[lxc-users] sshd-keygen fails during container boot

[Peter Steele]

On 12/09/2015 09:43 AM, Serge Hallyn wrote:
> And "the systemd errors" is the ssh-keygen ones only?  Or is there
> more?
Various services are being impacted, for example, I saw these errors in 
a run yesterday:

Dec  7 13:52:00 pws-vm-00 systemd: Failed at step CGROUP spawning 
/usr/bin/kmod: No such file or directory
Dec  7 13:52:00 pws-vm-00 systemd: Mounted Huge Pages File System.
Dec  7 13:52:00 pws-vm-00 systemd: kmod-static-nodes.service: main 
process exited, code=exited, status=219/CGROUP
Dec  7 13:52:00 pws-vm-00 systemd: Failed to start Create list of 
required static device nodes for the current kernel.
Dec  7 13:52:00 pws-vm-00 systemd: Unit kmod-static-nodes.service 
entered failed state.

Dec  7 13:52:01 pws-vm-00 systemd: Failed at step CGROUP spawning 
/etc/rc.d/init.d/jexec: No such file or directory
Dec  7 13:52:01 pws-vm-00 systemd: jexec.service: control process 
exited, code=exited status=219
Dec  7 13:52:01 pws-vm-00 systemd: Failed to start LSB: Supports the 
direct execution of binary formats..
Dec  7 13:52:01 pws-vm-00 systemd: Unit jexec.service entered failed state.

At least a half dozen different services have failed in the various 
tests I've done, and the set is always different from run to run.
> And you do, or do not, also get these with containers created
> through the download template?
>
Most of my tests have been with my custom containers of course since we 
need the additional tools and files that make up our management 
software. I did a test though where I blew away the containers that were 
created by my install framework and replaced them all with the generic 
CentOS download template. I was unable to reproduce the systemd errors 
with this simple container. I then installed the additional OS modules 
and other third party packages that we use in our software on top of 
this basic container and the systemd errors returned. I'm going to break 
this process down a bit more to see if I can identify what additions to 
the base container cause systemd to fail.

Peter