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HEPiX Virtulisation WG meeting minutes 2010-07-05
Present (in no particular order):
Tony Cass, CERN
Thomas Finnern, DESY
Romain Wartel, CERN
Owen Synge, DESY
Ian Gable, University of Victoria
Michel Jouvin, GRIF
Ian Collier, RAL
Dave Kelsey, RAL
Sonder Klous, NIKEF
Ulrich Schwickerath, CERN
Regrets from:
Sebastien Goasguen, CERN
Martin Bly, RAL
1. Comments on the previous minutes.
Tony asked Dave if he agreed that CERNVM FS is compatiple with the present policy document. Dave hasn't had a chance to look in great detail, but based on what Tony has said he agrees that there is no need for change. Dave commented that we should think about changing the policy, if necessary, in the future after we have some experience.
Sebastian was to discuss image creation with Owen. There was an exchange of mail on the list on this topic. Owen now has several image he can give to Sebastian for contextualization
Tony was to discuss the VMIC workplan with Owen. Owen has posted an initial workplan (more later).
Tony did discuss multiple hypervisor support with Andrea.
2. Image catalogue planning
Owen has reorganized the workplan: https://twiki.cern.ch/twiki/bin/view/HEPIX/VMIC . He has outlined short term goals he considers important. He wishes to satisfy Ulrich request that the same VMIC is able to satisfy both Endorser and Site roles. However due to the complexity of the SVMIC, if there is a pull toward that site role Owen's preference is to satisfy the more complicated cases first.
Romain suggested that breaking the VMIC into some modules would help with satisfing two roles. He volunteered to assist Owen with this, and Tony agreed.
Owen commented that we need a VMIC working as soon as possible. To this end, he will improve the straw man implementation to make it useable, without considering it a best or final solution.
Owen first priority is to demonstrate that an authenticated connection to the VMIC can be made, and that the clients DN can be retrieved.
Owen would like to populate the database with some test VM data. Romain can give him some real data.
Owen is not convinced that his present DB schema is correct, he fears that some queries are rather expensive.
Romain commented that to ease adoption we may want to avoid a dependency on a databases such as MySQL or Oracle. He suggested something like sqlite or a flat file. He also commented that we must consider the forward evolution of the database. Owen responded that he considers databases easy to manipulate, and we may have around 100 images a month added to the VMIC. Tony asked that we return to this discussion later.
3. Action items
- Romain to assist Owen will modularization of VMIC components.
- Romain to give Owen real VM data to populate the database for testing.
- Owen to give images to Sebastian for contextualization at CERN.
4. Next meeting
July 12 14:00 UTC
- Discuss the progress on image exchange.
- Discuss VMIC database dependency.
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