Tools for interacting with CADC VOSpace.
Project description
+++++++++++++++++++++++++ DOCUMENTATION ++++++++++++++++++++++++++
cadcVOFS is a set of python modules and scripts for access VOSpace.
The default installation of cadcVOFS is tuned for accessing the
VOSpace provided by the Canadian Astronomy Data Centre
http://www.cadc.hia.nrc.gc.ca/vospace.
VOSpace is a Distrbuted Cloud storage service for use in Astronomy.
There are three ways to use cadcVOFS:
1) access VOSpace from the command-line
2) make VOSpace appear as mounted filesystem
3) use the vos module inside a Python script
All of these methods require the user to have a pre-existing VOSpace
account with the CADC.
Authentication to the CADC VOSpace service is performed using security
certificates which are managed by the CADC Group Management Service
(GMS). The certificates can be retrieved from the CADC using the
'getCert' script and users CADC account and password information.
ADDITIONAL DOCUMENTATION AVAILABLE AT:
<http://canfar.phys.uvic.ca/wiki/index.php/VOSpace_filesystem>
+++++++++++++++++++++++ REQUIREMENTS +++++++++++++++++++++++++++++++
A CADC VOSpace account
fuse OR OS-FUSE (see additional documentation)
python2.6 or newer
+++++++++++++++++++++++++ INSTALLATION +++++++++++++++++++++++++++
python setup.py install
+++++++++++++++++++++++++ USAGE ++++++++++++++++++++++++++++++++++
1) Get a CADC account <http://www.cadc.hia.nrc.gc.ca/>
2) Retrieve a SSL certificate from the CADC servers.
> getCert
retrieves a certificate from the CADC servers, these certifcates are
valid for 2 days (be default) but can be valid for upto 30 days (see
the getCert help). The cerificate is stored in ${HOME}/.ssl by
default.
3a) For filesystem usage:
> mountvofs
mounts the CADC VOSpace root Container Node at /tmp/vospace and
initiates a 5GB cache in the users home directory (${HOME}/vos_)
**** Since the VOSpace does not have a mapping of your unix users
IDs all files appear to be owned by the user who issued the
'mountvofs' command. Only that user can see the mount point.
3b) Commandline usage:
> vls -l vos:
Lists the contents of the CADC root VOSpace Container Node.
> vcp vos:jkavelaars/test.txt ./
copys the files 'test.txt' from the the vospace container jkavelaars
to your local directory.
See --help for the commands: vmkdir, vrm, vrmdir, vsync
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