Hi chaps, Francesco and I have spent much of today wrestling with lxc-start-ephemeral in order to make it play nice and use strictly ephemeral rootfses. We've finally got there, and there's a patch attached. I don't see a bug for this work anywhere; should we just be forwarding this to Serge & co.?
We did run into one problem, which is that once you're trying to start a second ephemeral instance, lxc-wait starts giving you errors: lxc-wait: bind : Address already in use. This appears to be a known issue, though [1], and one that doesn't appear close to having something done about it. It might be worth raising with Serge. The only time this will cause a problem is when lxc-start-ephemeral uses lxc-wait to block until the instance transitions to STOPPED, whereafter it tears down all the lxc gubbins and unmounts things. Since lxc-wait always errors at this point, it means that ephemeral instances can potentially disappear from underneath us, which is unpleasant. We can probably hack around it though. We've created a branch to track our lxc-s-e changes (it seemed marginally easier than manually diffing and patching). You can find it, strangely enough, on our beloved Launchpad [2]. Questions, comments, criticisms and general wailing are welcome. Cheers, Graham & Francesco. [1] http://comments.gmane.org/gmane.linux.kernel.containers.lxc.general/962 [2] lp:~yellow/+junk/lxc-start-ephemeral -- Graham Binns | PGP Key: EC66FA7D http://launchpad.net/~gmb
lxc-start-ephemeral-ephemeral-rootfs.patch
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