Martin Kletzander
2018-Nov-23 13:26 UTC
Re: [Libguestfs] [PATCH] v2v: Add support for libosinfo metadata
On Fri, Nov 23, 2018 at 01:16:55PM +0000, Richard W.M. Jones wrote:>On Fri, Nov 23, 2018 at 02:10:01PM +0100, Martin Kletzander wrote: >> On Fri, Nov 23, 2018 at 11:53:05AM +0000, Richard W.M. Jones wrote: >> >On Fri, Nov 23, 2018 at 12:39:44PM +0100, Martin Kletzander wrote: >> >>There's a standardized libosinfo namespace for libvirt domain metadata. For now >> >>it supports the id of the OS only. However that is still a very helpful feature >> >>that is already supported in gnome-boxes and virt-manager (at least). >> >> >> >>The discussion happened here: >> >> >> >> https://www.redhat.com/archives/libosinfo/2018-September/msg00003.html >> > >> >It's a shame I missed this thread because I'd probably have asked why >> >we're inventing yet another scheme for naming guests. Particularly in >> >the libosinfo project which has already got the canonical naming >> >scheme! >> > >> >Anyway that's water under the bridge now so ... >> > >> >> But it is using the osinfo naming scheme. I mean the ID. > >Not sure I understand. osinfo currently has osinfo IDs like say >"rhel7.6", but now we've invented a new scheme >"http://redhat.com/rhel/7.6". >It's not new. Libosinfo has support for both. The first one, "rhel7.6" in this case, is a "short id", where the second one is actually called an "ID". Example output of `osinfo-query -f short-id,id,name os short-id=rhel7.4` (truncated) should explain: rhel7.4 | Red Hat Enterprise Linux 7.4 | http://redhat.com/rhel/7.4>In any case this isn't the place to argue about the merits of the new >scheme, since it seems to have been settled in libosinfo and libvirt. > >> The matching code could be made shorter, but since this is my >> "tryout patch" for libguestfs, I'm just glad it works. I'd >> appreciate literally *any* comment to any part of this. > >Apart from the duplicate case (which is in fact not duplicated), I >didn't have any other problem. However ... > >> I haven't find any unit tests for these kind of functions, so no >> tests are added. If there is a place where tests would fit >> nicely, feel free to let me know. > >... I think the tests might actually be broken by this patch. Did you >try: ‘make -C test-data check && make -C v2v check’? >good point, probably not after the patch. will do.>> >>So let's add the support to local and libvirt outputs. >> >> >> >>Signed-off-by: Martin Kletzander <mkletzan@redhat.com> >> >>--- >> >> v2v/create_libvirt_xml.ml | 109 ++++++++++++++++++++++++++++++++++++- >> >> v2v/create_libvirt_xml.mli | 1 + >> >> v2v/output_libvirt.ml | 4 +- >> >> v2v/output_local.ml | 4 +- >> >> 4 files changed, 113 insertions(+), 5 deletions(-) >> >> >> >>diff --git a/v2v/create_libvirt_xml.ml b/v2v/create_libvirt_xml.ml >> >>index 55e83e8bc1b9..180f3768792b 100644 >> >>--- a/v2v/create_libvirt_xml.ml >> >>+++ b/v2v/create_libvirt_xml.ml >> >>@@ -34,8 +34,102 @@ let find_target_disk targets { s_disk_id = id } >> >> try List.find (fun t -> t.target_overlay.ov_source.s_disk_id = id) targets >> >> with Not_found -> assert false >> >> >> >>+let get_osinfo_id = function >> >>+ | { i_type = "linux"; i_distro = "rhel"; >> >>+ i_major_version = major; i_minor_version = minor } -> >> >>+ Some (sprintf "http://redhat.com/rhel/%d.%d" major minor) >> >>+ >> >>+ | { i_type = "linux"; i_distro = "centos"; >> >>+ i_major_version = major; i_minor_version = minor } when major < 7 -> >> >>+ Some (sprintf "http://centos.org/centos/%d.%d" major minor) >> >>+ >> >>+ | { i_type = "linux"; i_distro = "centos"; i_major_version = major } -> >> >>+ Some (sprintf "http://centos.org/centos/%d.0" major) >> >>+ >> >>+ | { i_type = "linux"; i_distro = "sles"; >> >>+ i_major_version = major; i_minor_version = 0 } -> >> >>+ Some (sprintf "http://suse.com/sles/%d" major) >> >>+ >> >>+ | { i_type = "linux"; i_distro = "sles"; >> >>+ i_major_version = major; i_minor_version = minor } -> >> >>+ Some (sprintf "http://suse.com/sles/%d.%d" major minor) >> > >> >SLES is duplicated? >> > >> >> Oh, I removed the comment i had there. osinfo does not use 0 in the version, >> it's just SLES 10, SLES 10.1 (for SP1), 10.2 (for SP2) and so on. > >Oh I see now, it's not duplicated because of the check for >i_minor_version = 0. > >> But I just noticed I forgot to differentiate SLED from SLES. It >> should be possible based on i_product_name. I think it would make >> sense for libosinfo and it doesn't look like they are separate in >> libguestfs (on purpose). Would it also make sense to separate them >> here? Is it even possible? I'm not sure what the compatibility >> promises are. > >No idea. We just try to provide libvirt XML which is as useful as >possible. > >Rich. > >-- >Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones >Read my programming and virtualization blog: http://rwmj.wordpress.com >virt-top is 'top' for virtual machines. Tiny program with many >powerful monitoring features, net stats, disk stats, logging, etc. >http://people.redhat.com/~rjones/virt-top
Martin Kletzander
2018-Nov-23 14:55 UTC
Re: [Libguestfs] [PATCH] v2v: Add support for libosinfo metadata
On Fri, Nov 23, 2018 at 02:26:08PM +0100, Martin Kletzander wrote:>On Fri, Nov 23, 2018 at 01:16:55PM +0000, Richard W.M. Jones wrote: >>On Fri, Nov 23, 2018 at 02:10:01PM +0100, Martin Kletzander wrote:[...]>>> I haven't find any unit tests for these kind of functions, so no >>> tests are added. If there is a place where tests would fit >>> nicely, feel free to let me know. >> >>... I think the tests might actually be broken by this patch. Did you >>try: ‘make -C test-data check && make -C v2v check’? >> > >good point, probably not after the patch. will do. >The tests pass. Should I add/change something in there as well since I'm going to be sending v2 anyway? [...]>>> But I just noticed I forgot to differentiate SLED from SLES. It >>> should be possible based on i_product_name. I think it would make >>> sense for libosinfo and it doesn't look like they are separate in >>> libguestfs (on purpose). Would it also make sense to separate them >>> here? Is it even possible? I'm not sure what the compatibility >>> promises are. >> >>No idea. We just try to provide libvirt XML which is as useful as >>possible. >>I added SLED/SLES differentiation to v2.
Martin Kletzander
2018-Nov-23 15:25 UTC
Re: [Libguestfs] [PATCH] v2v: Add support for libosinfo metadata
On Fri, Nov 23, 2018 at 03:55:15PM +0100, Martin Kletzander wrote:>On Fri, Nov 23, 2018 at 02:26:08PM +0100, Martin Kletzander wrote: >>On Fri, Nov 23, 2018 at 01:16:55PM +0000, Richard W.M. Jones wrote: >>>On Fri, Nov 23, 2018 at 02:10:01PM +0100, Martin Kletzander wrote: > >[...] > >>>> I haven't find any unit tests for these kind of functions, so no >>>> tests are added. If there is a place where tests would fit >>>> nicely, feel free to let me know. >>> >>>... I think the tests might actually be broken by this patch. Did you >>>try: ‘make -C test-data check && make -C v2v check’? >>> >> >>good point, probably not after the patch. will do. >> > >The tests pass. Should I add/change something in there as well since I'm going >to be sending v2 anyway? >My bad, I had the appliance and daemon disabled. I'll build with that and update the patch accordingly, sorry for the noise.>[...] > >>>> But I just noticed I forgot to differentiate SLED from SLES. It >>>> should be possible based on i_product_name. I think it would make >>>> sense for libosinfo and it doesn't look like they are separate in >>>> libguestfs (on purpose). Would it also make sense to separate them >>>> here? Is it even possible? I'm not sure what the compatibility >>>> promises are. >>> >>>No idea. We just try to provide libvirt XML which is as useful as >>>possible. >>> > >I added SLED/SLES differentiation to v2.
Richard W.M. Jones
2018-Nov-23 15:27 UTC
Re: [Libguestfs] [PATCH] v2v: Add support for libosinfo metadata
On Fri, Nov 23, 2018 at 03:55:15PM +0100, Martin Kletzander wrote:> On Fri, Nov 23, 2018 at 02:26:08PM +0100, Martin Kletzander wrote: > >On Fri, Nov 23, 2018 at 01:16:55PM +0000, Richard W.M. Jones wrote: > >>On Fri, Nov 23, 2018 at 02:10:01PM +0100, Martin Kletzander wrote: > > [...] > > >>> I haven't find any unit tests for these kind of functions, so no > >>> tests are added. If there is a place where tests would fit > >>> nicely, feel free to let me know. > >> > >>... I think the tests might actually be broken by this patch. Did you > >>try: ‘make -C test-data check && make -C v2v check’? > >> > > > >good point, probably not after the patch. will do. > > > > The tests pass. Should I add/change something in there as well since I'm going > to be sending v2 anyway?I see that the test I was expecting might fail (test-v2v-o-libvirt.sh) in fact only uploads the XML to libvirt without checking it in detail, and we don't have a test for -o local at all. Nevermind. Just post patch v2. Rich. -- Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones Read my programming and virtualization blog: http://rwmj.wordpress.com virt-p2v converts physical machines to virtual machines. Boot with a live CD or over the network (PXE) and turn machines into KVM guests. http://libguestfs.org/virt-v2v
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