Re: With different libvirt version, lxc-enter-namespace return Different Execution results.

["hzguanqiang@xxxxxxxxxxxxxxxx" <hzguanqiang@xxxxxxxxxxxxxxxx>]



On 2013-08-08 16:53 , Daniel P. Berrange wrote:

On Thu, Aug 08, 2013 at 03:56:35PM +0800, hzguanqiang@xxxxxxxxxxxxxxxx wrote:

> But when I did the same thing under libvirt of version 1.1.0 with debian host OS, the execution result changed:

>

> #disk info of host

> hzguanqiang@debian:~$ df -hl

> Filesystem                                              Size  Used Avail Use% Mounted on

> rootfs                                                  4.0G  1.6G  2.2G  42% /

> udev                                                     10M     0   10M   0% /dev

> tmpfs                                                   4.8G  468K  4.8G   1% /run

> /dev/disk/by-uuid/12bb656b-4f80-4386-aa07-4bf90a3111b4  4.0G  1.6G  2.2G  42% /

> tmpfs                                                   5.0M  4.0K  5.0M   1% /run/lock

> tmpfs                                                   9.9G     0  9.9G   0% /run/shm

> /dev/sda8                                               428G  112G  313G  27% /home

> /dev/sda6                                               7.9G  159M  7.8G   2% /tmp

> /dev/sda5                                                16G  2.7G   14G  17% /var

> cgroup_root                                              24G     0   24G   0% /sys/fs/cgroup

> /dev/nbd5                                               1.4G  851M  466M  65% /home/openstack/stack/data/nova/instances/eed45ccb-3707-4815-9ae4-c7a2f56adb64/rootfs

 

 

> hzguanqiang@debian:~$ vir lxc-enter-namespace  instance-00000037 --noseclabel /bin/df -hl

> Filesystem                                              Size  Used Avail Use% Mounted on

> rootfs                                                  4.0G  1.6G  2.2G  42% /

> udev                                                     10M     0   10M   0% /dev

> tmpfs                                                   4.8G  468K  4.8G   1% /run

> /dev/disk/by-uuid/12bb656b-4f80-4386-aa07-4bf90a3111b4  4.0G  1.6G  2.2G  42% /

> tmpfs                                                   5.0M  4.0K  5.0M   1% /run/lock

> tmpfs                                                   9.9G     0  9.9G   0% /run/shm

> /dev/sda8                                               428G  112G  313G  27% /home

> /dev/sda6                                               7.9G  159M  7.8G   2% /tmp

> /dev/sda5                                                16G  2.7G   14G  17% /var

> cgroup_root                                              24G     0   24G   0% /sys/fs/cgroup

> /dev/nbd5                                               1.4G  851M  466M  65% /home/openstack/stack/data/nova/instances/eed45ccb-3707-4815-9ae4-c7a2f56adb64/rootfs

 

What does  'ls /proc/self/ns' show on the host ?

 

Also what is your guest XML configuration for 'intsance-0000000037' ?

 

Daniel

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Hi Daniel,

 

The info you want to see are as following:

 

hzguanqiang@debian:~$ ls /proc/self/ns

ipc  net  uts

hzguanqiang@debian:~$ vir dumpxml instance-00000037

<domain type='lxc' id='6096'>

  <name>instance-00000037</name>

  <uuid>2b39180a-cec0-4423-83e9-4446a27409ea</uuid>

  <memory unit='KiB'>10485760</memory>

  <currentMemory unit='KiB'>10485760</currentMemory>

  <vcpu placement='static'>8</vcpu>

  <cputune>

    <shares>32768</shares>

    <period>100000</period>

    <quota>400000</quota>

  </cputune>

  <resource>

    <partition>/machine</partition>

  </resource>

  <os>

    <type arch='x86_64'>exe</type>

    <init>/sbin/init</init>

    <cmdline>console=tty0 console=ttyS0</cmdline>

  </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='/opt/stack/data/nova/instances/2b39180a-cec0-4423-83e9-4446a27409ea/rootfs'/>

      <target dir='/'/>

    </filesystem>

    <interface type='bridge'>

      <mac address='fa:16:3e:01:f1:14'/>

      <source bridge='br100'/>

      <target dev='veth0'/>

      <filterref filter='nova-instance-instance-00000037-fa163e01f114'/>

    </interface>

    <console type='pty' tty='/dev/pts/2'>

      <source path='/dev/pts/2'/>

      <target type='lxc' port='0'/>

      <alias name='console0'/>

    </console>

  </devices>

  <seclabel type='none'/>

</domain>

 

------------------    
Best regards!
GuanQiang

16:58:07

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