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HEPiX Virtualisation Working Group Meeting
Description
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Title: HEPiX vwg Description: Community: WLCG Password: lip Phone Bridge ID 280 1234 pwd 1922
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- Meeting URL http://evo.caltech.edu/evoNext/koala.jnlp?meeting=MaMDMt2D22DvDn9v9nDI9a
HEPiX Virtualisation WG meeting minutes 2011-01-24
Present (in no particular order):
Tony Cass, CERN
Belmiro Rodrigues, CERN
Keith Chadwick, FNAL,
Martin Bly, RAL
Romain Wartel, CERN
Jia Tao, KIT
Thomas Finnern, DESY
Doug Olson, LBL,
Andrea Chierici, CNAF,
Owen Synge, DESY
Michel Jouvin, LAL
Stuart Kenny, TCD/StratusLab,
Felix Lee, ASGC
1. Previous Minutes
- There were no minutes to review
2. Report from the Image Catalogue Technical Meeting
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Tony summarised his summary of the meeting with StratusLab as follows
- The proposed StratusLab catalogue looks interesting as a central repository for image catalogue metadata but cannot completely meet the requirements of the HEPiX image exchange policy as it cannot guarantee end-to-end trust between endorsers and sites instantiating images. However, it should be simple enough for endorsers to provide a signed list of pointers to image metadata in the StratusLab catalogue.
- The discussions led to agreement on key metadata for images and on the protocol for communicating with the StratusLab catalogue.
- A first version of the StratusLab catalogue is expected for end-March; representatives from this group will be invited to the (EVO) demonstration for the release.
- The idea of interoperability with the StratusLab catalogue was approved. In the meanwhile some work would continue on the “CERN” catalogue; Owen would like to test this at CERN and Romain is improving the documentation following tests at Clemson (where the catalogue has been successfully connected to their virtualisation infrastructure) and ASGC.
- It was recognised that multiple image catalogue systems would exist, at least initially, and that it is important for these to be able to interoperate—in particular with agreement on key metadata and the communication protocol. On this point, Tony and Owen will contact people associated with the University of Victoria RepoMan product to encourage collaboration with StratusLab on these points. Michel encouraged this approach.
- Tony then expressed the opinion that we should not wait for a working image catalogue system before we try exchanging of virtual images between sites, but should be doing this now on an informal basis to ensure that we understand how to create images that are site agnostic. This was agreed and a number of people (Owen, Michel, Martin) expressed interest in testing images generated elsewhere.
- Tony’s suggestion that we try to identify someone to coordinate this work, just as we had identified people to coordinate the earlier work areas (policy, contextualisation, ...) was agreed. Anyone interested in taking this coordination role should contact Tony!
- Date/Time: 14th February @ 16:00 CET (15:00 UTC).
- Status of protocol/metadata agreements
- Image exchange: agree concrete steps/actions/timetable to start work in this area.
- Michel Jouvin commented on the need to prepare a virtualisation track for the forthcoming HEPiX meeting (GSI Darmstadt, week of May 2nd).
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