anchor.diff:  Let's assume that we have a spring boot application named ``demo`` that uses properties to read its database
   configuration. We can create a Kubernetes secret using the following command:
   
  -```
  +----
   oc create secret generic db-secret --from-literal=username=user --from-literal=password=p455w0rd
  -```
  +----
   
   This would create the following secret (shown using `oc get secrets db-secret -o yaml`):
   
  -```yaml
  +[source,yaml]
   apiVersion: v1
   data:
     password: cDQ1NXcwcmQ=
  
positive.code:       size:
          core: 1
          max:16
  ```
  
  Spring Boot applications can also be configured differently depending on active profiles which will be merged together
  when the ConfigMap is read. It is possible to provide different property values for different profiles using an
  `application.properties|yaml` property, specifying profile-specific values each in their own document
  (indicated by the `---` sequence) as follows:
  
  ```yaml
  kind: ConfigMap
  apiVersion: v1
  metadata:
  
negative.code:                  secretKeyRef:
                     name: db-secret
                     key: password
  
  You can select the Secrets to consume in a number of ways:
  
  