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This page contains description Policy Types for control loops to take a baby step approach from Dublin to Frankfurt retaining a close resemblance to Dublin legacy policy types.

1. Guard Policy Type

1.1 The base schema is defined as below:

Base Policy type definition for onap.policies.controlloop.Guard 
tosca_definitions_version: tosca_simple_yaml_1_0_0
policy_types:
  onap.policies.controlloop.Guard:
    derived_from: tosca.policies.Root
    version: 1.0.0
    description: Base definition of guard Policies for Control Loop Operational Policies
    properties:
        actor:
          type: string
          description: Specifies the Actor
          required: true
        recipe:
          type: string
          description: Specified the Recipe
          required: true
        controlLoopName:
          type: string
          description: An optional specific control loop to apply this guard policy.
          required: false
        target:
          type: string
          description: An optional specific VNF to apply this guard to.
          required: false
        time_range:
          type: tosca.datatypes.TimeInterval
          description: An optional range of time during the day the Min/Max limit is valid for.
          required: false

1.2 onap.policies.controlloop.guard.FrequencyLimiter Policy Type

Policy Typefor Frequency Limiter Guard Policy 
tosca_definitions_version: tosca_simple_yaml_1_0_0
policy_types:
  onap.policies.controlloop.guard.FrequencyLimiter:
    derived_from: onap.policies.controlloop.Guard
    version: 1.0.0
    description: Supports limiting the frequency of actions being taken by a Actor.
    properties:
        time_window:
          type: scalar-unit.time
          description: The time window to count the actions against.
          required: true
        limit:
          type: integer
          description: The limit
          required: true
          constraints:
            - greater_than: 0

1.3 onap.policies.controlloop.guard.Blacklist Policy Type

Policy Type for Blacklist Guard Policies 
tosca_definitions_version: tosca_simple_yaml_1_0_0
policy_types:
  onap.policies.controlloop.guard.Blacklist:
      derived_from: onap.policies.controlloop.Guard
      version: 1.0.0
      description: Supports blacklist of VNF's from performing control loop actions on.
      properties:
        blacklist:
          type: list
          description: List of VNF's
          required: true
          entry_schema:
              type: string

1.4 onap.policies.controlloop.guard.MinMax Policy Type


Policy Type for Min/Max VF Module Policies 
tosca_definitions_version: tosca_simple_yaml_1_0_0
policy_types:
  onap.policies.controlloop.guard.MinMax:
      derived_from: onap.policies.controlloop.Guard
      version: 1.0.0
      description: Supports Min/Max number of VF Modules
      properties:
        min_vf_module_instances:
          type: integer
          required: true
          description: The minimum instances of this VF-Module
        max_vf_module_instances:
          type: integer
          required: false
          description: The maximum instances of this VF-Module

2.0 Operational Policy Type

2.1 Mapping of existing (through El Alto) Policy YAML Operational Definition

Mapping of existing Operational policy to TOSCA Policy Type 
tosca_definitions_version: tosca_simple_yaml_1_0_0
policy_types:
    type: onap.policies.controlloop.Operational
    version: 1.0.0




Example Policy 
tosca_definitions_version: tosca_simple_yaml_1_0_0
topology_template:
   policies:
      -
        operational.scaleout:
           type: onap.policies.controlloop.Operational
           version: 1.0.0
           metadata:
             policy-id: operational.scaleout
           properties:
             controlLoop:
               version: 2.0.0
               controlLoopName: ControlLoop-vDNS-6f37f56d-a87d-4b85-b6a9-cc953cf779b3
               trigger_policy: unique-policy-id-1-scale-up
               timeout: 1200
               abatement: false
             policies:
               - id: unique-policy-id-1-scale-up
                 name: Create a new VF Module
                 description:
                 actor: SO
                 recipe: VF Module Create
                 target:
                   type: VNF
                 payload:
                   requestParameters: '{"usePreload":true,"userParams":[]}'
                   configurationParameters: '[{"ip-addr":"$.vf-module-topology.vf-module-parameters.param[9]","oam-ip-addr":"$.vf-module-topology.vf-module-parameters.param[16]","enabled":"$.vf-module-topology.vf-module-parameters.param[23]"}]'
                 retry: 0
                 timeout: 1200
                 success: final_success
                 failure: final_failure
                 failure_timeout: final_failure_timeout
                 failure_retries: final_failure_retries
                 failure_exception: final_failure_exception
                 failure_guard: final_failure_guard


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