title: Zookeeper: Promoting changes to different development environments
body: <p>I'm reviewing Zookeeper and would like to initially use it as a configuration service. </p>
  
  <p>The one problem that comes to mind is... promoting changes across development environments.</p>
  
  <p>i.e. DEV to QA to STAGING and finally Production.</p>
  
  <p>In the past i would have used liquibase with some host specific configuration and pushed changes with patches/builds... but since Zookeeper doesn't have a relational database that won't work. </p>
  
  <p>Are there any best practices, links or guidelines on how one is supposed to support a SDLC?
  What am i missing?</p>