etsi_nfv_sol001_vnfd_types.yaml

    derived_from: tosca.datatypes.Root
    description: Supports the specification of requirements related to extended resources of a container.
    properties:
      extended_resource:
        type: map
        description: The hardware platform specific extended resource. A map of string that contains one single key-value pair that describes one hardware platform specific container requirement.
        required: true
        entry_schema:
          type: string 
        constraints:
          - min_length: 1
          - max_length: 1
      amount:
        type: integer
        description: Requested amount of the indicated extended resource.
        required: true

  tosca.datatypes.nfv.Hugepages:
    derived_from: tosca.datatypes.Root
    description: Supports the specification of requirements on a particular hugepage size in terms of total memory needs. 
    properties:
      hugepage_size:
        type: scalar-unit.size
        description: Specifies the size of the hugepage.
        required: true
      requested_size:
        type: scalar-unit.size
        description: Specifies the total size required for all the hugepages of the size indicated by hugepage_size. 
        required: true

  tosca.datatypes.nfv.MaxNumberOfImpactedInstances:
    derived_from: tosca.datatypes.Root
    description: Specifies the maximum number of instances of a given Vdu.Compute node or VnfVirtualLink node that may be impacted simultaneously without impacting the functionality of the group of a given size. 
    properties:
      group_size:
        type: integer
        description: Determines the size of the group for which the max_number_of_impacted_instances is specified. If not present the size is not limited.   
        required: false
      max_number_of_impacted_instances:
        type: integer
        description: The maximum number of instances that can be impacted simultaneously within the group of the specified size.   
        required: true
 
  tosca.datatypes.nfv.MinNumberOfPreservedInstances:
    derived_from: tosca.datatypes.Root
    description: Specifies the minimum number of instances of a given Vdu.Compute node or VnfVirtualLink node which need to be preserved simultaneously. 
    properties:
      group_size:
        type: integer
        description: Determines the size of the group for which the min_number_of_preserved_instances is specified. If not present the size is not limited.   
        required: false
      min_number_of_preserved_instances:
        type: integer
        description: The minimum number of instances which need to be preserved simultaneously within the group of the specified size.   
        required: true

  tosca.datatypes.nfv.NfviMaintenanceInfo:
    derived_from: tosca.datatypes.Root
    description: Provides information related to the constraints and rules applicable to virtualised resources and their groups impacted due to NFVI maintenance operations 
    properties:
      impact_notification_lead_time:
        type: scalar-unit.time
        description: Specifies the minimum notification lead time requested for upcoming impact of the virtualised resource or their group (i.e. between the notification and the action causing the impact).    
        required: true
      is_impact_mitigation_requested:
        type: boolean
        description: Indicates whether it is requested that at the time of the notification of an upcoming change that is expected to have an impact on the VNF, virtualised resource(s) of the same characteristics as the impacted ones is/are provided to compensate for the impact (TRUE) or not (FALSE).  
        required: true
        default: false
      supported_migration_type:
        type: list
        description: Specifies the allowed migration types in the order of preference in case of an impact starting with the most preferred type. It is applicable to the Vdu.Compute node and to the VirtualBlockStorage, VirtualObjectStorage and VirtualFileStorage nodes.
        required: false
        entry_schema:
          type: string
          constraints:
            - valid_values: [ no_migration, offline_migration, live_migration ]
      max_undetectable_interruption_time:
        type: scalar-unit.time
        description: Specifies the maximum interruption time that can go undetected at the VNF level and therefore which will not trigger VNF-internal recovery during live migration. It is applicable to the Vdu.Compute node and to the VirtualBlockStorage, VirtualObjectStorage and VirtualFileStorage nodes.
        required: false
      min_recovery_time_between_impacts:
        type: scalar-unit.time
        description: Specifies the time required by the group to recover from an impact, thus, the minimum time requested between consecutive impacts of the group..
        required: false
      max_number_of_impacted_instances:
        type: list
        description: Specifies for different group sizes the maximum number of instances that can be impacted simultaneously within the group of virtualised resources without losing functionality.
        required: false
        entry_schema:
          type: tosca.datatypes.nfv.MaxNumberOfImpactedInstances
      min_number_of_preserved_instances:
        type: list
        description: Specifies for different group sizes the minimum number of instances which need to be preserved simultaneously within the group of virtualised resources. 
        required: false
        entry_schema:
          type: tosca.datatypes.nfv.MinNumberOfPreservedInstances
        
artifact_types:  
  tosca.artifacts.nfv.SwImage:
    derived_from: tosca.artifacts.Deployment.Image
    description: describes the software image which is directly loaded on the virtualisation container realizing of the VDU or is to be loaded on a virtual storage resource
    properties:
      name:
        type: string
        description: Name of this software image 
        required: true
      version:
        type: string
        description: Version of this software image 
        required: true
      provider:
        type: string
        description: Provider of this software image
        required: false
      checksum:
        type: tosca.datatypes.nfv.ChecksumData
        description:  Checksum of the software image file 
        required: true
      container_format:
        type: string
        description: The container format describes the container file format in which software image is provided 
        required: true
        constraints:
          - valid_values: [ aki, ami, ari, bare, docker, ova, ovf ]
      disk_format:
        type: string
        description: The disk format of a software image is the format of the underlying disk image 
        required: false
        constraints:
          - valid_values: [ aki, ami, ari, iso, qcow2, raw, vdi, vhd, vhdx, vmdk ]  
      min_disk:
        type: scalar-unit.size # Number
        description:  The minimal disk size requirement for this software image 
        required: false
        constraints:
          - greater_or_equal: 0 B
      min_ram:
        type: scalar-unit.size # Number
        description: The minimal RAM requirement for this software image 
        required: false
        constraints:
          - greater_or_equal: 0 B
      size:
        type: scalar-unit.size # Number
        description: The size of this software image 
        required: true
      operating_system:
        type: string
        description: Identifies the operating system used in the software image 
        required: false
      supported_virtualisation_environments:
        type: list
        description: Identifies the virtualisation environments (e.g. hypervisor) compatible with this software image 
        required: false
        entry_schema:
          type: string

  tosca.artifacts.Implementation.nfv.Mistral:
    derived_from: tosca.artifacts.Implementation
    description: artifacts for Mistral workflows 
    mime_type: application/x-yaml
    file_ext: [ yaml ]

  tosca.artifacts.nfv.HelmChart:
    derived_from: tosca.artifacts.File
    description: describes the Helm chart artifact.
    file_ext: [ tar, tar.gz, tgz ]

capability_types:
  
  tosca.capabilities.nfv.VirtualBindable:
    derived_from: tosca.capabilities.Node
    description: Indicates that the node that includes it can be pointed by a tosca.relationships.nfv.VirtualBindsTo relationship type which is used to model the VduHasCpd association

  tosca.capabilities.nfv.VirtualCompute:    
    derived_from: tosca.capabilities.Node
    description: Describes the capabilities related to virtual compute resources 
    properties:
      logical_node:
       type: map
       description: Describes the Logical Node requirements 
       required: false
       entry_schema:
         type: tosca.datatypes.nfv.LogicalNodeData
      requested_additional_capabilities:
       type: map
       description: Describes additional capability for a particular VDU 
       required: false
       entry_schema:
         type: tosca.datatypes.nfv.RequestedAdditionalCapability
      compute_requirements:
       type: map
       required: false 
       entry_schema:
         type: string
      virtual_memory:
       type: tosca.datatypes.nfv.VirtualMemory
       description: Describes virtual memory of the virtualized compute 
       required: true
      virtual_cpu:
       type: tosca.datatypes.nfv.VirtualCpu
       description: Describes virtual CPU(s) of the virtualized compute 
       required: true
      virtual_local_storage:
       type: list
       description: A list of virtual system disks created and destroyed as part of the VM lifecycle 
       required: false
       entry_schema:
        type: tosca.datatypes.nfv.VirtualBlockStorageData
        description: virtual system disk definition 

  tosca.capabilities.nfv.VirtualStorage:
    derived_from: tosca.capabilities.Root
    description: Describes the attachment capabilities related to Vdu.Storage

  tosca.capabilities.nfv.TrunkBindable:
    derived_from: tosca.capabilities.Node
    description: Indicates that the node that includes it can be pointed by a tosca.relationships.nfv.TrunkBindsTo relationship type which is used to model the trunkPortTopology. 
 
  tosca.capabilities.nfv.ContainerDeployable:
    derived_from: tosca.capabilities.Node
    description: A node type that includes the ContainerDeployable capability indicates that it can be pointed by tosca.relationships.nfv.DeploysTo relationship type

  tosca.capabilities.nfv.AssociableVdu:
    derived_from: tosca.capabilities.Node
    description: Indicates that the node that includes it can be pointed by a tosca.relationships.nfv.MciopAssociates relationship type which is used to model the associatedVdu property of the MciopProfile information element defined in ETSI GS NFV-IFA 011 [1].
    
relationship_types:
  tosca.relationships.nfv.VirtualBindsTo:
    derived_from: tosca.relationships.DependsOn
    description: Represents an association relationship between Vdu.Compute or Vdu.OsContainerDeployableUnit and VduCp node types 
    valid_target_types: [ tosca.capabilities.nfv.VirtualBindable ]

  tosca.relationships.nfv.AttachesTo:
    derived_from: tosca.relationships.Root
    description: Represents an association relationship between the Vdu.Compute or Vdu.OsContainerDeployableUnit and one of the node types, Vdu.VirtualBlockStorage, Vdu.VirtualObjectStorage or Vdu.VirtualFileStorage
    valid_target_types: [ tosca.capabilities.nfv.VirtualStorage ]

  tosca.relationships.nfv.TrunkBindsTo:
    derived_from: tosca.relationships.DependsOn
    description: Represents the association relationship between a VduCp node used as a trunk port and other VduSubCp nodes used as subports of the same trunk.
    valid_target_types: [ tosca.capabilities.nfv.TrunkBindable ]   

  tosca.relationships.nfv.DeploysTo:
    derived_from: tosca.relationships.DependsOn
    description: Represents an association relationship between Vdu.OsContainerDeployableUnit and Vdu.OsContainer node types
    valid_target_types: [tosca.capabilities.nfv.ContainerDeployable]

  tosca.relationships.nfv.MciopAssociates:
    derived_from: tosca.relationships.DependsOn
    description: Represents an association relationship between Mciop and Vdu.OsContainerDeployableUnit node types 
    valid_target_types: [ tosca.capabilities.nfv.AssociableVdu ]
    
interface_types:
  tosca.interfaces.nfv.Vnflcm:
    derived_from: tosca.interfaces.Root
    description: This interface encompasses a set of TOSCA operations corresponding to the VNF LCM operations defined in ETSI GS NFV-IFA 007 as well as to preamble and postamble procedures to the execution of the VNF LCM operations.
    operations:
      instantiate:
        description: Invoked upon receipt of an Instantiate VNF request
      # inputs:
        # additional_parameters:
        # type: tosca.datatypes.nfv.VnfOperationAdditionalParameters
        # required: false
     # derived types are expected to introduce additional_parameters with its
     # type derived from tosca.datatypes.nfv.VnfOperationAdditionalParameters
      instantiate_start:
        description: Invoked before instantiate
      instantiate_end:
        description: Invoked after instantiate
      terminate:
        description: Invoked upon receipt Terminate VNF request
      # inputs:
        # additional_parameters:
        # type: tosca.datatypes.nfv.VnfOperationAdditionalParameters
        # required: false
     # derived types are expected to introduce additional_parameters with its
     # type derived from tosca.datatypes.nfv.VnfOperationAdditionalParameters
      terminate_start:
        description: Invoked before terminate
      terminate_end:
        description: Invoked after terminate
      modify_information:
        description: Invoked upon receipt of a Modify VNF Information request
      modify_information_start:
        description: Invoked before modify_information
      modify_information_end:
        description: Invoked after modify_information
      change_flavour:
        description: Invoked upon receipt of a Change VNF Flavour request
      # inputs:
        # additional_parameters:
        # type: tosca.datatypes.nfv.VnfOperationAdditionalParameters
        # required: false
     # derived types are expected to introduce additional_parameters with its
     # type derived from tosca.datatypes.nfv.VnfOperationAdditionalParameters
      change_flavour_start:
        description: Invoked before change_flavour
      change_flavour_end:
        description: Invoked after change_flavour
      change_external_connectivity:
        description: Invoked upon receipt of a Change External VNF Connectivity  request
      # inputs:
        # additional_parameters:
        # type: tosca.datatypes.nfv.VnfOperationAdditionalParameters
        # required: false
     # derived types are expected to introduce additional_parameters with its
     # type derived from tosca.datatypes.nfv.VnfOperationAdditionalParameters
      change_external_connectivity_start:
        description: Invoked before change_external_connectivity
      change_external_connectivity_end:
        description: Invoked after change_external_connectivity
      operate:
        description: Invoked upon receipt of an Operate VNF request
      # inputs:
        # additional_parameters:
        # type: tosca.datatypes.nfv.VnfOperationAdditionalParameters
        # required: false
     # derived types are expected to introduce additional_parameters with its
     # type derived from tosca.datatypes.nfv.VnfOperationAdditionalParameters
      operate_start:
        description: Invoked before operate
      operate_end:
        description: Invoked after operate
      heal:
        description: Invoked upon receipt of a Heal VNF request
      # inputs:
      #   additional_parameters:
      #     type: tosca.datatypes.nfv.VnfOperationAdditionalParameters
      #     required: false
      # derived types are expected to introduce additional_parameters with its
      # type derived from tosca.datatypes.nfv.VnfOperationAdditionalParameters
        inputs:
          cause:
            type: string
            description: Indicates the reason why a healing procedure is required.
            required: false
          vnfc_instance_ids:
            type: list
            entry_schema:
              type: string
            description: List of VNFC instances requiring a healing action.
            required: false
      heal_start:
        description: Invoked before heal
      heal_end:
        description: Invoked after heal
      scale:
        description: Invoked upon receipt of a Scale VNF request
      # inputs:
        # additional_parameters:
        # type: tosca.datatypes.nfv.VnfOperationAdditionalParameters
        # required: false
     # derived types are expected to introduce additional_parameters with its
     # type derived from tosca.datatypes.nfv.VnfOperationAdditionalParameters
        inputs:
          type:
            type: string
            description: Indicates the type of the scale operation requested.
            required: false
            constraints:
              - valid_values: [ scale_out, scale_in ]
          aspect:
            type: string
            description: Identifier of the scaling aspect.
            required: false
          number_of_steps:
            type: integer
            description: Number of scaling steps to be executed.
            required: true
            constraints:
              - greater_than: 0
            default: 1
      scale_start:
        description: Invoked before scale
      scale_end:
        description: Invoked after scale 
      scale_to_level:
        description: Invoked upon receipt of a Scale VNF to Level request
      # inputs:
        # additional_parameters:
        # type: tosca.datatypes.nfv.VnfOperationAdditionalParameters
        # required: false
     # derived types are expected to introduce additional_parameters with its
     # type derived from tosca.datatypes.nfv.VnfOperationAdditionalParameters
        inputs:
          instantiation_level:
            type: string
            description: Identifier of the target instantiation level of the current deployment flavour to which the VNF is requested to be scaled. Either instantiation_level or scale_info shall be provided.
            required: false
          scale_info:
            type: map # key: aspectId
            description: For each scaling aspect of the current deployment flavour, indicates the target scale level to which the VNF is to be scaled. Either instantiation_level or scale_info shall be provided.
            required: false
            entry_schema:
              type: tosca.datatypes.nfv.ScaleInfo
      scale_to_level_start:
        description: Invoked before scale_to_level
      scale_to_level_end:
        description: Invoked after scale_to_level
      create_snapshot:
        description: Invoked upon receipt of a Create VNF snapshot request
        # inputs:
          # additional_parameters:
          #   type: tosca.datatypes.nfv.VnfOperationAdditionalParameters
          #   required: false
      # derived types are expected to introduce additional_parameters with its
      # type derived from tosca.datatypes.nfv.VnfOperationAdditionalParameters
      create_snapshot_start:
        description: Invoked before create_snapshot
      create_snapshot_end:
        description: Invoked after create_snapshot
      revert_to_snapshot:
        description: Invoked upon receipt of a Revert to VNF snapshot request
        # inputs:
          # additional_parameters:
          #   type: tosca.datatypes.nfv.VnfOperationAdditionalParameters
          #   required: false
      # derived types are expected to introduce additional_parameters with its
      # type derived from tosca.datatypes.nfv.VnfOperationAdditionalParameters
      revert_to_snapshot_start:
        description: Invoked before revert_to_snapshot
      revert_to_snapshot_end:
        description: Invoked after revert_to_snapshot
      change_current_package:
        description: Invoked by tosca.policies.nfv.VnfPackageChange
        # inputs:
          # additional_parameters:
          #   type: tosca.datatypes.nfv.VnfOperationAdditionalParameters
          #   required: false
      # derived types are expected to introduce additional_parameters with its
      # type derived from tosca.datatypes.nfv.VnfOperationAdditionalParameters
      change_current_package_start:
        description: Invoked by tosca.policies.nfv.VnfPackageChange 
      change_current_package_end:
        description: Invoked by tosca.policies.nfv.VnfPackageChange
    notifications:
      change_current_package_notification:
        description: Invoked upon receipt of a ChangeCurrentVnfPackage request
      change_current_package_start_notification:
        description: Invoked before the operation designated to changing the current VNF package
      change_current_package_end_notification:
        description: Invoked after the operation designated to changing the current VNF package

  tosca.interfaces.nfv.VnfIndicator:
    derived_from: tosca.interfaces.Root
    description: This interface is an empty base interface type for deriving VNF specific interface types that include VNF indicator specific notifications.

  tosca.interfaces.nfv.ChangeCurrentVnfPackage:
    derived_from: tosca.interfaces.Root
    description: This interface is an empty base interface type for deriving VNF specific interface types that include VNF Change Current VNF Package specific operation.
  # operations:
      # operation_name: name of a VNF-specific operation serving the Change current VNF Package request.
        # description: Invoked by tosca.policies.nfv.VnfPackageChange
        # inputs:
          # additional_parameters:
          #   type: tosca.datatypes.nfv.VnfOperationAdditionalParameters
          #   required: false
      # derived types are expected to introduce additional_parameters with its
      # type derived from tosca.datatypes.nfv.VnfOperationAdditionalParameters

node_types:
  tosca.nodes.nfv.VNF:
    derived_from: tosca.nodes.Root
    description: The generic abstract type from which all VNF specific node types shall be derived to form, together with other node types, the TOSCA service template(s) representing the VNFD
    properties:
      descriptor_id: # instead of vnfd_id
       type: string # UUID
       description: Identifier of this VNFD information element. This attribute shall be globally unique
       required: true
      descriptor_version: # instead of vnfd_version
       type: string
       description: Identifies the version of the VNFD
       required: true
      provider: # instead of vnf_provider
       type: string
       description: Provider of the VNF and of the VNFD
       required: true
      product_name: # instead of vnf_product_name
       type: string
       description: Human readable name for the VNF Product
       required: true
      software_version: # instead of vnf_software_version
       type: string
       description: Software version of the VNF
       required: true
      product_info_name: # instead of vnf_product_info_name
       type: string
       description: Human readable name for the VNF Product
       required: false
      product_info_description: # instead of vnf_product_info_description
       type: string
       description: Human readable description of the VNF Product
       required: false
      vnfm_info:
       type: list
       required: true
       description: Identifies VNFM(s) compatible with the VNF
       entry_schema:
        type: string
        constraints:
          - pattern: (^etsivnfm:v[0-9]?[0-9]\.[0-9]?[0-9]\.[0-9]?[0-9]$)|(^[0-9]+:[a-zA-Z0-9.-]+$)
      localization_languages:
       type: list
       description: Information about localization languages of the VNF
       required: false
       entry_schema:
        type: string #IETF RFC 5646 string
      default_localization_language:
       type: string #IETF RFC 5646 string
       description: Default localization language that is instantiated if no information about selected localization language is available
       required: false
      #configurable_properties:
       #type: tosca.datatypes.nfv.VnfConfigurableProperties
       #description: Describes the configurable properties of the VNF
       #required: false
       # derived types are expected to introduce configurable_properties 
       # with its type derived from tosca.datatypes.nfv.VnfConfigurableProperties
      #modifiable_attributes:
       #type: tosca.datatypes.nfv.VnfInfoModifiableAttributes
       #description: Describes the modifiable attributes of the VNF
       #required: false 
       # derived types are expected to introduce modifiable_attributes
       # with its type derived from
       # tosca.datatypes.nfv.VnfInfoModifiableAttributes
      lcm_operations_configuration:
       type: tosca.datatypes.nfv.VnfLcmOperationsConfiguration
       description: Describes the configuration parameters for the VNF LCM operations
       required: false
      monitoring_parameters:
       type: map # key: id
       entry_schema:
        type: tosca.datatypes.nfv.VnfMonitoringParameter
       description: Describes monitoring parameters applicable to the VNF.
       required: false
      flavour_id:
       type: string
       description: Identifier of the Deployment Flavour within the VNFD
       required: true
      flavour_description:
       type: string
       description: Human readable description of the DF
       required: true
      vnf_profile:
       type: tosca.datatypes.nfv.VnfProfile
       description: Describes a profile for instantiating VNFs of a particular NS DF according to a specific VNFD and VNF DF
       required: false
    attributes:
      scale_status:
        type: map # key: aspectId
        description: Scale status of the VNF, one entry per aspect. Represents for every scaling aspect how "big" the VNF has been scaled w.r.t. that aspect.
        entry_schema:
          type: tosca.datatypes.nfv.ScaleInfo
    requirements:
      - virtual_link:
          capability: tosca.capabilities.nfv.VirtualLinkable
          relationship: tosca.relationships.nfv.VirtualLinksTo
          occurrences: [ 0, 1 ]
    # Additional requirements shall be defined in the VNF specific node type (deriving from tosca.nodes.nfv.VNF) corresponding to NS virtual links that need to connect to VnfExtCps
    interfaces:
      Vnflcm:
        type: tosca.interfaces.nfv.Vnflcm
    # VnfIndicator:
    #   type: tosca.interfaces.nfv.VnfIndicator
    # derived types are expected to introduce Vnf Indicator interfaces 
    # with their type derived from tosca.interfaces.nfv.VnfIndicator

  tosca.nodes.nfv.VnfExtCp:
    derived_from: tosca.nodes.nfv.Cp
    description: Describes a logical external connection point, exposed by the VNF enabling connection with an external Virtual Link 
    properties:
      virtual_network_interface_requirements:
       type: list
       description: The actual virtual NIC requirements that is been assigned when instantiating the connection point 
       required: false
       entry_schema:
        type: tosca.datatypes.nfv.VirtualNetworkInterfaceRequirements
    requirements:
      - external_virtual_link:
          capability: tosca.capabilities.nfv.VirtualLinkable
          relationship: tosca.relationships.nfv.VirtualLinksTo
          occurrences: [0, 1]
      - internal_virtual_link: 
          capability: tosca.capabilities.nfv.VirtualLinkable
          relationship: tosca.relationships.nfv.VirtualLinksTo
          occurrences: [1, 1]

  tosca.nodes.nfv.Vdu.Compute:
    derived_from: tosca.nodes.Root
    description: Describes the virtual compute part of a VDU which is a construct  supporting the description of the deployment and operational behavior of a VNFC 
    properties:
      name:
        type: string
        description: Human readable name of the VDU 
        required: true
      description:
        type: string
        description: Human readable description of the VDU 
        required: true
      boot_order:
        type: boolean
        description: indicates whether the order of the virtual_storage requirements is used as the boot index (the first requirement represents the lowest index and defines highest boot priority) 
        required: true
        default: false
      nfvi_constraints:
        type: map
        description: Describes constraints on the NFVI for the VNFC instance(s) created from this VDU. This property is reserved for future use in the present document.
        required: false
        entry_schema:
          type: string
      monitoring_parameters:
        type: map # key: id
        description: Describes monitoring parameters applicable to a VNFC instantiated from this VDU
        required: false
        entry_schema: 
          type: tosca.datatypes.nfv.VnfcMonitoringParameter
      #configurable_properties:
        #type: tosca.datatypes.nfv.VnfcConfigurableProperties
        #required: false 
        # derived types are expected to introduce
        # configurable_properties with its type derived from
        # tosca.datatypes.nfv.VnfcConfigurableProperties
      vdu_profile:
        type: tosca.datatypes.nfv.VduProfile
        description: Defines additional instantiation data for the VDU.Compute node 
        required: true
      boot_data:
        type: tosca.datatypes.nfv.BootData
        description: Contains the information used to customize a virtualised compute resource at boot time. The bootData may contain variable parts that are replaced by deployment specific values before being sent to the VIM.
        required: false  
    capabilities:
      virtual_compute:
        type: tosca.capabilities.nfv.VirtualCompute
        occurrences: [ 1, 1 ]
      virtual_binding:
        type: tosca.capabilities.nfv.VirtualBindable
        occurrences: [ 1, UNBOUNDED ]
    requirements:
      - virtual_storage:
          capability: tosca.capabilities.nfv.VirtualStorage
          relationship: tosca.relationships.nfv.AttachesTo
          occurrences: [ 0, UNBOUNDED ]

  tosca.nodes.nfv.Vdu.VirtualBlockStorage:
    derived_from: tosca.nodes.Root
    description: This node type describes the specifications of requirements related to virtual block storage resources
    properties:
      virtual_block_storage_data:
       type: tosca.datatypes.nfv.VirtualBlockStorageData
       description: Describes the block storage characteristics. 
       required: true
      per_vnfc_instance:
        type: boolean
        description: Indicates whether the virtual storage descriptor shall be instantiated per VNFC instance.
        required: true
        default: true
      nfvi_maintenance_info:
        type: tosca.datatypes.nfv.NfviMaintenanceInfo
        description: Provides information on the rules to be observed when an instance based on this VirtualBlockStorage is impacted during NFVI operation and maintenance (e.g. NFVI resource upgrades). 
        required: false        
    capabilities:
      virtual_storage:
       type: tosca.capabilities.nfv.VirtualStorage
       description: Defines the capabilities of virtual_storage.

  tosca.nodes.nfv.Vdu.VirtualObjectStorage: 
    derived_from: tosca.nodes.Root
    description: This node type describes the specifications of requirements related to virtual object storage resources
    properties:
      virtual_object_storage_data:
        type: tosca.datatypes.nfv.VirtualObjectStorageData
        description: Describes the object storage characteristics.
        required: true
      per_vnfc_instance:
        type: boolean
        description: Indicates whether the virtual storage descriptor shall be instantiated per VNFC instance.
        required: true
        default: true
      nfvi_maintenance_info:
        type: tosca.datatypes.nfv.NfviMaintenanceInfo
        description: Provides information on the rules to be observed when an instance based on this VirtualObjectStorage is impacted during NFVI operation and maintenance (e.g. NFVI resource upgrades). 
        required: false
    capabilities:
      virtual_storage:
        type: tosca.capabilities.nfv.VirtualStorage
        description: Defines the capabilities of virtual_storage.

  tosca.nodes.nfv.Vdu.VirtualFileStorage: 
     derived_from: tosca.nodes.Root
     description: This node type describes the specifications of requirements related to virtual file storage resources
     properties:
       virtual_file_storage_data:
         type: tosca.datatypes.nfv.VirtualFileStorageData
         description: Describes the file  storage characteristics.
         required: true
       per_vnfc_instance:
         type: boolean
         description: Indicates whether the virtual storage descriptor shall be instantiated per VNFC instance.
         required: true
         default: true
       nfvi_maintenance_info:
         type: tosca.datatypes.nfv.NfviMaintenanceInfo
         description: Provides information on the rules to be observed when an instance based on this VirtualFileStorage is impacted during NFVI operation and maintenance (e.g. NFVI resource upgrades). 
         required: false         
     capabilities:
       virtual_storage:
         type: tosca.capabilities.nfv.VirtualStorage
         #description: Defines the capabilities of virtual_storage.
     requirements:
      - virtual_link:
          capability: tosca.capabilities.nfv.VirtualLinkable
          relationship: tosca.relationships.nfv.VirtualLinksTo
          occurrences: [1, 1]
          # description: Describes the requirements for linking to virtual link

  tosca.nodes.nfv.VduCp:
     derived_from: tosca.nodes.nfv.Cp
     description: describes network connectivity between a VNFC instance based on this VDU and an internal VL 
     properties:
       bitrate_requirement:
         type: integer   # in bits per second
         description: Bitrate requirement in bit per second on this connection point 
         required: false
         constraints: 
           - greater_or_equal: 0
       virtual_network_interface_requirements:
         type: list
         description: Specifies requirements on a virtual network interface realising  the CPs instantiated from this CPD 
         required: false
         entry_schema:
           type: tosca.datatypes.nfv.VirtualNetworkInterfaceRequirements
       order:
         type: integer
         description: The order of the NIC on the compute instance (e.g.eth2)
         required: false
         constraints:
           - greater_or_equal: 0
       vnic_type: 
         type: string
         description: Describes the type of the virtual network interface realizing the CPs instantiated from this CPD
         required: false
         constraints:
         - valid_values: [ normal, macvtap, direct, baremetal, virtio-forwarder, direct-physical, smart-nic, bridge, ipvlan, loopback, macvlan, ptp, vlan, host-device ]
     capabilities: 
       trunk_binding: # This capability is available only the trunk_mode property value of this VduCp is true and there is at least one VduSubCp defined as subport of the same trunk.
         type: tosca.capabilities.nfv.TrunkBindable
         occurrences: [ 0, UNBOUNDED ]
     requirements:
       - virtual_link:
           capability: tosca.capabilities.nfv.VirtualLinkable
           relationship: tosca.relationships.nfv.VirtualLinksTo
           occurrences: [1, 1]
       - virtual_binding:
           capability: tosca.capabilities.nfv.VirtualBindable
           relationship: tosca.relationships.nfv.VirtualBindsTo
           occurrences: [0, 1]

  tosca.nodes.nfv.VnfVirtualLink:
    derived_from: tosca.nodes.Root
    description: Describes the information about an internal VNF VL 
    properties:
      connectivity_type:
        type: tosca.datatypes.nfv.ConnectivityType
        description: Specifies the protocol exposed by the VL and the flow pattern supported by the VL 
        required: true
      description:
        type: string
        description: Provides human-readable information on the purpose of the VL 
        required: false
      test_access:
        type: list
        description: Test access facilities available on the VL 
        required: false
        entry_schema:
          type: string
          constraints:
            - valid_values: [ passive_monitoring, active_loopback ]
      vl_profile:
        type: tosca.datatypes.nfv.VlProfile
        description: Defines additional data for the VL 
        required: true
      monitoring_parameters:
        type: map #key: id
        entry_schema:
          type: tosca.datatypes.nfv.VirtualLinkMonitoringParameter
        description: Describes monitoring parameters applicable to the VL
        required: false
      nfvi_maintenance_info:
        type: tosca.datatypes.nfv.NfviMaintenanceInfo
        description: Provides information on the rules to be observed when an instance based on this VnfVirtualLink is impacted during NFVI operation and maintenance (e.g. NFVI resource upgrades). 
        required: false
    capabilities:
      virtual_linkable:
       type: tosca.capabilities.nfv.VirtualLinkable

  tosca.nodes.nfv.VipCp:
    derived_from: tosca.nodes.nfv.Cp
    description: Describes a connection point to allocate one or a set of virtual IP addresses 
    properties:
      dedicated_ip_address:
        type: boolean
        description: Indicates whether the VIP address shall be different from the addresses allocated to all associated VduCp instances or shall be the same as one of them.
        required: true
        default: true
      vip_function:
        type: string
        description: "Indicates the function the virtual IP address is used for: high availability or load balancing. When used for high availability, only one of the internal VDU CP instances or VNF external CP instances that share the virtual IP is bound to the VIP address at a time. When used for load balancing purposes all CP instances that share the virtual IP are bound to it." 
        required: true
        constraints:
          - valid_values: [ high_availability, load_balance ]
    requirements:
      - target:
          capability: tosca.capabilities.Node
          node: tosca.nodes.nfv.VduCp
          relationship: tosca.relationships.DependsOn
          occurrences: [ 1, UNBOUNDED ]
      - virtual_link:
          capability: tosca.capabilities.nfv.VirtualLinkable
          relationship: tosca.relationships.nfv.VipVirtualLinksTo
          occurrences: [1, 1]

  tosca.nodes.nfv.VduSubCp:
    derived_from: tosca.nodes.nfv.VduCp
    description: describes network connectivity between a VNFC instance based on this VDU and an internal VL through a trunk port 
    properties:
      segmentation_type:
        type: string
        description: Specifies the encapsulation type for the traffics coming in and out of the trunk subport.
        required: false
        constraints:
          - valid_values: [ vlan, inherit ]
      segmentation_id:
        type: integer
        description: Specifies the segmentation ID for the subport, which is used to differentiate the traffics on different networks coming in and out of the trunk port.
        required: false
        constraints:
          - greater_or_equal: 0
    requirements:
      - trunk_binding:
          capability: tosca.capabilities.nfv.TrunkBindable
          relationship: tosca.relationships.nfv.TrunkBindsTo
          node: tosca.nodes.nfv.VduCp
          occurrences: [1, 1]
 
  tosca.nodes.nfv.Vdu.OsContainer:    
    derived_from: tosca.nodes.Root
    description: Describes the resources of a single OS container within a VDU 
    properties:
      name:
        type: string
        description: Human readable name of the OS container 
        required: true
      description:
        type: string
        description: Human readable description of the OS container 
        required: true
      requested_cpu_resources:
        type: integer
        description: Number of CPU resources requested for the OS container (e.g. in milli-CPU-s).
        required: false
        constraints:
          - greater_or_equal: 0
      cpu_resource_limit:
        type: integer
        description: Number of CPU resources the OS container can maximally use (e.g. in milli-CPU).
        required: false
        constraints:
          - greater_or_equal: 0
      requested_memory_resources:
        type: scalar-unit.size 
        description: Amount of memory resources requested for the OS container (e.g. in MB).
        required: false
      memory_resource_limit:
        type: scalar-unit.size 
        description: Amount of memory resources the OS container can maximum use (e.g. in MB).
        required: false
      requested_ephemeral_storage_resources:
        type: scalar-unit.size 
        description: Size of ephemeral storage resources requested for the OS container (e.g. in GB).
        required: false
      ephemeral_storage_resource_limit:
        type: scalar-unit.size 
        description: Size of ephemeral storage resources the OS container can maximum use (e.g. in GB).
        required: false
      extended_resource_requests:
        type: list
        description: Extended resources and their respective amount required by the container.
        required: false
        entry_schema:
          type: tosca.datatypes.nfv.ExtendedResourceData
        constraints:
          - min_length: 1
      huge_pages_resources:
        type: list
        description: The requirement for huge pages resources. Each element in the list indicates a hugepage size and the total memory requested for hugepages of that size.
        required: false
        entry_schema: 
          type: tosca.datatypes.nfv.Hugepages          
    capabilities:
      container_deployable:
        type: tosca.capabilities.nfv.ContainerDeployable
        occurrences: [ 1, UNBOUNDED ]
 
  tosca.nodes.nfv.Vdu.OsContainerDeployableUnit:
    derived_from: tosca.nodes.Root
    description: Describes the aggregate of container of a VDU (when realized as OS containers) which supporting the description of the deployment and operational behavior of a VNFC 
    properties:
      name:
        type: string
        description: Human readable name of the VDU 
        required: true
      description:
        type: string
        description: Human readable description of the VDU 
        required: true
      logical_node:
       type: map
       description: Describes the Logical Node requirements 
       required: false
       entry_schema:
         type: tosca.datatypes.nfv.LogicalNodeData
      requested_additional_capabilities:
       type: map
       description: Describes additional capability for a particular OS container 
       required: false
       entry_schema:
         type: tosca.datatypes.nfv.RequestedAdditionalCapability
      nfvi_constraints:
        type: map
        description: Describes constraints on the NFVI for the VNFC instance(s) created from this VDU. This property is reserved for future use in the present document.
        required: false
        entry_schema:
          type: string
     # configurable_properties:
     #   type: tosca.datatypes.nfv.VnfcConfigurableProperties
     #   required: false 
     #    derived types are expected to introduce
     #    configurable_properties with its type derived from
     #    tosca.datatypes.nfv.VnfcConfigurableProperties
      vdu_profile:
        type: tosca.datatypes.nfv.VduProfile
        description: Defines additional instantiation data for the Vdu.OsContainerDeployableUnit node
        required: true
      mcio_constraint_params:
        type: list
        entry_schema:
          type: string
          constraints:
            - valid_values:
                - affinity_nfvi_pop
                - affinity_zone
                - affinity_zone_group
                - affinity_nfvi_node
                - affinity_cis_node
                - anti_affinity_nfvi_pop
                - anti_affinity_zone
                - anti_affinity_zone_group
                - anti_affinity_nfvi_node
                - anti_affinity_cis_node
                - local_affinity_nfvi_pop
                - local_affinity_zone
                - local_affinity_zoneGroup
                - local_affinity_nfvi_node
                - local_affinity_cis_node
                - local_anti_affinity_nfvi_pop
                - local_anti_affinity_zone
                - local_anti_affinity_zone_group
                - local_anti_affinity_nfvi_node
                - local_anti_affinity_cis_node
                - node_additional_capability_ssd
                - node_additional_capability_dpdk
                - node_additional_capability_sriov
                - node_additional_capability_gpu
                - node_additional_capability_fpga
                - node_additional_capability_cpu_pin
                - node_capability_logical_numa
                - node_pool
        description: Defines the parameter names for constraints expected to be assigned to MCIOs realizing this Vdu.OsContainerDeployableUnit. The value specifies the standardized semantical context of the MCIO constraints.
        required: false
    capabilities:
      virtual_binding:
        type: tosca.capabilities.nfv.VirtualBindable
        occurrences: [ 0, UNBOUNDED ]
      associable:
        type: tosca.capabilities.nfv.AssociableVdu
        occurrences: [ 1, 1 ]
    requirements:
      - virtual_storage:
          capability: tosca.capabilities.nfv.VirtualStorage
          relationship: tosca.relationships.nfv.AttachesTo
          occurrences: [ 0, UNBOUNDED ]
      - container:
          capability: tosca.capabilities.nfv.ContainerDeployable
          relationship: tosca.relationships.nfv.DeploysTo
          occurrences: [ 1, UNBOUNDED ]

  tosca.nodes.nfv.Mciop:
    derived_from: tosca.nodes.Root
    description: Representation of the object described by the mciop artifact, capable of being profiled by the properties of the MciopProfile information element defined in ETSI GS NFV-IFA 011 [1].