anchor.diff:  This will start up 3 containers and services:
   
    * Prometheus (http://crunchy-prometheus:9090)
  + * Prometheus Promgateway (crunchy-promgateway:9091)
    * Grafana (http://crunchy-grafana:3000)
   
   If you want your metrics and dashboards to persist to NFS, run
  
positive.code: 
  == Description
  
  PostgreSQL metrics are collected by the crunchy-collect container, which executes both the postgres_exporter and node_exporter. Written in Go, these are both metrics exporters that work with Prometheus to provide PostgreSQL server metrics in addition to hardware and OS metrics. The crunchy-collect container gathers [x number of] different metrics from the crunchy-postgres PostgreSQL database container.
  
  The collector is similar to the Prometheus Pushgateway, in that it allows exporting of statistics from batch jobs. It can also be used to export static metrics, such as what role a machine has. These SQL metrics would be collected by crunchy-prometheus which hosts Prometheus. Grafana runs from crunchy-grafana, which displays the collected PostgreSQL metrics from the crunchy-prometheus container as a data source and uses the metrics to build dashboards. The Grafana template used is defined by default using a JSON template and is indexed by Grafana as an accessible dashboard.
  
  Prometheus is a multi-dimensional time series data model with an elastic query language. It is used in collaboration with Grafana in this metrics suite. Overall, it’s reliable, manageable, and operationally simple for efficiently storing and analyzing data for large-scale environments.
  
  Grafana is open source, adaptable and efficient data conceptualization software. This technology is capable of converting raw data to beautifully represented graphs, allowing you to easily monitor your database with a glance. In addition, it has a strong query and transformation language that allows for instantaneous and complex combinations of metrics, queries, correlations, and mathematical graphing.
  
  To start collection of metrics on a PostgreSQL database, you add the crunchy-collect container
  into the pod that holds the crunchy-postgres container.
  
  === Structure
  
  
negative.code: When running crunchy-metrics, 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
  
  === Examples
  