[lxc-users] Fedora container thinks it is not running

[Fajar A. Nugraha]

On Thu, May 15, 2014 at 9:06 PM, Michael H. Warfield <mhw at wittsend.com>wrote:

> On Thu, 2014-05-15 at 04:40 -0400, CDR wrote:
> > The container is started, because I am inside it via ssh
> > but I cannot use its console
> > lxc-console -n msterfe
> > msterfe is not running
> >
> > I am uploading the configuration as an attachment
> > The container was created from the template, LXC 1.0.3
>
> Ah, but that config obviously was not.  (And totally aside, why do you
> need 20 macvlan eth interfaces in a container???)  What happened to the
> config that the template created?  Was it thrown away and a new one
> created from whole cloth?
>
> Did you first try the container with the initial configuration file
> generated by the template?  That would be a good place to start and you
> might want to check /usr/share/lxc/config/fedora.common.conf.  The
> initial configuration file generated by the template will "include" that
> common set of parameters but you can override those defaults.
>
>
The default default config file created by the template on Ubuntu should
work, as long as you remember to uncomment this line:
####
# When using LXC with apparmor, uncomment the next line to run unconfined:
#lxc.aa_profile = unconfined
####

With that commented out, you'd get
####
<30>systemd[1]: Starting Root Slice.
<27>systemd[1]: Caught <SEGV>, dumped core as pid 12.
<30>systemd[1]: Freezing execution.
####

With the unconfied apparmor profile, it works as expected

####
# lxc-ls -f f20
NAME  STATE    IPV4        IPV6  AUTOSTART
------------------------------------------
f20   RUNNING  10.0.3.205  -     NO
####


lxc-stop doesn't work without "-k". I remember reading about this on the
list some time ago, might be useful to integrate the workaround in the
template.
####
[root at f20 ~]# Received SIGPWR.
####


Using 20 veth interfaces in the container works, by adding blocks like this
in the config file (and adding appropriate configuration inside the
container). Each veth needs is its own unique hwaddr
###
lxc.network.type = veth
lxc.network.flags = up
lxc.network.link = lxcbr0
lxc.network.hwaddr = fe:8b:ee:bc:52:c0
###


###
# lxc-ls -f f20
NAME  STATE    IPV4


                           IPV6  AUTOSTART
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
f20   RUNNING  10.0.3.205, 10.0.3.207, 10.0.3.208, 10.0.3.209, 10.0.3.210,
10.0.3.217, 10.0.3.218, 10.0.3.219, 10.0.3.220, 10.0.3.221, 10.0.3.222,
10.0.3.223, 10.0.3.224, 10.0.3.225, 10.0.3.226, 10.0.3.233, 10.0.3.234,
10.0.3.235, 10.0.3.236, 10.0.3.237  -     NO
###

-- 
Fajar
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