On 04/14/2012 12:07 AM, Brad Alexander wrote:
I just found out through the proxmox-ve forums that running ntp on a
container is considered a Bad Thing.
Not necessarily. In fact, it's a good thing to run ntpd inside a
container, it's just you need to
1. Have only ONE container doing that.
2. Grant that container sys_time capability, so it will be able to set
system time.
This is because time is not virtualized, ie all the containers share the
same time (because indeed there's only one time -- time zones of course
can be different).
So I am reworking my puppet
installation to disable ntp on the containers...But I was trying to
figure out a foolproof way of looking on the machine and determining
if it is a container or not. The only thing I have found so far is
that /proc/mtrr exists on the physical servers, but not on the
containers. Is this a viable way to make this determination or is
there a better way?
Solutions provided here in this thread by E Frank Ball and Martin Dobrev
are both good.
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