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From "ASF GitHub Bot (JIRA)" <>
Subject [jira] [Commented] (CLOUDSTACK-8715) Add support for qemu-guest-agent to libvirt provider
Date Tue, 09 Aug 2016 19:46:21 GMT


ASF GitHub Bot commented on CLOUDSTACK-8715:

Github user rhtyd commented on the issue:
    @wido thanks
    With 4.9/lts we've reproduced many issues around patchviasocket timing out. If this is
a better and more robust approach, should we have this fix in 4.9/lts as well? This may require
a new systemvmtemplate though. Given our 4.6 based systemvm template is quite old (at least
8-9 months) and there have been security/openssl related updates, does it make sense to generate/publish
a new systemvmtemplte for 4.9.1/lts? @wido is there a way we can avoid installation/generation
of a new systemvm template package?

> Add support for qemu-guest-agent to libvirt provider
> ----------------------------------------------------
>                 Key: CLOUDSTACK-8715
>                 URL:
>             Project: CloudStack
>          Issue Type: New Feature
>      Security Level: Public(Anyone can view this level - this is the default.) 
>          Components: KVM
>            Reporter: Sten Spans
>            Assignee: Wido den Hollander
>              Labels: kvm, libvirt, qemu, systemvm
>             Fix For: Future
> The qemu guest agent is a newer part of qemu/kvm/libvirt which exposes quite a lot of
useful functionality, which can only be provided by having an agent on the VM. This includes
things like freezing/thawing filesystems (for backups), reading files on the guest, listing
interfaces / ip addresses, etc.
> This feature has been requested by users, but is currently not implemented.
> The first change needed is to add the following to the XML generated for KVM virtual
> <channel type='unix'>
>   <source mode='bind'/>
>   <target type='virtio' name='org.qemu.guest_agent.0'/>
> </channel>
> This provides the communication channel between libvirt and the agent on the host. All
in all a pretty simple change to /
> Secondly the qemu-guest-agent package needs to be added to the systemvm template.

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