[collectd] collectd inside a container monitoring the host

[Maurizio Vitale]

Thanks, from what I see that doesn't make any attempt to reach the host.
You can get some data out of a container without doing anything special (in
the end /proc and /sys are a filtered version of what's on the host), but
not all info is precise this way.

I think it would be important for collectd to be able to run in a container
as I expect this use case to become more and more common, but of course
somebody has to do the work. For now I have plenty of other things before
bringing my organization to kubernetes, so it'll take time for me to get to
this.

On Tue, Aug 30, 2016 at 5:40 AM, Foley, Emma L <emma.l.foley at intel.com>
wrote:

> There's a docker container for collectd in the kolla project in OpenStack.
> It just recently merged, but it might be helpful:
>     https://github.com/openstack/kolla/tree/master/docker/collectd
>
> Regards,
> Emma
>
> --------------------------------------------------------------
> Intel Research and Development Ireland Limited
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>
> > -----Original Message-----
> > From: collectd [mailto:collectd-bounces at verplant.org] On Behalf Of Marc
> > Fournier
> > Sent: Tuesday, August 30, 2016 7:10 AM
> > To: Maurizio Vitale <mrz.vtl at gmail.com>; collectd at verplant.org
> > Subject: Re: [collectd] collectd inside a container monitoring the host
> >
> > Maurizio Vitale <mrz.vtl at gmail.com> writes:
> >
> > > Hi all,
> > >   is there an easy way for running collectd inside a docker container
> > > while still monitoring the host?
> > > For a number of plugin of interest to me it is only a matter of
> > > mounting /proc to /host_proc inside the container and then use that.
> > > Other plugins might be trickier.
> > > But even for the simple ones, one might have to change the source code.
> > >
> > > Has anybody done this successfully?
> >
> > I started working on (but didn't really finish yet):
> >
> > https://github.com/collectd/collectd/pull/1867
> >
> > > [the reason for this, rather than running collectd as a normal process
> > > on every host, is that I need to have it running in kubernetes and
> > > having non-contenairazed processes is not nice]
> >
> > Yes, this was also my use-case.
> >
> > Cheers,
> > Marc
> >
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