Source code for glance.cmd

# Copyright 2013 OpenStack Foundation
# All Rights Reserved.
#    Licensed under the Apache License, Version 2.0 (the "License"); you may
#    not use this file except in compliance with the License. You may obtain
#    a copy of the License at
#    Unless required by applicable law or agreed to in writing, software
#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
#    License for the specific language governing permissions and limitations
#    under the License.

import os
import sys

import oslo_utils.strutils as strutils

from glance import i18n

    import dns  # NOQA
except ImportError:
    dnspython_installed = False
    dnspython_installed = True

[docs]def fix_greendns_ipv6(): if dnspython_installed: # All of this is because if dnspython is present in your environment # then eventlet monkeypatches socket.getaddrinfo() with an # implementation which doesn't work for IPv6. What we're checking here # is that the magic environment variable was set when the import # happened. nogreendns = 'EVENTLET_NO_GREENDNS' flag = os.environ.get(nogreendns, '') if 'eventlet' in sys.modules and not strutils.bool_from_string(flag): msg = i18n._("It appears that the eventlet module has been " "imported prior to setting %s='yes'. It is currently " "necessary to disable eventlet.greendns " "if using ipv6 since eventlet.greendns currently " "breaks with ipv6 addresses. Please ensure that " "eventlet is not imported prior to this being set.") raise ImportError(msg % nogreendns) os.environ[nogreendns] = 'yes'
i18n.enable_lazy() fix_greendns_ipv6()

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