9 a.m.
On 08/12/2014 07:08 AM, Royce Lv wrote:
I can reproduce this (insane)bug in Fedora20:(,
will it be better to integrate it with vm model update logic to wrap
this kind of fallback?
That way code maintain would be easier.
I don't think so.
The vms model is related to /vms API and the problem is specific of
/vms/<vm-name>/storage/<cdrom>
I think it is better to keep it here (in vmstorages.py) and remove it
when we have libvirt fixed.
On 2014年08月12日 10:31, Aline Manera wrote:
> dom.updateDeviceFlags() can not work well while updating cdrom
> configuration
> from local to remote file.
> Even passing a right xml to this API, it updates the vm xml like below:
>
> <disk type='network' device='cdrom'>
> <driver name='qemu' type='raw'/>
> <source protocol='nbd'
> name='/13.04/ubuntu-13.04-desktop-amd64.iso'/>
> <target dev='hdc' bus='ide'/>
> <readonly/>
> <address type='drive' controller='0' bus='1'
target='0'
> unit='0'/>
> </disk>
>
> Instead of:
>
> <disk type='network' device='cdrom'>
> <driver name='qemu' type='raw'/>
> <source protocol='http'
> name='/13.04/ubuntu-13.04-desktop-amd64.iso'>
> <host name='ubuntu-releases.cs.umn.edu' port='80'/>
> </source>
> <target dev='hdc' bus='ide'/>
> <readonly/>
> <address type='drive' controller='0' bus='1'
target='0'
> unit='0'/>
> </disk>
>
> In this case it is safe to manually update the vm xml to properly
> change the
> cdrom configuration instead of using the libvirt API.
>
> Signed-off-by: Aline Manera <alinefm(a)linux.vnet.ibm.com>
> ---
> src/kimchi/model/vmstorages.py | 15 +++++++++++++++
> 1 file changed, 15 insertions(+)
>
> diff --git a/src/kimchi/model/vmstorages.py
> b/src/kimchi/model/vmstorages.py
> index b5311db..d2da4aa 100644
> --- a/src/kimchi/model/vmstorages.py
> +++ b/src/kimchi/model/vmstorages.py
> @@ -250,6 +250,21 @@ class VMStorageModel(object):
> xml = _get_storage_xml(dev_info, ignore_source)
>
> try:
> + # FIXME: dom.updateDeviceFlags() can not work well while
> updating
> + # cdrom configuration from local to remote file
> + # In this case it is safe to manually update the vm xml
> to properly
> + # change the cdrom configuration
> + if dev_info['type'] == 'cdrom' and
params['src_type'] ==
> 'network':
> + # check if the current cdrom is a local file
> + conn = self.conn.get()
> + dom = conn.lookupByName(vm_name)
> + root = ET.fromstring(dom.XMLDesc(0))
> + devices = root.find(".devices")
> + disk = devices.find(".disk/target[@dev='%s']/.." %
> dev_name)
> + if disk.attrib["type"] != 'network':
> + devices.replace(disk, ET.fromstring(xml))
> + conn.defineXML(ET.tostring(root))
> +
> dom.updateDeviceFlags(xml, get_vm_config_flag(dom, 'all'))
> except Exception as e:
> raise OperationFailed("KCHVMSTOR0009E", {'error':
> e.message})