ONOS Service

This service is intended to manage ONOSes.

It can:

• push global configuration to ONOS
• install applications
• push application specific configuration

Models

This service is composed by two models:

• ONOSService responsible to hold urls and authentication informations
• ONOSApp represents and ONOS application and track its dependencies (this extend the ServiceInstance model)

This service uses ServiceAttributes and ServiceInstanceAttributes to hold the configuration details.

For more informations about the models, please refer to the xproto definition

Example TOSCA

This is an example TOSCA recipe you can use to install an application and add some configuration to it:

tosca_definitions_version: tosca_simple_yaml_1_0
imports:
  - custom_types/onosapp.yaml
  - custom_types/onosservice.yaml
  - custom_types/serviceinstanceattribute.yaml
description: Configures fabric switches and related ports
topology_template:
  node_templates:
    service#onos:
      type: tosca.nodes.ONOSService
      properties:
        name: onos
        must-exist: true


    # Local app
    dhcp:
      type: tosca.nodes.ONOSApp
      properties:
        name: dhcp
        app_id: org.onosproject.dhcp
      requirements:
        - owner:
            node: service#onos
            relationship: tosca.relationships.BelongsToOne

    # Remote app
    cord-config:
      type: tosca.nodes.ONOSApp
      properties:
        app_id: org.opencord.cord-config
        name: cord-config
        url: https://oss.sonatype.org/content/repositories/public/org/opencord/cord-config/1.4.0-SNAPSHOT/cord-config-1.4.0-20180604.071543-275.oar
        version: 1.4.0.SNAPSHOT
      requirements:
        - owner:
            node: service#onos
            relationship: tosca.relationships.BelongsToOne

    # CORD-Configuration
    cord-config-attr:
      type: tosca.nodes.ServiceInstanceAttribute
      properties:
        name: /onos/v1/network/configuration/apps/org.opencord.olt
        value: >
          {
            "kafka" : {
              "bootstrapServers" : "cord-kafka-kafka.default.svc.cluster.local:9092"
            }
          }
      requirements:
        - service_instance:
            node: cord-config
            relationship: tosca.relationships.BelongsToOne

Synchronization workflow

ONOSService

Anytime an ONOSService model is created/updated, the synchronizer checks for the corresponding ServiceAttributes and if any are found it pushes the configuration to ONOS

ONOSServiceInstance

Anytime an ONOSServiceInstance model is created/updated, the synchronizer checks for the corresponding ServiceInstanceAttributes and if any are found:

• checks for the application dependencies
• if they are not matched defer the synchronization
• if they are matched
• it pushes the configuration to ONOS
• it installs/activates the application in ONOS

ONOS Applications can be activated (if they already present in the container), in that case you just need to provide the app_id, or they can be installed from a remote .oar, in which case you need to also provide an url and a version