_log_format,
"debug": False,
}
if self._max_url_len:
wsgi_kwargs["url_length_limit"] = self._max_url_len
self._server = eventlet.spawn(**wsgi_kwargs)
def __init__(self):
LOG.audit(_('Initializing extension manager.'))
