Remove unused openstack.common.eventlet_backdoor

eventlet_backdoor was included in the original copy from Ironic and isn't
used anymore.

Change-Id: I392fba9688c8a1722bb5226ee8050315f3551fde

etc/tuskar/tuskar.conf.sample

@@ -76,14 +76,6 @@
 #sqlite_synchronous=true
 
 
-#
-# Options defined in tuskar.openstack.common.eventlet_backdoor
-#
-
-# port for eventlet backdoor to listen (integer value)
-#backdoor_port=<None>
-
-
 #
 # Options defined in tuskar.openstack.common.lockutils
 #

openstack-common.conf

@@ -4,7 +4,6 @@ module=config.generator
 module=context
 module=db
 module=db.sqlalchemy
-module=eventlet_backdoor
 module=excutils
 module=fileutils
 module=gettextutils

tuskar/openstack/common/eventlet_backdoor.py

@@ -1,89 +0,0 @@
-# vim: tabstop=4 shiftwidth=4 softtabstop=4
-
-# Copyright (c) 2012 OpenStack Foundation.
-# Administrator of the National Aeronautics and Space Administration.
-# 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
-#
-#         http://www.apache.org/licenses/LICENSE-2.0
-#
-#    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.
-
-from __future__ import print_function
-
-import gc
-import pprint
-import sys
-import traceback
-
-import eventlet
-import eventlet.backdoor
-import greenlet
-from oslo.config import cfg
-
-eventlet_backdoor_opts = [
-    cfg.IntOpt('backdoor_port',
-               default=None,
-               help='port for eventlet backdoor to listen')
-]
-
-CONF = cfg.CONF
-CONF.register_opts(eventlet_backdoor_opts)
-
-
-def _dont_use_this():
-    print("Don't use this, just disconnect instead")
-
-
-def _find_objects(t):
-    return filter(lambda o: isinstance(o, t), gc.get_objects())
-
-
-def _print_greenthreads():
-    for i, gt in enumerate(_find_objects(greenlet.greenlet)):
-        print(i, gt)
-        traceback.print_stack(gt.gr_frame)
-        print()
-
-
-def _print_nativethreads():
-    for threadId, stack in sys._current_frames().items():
-        print(threadId)
-        traceback.print_stack(stack)
-        print()
-
-
-def initialize_if_enabled():
-    backdoor_locals = {
-        'exit': _dont_use_this,      # So we don't exit the entire process
-        'quit': _dont_use_this,      # So we don't exit the entire process
-        'fo': _find_objects,
-        'pgt': _print_greenthreads,
-        'pnt': _print_nativethreads,
-    }
-
-    if CONF.backdoor_port is None:
-        return None
-
-    # NOTE(johannes): The standard sys.displayhook will print the value of
-    # the last expression and set it to __builtin__._, which overwrites
-    # the __builtin__._ that gettext sets. Let's switch to using pprint
-    # since it won't interact poorly with gettext, and it's easier to
-    # read the output too.
-    def displayhook(val):
-        if val is not None:
-            pprint.pprint(val)
-    sys.displayhook = displayhook
-
-    sock = eventlet.listen(('localhost', CONF.backdoor_port))
-    port = sock.getsockname()[1]
-    eventlet.spawn_n(eventlet.backdoor.backdoor_server, sock,
-                     locals=backdoor_locals)
-    return port