Re: [Xen-devel] Tool to migrate xm/xend managed domains into xl.cfg files

[Ian Campbell <Ian.Campbell@xxxxxxxxxx>]

On Wed, 2014-04-02 at 15:33 +0100, George Dunlap wrote:
> On Wed, Apr 2, 2014 at 2:56 PM, Stefan Bader <stefan.bader@xxxxxxxxxxxxx> 
> wrote:
> > On 02.04.2014 15:42, Pasi KÃrkkÃinen wrote:
> >> On Wed, Apr 02, 2014 at 01:49:48PM +0200, Stefan Bader wrote:
> >>> Does anybody have such a tool which could be shared? I know with a recent 
> >>> patch
> >>> in libvirt (1.2.3~rc1) it is possible to create libvirt xml files from the
> >>> config.sxp ones.
> >>> Just was wondering whether there might be a need of having something 
> >>> similar for
> >>> those that used to use xm/xend managed domains without anything else than 
> >>> the
> >>> xen-utils.
> >>>
> >>
> >> With libvirt you can do at least:
> >>
> >> virsh dumpxml vm_name > /tmp/a.xml
> >> virsh domxml-to-native xen-xm /tmp/a.xml > vmname.cfg
> >>
> >> Which gives you xm/xend text config files.. which should be mostly 
> >> compatible with xl cfgfiles.
> >
> > Right, you also could do a domxml-from-native xen-sxpr <file> and re-export 
> > that
> > with domxml-to-native xen-xm as you said.
> > The reason I am asking or looking into it is trying to figure out whether I 
> > can
> > offer a nice way of don some of that automatically for people on upgrade 
> > (and
> > there might be some that don't have libvirt installed as well).
> 
> Would users really want that translation done automatically?  I'd
> rather be told how to do it myself so I can check the outcome; but
> maybe I'm a bit strange that way. :-)
> 
> In theory it seems like someone who knew what they were doing with
> python should be able to rip out the sxp parsing stuff from xend,

Does xend store its managed domains as sxp? I thought I'd seem piles of
XML relating to the XenAPI (== managed domains) under /var somewhere...

Ian.


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