[Libguestfs] [PATCH] v2v: -o vdsm should assume data domain at -os path
Shahar Havivi
shaharh at redhat.com
Tue Jan 20 14:25:20 UTC 2015
On 20.01.15 12:59, Richard W.M. Jones wrote:
> On Tue, Jan 20, 2015 at 02:53:43PM +0200, Shahar Havivi wrote:
>
> > >From 87f448fc8b3243ad5d01acb65efb0c710d811a93 Mon Sep 17 00:00:00 2001
> > From: Shahar Havivi <shaharh at redhat.com>
> > Date: Tue, 20 Jan 2015 14:41:23 +0200
> > Subject: [PATCH] v2v: -o vdsm should assume data domain at -os path
> >
> > Unlike -o rhev which have only one data domin, -o rhev can and usually
>
> ^^ vdsm?
>
> > does have multiple data domain.
> > The path to vdsm is pre mounted so no need to assume nfs path with -os
> > Example:
> > -o vdsm -os /rhev/data-center/<data-center-uuid>/<data-doamin-uuid>
>
> s/doamin/domain/
>
> >
> > Bug-Url: https://bugzilla.redhat.com/1176591
> > Signed-off-by: Shahar Havivi <shaharh at redhat.com>
> > ---
> > v2v/output_vdsm.ml | 10 +++++-----
> > v2v/virt-v2v.pod | 3 ++-
> > 2 files changed, 7 insertions(+), 6 deletions(-)
> >
> > diff --git a/v2v/output_vdsm.ml b/v2v/output_vdsm.ml
> > index 492f586..17f10a5 100644
> > --- a/v2v/output_vdsm.ml
> > +++ b/v2v/output_vdsm.ml
> > @@ -63,9 +63,8 @@ object
> > * name of the target files that eventually get written by the main
> > * code.
> > *
> > - * 'os' is the output storage (-os nfs:/export). 'source' contains a
> > - * few useful fields such as the guest name. 'targets' describes the
> > - * destination files. We modify and return this list.
> > + * 'os' is the output storage domain (-os /rhev/data/<data center>/<data domain>)
> > + * this is already mounted path.
> > *
> > * Note it's good to fail here (early) if there are any problems, since
> > * the next time we are called (in {!create_metadata}) we have already
> > @@ -78,8 +77,9 @@ object
> > error (f_"the number of '--vdsm-image-uuid' and '--vdsm-vol-uuid' parameters passed on the command line has to match the number of guest disk images (for this guest: %d)")
> > (List.length targets);
> >
> > - let mp, uuid =
> > - Output_rhev.mount_and_check_storage_domain verbose (s_"Data Domain") os in
> > + let pos = (String.length os) - 36 in
> > + let mp = String.sub os 0 (pos-1) in
> > + let uuid = String.sub os pos 36 in
>
> What is the significance of 36 here?
the length of uuid.
>
> > dd_mp <- mp;
> > dd_uuid <- uuid;
> > if verbose then
> > diff --git a/v2v/virt-v2v.pod b/v2v/virt-v2v.pod
> > index a48bf59..cfd55fc 100644
> > --- a/v2v/virt-v2v.pod
> > +++ b/v2v/virt-v2v.pod
> > @@ -456,7 +456,8 @@ See L</OUTPUT TO RHEV> below.
> >
> > Set the output method to I<vdsm>.
> >
> > -This mode is similar to I<-o rhev> but is only used by RHEV VDSM
> > +This mode is similar to I<-o rhev> but assume data domain as well
> > +as data center /rhev/data-center/<data-center-uuid>/<data-domain-uuid>
> > when it runs virt-v2v under VDSM control.
>
> You can't use < and > in POD.
>
> Probably better to phrase this as:
>
> This mode is similar to I<-o rhev>, but the full path to the
> data domain must be given:
> C</rhev/data-center/E<lt>data-center-uuidE<gt>/E<lt>data-domain-uuidE<gt>>.
> This mode is only used when virt-v2v runs under VDSM control.
>
> Rich.
>
> --
> Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones
> Read my programming and virtualization blog: http://rwmj.wordpress.com
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> http://libguestfs.org/virt-builder.1.html
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