Install memcached with swift+keystone midleware.
diff --git a/stack.sh b/stack.sh
index 78851b9..5e22be9 100755
--- a/stack.sh
+++ b/stack.sh
@@ -704,6 +704,11 @@
# configured keystone it will checkout the directory.
if [[ "$ENABLED_SERVICES" =~ "key" ]]; then
swift_auth_server=keystone
+
+ # We install the memcache server as this is will be used by the
+ # middleware to cache the tokens auths for a long this is needed.
+ apt_get install memcached
+
# We need a special version of bin/swift which understand the
# OpenStack api 2.0, we download it until this is getting
# integrated in swift.