Is there a way module to tell if you're logged into Dev, Stage, or Production Our deployment model has 


Dev
Stage
Production
Failover (mysql replication and load balancer)


Our problem is that the server has failed over, we want to alert content editors that they're on the failover, or moreso, we'd like to ensure they're editing in the production areas and not on a development box. 

Is there a way to distinguish the environment, after a user logs in? Is there a module by which color codes the admin bar depending on the server's host name?
Try Environment Indicator, it does exactly what you want.


  This module will help you to keep sane while working on your different
  environments by adding a configurable color bar to each one of your
  environments.


It also integrates nicely with Admin Menu.