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Subject: [OASIS Issue Tracker] Commented: (TOSCA-86) Use Case: Sharing Nodes (e.g. a Database) between two separate (deployed) service templates

    [ http://tools.oasis-open.org/issues/browse/TOSCA-86?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=33446#action_33446 ] 

Aaron Zhang commented on TOSCA-86:

A supporting document is uploaded on 16/5/2013.

> Use Case: Sharing Nodes (e.g. a Database) between two separate (deployed) service templates
> -------------------------------------------------------------------------------------------
>                 Key: TOSCA-86
>                 URL: http://tools.oasis-open.org/issues/browse/TOSCA-86
>             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
> Desire to have one service template reference nodes or artifacts in another (already deployed) service template.
> Example:
> Sugar_eCard service template wishes to share an existing DB Node (instance) with already deployed SugarCrm service template.
> Notes:
> Aaron: High Level Suggestion: Extend TOSCA ServiceTemplate to support referencing to existing nodes.  
> Derek: generic deployed component to ref. an instance already deployed, need access credentials and simply need to connect (you own it or don't own).
> Aaron: If you want to ref. an existing node, the intent was the node was owned by the same customer.
> Matt: Perhaps there is a relationship with one of Derek's use cases involving access (control) to access a DB. That is the 2nd service template would need to know/pass credentials.
> References:
> https://www.oasis-open.org/apps/org/workgroup/tosca-interop/download.php/48504/New%20Scenarios%20for%20TOSCA%20from%20Huawei.pptxx

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