SKA Regional Centre
GridPP is supporting the establishment of a European Regional Centre for SKA by providing resources for prototyping and evaluation studies. Most of this work is using the skatelescope.eu VO and the GridPP DIRAC service.
Contents
VO/DIRAC links
- Quick Guide to Dirac explains how to set up GridPP DIRAC for a user
- VO Incubator entry
- skatelescope.eu VO ID Card and VOMS server
- GridPP DIRAC SAM for skatelescope.eu shows site-by-site status for skatelescope.eu DIRAC jobs.
Storage Elements
These GridPP DIRAC storage elements are accepting data from the skatelescope.eu VO:
Storage Element | Status | Capacity / TB | Table updated |
UKI-LT2-IC-HEP-disk | Validated | 10-20 | 18 Oct 2017 |
UKI-LT2-QMUL2-disk | Validated | ~20 | 18 Oct 2017 |
UKI-SOUTHGRID-CAM-HEP-disk | Validated | 10-20 | 18 Oct 2017 |
UKI-NORTHGRID-LIV-HEP-disk | Setting up | 20 | 18 Oct 2017 |
UKI-NORTHGRID-MAN-HEP-disk | Validated | ~20 | 18 Oct 2017 |
Supporting skatelescope.eu at CREAM/ARC/HTCondorCE sites
We are using skatelescope.eu as a sub-VO of the GridPP DIRAC service.
For CREAM/ARC/HTCondor-CE based sites the skatelescope.eu VO should be set up as for any other GridPP DIRAC sub-VO.
Supporting skatelescope.eu at Vac sites
For existing Vac sites, the following steps are sufficient:
For Vac, if you already have a machine type gridpp and want to create an skatelescope machinetype:
1) Make a copy of your [machinetype gridpp] section in the configuration, as [machinetype skatelescope]
2) Change
user_data_option_vo = gridpp accounting_fqan = /gridpp/Role=NULL/Capability=NULL to user_data_option_vo = skatelescope.eu accounting_fqan = /skatelescope.eu/Role=NULL/Capability=NULL
3) Make a copy of the gridpp machinetypes directory and all its subdirectories and files
/var/lib/vac/machinetypes/gridpp as /var/lib/vac/machinetypes/skatelescope (That is, it uses the same certificate/key as you use for the parent GridPP DIRAC VO)
4) Set target_share in [machinetype skatelescope] to what you want relative to the other machinetypes.
Supporting softdrive.nl
For tests using the LOFAR data and applications, it is necessary to add softdrive.nl to cvmfs. This script fragment is used within the GridPP DIRAC VMs to add softdrive.nl . It will work on worker nodes by hand for testing, and can provide the basis for adding it to a site's normal Puppet, Ansible etc configuration:
cat <<EOF >/etc/cvmfs/config.d/softdrive.nl.conf CVMFS_SERVER_URL='http://cvmfs01.nikhef.nl/cvmfs/@fqrn@;http://cvmfs-egi.gridpp.rl.ac.uk:8000/cvmfs/@fqrn@' CVMFS_PUBLIC_KEY=/etc/cvmfs/keys/softdrive.nl.pub EOF cat <<EOF >/etc/cvmfs/keys/softdrive.nl.pub -----BEGIN PUBLIC KEY----- MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA481/kCXbrVtLuzcFZ2uO EmiAKx28qXIkonPwr/gSmqQ8k1zQA7dKK5YZwZSbVwgYqvhvW6i3vKWLGVDj+elH 1u8uumPzzlAJHrS1XoR8rY4xUULjQBvV9HuJxE6OK4ZEZPvQmeGmjXd446c8J5cv BQFtaonRnrxAbtO+Z0KtzsNOzBNFegu9z+lT7/fxV17Qh10w5IKQjm/v6jPdj1ME CrG4QW2S9+Y+7YzbRP5QYaE4cl5cBI3Yb048ufgLJMfX3++uqwGM+rqNs/CzHvsW dO6Jznr9EbzqbIrTsFeUThNmsGPObxOT3VmB0BTTjrZSYjgf8oEE4hdhgNQgh7vs OwIDAQAB -----END PUBLIC KEY----- EOF cvmfs_config reload