Add zulip@localhost to memcached password database.

Signed-off-by: Anders Kaseorg <anders@zulip.com>

Author: andersk

docker-compose.yml

@@ -19,6 +19,7 @@ services:
       - |
         echo 'mech_list: plain' > "$$SASL_CONF_PATH"
         echo "zulip@$$HOSTNAME:$$MEMCACHED_PASSWORD" > "$$MEMCACHED_SASL_PWDB"
+        echo "zulip@localhost:$$MEMCACHED_PASSWORD" >> "$$MEMCACHED_SASL_PWDB"
         exec memcached -S
     environment:
       SASL_CONF_PATH: '/home/memcache/memcached.conf'