[libvirt-users] Sharing network namespace between containers

[Harish Vishwanath]

Hello

Based on the lxc driver documentation, I am trying to create an xml to
share an existing network namespace with another container. I am running
libvirt 1.2.15.

Here is the xml:

<domain type='lxc' xmlns:lxc='http://libvirt.org/schemas/domain/lxc/1.0'>

  <name>nt</name>
  <uuid>43c00192-e114-4e29-8ce7-4b5487f60a75</uuid>
  <memory unit='KiB'>65536</memory>
  <currentMemory unit='KiB'>65536</currentMemory>
  <vcpu placement='static'>1</vcpu>
  <cputune>
    <shares>2000</shares>
  </cputune>
  <resource>
    <partition>/apphosting.partition</partition>
  </resource>
  <os>
    <type arch='x86_64'>exe</type>
    <init>/sbin/init</init>
  </os>
  <clock offset='utc'/>
  <on_poweroff>destroy</on_poweroff>
  <on_reboot>restart</on_reboot>
  <on_crash>destroy</on_crash>
  <devices>
    <emulator>/usr/lib/libvirt/libvirt_lxc</emulator>
    <filesystem type='mount' accessmode='passthrough'>
      <source dir='/work/repo-lxc/nt/rootfs_mnt'/>
      <target dir='/'/>
    </filesystem>
    <filesystem type='mount' accessmode='squash'>
      <driver type='path' wrpolicy='immediate'/>
      <source dir='/local/local1/core_dir/nt'/>
      <target dir='/local/local1/core_dir'/>
    </filesystem>

<!--
    <interface type='network'>
      <mac address='52:54:dd:6d:44:d2'/>
      <source network='dpbr_0'/>
      <guest dev='eth0'/>
    </interface>
-->

    <console type='pty'>
      <target type='lxc' port='0'/>
    </console>
  </devices>

*  <lxc:namespace>*
*    <lxc:sharenet type='netns' value='node'/>*
*  </lxc:namespace>*
</domain>

However, the virsh edit is unable to save this file:

error: XML document failed to validate against schema: Unable to validate
doc against /usr/share/libvirt/schemas/domain.rng
Element domain has extra content: namespace

Failed. Try again? [y,n,i,f,?]:

Is this supported in libvirt 1.2.15 - the document doesnt specify a minimum
version of libvirt.

Appreciate your help.



Regards,
Harish
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