anchor.diff:  deployment.
   
   ## <a id="cpi"></a>Cloud Provider Interface (CPI) ##
  -BOSH uses the Cloud Provider Interface to communicate with the cloud infrastructure.
  +A Cloud Provider Interface (CPI) is an API that BOSH uses to interact with an
  +Infrastructure as a Service (IaaS) provider to create and manage stemcells and
  +VMs.
  +A CPI abstracts the cloud infrastructure from the rest of BOSH.
   
   ## <a id="director"></a>Director ##
   The BOSH Director is the core orchestrating component in BOSH.
  
positive.code: The Agent receives job specifications from the Director and uses them to assign
  a role, or Job, to the VM.
  
  For example, to assign the the Job of running MySQL to a VM, the Director sends
  instructions to the Agent on the VM.
  These instructions include which packages to install and how to configure those
  packages.
  
negative.code: title: BOSH Components
  ---
  
  This topic describes the components of BOSH.
  <%= image_tag("/images/components.png") %>
  
  ## <a id="agent"></a>Agent ##
  