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Subject: [OASIS Issue Tracker] Created: (TOSCA-88) Use Case: Allowing deployer to customize part of a service template by adding a service / node (e.g. attach a monitoring service)

From: OASIS Issues Tracker <workgroup_mailer@lists.oasis-open.org>
To: tosca@lists.oasis-open.org
Date: Mon, 15 Apr 2013 06:00:43 -0400 (EDT)

Use Case: Allowing deployer to  customize part of a service template by adding a service / node  (e.g. attach a monitoring service)
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                 Key: TOSCA-88
                 URL: http://tools.oasis-open.org/issues/browse/TOSCA-88
             Project: OASIS Topology and Orchestration Specification for Cloud Applications (TOSCA) TC
          Issue Type: Task
          Components: Interop
         Environment: Use case for development against TOSCA-v1.0-cs01.
            Reporter: Matthew Rutkowski 
            Assignee: Aaron Zhang


How can a service template deployer customize the template to reference (use) services the provider offers (perhaps as a 3rd party service).  

Example:
How can a service template deployer customize a service template to reference (use) services the provider offers (perhaps even a 3rd party service) 
such as a monitoring service the provider offers?  How can such a service be allowed to attach (method to communicate?) to one or more services/nodes within the existing template?

Notes:
Aaron: High Level Suggestion: Extend TOSCA to support flexible customization.
Matt: Need to distill how this use case does not require some deployment time tooling which would simply create a new service template that would use (add and relate) additional provider's services (as new nodes). Specifically for this use case, would a normative declaration of a monitoring node type help resolve this case?

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