Add "keystone_authtoken" section in barbican.conf

Keystone auth configuration has been removed from barbican-api-paste.ini,
but not added to barbican.conf. This patch add these configurations.

Change-Id: I058a49ac60c3f1d72acd0f46379d9d05d1668a08

etc/barbican/barbican.conf

@@ -407,3 +407,146 @@ subca_cert_key_directory=/etc/barbican/snakeoil-cas
 # Wether the application is behind a proxy or not. This determines if
 # the middleware should parse the headers or not. (boolean value)
 #enable_proxy_headers_parsing = false
+
+
+[keystone_authtoken]
+
+#
+# From keystonemiddleware.auth_token
+#
+
+# Complete "public" Identity API endpoint. This endpoint should not be an
+# "admin" endpoint, as it should be accessible by all end users. Unauthenticated
+# clients are redirected to this endpoint to authenticate. Although this
+# endpoint should  ideally be unversioned, client support in the wild varies.
+# If you're using a versioned v2 endpoint here, then this  should *not* be the
+# same endpoint the service user utilizes  for validating tokens, because normal
+# end users may not be  able to reach that endpoint. (string value)
+#auth_uri = <None>
+
+# API version of the admin Identity API endpoint. (string value)
+#auth_version = <None>
+
+# Do not handle authorization requests within the middleware, but delegate the
+# authorization decision to downstream WSGI components. (boolean value)
+#delay_auth_decision = false
+
+# Request timeout value for communicating with Identity API server. (integer
+# value)
+#http_connect_timeout = <None>
+
+# How many times are we trying to reconnect when communicating with Identity API
+# Server. (integer value)
+#http_request_max_retries = 3
+
+# Request environment key where the Swift cache object is stored. When
+# auth_token middleware is deployed with a Swift cache, use this option to have
+# the middleware share a caching backend with swift. Otherwise, use the
+# ``memcached_servers`` option instead. (string value)
+#cache = <None>
+
+# Required if identity server requires client certificate (string value)
+#certfile = <None>
+
+# Required if identity server requires client certificate (string value)
+#keyfile = <None>
+
+# A PEM encoded Certificate Authority to use when verifying HTTPs connections.
+# Defaults to system CAs. (string value)
+#cafile = <None>
+
+# Verify HTTPS connections. (boolean value)
+#insecure = false
+
+# The region in which the identity server can be found. (string value)
+#region_name = <None>
+
+# Directory used to cache files related to PKI tokens. (string value)
+#signing_dir = <None>
+
+# Optionally specify a list of memcached server(s) to use for caching. If left
+# undefined, tokens will instead be cached in-process. (list value)
+# Deprecated group/name - [keystone_authtoken]/memcache_servers
+#memcached_servers = <None>
+
+# In order to prevent excessive effort spent validating tokens, the middleware
+# caches previously-seen tokens for a configurable duration (in seconds). Set to
+# -1 to disable caching completely. (integer value)
+#token_cache_time = 300
+
+# Determines the frequency at which the list of revoked tokens is retrieved from
+# the Identity service (in seconds). A high number of revocation events combined
+# with a low cache duration may significantly reduce performance. Only valid for
+# PKI tokens. (integer value)
+#revocation_cache_time = 10
+
+# (Optional) If defined, indicate whether token data should be authenticated or
+# authenticated and encrypted. If MAC, token data is authenticated (with HMAC)
+# in the cache. If ENCRYPT, token data is encrypted and authenticated in the
+# cache. If the value is not one of these options or empty, auth_token will
+# raise an exception on initialization. (string value)
+# Allowed values: None, MAC, ENCRYPT
+#memcache_security_strategy = None
+
+# (Optional, mandatory if memcache_security_strategy is defined) This string is
+# used for key derivation. (string value)
+#memcache_secret_key = <None>
+
+# (Optional) Number of seconds memcached server is considered dead before it is
+# tried again. (integer value)
+#memcache_pool_dead_retry = 300
+
+# (Optional) Maximum total number of open connections to every memcached server.
+# (integer value)
+#memcache_pool_maxsize = 10
+
+# (Optional) Socket timeout in seconds for communicating with a memcached
+# server. (integer value)
+#memcache_pool_socket_timeout = 3
+
+# (Optional) Number of seconds a connection to memcached is held unused in the
+# pool before it is closed. (integer value)
+#memcache_pool_unused_timeout = 60
+
+# (Optional) Number of seconds that an operation will wait to get a memcached
+# client connection from the pool. (integer value)
+#memcache_pool_conn_get_timeout = 10
+
+# (Optional) Use the advanced (eventlet safe) memcached client pool. The
+# advanced pool will only work under python 2.x. (boolean value)
+#memcache_use_advanced_pool = false
+
+# (Optional) Indicate whether to set the X-Service-Catalog header. If False,
+# middleware will not ask for service catalog on token validation and will not
+# set the X-Service-Catalog header. (boolean value)
+#include_service_catalog = true
+
+# Used to control the use and type of token binding. Can be set to: "disabled"
+# to not check token binding. "permissive" (default) to validate binding
+# information if the bind type is of a form known to the server and ignore it if
+# not. "strict" like "permissive" but if the bind type is unknown the token will
+# be rejected. "required" any form of token binding is needed to be allowed.
+# Finally the name of a binding method that must be present in tokens. (string
+# value)
+#enforce_token_bind = permissive
+
+# If true, the revocation list will be checked for cached tokens. This requires
+# that PKI tokens are configured on the identity server. (boolean value)
+#check_revocations_for_cached = false
+
+# Hash algorithms to use for hashing PKI tokens. This may be a single algorithm
+# or multiple. The algorithms are those supported by Python standard
+# hashlib.new(). The hashes will be tried in the order given, so put the
+# preferred one first for performance. The result of the first hash will be
+# stored in the cache. This will typically be set to multiple values only while
+# migrating from a less secure algorithm to a more secure one. Once all the old
+# tokens are expired this option should be set to a single value for better
+# performance. (list value)
+#hash_algorithms = md5
+
+# Authentication type to load (string value)
+# Deprecated group/name - [keystone_authtoken]/auth_plugin
+#auth_type = <None>
+
+# Config Section from which to load plugin specific options (string value)
+#auth_section = <None>