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ASD LCM Operations

<as_create_instantiate.bpmn example>

Process Sequence

• BPMN Infra gets VF Resource TOSCA.meta. 
• In there, the entity_defintion_type is found and it is set to "asd", BPMN infra launches the AS LCM Workflow as the above.
• The workflows sends a request for Create AS Identifier to SO CNFM
• <Create an AS Identifier>
  • SO CNFM receives the create request (CreateAsRequest) and processes the request and return a response with AsInstance

    • CreateAsRequest:

      asdId	Identifier (UUID)	1	Identifier that identifies the ASD which defines the AS instance to be created.
      asInstanceDescription	String	0..1	Human-readable description of the AS instance to be created.
      asInstanceName	String	0..1	Human-readable name of the AS instance to be created.

      
      

    • The client passes "asdId" to SO CNFM, so CNFM can query an ASD with the asdId from the ASD Repository

    • SO CNFM copies the incoming CreateAsRequest attributes into an AsInstance structure
    • SO CNFM will uses the asdId when it query an ASD from the ASD Repository during the instantiation operation

      
      

• When the Create AS instance is successful, SO CNFM returns 200 OK with the AsInstance
  • The returned AsInstance contains the asInstanceId
  • Subsequent operations uses the asInstanceId; i.e., the Client use the asIstanceId in the REST Api path
• <Instantiate an AS>
  • BPMN Infra sends an AS instantiate request to SO CNFM with the asInstanceId as follows:
    • POST .../as_instances/{asInstanceId}/instantiate (InstantiateAsRequest)
• SO CNFM queries an ASD with the asdId from ASD Repository; caches the retrieved ASD in the memory during the Create and Instantiate operations
• SO CNFM reads thru the ASD DeploymentItems, and per deploymentItems, SO CNFM queries for the associated Helm Chart (1:1) from the Helm Chart Repository
  • caches the retrieved Helm Charts in the memory during the Create and Instantiate operations

Create an AS Identifier

In order for an application (CNF) to be eligible for instantiation, a CNF identifier must be created to identify the application service as a unique instance.

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