anchor.diff:  . Remove all backup files that are no longer needed:
   +
   ----
  -$ rm < /var/lib/pgsql/data/<database-backup-file>
  +$ rm /var/lib/pgsql/data/<database-backup-file>
   ----
   
   [[migrating-database-applications-postgresql-supported-variables]]
  
positive.code: . Create a v3 *mysql-persistent* pod from template:
  +
  ----
  $ oc new-app mysql-persistent -p
  MYSQL_USER=<your_V2_mysql_username> -p
  MYSQL_PASSWORD=<your_v2_mysql_password> -p MYSQL_DATABASE=<your_v2_database_name>
  ----
  
  . Check to see if the pod is ready to use:
  
negative.code: +
  ----
  $ mkdir mongodump
  $ rhc scp -a <v2 appname> download mongodump \
    app-root/repo/mydbdump/<dbname>/dbname.tar.gz
  ----
  
  . Start a MongoDB pod in v3. Because the latest image (3.2.6) does not include
  