[libvirt-users] how to mount /dev/shm on system container

[Daniel P. Berrange]

On Tue, Sep 24, 2013 at 03:07:11PM +0530, Aarti Sawant wrote:
> i have create a system container test1  and trying to mount /dev/shm inside
> a container
> 
> <domain type='lxc'>
> <name>test1</name>
> <memory>102400</memory>
> <os>
>   <type>exe</type>
>   <init>/sbin/init</init>
> </os>
> <vcpu>1</vcpu>
> <devices>
> <console type='pty'/>
> <emulator>/usr/libexec/libvirt_lxc</emulator>
> <filesystem type='mount' accessmode='passthrough'>
>   <source dir='/lxc/test1/'/>
>   <target dir='/'/>
> </filesystem>
> <interface type='bridge'>
>   <source bridge='br0'/>
> </interface>
> </devices>
> </domain>

You need to add a RAM filesystem

  http://libvirt.org/formatdomain.html#elementsFilesystems

eg

   <filesystem type='ram'> 
       <source usage='10000'/>
       <target dir='/dev/shm'/>
   </filesystem>

usage is in KB

Daniel
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