[SOLVED] accessing lxc from physical server

[Beginer]

Hello Team,

Is it possible that we can browse the lxc containers like we used to browse in openvz? Path in openvz was /var/lib/vz/private/containerid/. Thank you.

 

[dietmar]

That depends on the storage backend. For example the 'zfspool' backend allows that.

There is also a special hack for the directory backend, when you specify size '0' when creating the container. This basically creates a simple subdirectory on the host. But be aware that you do not have quota support in that case (no simfs).

 

[Beginer]

Thank you Dietmar for the reply. Is it possible that we can view the contents now as we have already created the container and started using it? I mean, can we now browse the contents from the physical server. I find only a vm-100-disk-1.raw file in the path /var/lib/vz/images/100/.

 

[LnxBil]

So, you're not running the example @dietmar mentioned with ZFS, so you have a RAW file that is mounted, so please post:

df -h | grep 100

 

[Beginer]

It actually shows nothing when I run that command.


root@srvr ~ # df -h | grep 100
root@srvr ~ #

 

[dietmar]

Thank you Dietmar for the reply. Is it possible that we can view the contents now as

# pct mount <vmid>

You the then access the content at /var/lib/lxc/<vmid>/rootfs/

see 'man pct'

 

[Beginer]

Thank you very much Dietmar. This was very helpful. Is it better to keep it unmounted and mount only when it is required?

 

[LnxBil]

I thought the VM is running and the question was about running VMs. After mounting (or starting) the df-command should yield something.

 

[Beginer]

Yes, it is running and when I mount it as suggested by Dietmar, it shows in df command. When we unmount it, it does not show up in df as expected.

Once mounted, I moved the required file from the container to the physical server and unmounted it again. I was enquiring is it better to keep it unmounted and mount only when it is required? Will it be any security related issue if we keep it mounted always? Thank you.

 

[fabian]

Yes, it is running and when I mount it as suggested by Dietmar, it shows in df command. When we unmount it, it does not show up in df as expected.

Once mounted, I moved the required file from the container to the physical server and unmounted it again. I was enquiring is it better to keep it unmounted and mount only when it is required? Will it be any security related issue if we keep it mounted always? Thank you.

mounting via "pct mount" is intended for maintenance, as it locks the VM configuration. so no, don't leave containers mounted when you don't need access to their file systems

 

[Beginer]

Thank you Fabian.