def __init__(self, name, app, host='0.0.0.0', port=0, 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: wormhole.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_size = pool_size or self.default_pool_size
self._pool = eventlet.GreenPool(self.pool_size)
self._logger = logging.getLogger("wormhole.%s.wsgi.server" % self.name)
self._wsgi_logger = logging.WritableLogger(self._logger)
self._use_ssl = use_ssl
self._max_url_len = max_url_len
self.client_socket_timeout = CONF.client_socket_timeout or None
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"),
{'name': self.name, 'host': self.host, 'port': self.port})
from wormhole import exception
from wormhole import wsgi
from wormhole.tasks import addtask
from wormhole.common import utils
from wormhole.common import units
from oslo.config import cfg
from wormhole.common import log
from wormhole.i18n import _
import functools
import uuid
import os
CONF = cfg.CONF
LOG = log.getLogger(__name__)
volume_opts = [
cfg.StrOpt('volume_dd_blocksize',
default='1M',
help='The default block size used when copying volume'),
]
CONF.register_opts(volume_opts)
CONF.import_opt('container_volume_link_dir', 'wormhole.container')
def volume_link_path(volume_id):
return os.path.sep.join([CONF.get('container_volume_link_dir'), volume_id])
class VolumeController(wsgi.Application):
from wormhole.common import timeutils
from wormhole.common import log as logging
from oslo.config import cfg
CONF = cfg.CONF
utils_opt = [
cfg.BoolOpt('fake_execute',
default=False,
help='If passed, use fake network devices and addresses'),
]
CONF.register_opts(utils_opt)
LOG = logging.getLogger(__name__)
class UndoManager(object):
"""Provides a mechanism to facilitate rolling back a series of actions
when an exception is raised.
"""
def __init__(self):
self.undo_stack = []
def undo_with(self, undo_func):
self.undo_stack.append(undo_func)
def _rollback(self):
for undo_func in reversed(self.undo_stack):
undo_func()
