anchor.diff:  The pgadmin4 project is found at the following location:
   https://www.pgadmin.org/
   
  -pgadmin4 provides a web user interface to postgresql databases.  A
  +pgadmin4 provides a web user interface to PostgreSQL databases.  A
   sample screenshot is below:
   
   image:pgadmin4-screenshot.png["pgadmin screenshot",align="center",scaledwidth="80%"]
  
positive.code:    master.  The *master* user has super user privileges.
   * SLEEP_TIME - time in seconds to sleep when polling the master
   * PG_DATABASE - the database to use when checking the readiness of the master
   * PG_MASTER_PORT - the postgres port to use when checking the master
   * PG_MASTER_SERVICE - the name of the master database container
   * PG_SLAVE_SERVICE - the name of the slave database container, this is
     used to know which container to trigger the failover on
  
negative.code: here: https://kubernetes.io/docs/admin/authorization/abac/#a-quick-note-on-service-accounts
  
  In Kube 1.6, an equivalent RBAC policy is also possibly required depending
  on your authorization/authentication configuration.  See this
  link for details on the new RBAC policy mechanism:
  https://kubernetes.io/docs/admin/authorization/rbac/
  
  