Remove deprecated [memcache] options

These options have had no effect and were formally deprecated during
Yoga cycle[1].

[1] 9a8686aee0

Related-Bug: #1941020
Change-Id: I9ac00109bd278bc4813a45358aeda848ab7318de

keystone/conf/__init__.py

@@ -38,7 +38,6 @@ from keystone.conf import identity
 from keystone.conf import identity_mapping
 from keystone.conf import jwt_tokens
 from keystone.conf import ldap
-from keystone.conf import memcache
 from keystone.conf import oauth1
 from keystone.conf import oauth2
 from keystone.conf import policy
@@ -77,7 +76,6 @@ conf_modules = [
     identity_mapping,
     jwt_tokens,
     ldap,
-    memcache,
     oauth1,
     oauth2,
     policy,

keystone/conf/memcache.py

@@ -1,105 +0,0 @@
-# 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 oslo_config import cfg
-from oslo_log import versionutils
-
-from keystone.conf import utils
-
-
-dead_retry = cfg.IntOpt(
-    'dead_retry',
-    default=5 * 60,
-    deprecated_for_removal=True,
-    deprecated_reason='This option has no effect. '
-                      'Configure ``keystone.conf [cache] '
-                      'memcache_dead_retry`` option to set the '
-                      'dead_retry of memcached instead. ',
-    deprecated_since='Y',
-    help=utils.fmt("""
-Number of seconds memcached server is considered dead before it is tried again.
-This is used by the key value store system.
-"""))
-
-socket_timeout = cfg.IntOpt(
-    'socket_timeout',
-    default=3,
-    deprecated_for_removal=True,
-    deprecated_reason='This option has no effect. '
-                      'Configure ``keystone.conf [cache] '
-                      'memcache_socket_timeout`` option to set the '
-                      'socket_timeout of memcached instead. ',
-    deprecated_since=versionutils.deprecated.TRAIN,
-    help=utils.fmt("""
-Timeout in seconds for every call to a server. This is used by the key value
-store system.
-"""))
-
-pool_maxsize = cfg.IntOpt(
-    'pool_maxsize',
-    default=10,
-    deprecated_for_removal=True,
-    deprecated_reason='This option has no effect. '
-                      'Configure ``keystone.conf [cache] '
-                      'memcache_pool_maxsize`` option to set the '
-                      'pool_maxsize of memcached instead. ',
-    deprecated_since='Y',
-    help=utils.fmt("""
-Max total number of open connections to every memcached server. This is used by
-the key value store system.
-"""))
-
-pool_unused_timeout = cfg.IntOpt(
-    'pool_unused_timeout',
-    default=60,
-    deprecated_for_removal=True,
-    deprecated_reason='This option has no effect. '
-                      'Configure ``keystone.conf [cache] '
-                      'memcache_pool_unused_timeout`` option to set the '
-                      'pool_unused_timeout of memcached instead. ',
-    deprecated_since='Y',
-    help=utils.fmt("""
-Number of seconds a connection to memcached is held unused in the pool before
-it is closed. This is used by the key value store system.
-"""))
-
-pool_connection_get_timeout = cfg.IntOpt(
-    'pool_connection_get_timeout',
-    default=10,
-    deprecated_for_removal=True,
-    deprecated_reason='This option has no effect. '
-                      'Configure ``keystone.conf [cache] '
-                      'memcache_pool_connection_get_timeout`` option to set '
-                      'the connection_get_timeout of memcached instead. ',
-    deprecated_since='Y',
-    help=utils.fmt("""
-Number of seconds that an operation will wait to get a memcache client
-connection. This is used by the key value store system.
-"""))
-
-
-GROUP_NAME = __name__.split('.')[-1]
-ALL_OPTS = [
-    dead_retry,
-    socket_timeout,
-    pool_maxsize,
-    pool_unused_timeout,
-    pool_connection_get_timeout,
-]
-
-
-def register_opts(conf):
-    conf.register_opts(ALL_OPTS, group=GROUP_NAME)
-
-
-def list_opts():
-    return {GROUP_NAME: ALL_OPTS}

releasenotes/notes/bug-1941020-cleanup-541a2d372a1cf4cd.yaml

@@ -0,0 +1,11 @@
+---
+upgrade:
+  - |
+    The following deprecated options in the ``[memcache]`` section have been
+    removed.
+
+    - ``dead_retry``
+    - ``pool_maxsize``
+    - ``pool_unused_timeout``
+    - ``pool_connection_get_timeout``
+