Let map keystone to default port

roles/keystone/templates/keystone.service

@@ -10,7 +10,7 @@ ExecStartPre=-/usr/bin/docker stop %n
 ExecStartPre=-/usr/bin/docker rm %n
 ExecStart=/usr/bin/docker run --name %n \
   --add-host=mariadb:{{ hostvars[groups['databases'][0]]['ansible_default_ipv4']['address'] }} \
-  -p 5001:5000 -p 35357:35357 \
+  -p 5000:5000 -p 35357:35357 \
   -v /srv/keystone/fernet-keys:/etc/keystone/fernet-keys \
   hpc/keystone