title: Terraform use case to create multiple almost identical copies of infrastructure
body: <p>I have TF templates whose purpose is to create multiple copies of the same cloud infrastructure. For example you have multiple business units inside a big organization, and you want to build out the same basic networks. Or you want an easy way for a developer to spin up the stack that he's working on. The only difference between "tf apply" invokations is the variable BUSINESS_UNIT, for example, which is passed in as an environment variable.</p>
  
  <p>Is anyone else using a system like this, and if so, how do you manage the state files ? </p>