org.openecomp.groups.heat.HeatStack:
  derived_from: tosca.groups.Root
  description: Grouped all heat resources which are in the same heat stack
  properties:
    heat_file:
      type: string
      description: Heat file which associate to this group/heat stack
      required: true
      status: SUPPORTED
    description:
      type: string
      description: group description
      required: true
      status: SUPPORTED      
org.openecomp.groups.VfModule:
  derived_from: tosca.groups.Root
  description: Grouped all heat resources which are in the same VF Module
  properties:
    isBase:
      type: boolean
      description: Whether this module should be deployed before other modules
      required: true
      default: false
      status: SUPPORTED
    vf_module_label: 
      type: string
      required: true
      description: > 
        Alternate textual key used to reference this VF-Module model. 
        Must be unique within the VNF model
    vf_module_description:
      type: string
      required: true
      description: >
        Description of the VF-modules contents and purpose  
        (e.g. "Front-End" or "Database Cluster")
    min_vf_module_instances:
      type: integer
      required: true
      description: The minimum instances of this VF-Module
    max_vf_module_instances: 
      type: integer
      required: false
      description: The maximum instances of this VF-Module
    initial_count:
      type: integer
      required: false
      description: >
        The initial count of instances of the VF-Module. The value must be in the 
        range between min_vfmodule_instances and max_vfmodule_instances.
        If no value provided the initial count is the min_vfmodule_instances.
    vf_module_type:
      type: string
      required: true
      constraints:
        - valid_values: ["Base", "Expansion"]
    volume_group:
      type: boolean
      required: true
      default: false
      description: >
        "true" indicates that this VF Module model requires attachment to a Volume  
        Group. 
        VID operator must select the Volume Group instance to attach to a VF-Module 
        at deployment time.
    availability_zone_count:
      type: integer
      required: false
      description: >
        Quantity of Availability Zones needed for this VF-Module    
        (source: Extracted from VF-Module HEAT template)
    vfc_list:
      type: map
      entry_schema: 
        description: <vfc_id>:<count>
        type: string
      required: false
      description: >
        Identifies the set of VM types and their count included in the VF-Module
tosca.groups.Root:
  description: The TOSCA Group Type all other TOSCA Group Types derive from
  interfaces: 
    Standard:
      type: tosca.interfaces.node.lifecycle.Standard