anchor.diff:  
   To use a secret, a pod needs to reference the secret. A secret can be used with
   a pod in three ways:
  +
   - to populate environment variables for containers.
   - as files in a volume mounted on one or more of its containers.
   - by kubelet when pulling images for the pod.
  
positive.code: - Create a pod, which consumes the secret as an environment variable or as a file
  (using a `secret` volume).
  
  To create a secret object, use the following command, where the JSON file is a
  predefined secret:
  
  ====
  ----
  $ oc create -f secret.json
  ----
  ====
  
  
negative.code: content from the pods. You can mount secrets into containers using a volume
  plug-in or the system can use secrets to perform actions on behalf of a pod.
  
  .YAML Secret Object Definition
  ====
  
  [source,yaml]
  ----
  apiVersion: v1
  kind: Secret
  metadata:
    name: test-secret
    namespace: my-namespace
  data: <1>
    username: dmFsdWUtMQ0K <2>
    password: dmFsdWUtMg0KDQo=
  stringData: <3>
    hostname: myapp.mydomain.com <4>
  ----
  <1> The allowable format for the keys in the `data` field must meet the
  guidelines in the *DNS_SUBDOMAIN* value in
  