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Subject: [OASIS Issue Tracker] Commented: (TOSCA-87) Use Case: Specifying additional constraints / preferences when selecting target resources (Nodes) (e.g. prefer a specific Firewall)
[ http://tools.oasis-open.org/issues/browse/TOSCA-87?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=33597#action_33597 ] Aaron Zhang commented on TOSCA-87: ---------------------------------- @Frank: Sounds reasonable, no doubt that Policies in NodeTemplate can be used to resolve this issue. The question becomes whether we need to define a set of standard Policies, I think. > 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 > Environment: Use case for development against TOSCA-v1.0-cs01. > 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
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