tosca_definitions_version: tosca_simple_profile_for_nfv_1_0_0

description: sample-tosca-vnfd-scaling

metadata:
  template_name: sample-tosca-vnfd-scaling

topology_template:
  node_templates:
    VDU1:
      type: tosca.nodes.nfv.VDU.Tacker
      properties:
        image: cirros-0.3.4-x86_64-uec
        mgmt_driver: noop
        availability_zone: nova
        flavor: m1.tiny
        metadata: {metering.vnf: SG1}

    CP1:
      type: tosca.nodes.nfv.CP.Tacker
      properties:
        management: true
        anti_spoofing_protection: false
      requirements:
        - virtualLink:
            node: VL1
        - virtualBinding:
            node: VDU1

    VL1:
      type: tosca.nodes.nfv.VL
      properties:
        network_name: net_mgmt
        vendor: Tacker

  policies:
    - SP1:
        type: tosca.policies.tacker.Scaling
        properties:
          increment: 1
          cooldown: 60
          min_instances: 1
          max_instances: 3
          default_instances: 2
          targets: [VDU1]

    - vdu_cpu_usage_monitoring_policy:
        type: tosca.policies.tacker.Alarming
        triggers:
            vdu_hcpu_usage_scaling_out:
                event_type:
                    type: tosca.events.resource.utilization
                    implementation: ceilometer
                metrics: cpu_util
                condition:
                    threshold: 50
                    constraint: utilization greater_than 50%
                    period: 600
                    evaluations: 1
                    method: avg
                    comparison_operator: gt
                metadata: SG1
                actions: [SP1]

            vdu_lcpu_usage_scaling_in:
                event_type:
                    type: tosca.events.resource.utilization
                    implementation: ceilometer
                metrics: cpu_util
                condition:
                    threshold: 10
                    constraint: utilization less_than 10%
                    period: 600
                    evaluations: 1
                    method: avg
                    comparison_operator: lt
                metadata: SG1
                actions: [SP1]