etsi-nfv-vnf.yang

               VnfLcmOperationsConfiguration information element";
          }
        }

        list affinity-or-anti-affinity-group {
          key "id";
          description
            "The AffinityOrAntiAffinityGroup describes the affinity
             or anti-affinity relationship applicable between the
             virtualization containers to be created based on
             different VDUs, or between internal VLs to be created
             based on different VnfVirtualLinkDesc(s).

             Per VNF, the affinity/anti-affinity rules defined using
             this information element, using the
             LocalAffinityOrAntiAffinityRule information element, and
             using the placement constraints in the
             GrantLifecycleOperation as defined in ETSI GS NFV-IFA
             007 [i.3] should be conflict-free. In case of conflicts,
             the placement constraints in the
             GrantLifecycleOperation shall take precedence.";

          reference
            "GS NFV IFA011: Section 7.1.8.2 VnfDf information
             element";

          leaf id {
            type string;
            description
              "Identifies an affinity or anti-affinity group to which
               the affinity or anti-affinity rule applies.";
            reference
              "GS NFV IFA011: Section 7.1.8.12
               AffinityOrAntiAffinityGroup information element";
          }

          leaf type {
            mandatory true;
            type affinity-type;
            description
              "Specifies whether the rule is an affinity rule or an
               anti-affinity rule.";
            reference
              "GS NFV IFA011: Section 7.1.8.12
               AffinityOrAntiAffinityGroup information element";
          }

          leaf scope {
            mandatory true;
            type affinity-scope;
            description
              "Specifies the scope of the rule, possible values are
               'NFVI-PoP', 'Zone', 'ZoneGroup', 'NFVI-node'.";
            reference
              "GS NFV IFA011: Section 7.1.8.12
               AffinityOrAntiAffinityGroup information element";
          }
        }

        list indicator {
          key "id";

          leaf id {
            type string;
            description
              "Unique identifier.";
            reference
              "GS NFV IFA011: Section 7.1.11.2 VnfIndicator
               information element";
          }

          leaf name {
            type string;
            description
              "The human readable name of the VnfIndicator.";
            reference
              "GS NFV IFA011: Section 7.1.11.2 VnfIndicator
               information element";
          }

          leaf indicator-value {
            type string;
            description
              "Defines the allowed values or value ranges of this
               indicator.";
            reference
              "GS NFV IFA011: Section 7.1.11.2 VnfIndicator
               information element";
          }

          leaf source {
            type enumeration {
              enum vnf;
              enum em;
              enum both;
            }
            description
              "Describe the source of the indicator. The possible
               values are:
               • VNF.
               • EM.
               • Both.

               This tells the consumer where to send the subscription
               request.";
            reference
              "GS NFV IFA011: Section 7.1.11.2 VnfIndicator
               information element";
          }

          description
            "Declares the VNF indicators that are supported by this
             VNF (specific to this DF).";
          reference
            "GS NFV IFA011: Section 7.1.8.2 VnfDf information
             element";
        }

        list supported-vnf-interfaces {
          key "name";

          leaf name {
            type enumeration {
              enum vnf-configuration;
              enum vnf-indicator;
            }
            description
              "Identifies an interface produced by the VNF. Valid
               values:
               - VNF_CONFIGURATION
               - VNF_INDICATOR";
            reference
              "GS NFV IFA011: Section 7.1.8.16 VnfInterfaceDetails
               information element";
          }

          leaf-list cpd-id {
            type leafref {
              path "../../../ext-cpd/id";
            }
            description
              "References one or more CPDs from which to instantiate
               external CPs through which interface endpoints on the
               VNF side can be reached by the VNFM.";
            reference
              "GS NFV IFA011: Section 7.1.8.16 VnfInterfaceDetails
               information element";
          }

          list interface-details {
            key "key";

            leaf key {
              type string;
            }

            leaf value {
              type string;
            }
          }

          description
            "Indicates which interfaces the VNF produces and provides
             additional details on how to access the interface
             endpoints.";
          reference
            "GS NFV IFA011: Section 7.1.8.2 VnfDf information
             element";
        }

        list monitoring-parameter {
          key "id";

          description
            "Defines the virtualised resources monitoring parameters
             on VNF level.";
          reference
            "GS NFV IFA011: Section 7.1.8.2 VnfDf information
             element";

          leaf id {
            type string;
            description
              "Unique identifier of the monitoring parameter.";
            reference
              "GS NFV IFA011: Section 7.1.11.3 MonitoringParameter
               information element";
          }
          uses monitoring-parameter;
        }

        list scaling-aspect {
          key "id";

          description
            "The scaling aspects supported by this DF of the VNF.
             scalingAspect shall be present if the VNF supports
             scaling.";
          reference
            "GS NFV IFA011: Section 7.1.8.2 VnfDf information
             element";

          leaf id {
            type string;
            description
              "Unique identifier of this aspect in the VNFD.";
            reference
              "GS NFV IFA011: Section 7.1.10.2 ScalingAspect
               information element";
          }
          leaf name {
            type string;
            description
              "Human readable name of the aspect.";
            reference
              "GS NFV IFA011: Section 7.1.10.2 ScalingAspect
               information element";
          }
          leaf description {
            type string;
            description
              "Human readable description of the aspect.";
            reference
              "GS NFV IFA011: Section 7.1.10.2 ScalingAspect
               information element";
          }
          leaf max-scale-level {
            type uint32 {
              range "1..max";
            }
            description
              "The maximum scaleLevel for total number of scaling
               steps that can be applied w.r.t. this aspect. The
               value of this attribute corresponds to the number of
               scaling steps can be applied to this aspect when
               scaling it from the minimum scale level (i.e. 0) to the
               maximum scale level defined by this attribute.";
            reference
              "GS NFV IFA011: Section 7.1.10.2 ScalingAspect
               information element";
          }

          container aspect-delta-details {
            list deltas {
              key "id";
              min-elements 1;

              leaf id {
                type string;
                description
                  "Identifier of this scaling delta.";
                reference
                  "GS NFV IFA011: Section 7.1.10.4 ScalingDelta
                   information element";
              }

              list vdu-delta {
                key "id";

                leaf id {
                  type leafref {
                    path "/nfv/vnfd/vdu/id";
                  }
                  description
                    "Uniquely identifies a VDU.";
                  reference
                    "GS NFV IFA011: Section 7.1.8.9 VduLevel
                     information element";
                }

                leaf number-of-instances {
                  type uint32 {
                    range "0..max";
                  }
                  description
                    "Number of instances of VNFC based on this VDU to
                     deploy for an instantiation level or for a
                     scaling delta. Shall be zero or greater.";
                  reference
                    "GS NFV IFA011: Section 7.1.8.9 VduLevel
                     information element";
                }
                description
                  "The number of VNFC instances based on particular
                   VDUs to be created or removed.";
                reference
                  "GS NFV IFA011: Section 7.1.10.4 ScalingDelta
                   information element";
              }

              list virtual-link-bit-rate-delta {
                key "id";

                leaf id {
                  type string;
                  description
                    "Uniquely identifies a VnfVirtualLinkDesc.";
                  reference
                    "GS NFV IFA011: Section 7.1.10.5
                     VirtualLinkBitRateLevel information element";
                }

                container bit-rate-requirements {
                  leaf root {
                    type uint32;
                    units bits/sec;
                    mandatory true;
                    description
                      "Throughput requirement of the link (e.g.
                       bitrate of E-Line, root bitrate of E-Tree,
                       aggregate capacity of E-LAN).";
                    reference
                      "GS NFV IFA011: Section 7.1.8.6
                       LinkBitrateRequirements information element";
                  }

                  leaf leaf {
                    type uint32;
                    units bits/sec;
                    description
                      "Throughput requirement of leaf connections to
                       the link when applicable to the connectivity
                       type (e.g. for E-Tree and E-LAN branches).";
                    reference
                      "GS NFV IFA011: Section 7.1.8.6
                       LinkBitrateRequirements information element";
                  }
                  description
                    "Bitrate requirements for an instantiation level
                     or bitrate delta for a scaling step.";
                  reference
                    "GS NFV IFA011: Section 7.1.10.5
                     VirtualLinkBitRateLevel information element";
                }
                description
                  "The bitrate to be added or removed to virtual links
                   created from particular virtual link descriptors.";
                reference
                  "GS NFV IFA011: Section 7.1.10.4 ScalingDelta
                   information element";
              }
              description
                "Declares different scaling deltas, each of which is
                 applied for one or more scaling steps of this
                 aspect.";
              reference
                "GS NFV IFA011: Section 7.1.10.3 AspectDeltaDetails
                 information element";
            }

            leaf step-deltas {
              type leafref {
                path "../deltas/id";
              }
              description
                "Identifiers of the individual scaling deltas to be
                 applied for the subsequent scaling steps of this
                 aspect. The first entry in the array shall correspond
                 to the first scaling step (between scale levels 0 to
                 1) and the last entry in the array shall correspond
                 to the last scaling step (between maxScaleLevel-1
                 and maxScaleLevel).

                 Each referenced scaling delta shall be declared in
                 the 'deltas' attribute.";
              reference
                "GS NFV IFA011: Section 7.1.10.3 AspectDeltaDetails
                 information element";
            }
            description
              "A specification of the deltas in terms of number of
               instances of VNFCs and virtual link bit rates that
               correspond to the scaling steps of this aspect. A
               cardinality of zero indicates that this mapping has to
               be specified in a lifecycle management script or be
               otherwise known to the VNFM. The information in this
               attribute, if provided, shall be consistent with the
               information provided in the 'InstantiationLevel'
               information element. If this attribute is provided, it
               shall be provided for all scaling aspects.";
            reference
              "GS NFV IFA011: Section 7.1.10.2 ScalingAspect
               information element";
          }
        }
      }

      container configurable-properties {
        description
          "Describes the configurable properties of the VNF
           (e.g. related to auto scaling and auto healing).";
        reference
          "GS NFV IFA011: Section 7.1.2 VNFD information element";

        leaf is-auto-scalable-enabled {
          type boolean;
          description
            "It permits to enable (TRUE) / disable (FALSE) the
             auto-scaling functionality.";
          reference
            "GS NFV IFA011: Section 7.1.12 VnfConfigurableProperties
             information element";
        }

        leaf is-auto-heal-enabled {
          type boolean;
          description
            "It permits to enable (TRUE) / disable (FALSE) the
             auto-healing functionality.";
          reference
            "GS NFV IFA011: Section 7.1.12 VnfConfigurableProperties
             information element";
        }

        list additional-configurable-property {
          key "key";
          leaf key {
            type string;
          }
          leaf value {
            type string;
          }
          description
            "It provides VNF specific configurable properties that can
             be modified using the ModifyVnfConfiguration operation.";
          reference
            "GS NFV IFA011: Section 7.1.12 VnfConfigurableProperties
             information element";
        }
      }

      container modifiable-attributes {
        description
          "Describes the modifiable attributes of the VNF.";
        reference
          "GS NFV IFA011: Section 7.1.2 VNFD information element";

        leaf-list extension {
          type string;
          description
            "Additional VNF-specific attributes of VnfInfo that
             affect the lifecycle management of a VNF instance and
             that are writeable.

             For each VNF instance, these attributes are stored
             persistently by the VNFM and can be queried and
             modified through the VNFM.

             These attributes are intended to be consumed by the
             VNFM or by the lifecycle management scripts during the
             execution of VNF lifecycle management operations.

             Modifying these values has no direct effect on the VNF
             instance; however, modified 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.";
          reference
            "GS NFV IFA011: Section 7.1.14 VnfInfoModifiableAttributes
             information element";
        }
        leaf-list metadata {
          type string;
          description
            "Additional VNF-specific attributes of VnfInfo that are
             writeable and that provide metadata describing the VNF
             instance.

             For each VNF instance, these attributes are stored
             persistently by the VNFM and can be queried and modified
             through the VNFM.

             These attributes are intended to provide information to
             functional blocks external to the VNFM and will not be
             used by the VNFM or the VNF lifecycle management
             scripts when executing lifecycle management operations.

             Modifying these attributes has no effect on the VNF
             instance. It only affects the attribute values stored by
             the VNFM.";
          reference
            "GS NFV IFA011: Section 7.1.14 VnfInfoModifiableAttributes
             information element";
        }
      }

      list lifecycle-management-script {
        key "event";
        description
          "Includes a list of events and corresponding management
           scripts performed for the VNF.";
        reference
          "GS NFV IFA011: Section 7.1.2 VNFD information element";

        leaf event {
          type internal-lifecycle-management-script-event;
          description
            "Describes VNF lifecycle event(s) or an external stimulus
             detected on a VNFM reference point.";
          reference
            "GS NFV IFA011: Section 7.1.13 LifeCycleManagementScript
             information element";
        }
        leaf-list lcm-transition-event {
          type string;
          description
            "Describes the transition VNF lifecycle event(s) that
             cannot be mapped to any of the enumerated values
             defined for the event attribute.";
          reference
            "GS NFV IFA011: Section 7.1.13 LifeCycleManagementScript
             information element";
        }
        leaf script {
          type string;
          description
            "Includes a VNF LCM script (e.g. written in a DSL as
             specified in requirement VNF_PACK.LCM.001) triggered to
             react to one of the events listed in the event
             attribute.";
          reference
            "GS NFV IFA011: Section 7.1.13 LifeCycleManagementScript
             information element";
        }
        leaf script-dsl {
          type string;
          description
            "Defines the domain specific language (i.e. the type) of
             script that is provided. Types of scripts could include
             bash, python, etc.";
          reference
            "GS NFV IFA011: Section 7.1.13 LifeCycleManagementScript
             information element";
        }
        list script-input {
          key "key";
          leaf key {
            type string;
          }
          leaf value {
            type string;
          }
          description
            "Array of KVP requirements with the key as the parameter
             name and the value as the parameter that need to be
             passed as an input to the script.";
          reference
            "GS NFV IFA011: Section 7.1.13 LifeCycleManagementScript
             information element";
        }
      }

      list element-group {
        key "id";
        description
          "Describes the associated elements of a VNFD for a certain
           purpose during VNF lifecycle management.";
        reference
          "GS NFV IFA011: Section 7.1.2 VNFD information element";

        leaf id {
          type string;
          description
            "Unique identifier of this group in the VNFD.";
          reference
            "GS NFV IFA011: Section 7.1.4 VnfdElementGroup
             information element";
        }
        leaf description {
          type string;
          description
            "Human readable description of the group.";
          reference
            "GS NFV IFA011: Section 7.1.4 VnfdElementGroup
             information element";
        }
        leaf-list vdu {
          type leafref {
            path "../../nfv:vdu/nfv:id";
          }
          description
            "References to Vdus that are part of this group.";
          reference
            "GS NFV IFA011: Section 7.1.4 VnfdElementGroup
             information element";
        }
        leaf-list virtual-link-desc {
          type leafref {
            path "../../nfv:int-virtual-link-desc/nfv:id";
          }
          description
            "References to VnfVirtualLinkDesc that are part of this
             group.";
          reference
            "GS NFV IFA011: Section 7.1.4 VnfdElementGroup
             information element";
        }
      }

      list indicator {
        key "id";
        description
          "Declares the VNF indicators that are supported by this
           VNF.";
        reference
          "GS NFV IFA011: Section 7.1.2 VNFD information element";

        leaf id {
          type string;
          description
            "Unique identifier";
          reference
            "GS NFV IFA011: Section 7.1.11.2 VnfdIndicator
             information element";
        }
        leaf name {
          type string;
          description
            "The human readable name of the VnfIndicator.";
          reference
            "GS NFV IFA011: Section 7.1.11.2 VnfdIndicator
             information element";
        }
        leaf-list indicator-value {
          type string;
          description
            "Defines the allowed values or value ranges of this
             indicator.";
          reference
            "GS NFV IFA011: Section 7.1.11.2 VnfdIndicator
             information element";
        }
        leaf source {
          type enumeration {
            enum "vnf";
            enum "em";
            enum "both";
          }
          description
            "Describe the source of the indicator. The possible values
             are:
             • VNF.
             • EM.
             • Both.
             This tells the consumer where to send the subscription
             request.";
          reference
            "GS NFV IFA011: Section 7.1.11.2 VnfdIndicator
             information element";
        }
      }

      leaf-list auto-scale {
        type string;
        description
          "Rule that determines when a scaling action needs to be
           triggered on a VNF instance e.g. based on certain VNF
           indicator values or VNF indicator value changes or a
           combination of VNF indicator value(s) and monitoring
           parameter(s).";
        reference
          "GS NFV IFA011: Section 7.1.2 VNFD information element";
      }
    }
  }
}