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From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CLOUDSTACK-8715) Add support for qemu-guest-agent to libvirt provider
Date Wed, 10 Aug 2016 07:10:20 GMT

    [ https://issues.apache.org/jira/browse/CLOUDSTACK-8715?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15414832#comment-15414832
] 

ASF GitHub Bot commented on CLOUDSTACK-8715:
--------------------------------------------

Github user wido commented on the issue:

    https://github.com/apache/cloudstack/pull/1545
  
    @rhtyd Yes, we could not add the port to SSVMs right now and thus skip the Agent inside
the SSVM.
    
    That way only Instances will get the Socket and we can use it.
    
    We can add it to the SSVM later, that would be a very simple PR.
    
    Would that be a easier route to get this in?


> Add support for qemu-guest-agent to libvirt provider
> ----------------------------------------------------
>
>                 Key: CLOUDSTACK-8715
>                 URL: https://issues.apache.org/jira/browse/CLOUDSTACK-8715
>             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.
> http://users.cloudstack.apache.narkive.com/3TTmy3zj/enabling-qemu-guest-agent
> The first change needed is to add the following to the XML generated for KVM virtual
machines,:
> <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 LibvirtComputingResource.java / LibvirtVMDef.java
> Secondly the qemu-guest-agent package needs to be added to the systemvm template.



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