anchor.diff:  ----
   $ oc set env rc r1 --containers='c1' ENV-
   ----
  -
  -== List Environment Variables
  -
  -To list environment variables in pods or pod templates:
  -
  -----
  -$ oc set env <object-selection> --list [<common-options>]
  -----
  -
  -This example lists all environment variables for pod `p1`:
  -----
  -$ oc set env pod/p1 --list
  -----
  
positive.code: ----
  $ oc set env -f rc.json STORAGE=/opt -o yaml > rc.yaml
  ----
  === Automatically Added Environment Variables
  
  .Automatically Added Environment Variables
  
negative.code: container and run `oc set env` to list all available variables.
  ====
  
  [[unset-environment-variables]]
  == Unset Environment Variables
  
  To unset environment variables in the pod templates:
  