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Design


Step 1: Design the Control Loop Flow in SDC (DCAE-Design Studio)

What will be the scope of control loop flows in Casablanca:

  • Which microservices will be used?
  • Will flows contain more than one microservice node?
  • Will microservices be capable of receiving more than one configuration policy?
  • Will the singleton vs. dynamically deployed distrinction be described in the TOSCA?
  • Will collectors be deployed dynamically or statically?
  • Will DCAE Design Studio allow for the piecing together of flows in Casablanca?


Step 2: Generate artifacts

  • Cloudify TOSCA is different from standard TOSCA
  • Many details of deployment are not relevant to CLAMP
  • For these reasons, there should be parallel artifacts: Service Template and Blueprint
    • Service Template is for use by CLAMP and is not Cloudify-specific
    • Based on Service Template, any deployment of the parallel Blueprint should be possible from CLAMP
    • Service Template and Blueprint must define the same inputs
  • Will DMaaP topics be provisioned at deploy time?
    • If a new topic is created, this would require CLAMP dashboard awareness in order to monitor the messages on that topic
    • How will credentials for DMaaP be provisioned?


Example Service Template
Example Blueprint 
#
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# Copyright (c) 2018 AT&T Intellectual Property. All rights reserved.
# =============================================================================
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#      http://www.apache.org/licenses/LICENSE-2.0
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# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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tosca_definitions_version: cloudify_dsl_1_3

description: >
  This blueprint deploys/manages the TCA module as a Docker container

imports:
  - http://www.getcloudify.org/spec/cloudify/3.4/types.yaml
  - https://nexus.onap.org/service/local/repositories/raw/content/org.onap.dcaegen2.platform.plugins/R2/k8splugin/1.1.0/k8splugin_types.yaml
  - https://nexus.onap.org/service/local/repositories/raw/content/org.onap.dcaegen2.platform.plugins/R2/dcaepolicyplugin/2.3.0/dcaepolicyplugin_types.yaml

inputs:
  aaiEnrichmentHost:
    type: string
    default: "aai.onap.svc.cluster.local"
  aaiEnrichmentPort:
    type: string
    default: "8443"
  enableAAIEnrichment:
    type: string
    default: true
  dmaap_host:
    type: string
    default: message-router.onap.svc.cluster.local
  dmaap_port:
    type: string
    default: "3904"
  enableRedisCaching:
    type: string
    default: false
  redisHosts:
    type: string
    default: dcae-redis.onap.svc.cluster.local:6379
  tag_version:
    type: string
    default: "nexus3.onap.org:10001/onap/org.onap.dcaegen2.deployments.tca-cdap-container:1.0.0"
  consul_host:
    type: string
    default: consul-server.onap.svc.cluster.local
  consul_port:
    type: string
    default: "8500"
  cbs_host:
    type: string
    default: "config-binding-service.dcae.svc.cluster.local"
  cbs_port:
    type: string
    default: "10000"
  policy_id:
    type: string
    default: "none"
  external_port:
    type: string
    description: Kubernetes node port on which CDAPgui is exposed
    default: "32010"

node_templates:
  tca_k8s:
    type: dcae.nodes.ContainerizedServiceComponent
    relationships:
      - target: tca_policy
        type: cloudify.relationships.depends_on
    properties:
        service_component_type: 'dcaegen2-analytics-tca'
        application_config: {}
        docker_config: {}
        image:
          get_input: tag_version
        log_info:
          log_directory: "/opt/app/TCAnalytics/logs"
        application_config:
            app_config:
                appDescription: DCAE Analytics Threshold Crossing Alert Application
                appName: dcae-tca
                tcaAlertsAbatementTableName: TCAAlertsAbatementTable
                tcaAlertsAbatementTableTTLSeconds: '1728000'
                tcaSubscriberOutputStreamName: TCASubscriberOutputStream
                tcaVESAlertsTableName: TCAVESAlertsTable
                tcaVESAlertsTableTTLSeconds: '1728000'
                tcaVESMessageStatusTableName: TCAVESMessageStatusTable
                tcaVESMessageStatusTableTTLSeconds: '86400'
                thresholdCalculatorFlowletInstances: '2'
            app_preferences:
                aaiEnrichmentHost:
                    get_input: aaiEnrichmentHost
                aaiEnrichmentIgnoreSSLCertificateErrors: 'true'
                aaiEnrichmentPortNumber: '8443'
                aaiEnrichmentProtocol: https
                aaiEnrichmentUserName: DCAE
                aaiEnrichmentUserPassword: DCAE
                aaiVMEnrichmentAPIPath: /aai/v11/search/nodes-query
                aaiVNFEnrichmentAPIPath: /aai/v11/network/generic-vnfs/generic-vnf
                enableAAIEnrichment:
                    get_input: enableAAIEnrichment
                enableRedisCaching:
                    get_input: enableRedisCaching
                redisHosts:
                    get_input: redisHosts
                enableAlertCEFFormat: 'false'
                publisherContentType: application/json
                publisherHostName:
                    get_input: dmaap_host
                publisherHostPort:
                    get_input: dmaap_port
                publisherMaxBatchSize: '1'
                publisherMaxRecoveryQueueSize: '100000'
                publisherPollingInterval: '20000'
                publisherProtocol: http
                publisherTopicName: unauthenticated.DCAE_CL_OUTPUT
                subscriberConsumerGroup: OpenDCAE-c12
                subscriberConsumerId: c12
                subscriberContentType: application/json
                subscriberHostName:
                    get_input: dmaap_host
                subscriberHostPort:
                    get_input: dmaap_port
                subscriberMessageLimit: '-1'
                subscriberPollingInterval: '30000'
                subscriberProtocol: http
                subscriberTimeoutMS: '-1'
                subscriberTopicName: unauthenticated.SEC_MEASUREMENT_OUTPUT
                tca_policy: '{"domain":"measurementsForVfScaling","metricsPerEventName":[{"eventName":"vFirewallBroadcastPackets","controlLoopSchemaType":"VNF","policyScope":"DCAE","policyName":"DCAE.Config_tca-hi-lo","policyVersion":"v0.0.1","thresholds":[{"closedLoopControlName":"ControlLoop-vFirewall-d0a1dfc6-94f5-4fd4-a5b5-4630b438850a","version":"1.0.2","fieldPath":"$.event.measurementsForVfScalingFields.vNicUsageArray[*].receivedTotalPacketsDelta","thresholdValue":300,"direction":"LESS_OR_EQUAL","severity":"MAJOR","closedLoopEventStatus":"ONSET"},{"closedLoopControlName":"ControlLoop-vFirewall-d0a1dfc6-94f5-4fd4-a5b5-4630b438850a","version":"1.0.2","fieldPath":"$.event.measurementsForVfScalingFields.vNicUsageArray[*].receivedTotalPacketsDelta","thresholdValue":700,"direction":"GREATER_OR_EQUAL","severity":"CRITICAL","closedLoopEventStatus":"ONSET"}]},{"eventName":"vLoadBalancer","controlLoopSchemaType":"VM","policyScope":"DCAE","policyName":"DCAE.Config_tca-hi-lo","policyVersion":"v0.0.1","thresholds":[{"closedLoopControlName":"ControlLoop-vDNS-6f37f56d-a87d-4b85-b6a9-cc953cf779b3","version":"1.0.2","fieldPath":"$.event.measurementsForVfScalingFields.vNicUsageArray[*].receivedTotalPacketsDelta","thresholdValue":300,"direction":"GREATER_OR_EQUAL","severity":"CRITICAL","closedLoopEventStatus":"ONSET"}]},{"eventName":"Measurement_vGMUX","controlLoopSchemaType":"VNF","policyScope":"DCAE","policyName":"DCAE.Config_tca-hi-lo","policyVersion":"v0.0.1","thresholds":[{"closedLoopControlName":"ControlLoop-vCPE-48f0c2c3-a172-4192-9ae3-052274181b6e","version":"1.0.2","fieldPath":"$.event.measurementsForVfScalingFields.additionalMeasurements[*].arrayOfFields[0].value","thresholdValue":0,"direction":"EQUAL","severity":"MAJOR","closedLoopEventStatus":"ABATED"},{"closedLoopControlName":"ControlLoop-vCPE-48f0c2c3-a172-4192-9ae3-052274181b6e","version":"1.0.2","fieldPath":"$.event.measurementsForVfScalingFields.additionalMeasurements[*].arrayOfFields[0].value","thresholdValue":0,"direction":"GREATER","severity":"CRITICAL","closedLoopEventStatus":"ONSET"}]}]}'
        service_component_type: dcaegen2-analytics_tca
    interfaces:
      cloudify.interfaces.lifecycle:
        start:
          inputs:
            envs:
                DMAAPHOST:
                    { get_input: dmaap_host }
                DMAAPPORT:
                    { get_input: dmaap_port }
                DMAAPPUBTOPIC: "unauthenticated.DCAE_CL_OUTPUT"
                DMAAPSUBTOPIC: "unauthenticated.SEC_MEASUREMENT_OUTPUT"
                AAIHOST:
                    { get_input: aaiEnrichmentHost }
                AAIPORT:
                    { get_input: aaiEnrichmentPort }
                CONSUL_HOST:
                    { get_input: consul_host }
                CONSUL_PORT:
                    { get_input: consul_port }
                CBS_HOST:
                    { get_input: cbs_host }
                CBS_PORT:
                    { get_input: cbs_port }
                CONFIG_BINDING_SERVICE: "config_binding_service"
            ports:
              - concat: ["11011:", { get_input: external_port }]
  tca_policy:
    type: dcae.nodes.policy
    properties:
      policy_id:
           get_input: policy_id
Example Policy TOSCA Model


Step 3: Distribute artifacts

The artifact distribution must be done from SDC to CLAMP (see CLAMP videos), in order to distribute the Blueprint and service/VF associated.

Step 4: CLAMP Processes artifact

Parsing of the SDC notification is done by CLAMP and is based on string patterns found in the Blueprint.

Only Holmes and TCA are currently supported by default, but this can be customized by the Clamp config files.

The default file is bundled in the JAR: src/main/resources/clds/templates/blueprint-parser-mapping.json

But this can be overridden by specifying the spring config "clamp.config.sdc.blueprint.parser.mapping" in clamp.env for docker-compose (set by default to  "classpath:/clds/blueprint-parser-mapping.json")

Configure


How will this be affected by changes in Policy Lifecycle APIs?  https://wiki.onap.org/display/DW/Policy+Platform+API

Deploy


Update


Suspend


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