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{
  "blueprint" : "blueprint-name",
  "default_password" : "super-secret-password",
  "configurations" : [
    {
      "configuration-type" : {
        "property-name" : "property-value"
      }
    }
    ...
  ],     
  "host_groups" :[
    { 
      "name" : "host-group-name",  
      "configurations" : [
        {
          "configuration-type" : {
            "property-name" : "property-value"
          }
        }
      ],     
      "hosts" : [          
        { 
          "fqdn" : "host.domain.com"
        },
        { 
          "fqdn" : "host2.domain.com"
        }
        ...
      ]
    }
    ...
  ]
}

 Cluster Creation Template Structure: Host Mappings and Configuration Field Descriptions

• blueprint : Name of the blueprint that defines the cluster to be deployed.  Blueprint must already exist.  Required field.
• default_password : Optional field which specifies a default password for all required passwords which are not specified in the blueprint or cluster creation template configurations.
• configurations : A list of configuration maps keyed by configuration type. An example of a configuration type is "core-site".  When specified at the top level, configurations are applied at cluster scope and override default values for the cluster.  When specified within a "host_groups" element, configurations are applied at the host level for all hosts mapped to the host group.  Host scoped configurations override cluster scoped configuration for all hosts mapped to the host group.  All cluster scoped and host group scoped configurations specified here override configurations specified in the corresponding blueprint.  The configurations element is optional at both levels.  
• host_groups : A list of host groups being deployed to the cluster.  At least one host group must be specified.
  • name : Required field which must correspond to a name of a host group in the associated blueprint.
  • hosts : List of host mapping information
    • fqdn : Fully qualified domain name for each host that is being mapped to the host group.  At least one host must be specified

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