title: dashboard cannot login with admin account
body: <p>After I installed the dashboard on 2 Ubuntu16 nodes, I can login the web page dashboard.
  All the instructions is followed from </p>
  
  <p><a href="https://docs.openstack.org/project-install-guide/ocata/ubuntu-services.html" rel="nofollow noreferrer">https://docs.openstack.org/project-install-guide/ocata/ubuntu-services.html</a> 
  nova-manage ---version===15.0.1
  keystone is already the newest version (2:11.0.0-0ubuntu1.1~cloud0)</p>
  
  <p>Checking on apache error log is like this:
  [wsgi:error] [pid 21177:tid 140685076526848] Login failed for user "admin", remote address x.x.x.x
  [wsgi:error] [pid 21177:tid 140685076526848] Login failed for user "admin", remote address x.x.x.x</p>
  
  <p>There were plenty of this error after freshing web page.
  I didn't change admin account password, when I check openstack status, like openstack user list, etc. It will show the directly result.
  In my case, I believe the keystone service is working, for dashborad is granted all host visit. </p>
  
  <p>ps -ef|grep keystone
  root     16785 16296  0 16:44 pts/0    00:00:00 grep --color=auto keystone
  keystone 21178 21172  0 09:32 ?        00:00:02 (wsgi:keystone-pu -k start
  keystone 21179 21172  0 09:32 ?        00:00:02 (wsgi:keystone-pu -k start
  keystone 21180 21172  0 09:32 ?        00:00:02 (wsgi:keystone-pu -k start
  keystone 21181 21172  0 09:32 ?        00:00:02 (wsgi:keystone-pu -k start
  keystone 21182 21172  0 09:32 ?        00:00:02 (wsgi:keystone-pu -k start
  keystone 21183 21172  0 09:32 ?        00:00:02 (wsgi:keystone-ad -k start
  keystone 21184 21172  0 09:32 ?        00:00:02 (wsgi:keystone-ad -k start
  keystone 21185 21172  0 09:32 ?        00:00:02 (wsgi:keystone-ad -k start
  keystone 21186 21172  0 09:32 ?        00:00:02 (wsgi:keystone-ad -k start
  keystone 21187 21172  0 09:32 ?        00:00:02 (wsgi:keystone-ad -k start</p>
  
  <p>So I got 2 concerns:
  1. how to fix it :)
  2 I found after sync with keystone local database, I found it can't find keystone service, which I can't restart it both /etc/init.d/keystone (cannot find keystone service name) and systemctl restart keystone(no keytone).</p>
  
  <p>Any help will be appreciated.</p>