[OASIS Issue Tracker] Created: (TOSCA-87) Use Case: Specifying additional constraints / preferences when selecting target resources (Nodes) (e.g. prefer a specific Firewall)

[OASIS Issues Tracker <workgroup_mailer@lists.oasis-open.org>]

Use Case: Specifying additional constraints / preferences when selecting target resources (Nodes) (e.g. prefer a specific Firewall)
-----------------------------------------------------------------------------------------------------------------------------------

                 Key: TOSCA-87
                 URL: http://tools.oasis-open.org/issues/browse/TOSCA-87
             Project: OASIS Topology and Orchestration Specification for Cloud Applications (TOSCA) TC
          Issue Type: Task
          Components: Interop
            Reporter: Matthew Rutkowski 
            Assignee: Aaron Zhang


How does a service template designer provide additional "constraints" to the provider deploying the template in order to convey preference of certain node types (or resources) over another.

Example:
A service template declares its need for a Firewall node, but prefers type AAA over type XXX due to reliability.

Notes:
Aaron: High Level Suggestion: Extend TOSCA NodeTemplate/NodeType to support specifying additional conditions for target VM resources. 
Options: 
a) Let the deployer specify/recommends the firewall(s) he trusts
b) Let the deployer specify the firewall(s) he doesn't trust.
Matt: Perhaps an alternative use case using  an artifact type to allow desire for matching to a specific Java runtime (provider, version) over another.  Could these be constraints expressed as Reg. Exp. against node or artifact properties?

Reference:
https://www.oasis-open.org/apps/org/workgroup/tosca-interop/download.php/48504/New%20Scenarios%20for%20TOSCA%20from%20Huawei.pptx


-- 
This message is automatically generated by JIRA.
-
If you think it was sent incorrectly contact one of the administrators: http://tools.oasis-open.org/issues/secure/Administrators.jspa
-
For more information on JIRA, see: http://www.atlassian.com/software/jira