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Day 1: SDC/CLAMP Create a Control Loop in a Service


UML for CLAMP Service Assurance Configuration 
@startuml
title This is the flow for designing, configuring and deploying Control Loops
actor Service_Designer
participant SDC
participant CLAMP
actor Operator
participant DCAE_SCH
participant DCAE_Deployment
participant DCAE_Inventory
participant Policy
participant DCAE_Policy_Handler
autonumber
Service_Designer -> SDC : Create/Test/Certify service, \nwith control loop DCAE flow
SDC -> CLAMP : Blueprint distribution
SDC -> DCAE_SCH : Blueprint distribution
DCAE_SCH -> DCAE_Inventory : Save blueprint
Operator -> CLAMP : Configuration of control loop
CLAMP -> Policy : Create Configuration and Operational Policies 
Policy -> DCAE_Policy_Handler : Configuration Policy
CLAMP -> DCAE_Inventory : Get DCAE Service Id based on Distributed Parameters
note left
Steps 8 and 9 are involved when there is no 
pre-deployment of control loop in DCAE
end note
CLAMP -> DCAE_Deployment : Trigger Deployment
@enduml

TODO: Update UML with correct terminology. Update UML to add SDC Service Distribution

example of policies, blueprints, api calls. etc.


Day N: Control Loop Deployment

Control Loop deployment happens when an instance of a Service is created.


TODO flow diagram



Day N: Runtime Flow of a Control Loop

The following is a control loop message flow, across DCAE, Policy and App-C.  The sections afterward will describe the process for designing, configuring and instantiating this flow.



(1) Output of VES Collector for new PM message 
{
    "event": {
        "commonEventHeader": {
            "startEpochMicrosec": 1500584201765465,
            "sourceId": "Dummy VM UUID - No Metadata available",
            "eventId": "11",
            "reportingEntityId": "No UUID available",
            "internalHeaderFields": {
                "collectorTimeStamp": "Thu, 07 20 2017 08:56:52 GMT"
            },
            "eventType": "HTTP request rate",
            "priority": "Normal",
            "version": 1.2,
            "reportingEntityName": "fwll",
            "sequence": 11,
            "domain": "measurementsForVfScaling",
            "lastEpochMicrosec": 1500584212017216,
            "eventName": "vnfScalingMeasurement",
            "sourceName": "Dummy VM name - No Metadata available"
        },
        "measurementsForVfScalingFields": {
            "cpuUsageArray": [{
                "percentUsage": 0,
                "cpuIdentifier": "cpu1",
                "cpuIdle": 100,
                "cpuUsageSystem": 0,
                "cpuUsageUser": 0
            }],
            "measurementInterval": 10,
            "requestRate": 7832,
            "vNicUsageArray": [{
                "transmittedOctetsDelta": 5680,
                "receivedTotalPacketsDelta": 14,
                "vNicIdentifier": "eth0",
                "valuesAreSuspect": "true",
                "transmittedTotalPacketsDelta": 31,
                "receivedOctetsDelta": 1332
            }],
            "measurementsForVfScalingVersion": 2.1
        }
    }
}
(2) Output of TCA Microservice for Onset Signature 
{
            "closedLoopControlName": "ControlLoop-vCPE-48f0c2c3-a172-4192-9ae3-052274181b6e",
            "version": "1.0.2",
            "requestID": "a20e2073-30b1-4357-893b-f5ed57b66ef0",
            "closedLoopAlarmStart": 1478189220547,
            "closedLoopEventClient": "DCAE_INSTANCE_ID.dcae-tca",
            "target_type": "VNF",
            "target": "generic-vnf.vnf-name",
            "AAI": {
                        "generic-vnf.vnf-name" : "vCPE_Infrastructure_vGMUX_demo_app"
            },
            "from": "DCAE",
            "policyScope": "DCAE",
            "policyName": "DCAE.Config_tca-hi-lo",
            "policyVersion": "v0.0.1",
            "closedLoopEventStatus": "ONSET"
}
(3) Policy to App-C Request 
{
  "body": {
    "input": {
      "common-header": {
        "timestamp": "2017-08-25T21:06:23.037Z",
        "api-ver": "2.00",
        "originator-id": "a20e2073-30b1-4357-893b-f5ed57b66ef0",
        "request-id": "a20e2073-30b1-4357-893b-f5ed57b66ef0",
        "sub-request-id": "1",
        "flags": {}
      },
      "action": "Restart",
      "action-identifiers": {
        "vnf-id": "vCPE_Infrastructure_vGMUX_demo_app"
      }
    }
  },
  "version": "2.0",
  "rpc-name": "restart",
  "correlation-id": "a20e2073-30b1-4357-893b-f5ed57b66ef0-1",
  "type": "request"
}
(4) Response from App-C to Policy 
{
  "body": {
    "output": {
      "common-header": {
        "timestamp": "2017-08-25T21:06:23.037Z",
        "api-ver": "2.00",
        "originator-id": "a20e2073-30b1-4357-893b-f5ed57b66ef0",
        "request-id": "a20e2073-30b1-4357-893b-f5ed57b66ef0",
        "sub-request-id": "1",
        "flags": {}
      },
      "status": {
        "code": 400,
        "message": "Restart Successful"
      }
    }
  },
  "version": "2.00",
  "rpc-name": "restart",
  "correlation-id": "a20e2073-30b1-4357-893b-f5ed57b66ef0-1",
  "type": "response"
}
(6) Output of TCA Microservice for Abate Signature 
{
            "closedLoopControlName": "ControlLoop-vCPE-48f0c2c3-a172-4192-9ae3-052274181b6e",
            "version": "1.0.2",
            "requestID": "0abc0000-b032-4e4b-bd30-88260f444888",
            "closedLoopAlarmStart": 1478189220547,
            "closedLoopAlarmEnd": 1478589220547,
            "closedLoopEventClient": "DCAE_INSTANCE_ID.dcae-tca",
            "target_type": "VNF",
            "target": "generic-vnf.vnf-name",
            "AAI": {
 
            "generic-vnf.vnf-name" : "vCPE_Infrastructure_vGMUX_demo_app"
            },
            "from": "DCAE",
            "policyScope": "DCAE",
            "policyName": "DCAE.Config_tca-hi-lo",
            "policyVersion": "v0.0.1",
            "closedLoopEventStatus": "ABATED"
}


Day N: Runtime Monitoring of a Control Loop

flow diagram







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