anchor.diff:  use NFS volume types as specified in examples/openshift/metrics/run-nfs.sh
   
   When running crunchy-scope, the following ports are available:
  +
    * crunchy-prometheus:9090 - the prometheus web user interface
    * crunchy-promgateway:9091 - the prometheus pushgateway REST API
    * crunchy-grafana:3000 - the grafana web user interface
  
positive.code:  * PROM_GATEWAY - the http URL of the prometheus pushgateway into which the metrics will be pushed.  defaults to http://crunchy-promgateway:9091
  
  === Example
  An example of using crunchy-collect is stored in examples/openshift/master-collect.json
  
  This example collects metrics for the pg-master database.  Run the
  example as follows:
  
negative.code: Metrics are stored in the crunchy-prometheus container.  crunchy-prometheus runs
  the prometheus time series database. The prometheus pushgateway is
  found within the crunchy-promgateway container, and
  the grafana web application is foud within the crunchy-grafana container.
  An example of starting the metrics containers
  is in examples/openshift/scope.json.
  
  To start the crunchy-scope container, run the following:
  ....
  cd $CCPROOT/examples/docker/metrics
  ./run.sh
  ....
  
  The crunchy-prometheus data in this example is stored in emptyDir volume types.
  