Changes between Version 114 and Version 115 of GAPI_AM_API_DRAFT


Ignore:
Timestamp:
03/20/14 09:29:08 (9 years ago)
Author:
Aaron Helsinger
Comment:

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  • GAPI_AM_API_DRAFT

    v114 v115  
    533533Augment existing slice credentials to add a new possible privilege value `longlived` that means that the issuing Slice Authority (SA) believes that the given slice should be allowed to have an extra long reservation. The proposal does not specify how the SA decides to include this privilege. Requesting a credential for such a slice results in a slice credential that adds this privilege.
    534534
    535 Aggregates must accept slice credentials that include the new privilege and understand that a privilege value of `*` does not include this privilege. When an aggregate receives a slice credential that includes this privilege, the aggregate should allow resources in this slice to be renewed beyond the usual maximum resource reservation lifetime at that aggregate. However, the maximum expiration time for the resources remains subject to local aggregate policy. Some aggregate may allow arbitrary expirations for some resources when given a long lived slice credential. Some aggregates may double the maximum duration of the reservation. And other aggregates for scarce resources may only allow a slight increase over the usual duration.
    536 
    537 '''Question''': Does the privilege say anything about how long the slice' reservations should be good for? I think not.
    538 
    539 '''Alternative''': Add a new credential, in addition to the existing slice credential, which looks just like a normal slice credential, but adds this additional privilege. This requires tools to retrieve and pass around multiple credentials.
     535Aggregates must accept slice credentials that include the new privilege and understand that a privilege value of `*` does not include this privilege. When an aggregate receives a slice credential that includes this privilege, the aggregate should allow resources in this slice to be renewed beyond the usual maximum resource reservation lifetime at that aggregate. However, the maximum expiration time for the resources remains subject to local aggregate policy. Also note that resource expiration must still be limited by the expiration of the supplied slice credential.
     536
     537Using an extension to the slice credential schema, the SA may specify the number of maximum number of days that the resource should be renewed for. That is, on initial allocate/create sliver the resource should expire after that number of days, and on renew the resource should be renewed until the minimum of the requested date, the slice expiration, and the current date plus the # of days in the slice credential. The extension: http://www.protogeni.net/resources/credential/ext/policy/1/policy.xsd
     538
     539Note that AMs may issue special credentials using the same schema to slices or users and honor these, at their own discretion.
    540540
    541541This change requires aggregates to accept and handle these new credentials.