On 01/25/2012 08:18 AM, Serge Hallyn wrote:
Quoting Daniel P. Berrange (berrange@redhat.com):
On Tue, Jan 24, 2012 at 11:53:38AM -0700, Eric Blake wrote:
Systemd detects containers based on whether they have an environment variable starting with 'container=lxc'; using a longer name fits the expectations, while also allowing detection of who created the container.
Requested by Lennart Poettering, in response to https://bugs.freedesktop.org/show_bug.cgi?id=45175
ACK, I had actually offered to do this before, but at the time it was though having LIBVIRT_LXC_UUID was fine.
And it still is... right? container= is just deemed prettier?
According to the systemd bug above, yes. Also, from my IRC conversation with Lennart, I came away with the idea that other containers are also setting $container, so having ALL containers set the same environment variable (and realizing that other containers obviously won't be using LIBVIRT_LXC_*) makes it easier for systemd to recognize all containers from just a single variable name, rather than having to hand-maintain a growing list as new containers are created. At any rate, I've pushed the patch now. -- Eric Blake eblake@redhat.com +1-919-301-3266 Libvirt virtualization library http://libvirt.org