RE: [tosca] Groups - VNF_DF_instantiationLevels_policy_type.docx uploaded

[Priya T G <priya.g@netcracker.com>]

Chris, All,

 

To simplify the Instantiation Level issue, can we have an enhancement in the definition of node type grammar as below?

 

node_types:

  some_type:

     properties:

       target_node:

         type: string

            constraints:

              - target: [ NODE_TEMPLATE, NODE_INSTANCE, POLICY, GROUP]

 

Then, describe Instantiation Level as a policy –

 

- InstantiationLevel1:

    type: tosca.policies.nfv.instantiationlevel        

     properties:          

       description: 

       isDefault: true          

       vduLevels:            

         vdu_1:

           numberOfInstances: 1

         vdu_2:

           numberOfInstances: 1

         vdu_3:              

           numberOfInstances: 1

         

      scaleInfo:                   

         vdu_1_scaleAspect:

            scaleLevel: 1

          vdu_2_scaleAspect:

            scaleLevel: 0

          vdu_3_scaleAspect:

            scaleLevel: 0

 

Since vdu_1, vdu_2 etc. are node templates declared through the constraints of target_node property, it should be OK if they are described under vduLevels as above, complying with ETSI IFA 11 IM?

What are your thoughts?

Please comment.

 

Regards,

Priya

 

From: tosca@lists.oasis-open.org [mailto:tosca@lists.oasis-open.org] On Behalf Of Chris Lauwers
Sent: Friday, March 30, 2018 8:54 AM
To: Thinh Nguyenphu; tosca@lists.oasis-open.org
Subject: RE: [tosca] Groups - VNF_DF_instantiationLevels_policy_type.docx uploaded

 

[External Email]

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Hi Thinh,

 

Thanks for posting this. I have the same question I posed on Tuesday during the YAML meeting: your proposal defines a number of data structures, but I don’t see where the semantics are defined that are associated with these data structures. Policies in TOSCA currently are imperative policies (meaning they use the Event/Condition/Action pattern). If a TOSCA orchestrator is supposed to be able to process your policies, then I would expect to see TOSCA triggers defined that specify the necessary events, conditions, and actions. Are you planning on providing those as well?

 

Thanks,

 

Chris

 

From: tosca@lists.oasis-open.org <tosca@lists.oasis-open.org> On Behalf Of Thinh Nguyenphu
Sent: Thursday, March 29, 2018 5:01 PM
To: tosca@lists.oasis-open.org
Subject: [tosca] Groups - VNF_DF_instantiationLevels_policy_type.docx uploaded

 

Document Name: VNF_DF_instantiationLevels_policy_type.docx

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Submitter: Thinh Nguyenphu
Group: OASIS Topology and Orchestration Specification for Cloud Applications (TOSCA) TC
Folder: Working Documents
Date submitted: 2018-03-29 17:00:38

 

 

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