On Wed, May 30, 2018 at 07:16:04PM -0700, Martín Fernández wrote:
> Stéphane,
> 
> Thank you very much for the quick reply!
> 
> What are you are saying is pretty awesome! That would make it super easy to 
> start using it. Is there any constraint in terms of what versions of LXC are 
> supported ? I can run LXCFS with LXC 1.0.10 ? 

1.0.10 should be fine though we certainly don't have all that many users
of that release now that it's two LTS ago :)

In any case, it'll be safe to install LXCFS, then create a test
container, confirm it behaves and if it does then start restarting your
existing containers, if it doesn't, let us know and we'll try to figure
out why.

> In order to understand a little bit more about how LXCFS works, does LXCFS 
> hook into LXC starting process and mount /proc/* files ?

That's correct, LXCFS when installed will create a tree at
/var/lib/lxcfs those files then get bind-mounted on top of the
containers /proc/* files through a LXC startup hook.

> Thank you very much again!
> 
> Best,
> Martín
> 
> On Wed, May 30, 2018 at 10:52 PM "Stéphane Graber" < ">"Stéphane Graber" > 
> wrote:
> 
> > 
> > 
> > 
> > _______________________________________________
> > lxc-users mailing list
> > [email protected]
> > http://lists.linuxcontainers.org/listinfo/lxc-users
> > 
> > 
> > 
> > On Wed, May 30, 2018 at 05:08:59PM -0700, Martín Fernández wrote:
> > > Hello,
> > >
> > > We are using LXC to virtualize containers in multiple of our hosts. We
> > have been running with LXC for a while now. 
> > >
> > > We started adding monitoring tools to our systems and found the known
> > issue that LXC containers show the host information on /proc/meminfo and
> > /proc/cpuinfo.  
> > >
> > > I found that LXCFS solves the problems mentioned above. What would be
> > required to setup LXCFS in my hosts ? Would I need to reboot all the
> > containers ? Do I need to restore my containers filesystem ? Is there any
> > guide/documentation around it ?
> > >
> > > Thanks before hand!
> > >
> > > Best,
> > > Martín
> > 
> > Hey there,
> > 
> > You should just need to install lxcfs and then any container you start
> > or restart will be using it. There's no way to set it up against a
> > running container, but there's also no need to restart all your
> > containers immediately, you can slowly roll it out if that helps.
> > 
> > And no changes needed to the containers, it gets setup automatically
> > through a lxc hook when the container starts.
> > 
> > 
> > --
> > Stéphane Graber
> > Ubuntu developer
> > http://www.ubuntu.com
> > 
> > 
> >

-- 
Stéphane Graber
Ubuntu developer
http://www.ubuntu.com

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