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OOM(ONAP Operations Manager) needs to support configurable deployment options of ONAP, allow operators to choose and configure the deployment layout and choose technologies used for running ONAP. TOSCA allows modeling ONAP services, all of their components, and to model needed infrastructure components, such as Kuberetenes and OpenStack, and then to match the services with the desired infrastructure to run the ONAP services.


(Example ONAP Service Modeling With Kuberentes and OpenStack)


WHAT IS TOSCA 

Topology and Orchestration Specification for Cloud Applications (TOSCA), is an OASIS standard language to describe a topology of cloud based web services, their components, relationships, and the processes that manage them. The TOSCA standard includes specifications to describe processes that create or modify services. TOSCA allows using a descriptive DSL to drive orchestration base the application declarative model.


WHAT IS Cloudfiy 

Cloudify is an open source cloud orchestration framework. Cloudify is a model-driven orchestrator, it enables modeling applications and services using a TOSCA based DSL, and automates the applications' entire life cycle, including deployment on any cloud or data center environment, monitoring all aspects of a deployed application, detecting issues and failure, manually or automatically remediating such issues, and performing ongoing maintenance tasks.


WHAT IS Kubernetes

Kubernetes is an open-source system for automating deployment, scaling, and management of containerized applications. It aims to provide a "platform for automating deployment, scaling, and operations of application containers across clusters of hosts". It supports a range of container tools, including Docker.


WHAT IS Model-driven Orchestration

Model driven orchestration allows modeling of services and applications using a declarative and descriptive language, then to operate the application using the model. This includes deployment of the application, healing failures, scaling and others. Instead of executing manually crafted workflows, the orchestrator creates dynamic execution workflow graph, based on the application model. Each node of the graph triggers a corresponding lifecycle operation execution, while the orchestrator keeps track and stores state in a context object allowing passing information from one operation to another. 


  • Define reusable TOSCA node types. Each type can declare the interfaces for its lifecycle operations.
  • Create a TOSCA template YAML. The template describes the components, services and all of their dependencies and relationships. 
  • Cloudify Orchestrator creates a deployment graph, at run time. Executing the Install workflow traverses thru the graph, and executes relevant lifecycle operation interfaces.





ONAP Architecture with Kuberentes and OpenStack 

TOSCA Base ONAP OOM Release 1 is deployed in Kubrentes PODs, that are run on OpenStack VM. 



ONAP OOM TOSCA Models


TOSCA to model and orchestrate all ONAP services, in release 1 we lege, with all of their components, and then 


TOSCA Model to deploy Kuberentes on OpenStack

TOSCA Model to deploy ONAP on Kuberentes


ONAP Cloudfy TOSCA Blueprint 


How To (Deploy ONAP on Kubernetes using Clouidfy )

create a deployment from the TOSCA template 



Cloudify creates VMs on OpenStack  (TOSCA blueprint).

Cloudify utilizes two TOSCA blueprints, the first creates the cloud resources and deploy K8s and the second is a TOSCA blueprint deployes the ONAP services (see figure below)

Cloudfiy Deploys Kuberenetes on OpenStack VMS (TOSCA blueprint)

Cloudfioy creates a POD (TOSCA blueprint)

Cloudify Deploys ONAP on POD (TOSCA blueprint)



JIRA Track Progress 

OOM-46 - Getting issue details... STATUS




OOM Cloudify Release 1 - Amsterdam

  1. Use TOSCA to provision OpenStack VMs
  2. Use TOSCA to deploy Kuberentes
  3. Use TOSCA to deploy ONAP services on Kubernetes
    1. DMaaP
    2. MSB
    3. AAF
    4. VF-C
    5. Multi-VIM
    6. DCAE
    7. AAI
    8. APPC
    9. MSO
    10. Policy
    11. SDC
    12. VID
    13. Holmes
    14. CLAMP

  4. Support multiple deployments of ONAP(Test,QA, Prod) from same blueprint 


OOM Cloudify Roadmap 

Create reusable TOSCA node type for each ONAP service

Accept custom user inputs for ONAP services' configuration

Test ONAP on bare metal with TOSCA

Model ONAP inner service dependencies.

Configurable Hybrid deployment (some of ONAP services on cloud, and others on bare-metal/or other clouds)

ONAP services placement

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