SOL003VNFLifecycleManagement_def.yaml

# Copyright (c) ETSI 2017.
# https://forge.etsi.org/etsi-forge-copyright-notice.txt

definitions:
  InstantiateVnfRequest:
    description: >
      This type represents request parameters for the "Instantiate VNF" operation. 
      It shall comply with the provisions defined in table 5.5.2.4-1.

      NOTE 1:	The indication of externally-managed internal VLs is needed in case 
              networks have been pre-configured for use with certain VNFs, for instance 
              to ensure that these networks have certain properties such as security or 
              acceleration features, or to address particular network topologies. 
              The present document assumes that externally-managed internal VLs are 
              managed by the NFVO and created towards the VIM.
      NOTE 2:	It is possible to have several ExtManagedVirtualLinkData for the same VNF 
              internal VL in case of a multi-site VNF spanning several VIMs. The set of 
              ExtManagedVirtualLinkData corresponding to the same VNF internal VL shall 
              indicate so by referencing to the same VnfVirtualLinkDesc and externally-managed 
              multi-site VL instance (refer to clause 4.4.1.12).
    type: object
    required:
      - flavourId
    properties:
      flavourId:
        description: >
          Identifier of the VNF deployment flavour to be instantiated.
        $ref: "../../../definitions/SOL002SOL003_def.yaml#/definitions/IdentifierInVnfd"
      instantiationLevelId:
        description: >
          Identifier of the instantiation level of the deployment flavour to be
          instantiated. If not present, the default instantiation level as
          declared in the VNFD is instantiated.
        $ref: "../../../definitions/SOL002SOL003_def.yaml#/definitions/IdentifierInVnfd"
      extVirtualLinks:
        description: >
          Information about external VLs to connect the VNF to.
        type: array
        items:
          $ref: "../../../definitions/SOL002SOL003_def.yaml#/definitions/ExtVirtualLinkData"
      extManagedVirtualLinks:
        description: >
          Information about internal VLs that are managed by the NFVO. See note 1 and note 2.
        type: array
        items:
          $ref: "#/definitions/ExtManagedVirtualLinkData"
      vimConnectionInfo:
        description: >
          Information about VIM connections to be used for managing the resources for the VNF instance, or refer to
          external / externally-managed virtual links. This attribute shall only be supported and may be present if 
          VNF-related resource management in direct mode is applicable. The VNFM shall apply the content of this 
          attribute to the "vimConnectionInfo" attribute of "VnfInstance" according to the rules of JSON Merge Patch 
          (see IETF RFC 7396).
        type: object
        additionalProperties:
          $ref: "../../../definitions/SOL002SOL003_def.yaml#/definitions/VimConnectionInfo"

      localizationLanguage:
        description: >
          Localization language of the VNF to be instantiated. The value shall
          comply with the format defined in IETF RFC 5646.
        $ref: "../../../definitions/SOL002SOL003_def.yaml#/definitions/String"
      additionalParams:
        description: >
          Additional input parameters for the instantiation process, specific
          to the VNF being instantiated, as declared in the VNFD as part of
          "InstantiateVnfOpConfig".
        $ref: "../../../definitions/SOL002SOL003_def.yaml#/definitions/KeyValuePairs"
      extensions:
        description: >
          If present, this attribute provides modifications to the default values, 
          as obtained from the VNFD, of the "extensions" attribute in "VnfInstance", 
          as defined in clause 5.5.2.2. Provisions for handling extensions during the
          operation are defined in clause 5.4.4.3.1.
        $ref: "../../../definitions/SOL002SOL003_def.yaml#/definitions/KeyValuePairs"
      vnfConfigurableProperties:
        description: >
          If present, this attribute provides modifications to the default values, as obtained from the VNFD, of 
          the "vnfConfigurableProperties" attribute in "VnfInstance", as defined in clause 5.5.2.2. Provisions for 
          handling configurable properties during the operation are defined in clause 5.4.4.3.1.
        $ref: "../../../definitions/SOL002SOL003_def.yaml#/definitions/KeyValuePairs"

  ExtManagedVirtualLinkData:
    type: object
    required:
      - id
      - vnfVirtualLinkDescId
      - resourceId
    properties:
      id:
        description: >
          The identifier of the externally-managed internal VL instance. The
          identifier is assigned by the NFV-MANO entity that manages this VL
          instance.
        $ref: "../../../definitions/SOL002SOL003_def.yaml#/definitions/Identifier"
      vnfVirtualLinkDescId:
        description: >
          The identifier of the VLD in the VNFD for this VL.
        $ref: "../../../definitions/SOL002SOL003_def.yaml#/definitions/IdentifierInVnfd"
      vimConnectionId:
        description: >
          Identifier of the VIM connection to manage this resource. This
          attribute shall only be supported and present if VNF-related
          resource management in direct mode is applicable.
        $ref: "../../../definitions/SOL002SOL003_def.yaml#/definitions/Identifier"
      resourceProviderId:
        description: >
          Identifies the entity responsible for the management of this
          resource. This attribute shall only be supported and present if
          VNF-related resource management in indirect mode is applicable. The
          identification scheme is outside the scope of the present document.
        $ref: "../../../definitions/SOL002SOL003_def.yaml#/definitions/Identifier"
      resourceId:
        description: >
          The identifier of the resource in the scope of the VIM or the
          resource provider.
        $ref: "../../../definitions/SOL002SOL003_def.yaml#/definitions/IdentifierInVim"
      vnfLinkPort:
        description: >
          Externally provided link ports to be used to connect VNFC connection points to this externally-managed VL
          on this network resource. If this attribute is not present, the VNFM shall create the link ports on the
          externally-managed VL.
        type: array
        items:
          $ref: "../../../definitions/SOL002SOL003_def.yaml#/definitions/VnfLinkPortData"
      extManagedMultisiteVirtualLinkId:
        description: >
          Identifier of the externally-managed multi-site VL instance. The identifier is assigned by the NFVMANO
          entity that manages the externally managed multi-site VL instance. It shall be present when the present
          externally-managed internal VL (indicated by extManagedVirtualLinkId) is part of a multi-site VL, e.g.,
          in support of multi-site VNF spanning several VIMs. All externally-managed internal VL instances
          corresponding to an internal VL created based on the same virtualLinkDescId shall refer to the same
          extManagedMultisiteVirtualLinkId.
        $ref: "../../../definitions/SOL002SOL003_def.yaml#/definitions/Identifier"

  ChangeVnfFlavourRequest:
    description: >
      This type represents request parameters for the "Change VNF flavour" operation. 
      It shall comply with the provisions defined in table 5.5.2.7-1.

      NOTE 1:	The indication of externally-managed internal VLs is needed in case networks 
              have been pre-configured for use with certain VNFs, for instance to ensure 
              that these networks have certain properties such as security or acceleration 
              features, or to address particular network topologies. The present document 
              assumes that externally-managed internal VLs are managed by the NFVO and created 
              towards the VIM.
      NOTE 2:	It is possible to have several ExtManagedVirtualLinkData for the same VNF internal 
              VL in case of a multi-site VNF spanning several VIMs. The set of ExtManagedVirtualLinkData 
              corresponding to the same VNF internal VL shall indicate so by referencing to the same 
              VnfVirtualLinkDesc and externally-managed multi-site VL instance (refer to clause 4.4.1.12).
    type: object
    required:
      - newFlavourId
    properties:
      newFlavourId:
        description: >
          Identifier of the VNF deployment flavour to be instantiated.
        $ref: "../../../definitions/SOL002SOL003_def.yaml#/definitions/IdentifierInVnfd"
      instantiationLevelId:
        description: >
          Identifier of the instantiation level of the deployment flavour to
          be instantiated. If not present, the default instantiation level as
          declared in the VNFD is instantiated.
        $ref: "../../../definitions/SOL002SOL003_def.yaml#/definitions/IdentifierInVnfd"
      extVirtualLinks:
        description: >
          Information about external VLs to connect the VNF to.
          Entries in the list of external VLs that are unchanged need not be supplied as part of this request.
        type: array
        items:
          $ref: "../../../definitions/SOL002SOL003_def.yaml#/definitions/ExtVirtualLinkData"
      extManagedVirtualLinks:
        description: >
          Information about internal VLs that are managed by the NFVO. See notes 1 and 2.
        type: array
        items:
          $ref: "#/definitions/ExtManagedVirtualLinkData"
      vimConnectionInfo:
        description: >
          Information about VIM connections to be used for managing the resources for the VNF instance, or refer to
          external / externally-managed virtual links. This attribute shall only be supported and may be present if 
          VNF-related resource management in direct mode is applicable. The VNFM shall apply the content of this 
          attribute to the "vimConnectionInfo" attribute of "VnfInstance" according to the rules of JSON Merge Patch 
          (see IETF RFC 7396).
        type: object
        additionalProperties:
          $ref: "../../../definitions/SOL002SOL003_def.yaml#/definitions/VimConnectionInfo"
      additionalParams:
        description: >
          Additional input parameters for the instantiation process, specific
          to the VNF being instantiated, as declared in the VNFD as part of
          "InstantiateVnfOpConfig".
        $ref: "../../../definitions/SOL002SOL003_def.yaml#/definitions/KeyValuePairs"
      extensions:
        description: >
          If present, this attribute provides modifications to the values of the "extensions" 
          attribute in "VnfInstance", as defined in clause 5.5.2.2. Provisions for handling 
          extensions during the operation, are defined in clause 5.4.7.3.1.
        $ref: "../../../definitions/SOL002SOL003_def.yaml#/definitions/KeyValuePairs"
      vnfConfigurableProperties:
        description: >
          If present, this attribute provides modifications to the values of the "vnfConfigurableProperties" attribute 
          in  "VnfInstance", as defined in clause 5.5.2.2. 
          Provisions for handling VNF configurable properties during the operation, are defined in clause 5.4.7.3.1.
        $ref: "../../../definitions/SOL002SOL003_def.yaml#/definitions/KeyValuePairs"

  TerminateVnfRequest:
    description: >
      This type represents request parameters for the "Terminate VNF" operation. 
      It shall comply with the provisions defined in table 5.5.2.8-1.

      NOTE:	If the VNF is still in service, requesting forceful termination can 
            adversely impact network service.
    type: object
    required:
      - terminationType
    properties:
      terminationType:
        description: >
          Indicates whether forceful or graceful termination is requested. 
          See note.

          Permitted values:
          - FORCEFUL: The VNFM will shut down the VNF and release the
                      resources immediately after accepting the request.
          - GRACEFUL: The VNFM will first arrange to take the VNF out of
                      service after accepting the request. Once the operation 
                      of taking the VNF out of service finishes (irrespective 
                      of whether it has succeeded or failed) or once the timer 
                      value specified in the "gracefulTerminationTimeout" 
                      attribute expires, the VNFM will shut down the VNF and 
                      release the resources.
        type: string
        enum:
          - FORCEFUL
          - GRACEFUL
      gracefulTerminationTimeout:
        description: >
          This attribute is only applicable in case of graceful termination.
          It defines the time to wait for the VNF to be taken out of service
          before shutting down the VNF and releasing the resources.
          The unit is seconds.
          If not given and the "terminationType" attribute is set to
          "GRACEFUL", it is expected that the VNFM waits for the successful
          taking out of service of the VNF, no matter how long it takes,
          before shutting down the VNF and releasing the resources.
        type: integer
      additionalParams:
        description: >
          Additional parameters passed by the NFVO as input to the termination
          process, specific to the VNF being terminated, as declared in the
          VNFD as part of "TerminateVnfOpConfig".
        $ref: "../../../definitions/SOL002SOL003_def.yaml#/definitions/KeyValuePairs"

  HealVnfRequest:
    type: object
    properties:
      cause:
        description: >
          Indicates the reason why a healing procedure is required.
        $ref: "../../../definitions/SOL002SOL003_def.yaml#/definitions/String"
      additionalParams:
        description: >
          Additional parameters passed by the NFVO as input to the healing
          process, specific to the VNF being healed, as declared in the VNFD
          as part of "HealVnfOpConfig".
        $ref: "../../../definitions/SOL002SOL003_def.yaml#/definitions/KeyValuePairs"

  OperateVnfRequest:
    description: >
      This type represents request parameters for the "Operate VNF" operation. 
      It shall comply with the provisions defined in table 5.5.2.10-1.

      NOTE:	The "stopType" and "gracefulStopTimeout" attributes shall be absent, 
            when the "changeStateTo" attribute is equal to "STARTED". 
            The "gracefulStopTimeout" attribute shall be present, when the "changeStateTo" 
            is equal to "STOPPED" and the "stopType" attribute is equal to "GRACEFUL". 
            The "gracefulStopTimeout" attribute shall be absent, when the "changeStateTo" 
            attribute is equal to "STOPPED" and the "stopType" attribute is equal to "FORCEFUL". 
            The request shall be treated as if the "stopType" attribute has been set to "FORCEFUL", 
            when the "changeStateTo" attribute is equal to "STOPPED" and the "stopType" attribute 
            is absent.
    required:
      - changeStateTo
    properties:
      changeStateTo:
        description: >
          The desired operational state (i.e. started or stopped) to change
          the VNF to.
        $ref: "../../../definitions/SOL002SOL003VNFLifecycleManagement_def.yaml#/definitions/VnfOperationalStateType"
      stopType:
        description: >
          It signals whether forceful or graceful stop is requested. See note.
        $ref: "#/definitions/StopType"
      gracefulStopTimeout:
        description: >
          The time interval (in seconds) to wait for the VNF to be taken out of service 
          during graceful stop, before stopping the VNF. See note.
        type: integer
      additionalParams:
        description: >
          Additional parameters passed by the NFVO as input to the process,
          specific to the VNF of which the operation status is changed, as
          declared in the VNFD as part of "OperateVnfOpConfig".
        $ref: "../../../definitions/SOL002SOL003_def.yaml#/definitions/KeyValuePairs"

  ChangeExtVnfConnectivityRequest:
    #SOL003 location: 5.5.2.11
    description: >
      This type represents request parameters for the
      "Change external VNF connectivity" operation to modify the external
      connectivity of a VNF instance.
    type: object
    required:
      - extVirtualLinks
    properties:
      extVirtualLinks:
        description: >
          Information about external VLs to change (e.g. connect the VNF to).
          Entries in the list of external VLs that are unchanged need not be supplied as part of this request.
        type: array
        items:
          $ref: "../../../definitions/SOL002SOL003_def.yaml#/definitions/ExtVirtualLinkData"
      vimConnectionInfo:
        description: >
          Information about VIM connections to be used for managing the resources for the VNF instance, or refer to 
          external virtual links. This attribute shall only be supported and may be present if VNF-related resource 
          management in direct mode is applicable. The VNFM shall apply the content of this attribute to the 
          "vimConnectionInfo" attribute of "VnfInstance" according to the rules of JSON Merge Patch (see IETF RFC 7396).
        type: object
        additionalProperties:
          $ref: "../../../definitions/SOL002SOL003_def.yaml#/definitions/VimConnectionInfo"
      additionalParams:
        description: >
          Additional input parameters for the instantiation process, specific
          to the VNF being instantiated, as declared in the VNFD as part of
          "ChangeExtVnfConnectivityOpConfig".".
        $ref: "../../../definitions/SOL002SOL003_def.yaml#/definitions/KeyValuePairs"

  ChangeCurrentVnfPkgRequest:
    description: >
      This type represents request parameters for the "Change current VNF package" 
      operation to replace the VNF package on which a VNF instance is based. 
      It shall comply with the provisions defined in table 5.5.2.11a-1.

      NOTE 1:	The indication of externally-managed internal VLs is needed in case networks 
              have been pre-configured for use with certain VNFs, for instance to ensure 
              that these networks have certain properties such as security or acceleration 
              features, or to address particular network topologies. The present document 
              assumes that externally-managed internal VLs are managed by the NFVO and created 
              towards the VIM.
      NOTE 2:	It is possible to have several ExtManagedVirtualLinkData for the same VNF internal 
              VL in case of a multi-site VNF spanning several VIMs. The set of ExtManagedVirtualLinkData 
              corresponding to the same VNF internal VL shall indicate so by referencing to the same 
              VnfVirtualLinkDesc and externally-managed multi-site VL instance (refer to clause 4.4.1.12).
    type: object
    required:
      - vnfdId
    properties:
      vnfdId:
        description: >
          Identifier of the VNFD which defines the destination VNF Package for the 
          change.
        $ref: "../../../definitions/SOL002SOL003_def.yaml#/definitions/Identifier"
      extVirtualLinks:
        description: >
          Information about external VLs to connect the VNF to. Entries in the list 
          that are unchanged need not be supplied as part of this request.
        type: array
        items:
          $ref: "../../../definitions/SOL002SOL003_def.yaml#/definitions/ExtVirtualLinkData"
      extManagedVirtualLinks:
        description: >
          Information about internal VLs that are managed by the NFVO. See notes 1 and 2.
        type: array
        items:
          $ref: "#/definitions/ExtManagedVirtualLinkData"
      vimConnectionInfo:
        description: >
          Information about VIM connections to be used for managing the resources for the VNF instance, or refer to 
          external virtual links. This attribute shall only be supported and may be present if VNF-related resource 
          management in direct mode is applicable. The VNFM shall apply the content of this attribute to the 
          "vimConnectionInfo" attribute of "VnfInstance" according to the rules of JSON Merge Patch (see IETF RFC 7396).
        type: object
        additionalProperties:
          $ref: "../../../definitions/SOL002SOL003_def.yaml#/definitions/VimConnectionInfo"
      additionalParams:
        description: >
          Additional parameters passed by the NFVO as input to the process, specific 
          to the VNF of which the underlying VNF package is changed, as declared in 
          the VNFD as part of "ChangeCurrentVnfPkgOpConfig".
        $ref: "../../../definitions/SOL002SOL003_def.yaml#/definitions/KeyValuePairs"
      extensions:
        description: >
          If present, this attribute provides modifications to the values of the 
          "extensions" attribute in "VnfInstance", as defined in clause 5.5.2.2.
          Provisions for handling extensions during the operation, and needed passed 
          parameter values in case of conflicts, are defined in clause 5.4.11a.3.1.
        $ref: "../../../definitions/SOL002SOL003_def.yaml#/definitions/KeyValuePairs"
      vnfConfigurableProperties:
        description: >
          If present, this attribute provides modifications to the values of the "vnfConfigurableProperties" attribute 
          in "VnfInstance", as defined in clause 5.5.2.2. Provisions for handling VNF configurable properties during the 
          operation, and needed passed parameter values in case of conflicts, are  defined in clause 5.4.11a.3.1.
        $ref: "../../../definitions/SOL002SOL003_def.yaml#/definitions/KeyValuePairs"

  VnfInfoModificationRequest:
    description: >
      This type represents attribute modifications for an
      "Individual VNF instance" resource, i.e. modifications to a resource
      representation based on the "VnfInstance" data type.
    type: object
    properties:
      vnfInstanceName:
        description: >
          New value of the "vnfInstanceName" attribute in "VnfInstance", or
          "null" to remove the attribute.
        $ref: "../../../definitions/SOL002SOL003_def.yaml#/definitions/String"
      vnfInstanceDescription:
        description: >
          New value of the "vnfInstanceDescription" attribute in
          "VnfInstance", or "null" to remove the attribute.
        $ref: "../../../definitions/SOL002SOL003_def.yaml#/definitions/String"
      vnfPkgId:
        description: >
          New value of the "vnfPkgId" attribute in "VnfInstance".
          The value "null" is not permitted.
        $ref: "../../../definitions/SOL002SOL003_def.yaml#/definitions/Identifier"
      vnfConfigurableProperties:
        description: >
          Modifications of the "vnfConfigurableProperties" attribute in
          "VnfInstance". If present, these modifications shall be applied
          according to the rules of JSON Merge Patch (see IETF RFC 7396).
        $ref: "../../../definitions/SOL002SOL003_def.yaml#/definitions/KeyValuePairs"
      metadata:
        description: >
          Modifications of the "metadata" attribute in "VnfInstance". If
          present, these modifications shall be applied according to the rules
          of JSON Merge Patch (see IETF RFC 7396).
        $ref: "../../../definitions/SOL002SOL003_def.yaml#/definitions/KeyValuePairs"
      extensions:
        description: >
          Modifications of the "extensions" attribute in "VnfInstance". If
          present, these modifications shall be applied according to the rules
          of JSON Merge Patch (see IETF RFC 7396).
        $ref: "../../../definitions/SOL002SOL003_def.yaml#/definitions/KeyValuePairs"
      vimConnectionInfo:
        description: >
          Modifications of the "vimConnectionInfo" attribute. If present, these 
          modifications shall be applied according to the rules of 
          JSON Merge Patch (see IETF RFC 7396 ).
        type: object
        additionalProperties:
          $ref: "../../../definitions/SOL002SOL003_def.yaml#/definitions/VimConnectionInfo"

  VnfInfoModifications:
    description: >
      This type represents attribute modifications that were performed on an "Individual 
      VNF instance" resource. The attributes that can be included consist of those requested 
      to be modified explicitly in the "VnfInfoModificationRequest" data structure, and 
      additional attributes of the "VnfInstance" data structure that were modified implicitly 
      e.g. when modifying the referenced VNF package.
      The "VnfInfoModifications" data type shall comply with the provisions defined in table 
      5.5.2.12a-1.

      NOTE:	If present, this attribute (which depends on the value of the "vnfdId" attribute) 
            was modified implicitly following a request to modify the "vnfdId" attribute, by 
            copying the value of this attribute from the VNFD in the VNF Package identified by 
            the "vnfdId" attribute.
    type: object
    properties:
      vnfInstanceName:
        description: >
          If present, this attribute signals modifications of the
          "vnfInstanceName" attribute in "VnfInstance".
        $ref: "../../../definitions/SOL002SOL003_def.yaml#/definitions/String"
      vnfInstanceDescription:
        description: >
          If present, this attribute signals modifications of the
          "vnfInstanceDescription" attribute in "VnfInstance".
        $ref: "../../../definitions/SOL002SOL003_def.yaml#/definitions/String"
      vnfConfigurableProperties:
        description: >
          If present, this attribute signals modifications of the
          "vnfConfigurableProperties" attribute in "VnfInstance".

          In addition, the provisions in clause 5.7 shall apply.
        $ref: "../../../definitions/SOL002SOL003_def.yaml#/definitions/KeyValuePairs"
      metadata:
        description: >
          If present, this attribute signals modifications of the "metadata"
          attribute in "VnfInstance".
        $ref: "../../../definitions/SOL002SOL003_def.yaml#/definitions/KeyValuePairs"
      extensions:
        description: >
          If present, this attribute signals modifications of the "extensions"
          attribute in "VnfInstance".

          In addition, the provisions in clause 5.7 shall apply.
        $ref: "../../../definitions/SOL002SOL003_def.yaml#/definitions/KeyValuePairs"
      vimConnectionInfo:
        description: >
          If present, this attribute signals modifications the "vimConnectionInfo" 
          attribute array in "VnfInstance".
        type: object
        additionalProperties:
          $ref: "../../../definitions/SOL002SOL003_def.yaml#/definitions/VimConnectionInfo"
      vnfdId:
        description: >
          If present, this attribute signals modifications of the "vnfdId"
          attribute in "VnfInstance".
        $ref: "../../../definitions/SOL002SOL003_def.yaml#/definitions/Identifier"
      vnfProvider:
        description: >
          If present, this attribute signals modifications of the "vnfProvider" attribute 
          in "VnfInstance". See note.
        $ref: "../../../definitions/SOL002SOL003_def.yaml#/definitions/String"
      vnfProductName:
        description: >
          If present, this attribute signals modifications of the "vnfProductName" attribute 
          in "VnfInstance". See note.
        $ref: "../../../definitions/SOL002SOL003_def.yaml#/definitions/String"
      vnfSoftwareVersion:
        description: >
          If present, this attribute signals modifications of the "vnfSoftwareVersion" attribute 
          in "VnfInstance". See note.
        $ref: "../../../definitions/SOL002SOL003_def.yaml#/definitions/Version"
      vnfdVersion:
        description: >
          If present, this attribute signals modifications of the "vnfdVersion" attribute 
          in "VnfInstance". See note.
        $ref: "../../../definitions/SOL002SOL003_def.yaml#/definitions/Version"

  StopType:
    description: >
      * FORCEFUL: The VNFM will stop the VNF instance immediately after accepting 
        the request.
      * GRACEFUL: The VNFM instance will first arrange to take the VNF out of 
        service after accepting the request. Once that operation is successful 
        or once the timer value specified in the "gracefulStopTimeout" attribute
        expires, the VNFM will stop the VNF instance.
    type: string
    enum:
      - FORCEFUL
      - GRACEFUL

  CreateVnfSnapshotRequest:
    description: >
      This type represents request parameters for the "Create VNF Snapshot" 
      LCM operation which takes a snapshot of a VNF instance and populates 
      a previously-created "Individual VNF snapshot" resource with the content 
      of the snapshot.
      It shall comply with the provisions defined in table 5.5.2.21-1.
    type: object
    required:
      - vnfSnapshotResId
    properties:
      vnfSnapshotInfoId:
        description: >
          Identifier of the "Individual VNF snapshot" resource to which the 
          VNF snapshot is to be associated.
        $ref: "../../../definitions/SOL002SOL003_def.yaml#/definitions/Identifier"
      additionalParams:
        description: >
          Additional input parameters for the snapshot creation process, specific 
          for the VNF being “snapshotted”, as declared in the VNFD as part of
          “CreateSnapshotVnfOpConfig”.
        $ref: "../../../definitions/SOL002SOL003_def.yaml#/definitions/KeyValuePairs"
      userDefinedData:
        description: >
          User defined data for the VNF snapshot.
        $ref: "../../../definitions/SOL002SOL003_def.yaml#/definitions/KeyValuePairs"

  CreateVnfSnapshotInfoRequest:
    description: |
      This type represents request parameters for the creation of an "Individual VNF snapshot" 
      resource which can be populated with content obtained by invoking the "Create VNF snapshot" 
      LCM operation or extracted from a VNF snapshot package. It shall comply with the provisions 
      defined in table 5.5.2.20-1.

      NOTE:	The present attribute shall be provided if the "Individual VNF snapshot" resource is 
            requested to be created as part of a VNF snapshot package extraction.
    type: object
    properties:
      vnfSnapshotPkgId:
        description: |
          Identifier of the VNF snapshot package information held by the NFVO. See note.
        $ref: "../../../definitions/SOL002SOL003_def.yaml#/definitions/Identifier"
      vnfSnapshot:
        description: |
          Information about the VNF snapshot, content and/or reference to its content.
        $ref: "#/definitions/VnfSnapshot"

  RevertToVnfSnapshotRequest:
    description: >
      This type represents request parameters for the "Revert to VNF Snapshot" operation.
    type: object
    required:
      - vnfSnapshotInfoId
    properties:
      vnfSnapshotInfoId:
        description: >
          Identifier of the "Individual VNF snapshot" resource with the information of the VNF snapshot 
          to be reverted to.
        $ref: "../../../definitions/SOL002SOL003_def.yaml#/definitions/Identifier"
      additionalParams:
        description: >
          Additional input parameters for the revert to VNF snapshot process, specific for the VNF being 
          “reverted”, as declared in the VNFD as part of “RevertToSnapshotVnfOpConfig”.
        $ref: "../../../definitions/SOL002SOL003_def.yaml#/definitions/KeyValuePairs"

  VnfSnapshotInfoModificationRequest:
    description: |
      This type represents attribute modifications for an "Individual VNF snapshot" resource, i.e. modifications 
      to a resource representation based on the "VnfSnapshotInfo" data type. The attributes of "VnfSnapshotInfo" 
      that can be modified according to the provisions in clause 5.5.2.22 are included in the 
      "VnfSnapshotInfoModificationRequest" data type. The "VnfSnapshotInfoModificationRequest" data type shall 
      comply with the provisions defined in table 5.5.2.24-1.
    type: object
    properties:
      vnfSnapshotPkgId:
        description: |
          New value of the "vnfSnapshotPkgId" attribute in "VnfSnapshotInfo". 
          The value "null" is not permitted.
        $ref: "../../../definitions/SOL002SOL003_def.yaml#/definitions/Identifier"
      vnfSnapshot:
        description: |
          New value of the "vnfSnapshot" attribute in "VnfSnapshotInfo". 
          The value "null" is not permitted.
        $ref: "#/definitions/VnfSnapshot"

  VnfSnapshotInfoModifications:
    description: |
      This type represents attribute modifications that were performed on an "Individual VNF snapshot" 
      resource. The attributes that can be included consist of those requested to be modified explicitly 
      in the "VnfSnapshotInfoModificationRequest" data structure, and additional attributes of the 
      "VnfSnapshotInfo" data structure that were modified implicitly. The "VnfSnapshotInfoModifications" 
      data type shall comply with the provisions defined in table 5.5.2.25-1.
    type: object
    properties:
      vnfSnapshotPkgId:
        description: |
          If present, this attribute signals modifications of the "vnfSnapshotPkgId" attribute in 
          "VnfSnapshotInfo" as defined in clause 5.5.2.22.
        $ref: "../../../definitions/SOL002SOL003_def.yaml#/definitions/Identifier"
      vnfSnapshot:
        description: |
          If present, this attribute signals modifications of the "vnfSnapshot" attribute in 
          "VnfSnapshotInfo" as defined in clause 5.5.2.22.
        $ref: "#/definitions/VnfSnapshot"

  VnfInstance:
    description: >
      This type represents a VNF instance. It shall comply with the provisions defined in table 5.5.2.2-1.

      NOTE:	Clause B.3.2 provides examples illustrating the relationship among the different run-time 
            information elements (CP, VL and link ports) used to represent the connectivity of a VNF.

      NOTE 1:	Modifying the value of this attribute shall not be performed when conflicts exist between 
              the previous and the newly referred VNF package, i.e. when the new VNFD is changed with 
              respect to the previous VNFD in other aspects than merely referencing to other VNF software 
              images. In order to avoid misalignment of the VnfInstance with the current VNF's on-boarded 
              VNF Package, the values of attributes in the VnfInstance that have corresponding attributes 
              in the VNFD shall be kept in sync with the values in the VNFD.
      NOTE 2:	ETSI GS NFV-SOL 001 specifies the structure and format of the VNFD based on TOSCA specifications.
      NOTE 3:	VNF configurable properties are sometimes also referred to as configuration parameters applicable 
              to a VNF. Some of these are set prior to instantiation and cannot be modified if the VNF is instantiated, 
              some are set prior to instantiation (are part of initial configuration) and can be modified later, 
              and others can be set only after instantiation. The applicability of certain configuration may 
              depend on the VNF and the required operation of the VNF at a certain point in time.
      NOTE 4:	Upon creation of the VnfInstance structure, the VNFM shall create and initialize all child attributes 
              of "vnfConfigurableProperties", "metadata" and "extensions" that were declared in the VNFD with a defined 
              initial value. The defined initial values can be declared in the VNFD, and/or, in case of "metadata", 
              obtained from the "CreateVnfRequest" structure. Child attributes of "vnfConfigurableProperties", 
              "metadata" and "extensions" that have no defined initial value shall not be created, in order to be 
              consistent with the semantics of the JSON Merge Patch method (see IETF RFC 7396) that interprets null 
              values as deletion request.
      NOTE 5:	It is possible to have several ExtManagedVirtualLinkInfo for the same VNF internal VL in case of a 
              multi-site VNF spanning several VIMs. The set of ExtManagedVirtualLinkInfo corresponding to the same 
              VNF internal VL shall indicate so by referencing to the same VnfVirtualLinkDesc and externally-managed 
              multi-site VL instance (refer to clause 5.5.3.3).
      NOTE 6:	Even though externally-managed internal VLs are also used for VNF-internal connectivity, they shall 
              not be listed in the "vnfVirtualLinkResourceInfo" attribute as this would be redundant.
    type: object
    required:
      - id
      - vnfdId
      - vnfProvider
      - vnfProductName
      - vnfSoftwareVersion
      - vnfdVersion
      - instantiationState
    properties:
      id:
        description: >
          Identifier of the VNF instance.
        $ref: "../../../definitions/SOL002SOL003_def.yaml#/definitions/Identifier"
      vnfInstanceName:
        description: >
          Name of the VNF instance.
          This attribute can be modified with the PATCH method.
        type: string
      vnfInstanceDescription:
        description: >
          Human-readable description of the VNF instance.
          This attribute can be modified with the PATCH method.
        type: string
      vnfdId:
        description: >
          Identifier of the VNFD on which the VNF instance is based. See note 1.
        $ref: "../../../definitions/SOL002SOL003_def.yaml#/definitions/Identifier"
      vnfProvider:
        description: >
          Provider of the VNF and the VNFD. The value is copied from the VNFD.
        type: string
      vnfProductName:
        description: >
          Name to identify the VNF Product. The value is copied from the VNFD.
        type: string
      vnfSoftwareVersion:
        description: >
          Software version of the VNF. The value is copied from the VNFD.
        $ref: "../../../definitions/SOL002SOL003_def.yaml#/definitions/Version"
      vnfdVersion:
        description: >
          Identifies the version of the VNFD. The value is copied from the VNFD.
        $ref: "../../..//definitions/SOL002SOL003_def.yaml#/definitions/Version"
      vnfConfigurableProperties:
        description: >
          Additional VNF-specific attributes that provide the current values of the configurable 
          properties of the VNF instance.
          
          These attributes represent values that are stored persistently in the VnfInstance structure
          and that correspond to configuration parameters of the VNF instance.
          
          Modifying these attributes affects the configuration of the VNF instance either directly 
          (if the VNF instance is in INSTANTIATED state at the time of the modification) or as part 
          of the subsequent VNF instantiation operation (if the VNF instance is in NOT_INSTANTIATED 
          state at the time of the modification).
          
          Configurable properties referred in these attributes are declared in the VNFD. The declaration 
          of configurable properties in the VNFD can optionally contain the specification of initial values. 
          See notes 2, 3 and 4. The VNFM shall reject requests to write configurable properties that are 
          not declared in the VNFD with a "422 Unprocessable entity" error response as defined in clause 
          6.4 of ETSI GS NFV SOL 013.
          
          These configurable properties include the following standard attributes, which are declared in 
          the VNFD if auto-scaling and/or auto-healing are supported by the VNF: 
          -	isAutoscaleEnabled: If present, the VNF supports auto-scaling. If set to true, auto-scaling 
                                is currently enabled. If set to false, auto-scaling is currently disabled.
          -	isAutohealEnabled: If present, the VNF supports auto-healing. If set to true, auto-healing is 
                               currently enabled. If set to false, auto-healing is currently disabled.

          These configurable properties can be initialized with default values from the VNFD (see note 4).

          Configurable properties can be modified with values passed in the request structures of certain 
          LCM operations, such as the InstantiateVnfRequest structure.
          
          Further, these configurable properties can be created, modified or deleted with the PATCH method.
          In addition, the provisions in clause 5.7 shall apply.
        $ref: "../../../definitions/SOL002SOL003_def.yaml#/definitions/KeyValuePairs"
      vimConnectionInfo:
        description: >
          Information about VIM connections to be used for managing the
          resources for the VNF instance. The keys of the map, each of
          which identifies information about a particular VIM connection,
          are managed by the NFVO and referenced from other data structures
          via the "vimConnectionId" attribute. This attribute shall only
          be supported and present if VNF-related resource management in
          direct mode is pplicable.
          This attribute can be modified with the PATCH method.
        type: object
        additionalProperties:
          $ref: "../../../definitions/SOL002SOL003_def.yaml#/definitions/VimConnectionInfo"
      instantiationState:
        description: >
          The instantiation state of the VNF.
        type: string
        enum:
          - NOT_INSTANTIATED
          - INSTANTIATED
      instantiatedVnfInfo:
        description: >
          Information specific to an instantiated VNF instance. This attribute
          shall be present if the instantiateState attribute value is
          INSTANTIATED.
        type: object
        required:
          - flavourId
          - vnfState
        properties:
          flavourId:
            description: >
              Identifier of the VNF deployment flavour applied to this VNF instance.
            $ref: "../../../definitions/SOL002SOL003_def.yaml#/definitions/IdentifierInVnfd"
          vnfState:
            description: >
              The state of the VNF instance.
            $ref: "../../../definitions/SOL002SOL003VNFLifecycleManagement_def.yaml#/definitions/VnfOperationalStateType"
          scaleStatus:
            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.
              This attribute shall be present if the VNF supports scaling.
              See clause B.2 for an explanation of VNF scaling.
            type: array
            items:
              $ref: "../../../definitions/SOL002SOL003VNFLifecycleManagement_def.yaml#/definitions/ScaleInfo"
          maxScaleLevels:
            description: >
              Maximum allowed scale levels of the VNF, one entry per aspect.
              This attribute shall be present if the VNF supports scaling.
            type: array
            items:
              $ref: "../../../definitions/SOL002SOL003VNFLifecycleManagement_def.yaml#/definitions/ScaleInfo"
          extCpInfo:
            description: >
              Information about the external CPs exposed by the VNF instance. When trunking is enabled,
              the list of entries includes both, external CPs corresponding to parent ports of a trunk,
              and external CPs associated to sub-ports of a trunk.
            type: array
            minItems: 1
            items:
              $ref: "../../../definitions/SOL002SOL003VNFLifecycleManagement_def.yaml#/definitions/VnfExtCpInfo"
          vipCpInfo:
            description: >
              VIP CPs that are part of the VNF instance. Shall be present when that particular VIP CP of the VNFC
              instance is associated to an external CP of the VNF instance.
              May be present otherwise.
            type: array
            minItems: 1
            items:
              $ref: "../../../definitions/SOL002SOL003VNFLifecycleManagement_def.yaml#/definitions/VipCpInfo"
          extVirtualLinkInfo:
            description: >
              Information about the external VLs the VNF instance is connected to.
            type: array
            items:
              $ref: "../../../definitions/SOL002SOL003VNFLifecycleManagement_def.yaml#/definitions/ExtVirtualLinkInfo"
          extManagedVirtualLinkInfo:
            description: >
              Information about the externally-managed internal VLs of the VNF instance. See note 5 and note 6.
            type: array
            items:
              $ref: "#/definitions/ExtManagedVirtualLinkInfo"
          monitoringParameters:
            description: >
              Active monitoring parameters.
            type: array
            items:
              $ref: "../../../definitions/SOL002SOL003VNFLifecycleManagement_def.yaml#/definitions/MonitoringParameter"
          localizationLanguage:
            description: >
              Information about localization language of the VNF (includes e.g.
              strings in the VNFD). The localization languages supported by a VNF
              can be declared in the VNFD, and localization language selection can
              take place at instantiation time.
              The value shall comply with the format defined in IETF RFC 5646.
            type: string
          vnfcResourceInfo:
            description: >
              Information about the virtualised compute and storage resources used
              by the VNFCs of the VNF instance.
            type: array
            items:
              $ref: "#/definitions/VnfcResourceInfo"
          vnfVirtualLinkResourceInfo:
            description: >
              Information about the virtualised network resources used by the VLs of the VNF instance. See note 6.
            type: array
            items:
              $ref: "#/definitions/VnfVirtualLinkResourceInfo"
          virtualStorageResourceInfo:
            description: >
              Information on the virtualised storage resource(s) used as storage for the VNF instance.
            type: array
            items:
              $ref: "#/definitions/VirtualStorageResourceInfo"
      metadata:
        description: >
          Additional VNF-specific attributes that provide metadata describing the VNF instance.
          
          These attributes represent values that are stored persistently in the VnfInstance structure for 
          consumption by functional blocks that invoke the VNF lifecycle management interface. They are not 
          consumed by the VNFM, or the lifecycle management scripts.
          
          Modifying the values of these attributes has no effect on the VNF instance, it only affects the 
          information represented in the VnfInstance structure.
          
          Metadata that the VNF provider foresees are expected to be declared in the VNFD. The declaration 
          of metadata in the VNFD can optionally contain the specification of initial values. See notes 2 and 4. 
          The VNFM shall accept requests to write metadata that are not declared in the VNFD.
          
          These attributes can be initialized with default values from the VNFD (see note 4) or with values 
          passed in the CreateVnfRequest structure (see clause 5.4.2.3.1).
          
          These attributes can be created, modified or removed with the PATCH method.
        $ref: "../../../definitions/SOL002SOL003_def.yaml#/definitions/KeyValuePairs"
      extensions:
        description: >
          Additional VNF-specific attributes that affect the lifecycle management of this VNF instance.
          
          These attributes represent values that are stored persistently in the VnfInstance structure for 
          consumption by the VNFM or the lifecycle management scripts during the execution of VNF lifecycle 
          management operations. 
          
          All extensions that are allowed for the VNF are declared in the VNFD. The declaration of an extension 
          in the VNFD contains information on whether its presence is optional or required, and optionally can 
          specify an initial value. See notes 2 and 4. The VNFM shall reject requests to write extension attributes 
          that are not declared in the VNFD with a "422 Unprocessable entity" error response as defined in clause 
          6.4 of ETSI GS NFV-SOL 013.
          
          Modifying the values of these attributes has no direct effect on the VNF instance; however, the modified 
          attribute values can be considered during subsequent VNF lifecycle management operations, which means that 
          the modified values can indirectly affect the configuration of the VNF instance.
          
          These attributes can be initialized with default values from the VNFD (see note 4).
          
          These attributes can be modified with values passed in the request structures of certain LCM operations, 
          such as the InstantiateVnfRequest structure.
          
          Further, these attributes can be created, modified or deleted with the PATCH method.
          
          In addition, the provisions in clause 5.7 shall apply.
      _links:
        description: >
          Links to resources related to this resource.
        type: object
        required:
          - self
        properties:
          self:
            description: URI of this resource.
            $ref: "../../../definitions/SOL002SOL003_def.yaml#/definitions/Link"
          indicators:
            description: Indicators related to this VNF instance, if applicable.
            $ref: "../../../definitions/SOL002SOL003_def.yaml#/definitions/Link"
          instantiate:
            description: >
              Link to the "Instantiate VNF task" resource, if the related operation
              is possible based on the current status of this VNF instance
              resource (i.e. VNF instance in NOT_INSTANTIATED state).
            $ref: "../../../definitions/SOL002SOL003_def.yaml#/definitions/Link"
          terminate:
            description: >
              Link to the "Terminate VNF task" resource, if the related operation
              is possible based on the current status of this VNF instance
              resource (i.e. VNF instance is in INSTANTIATED state).
            $ref: "../../../definitions/SOL002SOL003_def.yaml#/definitions/Link"
          scale:
            description: >
              Link to the "Scale VNF task" resource, if the related operation is
              supported for this VNF instance, and is possible based on the
              current status of this VNF instance resource (i.e. VNF instance
              is in INSTANTIATED state).
            $ref: "../../../definitions/SOL002SOL003_def.yaml#/definitions/Link"
          scaleToLevel:
            description: >
              Link to the "Scale VNF to level task" resource, if the related
              operation is supported for this VNF instance, and is possible
              based on the current status of this VNF instance resource
              (i.e. VNF instance is in INSTANTIATED state).
            $ref: "../../../definitions/SOL002SOL003_def.yaml#/definitions/Link"
          changeFlavour:
            description: >
              Link to the "Change VNF flavour task" resource, if the related
              operation is supported for this VNF instance, and is possible
              based on the current status of this VNF instance resource
              (i.e. VNF instance is in INSTANTIATED state).
            $ref: "../../../definitions/SOL002SOL003_def.yaml#/definitions/Link"
          heal:
            description: >
              Link to the "Heal VNF task" resource, if the related operation is
              supported for this VNF instance, and is possible based on the
              current status of this VNF instance resource
              (i.e. VNF instance is in INSTANTIATED state).
            $ref: "../../../definitions/SOL002SOL003_def.yaml#/definitions/Link"
          operate:
            description: >
              Link to the "Operate VNF task" resource, if the related operation is
              supported for this VNF instance, and is possible based on the
              current status of this VNF instance resource
              (i.e. VNF instance is in INSTANTIATED state).
            $ref: "../../../definitions/SOL002SOL003_def.yaml#/definitions/Link"
          changeExtConn:
            description: >
              Link to the "Change external VNF connectivity task" resource, if the related
              operation is possible based on the current status of this VNF
              instance resource (i.e. VNF instance is in INSTANTIATED state).
            $ref: "../../../definitions/SOL002SOL003_def.yaml#/definitions/Link"
          createSnapshot:
            description: >
              Link to the "Create VNF snapshot task" resource, if the related operation is
              supported for this VNF instance and is possible based on the current status of
              this VNF instance resource (i.e., VNF instance is in INSTANTIATED state).
            $ref: "../../../definitions/SOL002SOL003_def.yaml#/definitions/Link"
          revertToSnapshot:
            description: >
              Link to the "Revert to VNF snapshot task" resource, if the related operation is
              supported for this VNF instance and is possible based on the current status of