CVMFS
This page is about the CVMFS service at RAL.
As described in the official documentation, CVMFS provides a scalable and reliable software distribution service. It is implemented as a POSIX read-only file system in user space, where files and directories are hosted on standard web servers as single source of data, and mounted in the universal namespace /cvmfs.
The STFC Scientific Computing Department at RAL maintains one of these single sources of data, or Stratum-0, for several communities:
- GridPP
- EGI
- IRIS
This documentation is for the VO content managers.
Contents
Official CVMFS pages
Onboarding
Steps for a new VO Content Manager to be granted access to the Stratum-0 at RAL.
Request access
Request access to the service sending an email to cvmfs-support@gridpp.rl.ac.uk In the email, include the following information:
- Name of the VO or CVMFS repository.
- Distinguish Name (DN) from your X509 grid certificate.
Mailing list
All VO content managers should join the CVMFS-UPLOADER-USERS mailing list in JISCMAIL.
Relevant documents
Read these documents:
- [link_will_go_here_when_ready PRIVACY NOTICE]
- [link_will_go_here_when_ready Acceptable Use Policy]
Publishing
To login to the service, make sure you have a valid X509 proxy ([1]), and execute the following command:
gsissh -p 1975 cvmfs-upload01.gridpp.rl.ac.uk
If you are the Content Manager for more than one repository, you would need to specify explicit which account you want to login to:
gsissh -p 1975 <myreposgm>@cvmfs-upload01.gridpp.rl.ac.uk
To copy data:
gsiscp -P 1975 <source> cvmfs-upload01.gridpp.rl.ac.uk:<destination>
After login, you will find a single directory in the home directory:
[myreposgm@cvmfs-uploader02 ~]$ ls cvmfs_repo
Copy the new content you want to distribute in that directory.
Files and directories cannot be distributed with CVMFS if they are not world-wide readable. You may want to ensure they have the right permissions with the following commands:
find . -type d -exec chmod go+rx {} \; find . -type f -exec chmod go+r {} \;