[Libguestfs] virt-customize issue/question

[Richard Maloley II]

Rich,

Thanks for answering my email! I actually went about solving this by using ssh to issue remote commands to the hypervisor to run the virt-customize command. For my small setup this will work without issue.

Thanks again! 

---
Richard Maloley II
richard.maloley at gmail.com
616-745-6914



> On Jun 10, 2017, at 2:33 AM, Richard W.M. Jones <rjones at redhat.com> wrote:
> 
> On Fri, Jun 09, 2017 at 08:07:57PM -0400, Richard Maloley II wrote:
>> Richard,
>> 
>> Hello - I am hoping that you can shed some light on an issue I am
>> encountering. This could be due to my inexperience with KVM/Libvirtd
>> and the associated tools.
>> 
>> Scenario: I am writing a VM deployment script for my home lab. From
>> my admin workstation I can connect to my KVM host and execute a
>> virt-clone operation without issue. I then want to virt-customize
>> the new VM. This ends up in an error.
>> 
>> Essentially I believe it is telling me that it can’t find the disk
>> file.  However I can validate that the file exists on my KVM Host:
> 
> [list of images]
> 
>> My question: Is virt-customize attempting to look at my local system
>> (admin jump box) instead of the libvirtd connection to KVM02? Or is
>> this a bug? Or did I simply miss an option that I need to include?
> 
> When connected to a remote libvirtd, virt-customize simply asks
> libvirt for a list of the domains, but then it tries to open the disk
> images returned as regular files.  The libvirt XML doesn't contain any
> information that disk images are remote nor how to connect to remote
> files.
> 
> There are however several ways to edit remote files, although none of
> them are completely transparent.  Probably the simplest method is to
> share /var/lib/libvirt/images over NFS so it appears at the same path
> on every machine.
> 
> More complex methods include NBD, iSCSI, ssh:// URLs, etc.  See:
> 
>  http://libguestfs.org/guestfish.1.html#adding-remote-storage
> 
> These URLs should work with virt-customize too if you use a recent
> enough version.
> 
> You might also find my minimal cloud software useful, although this
> does not use remote storage, but relies on the controller being able
> to use passwordless ssh to connect to each cloud node:
> 
>  http://git.annexia.org/?p=mclu.git;a=summary
>  https://rwmj.wordpress.com/2015/03/23/mini-cloudcluster-v2-0/
> 
> Rich.
> 
> -- 
> Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones
> Read my programming and virtualization blog: http://rwmj.wordpress.com
> libguestfs lets you edit virtual machines.  Supports shell scripting,
> bindings from many languages.  http://libguestfs.org

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://listman.redhat.com/archives/libguestfs/attachments/20170612/fea21852/attachment.htm>