At 2014-08-06 04:31:09, "Richard W.M. Jones" <[email protected]> wrote:
>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-using-libguestfs/ > >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. Thanks a lot . I will try. > >---------------------------------------------------------------------- > >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
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