anchor.diff:  
   == Deploying InfluxDB
   
  -Metrics are stores in *InfluxDB* for querying. This cluster is scalable using a
  +Metrics are stored in *InfluxDB* for querying. This cluster is scalable using a
   link:../architecture/core_concepts/deployments.html#replication-controllers[replication
   controller], so you can link:../dev_guide/deployments.html#scaling[scale] the
   *InfluxDB* cluster up and down as required.
  
positive.code: == Deploying Heapster
  
  *Heapster* reads all nodes and pods from the master, then connects to each
  kubelet to retrieve pod metrics. *Heapster* will run under a
  link:service_accounts.html[service account] with the *cluster-reader*
  link:manage_authorization_policy.html#viewing-cluster-policy[cluster role] to
  be able to retrieve these metrics.
  
negative.code:     system:serviceaccount:default:heapster
  ----
  
  The following is the definition of the *Heapster* replication controller:
  
  ====
  [source,yaml]
  