[lxc-users] apparmor dhclient denied, no network, something wrong with 2.12?
Stéphane Graber
stgraber at ubuntu.com
Mon Mar 27 01:39:52 UTC 2017
Interesting, so yeah, that's not the issue.
Can you paste "ps fauxww | grep dnsmasq" on the host, to see what's
going on with the DHCP server?
On Mon, Mar 27, 2017 at 12:12:29AM +0000, Spike wrote:
> also fwiw I run ansible against the container and customize it so my
> /etc/network/interfaces looks like this:
>
> administrator at lxc:~$ lxc exec test cat /etc/network/interfaces
> # This file describes the network interfaces available on your system
> # and how to activate them. For more information, see interfaces(5).
>
> # The loopback network interface
> auto lo
> iface lo inet loopback
>
> auto eth0
> iface eth0 inet dhcp
>
>
> On Sun, Mar 26, 2017 at 5:09 PM Spike <spike at drba.org> wrote:
>
> > Stephane,
> >
> > this is my default profile, don't think I have that key at all. I don't
> > really use profiles, all my interfaces are setup with ansible and I specify
> > devices there.
> >
> > config: {}
> > description: Default LXD profile
> > devices:
> > root:
> > path: /
> > pool: default
> > type: disk
> > name: default
> > used_by:
> > - /1.0/containers/log
> >
> > also this is the same config I have on all my other working nodes.
> >
> > thanks,
> >
> > Spike
> >
> >
> > On Sun, Mar 26, 2017 at 4:56 PM Stéphane Graber <stgraber at ubuntu.com>
> > wrote:
> >
> > lxc profile show default
> >
> > Chances are you have the config key which instructs LXD to disable DHCP
> > in the containers and causes /etc/network/interfaces in the containers
> > to say "iface eth0 inet manual" as a result.
> >
> > On Sun, Mar 26, 2017 at 10:18:31PM +0000, Spike wrote:
> > > so more info. I actually tried to wipe everything and install from the
> > lts
> > > ppa, but got the same behavior, so it's not 2.12 (the lts ppa has 2.0.9).
> > > The other thing worth nothing is that static assignment works, so this
> > > doesn't seem a problem with the bridge (fwiw there are 4 eth bonded and
> > the
> > > bridge is on the bond):
> > >
> > > +--------+----------+---------+---------+
> > > | NAME | TYPE | MANAGED | USED BY |
> > > +--------+----------+---------+---------+
> > > | bond0 | bond | NO | 0 |
> > > +--------+----------+---------+---------+
> > > | eth0 | physical | NO | 0 |
> > > +--------+----------+---------+---------+
> > > | eth1 | physical | NO | 0 |
> > > +--------+----------+---------+---------+
> > > | eth2 | physical | NO | 0 |
> > > +--------+----------+---------+---------+
> > > | eth3 | physical | NO | 0 |
> > > +--------+----------+---------+---------+
> > > | lxdbr0 | bridge | NO | 1 |
> > > +--------+----------+---------+---------+
> > >
> > > ## the container:
> > > architecture: x86_64
> > > config:
> > > volatile.base_image:
> > > 2cab90c0c342346ea154bc2e8cacdae752a70747a755ce1f2970c9a9ebb5fe8c
> > > volatile.eth0.hwaddr: 00:16:3e:bb:05:c5
> > > volatile.idmap.base: "0"
> > > volatile.idmap.next:
> > >
> > '[{"Isuid":true,"Isgid":false,"Hostid":100000,"Nsid":0,"Maprange":65536},{"Isuid":false,"Isgid":true,"Hostid":100000,"Nsid":0,"Maprange":65536}]'
> > > volatile.last_state.idmap:
> > >
> > '[{"Isuid":true,"Isgid":false,"Hostid":100000,"Nsid":0,"Maprange":65536},{"Isuid":false,"Isgid":true,"Hostid":100000,"Nsid":0,"Maprange":65536}]'
> > > volatile.last_state.power: RUNNING
> > > devices:
> > > root:
> > > path: /
> > > pool: default
> > > type: disk
> > > ephemeral: false
> > > profiles:
> > > - default
> > >
> > > the image is a fresh download of xenial from the ubuntu mirror.
> > >
> > > again static assignments works, the problem is exclusively with dhcp.
> > >
> > > thank you for any input,
> > >
> > > Spike
> > >
> > > On Sun, Mar 26, 2017 at 1:54 PM Spike <spike at drba.org> wrote:
> > >
> > > Hi,
> > >
> > > can't seem to get dhcp to work anymore on containers and I don't get
> > why. I
> > > have 3 servers, all 3 set up the same way (from ansible). on the third
> > > which I just rebuilt lxc gets no network. Instead on the host's logs I
> > get
> > > this:
> > >
> > > audit: type=1400 audit(1490560798.485:349): apparmor="DENIED"
> > > operation="file_perm" namespace="root//lxd-log_<var-lib-lxd>"
> > > profile="/sbin/dhclient" name="/apparmor/.null" pid=8928 comm="dhclient"
> > > requested_mask="w" denied_mask="w" fsuid=100000 ouid=0
> > >
> > > lxc config set my-container raw.lxc lxc.aa_profile=unconfined did not
> > help.
> > > It seems related to this bug, but not sure:
> > >
> > > https://bugs.launchpad.net/ubuntu/+source/isc-dhcp/+bug/1654624
> > >
> > > the only difference I can see between the host that doesn't work and the
> > > one that does is the version of LXD, 2.12 on the host that doesn't work
> > and
> > > 2.11 on the others (installed from ppa on ubuntu xenial).
> > >
> > > any thoughts?
> > >
> > > thanks,
> > >
> > > Spike
> >
> > > _______________________________________________
> > > lxc-users mailing list
> > > lxc-users at lists.linuxcontainers.org
> > > http://lists.linuxcontainers.org/listinfo/lxc-users
> >
> >
> > --
> > Stéphane Graber
> > Ubuntu developer
> > http://www.ubuntu.com
> > _______________________________________________
> > lxc-users mailing list
> > lxc-users at lists.linuxcontainers.org
> > http://lists.linuxcontainers.org/listinfo/lxc-users
> >
> >
> _______________________________________________
> lxc-users mailing list
> lxc-users at lists.linuxcontainers.org
> http://lists.linuxcontainers.org/listinfo/lxc-users
--
Stéphane Graber
Ubuntu developer
http://www.ubuntu.com
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