anchor.diff:  
               {
                    "clusterName": "my-cluster",
  -                 "blueprintName": "multi-node-hdfs-yarn",
  -                 "hostGroups": [
  -                     {
  -                          "name": "master",
  -                          "cardinality": 1
  -                     },
  -                     {
  -                         "name": "slave",
  -                         "cardinality": 3
  -                    } ]
  -            }
  -
  -+ Response 200 (application/json)
  -
  -        {
  -        }
  -
  -
  -## Retrieve Hadoop clusters [/clusters]
  -### List clusters [GET]
  -Retrieve all Hadoop clusters
  +                 "blueprintId": "1",
  +                 "description": "My multinode cluster"
  +            }
  +
  ++ Response 200 (application/json)
  +
  +        {
  +        }
  +
  +
  +## Retrieve Hadoop clusters [/stack/{stackId}/cluster]
  +### Retrieve a particular cluster [GET]
  +Retrieves a particular cluster configuration for the user
  +
  ++ Parameters
  +    + id (required String `id`) ... The identifier of the `stack`
   
   + Request
   
  
positive.code: Hadoop cluster related resources of the **Cloudbreak API**.
  
  
  ## Adding Hadoop clusters [/clusters]
  ### Create cluster [POST]
  Creates a Hadoop cluster based on a blueprint.
  
  + Request
  
      + Headers
  
negative.code:             "href": "http://172.17.0.2:8080/api/v1/clusters/MySingleNodeCluster2"
            }
          }
  