Re: [Libguestfs] python-guestfs rbd

On Wed, Aug 06, 2014 at 04:17:24PM +0800, Li Tianqing wrote: > how to use python-guestfs to access rbd device? The function i found is g.add_drive_opts, but i dono know how it receive ceph's configuration. > I found this link > http://rwmj.wordpress.com/2013/03/12/accessing-ceph-rbd-sheepdog-etc-usin... Ignore this link, it's very old and describes a hack which is no longer needed. Libguestfs now properly supports accessing many remote drives, without needing hacks. > Is that the only way i should use to access ceph rbd? Can we use > python-guestfs to get the same effect? Yes, you can use python-guestfs to access rbd. You need to do something like the code below. My Ceph server is switched off at the moment and I'm about to go to a conference, so I didn't have time to test this, but something like this should work.

Make sure you have a recent version of libguestfs. At least >= 1.26.

---------------------------------------------------------------------- import guestfs g = guestfs.GuestFS (python_return_dict=True) g.set_verbose (1) g.set_trace (1) g.add_drive_opts ("pool/image", format="raw", readonly=1, protocol="rbd", server=[ "192.168.0.10:1234", "192.168.0.11:1235" ], # username="rbd_user_name", # secret="base64_encoded_password", ) g.launch () # etc. ---------------------------------------------------------------------- Rich. -- Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones Read my programming and virtualization blog: http://rwmj.wordpress.com virt-builder quickly builds VMs from scratch http://libguestfs.org/virt-builder.1.html