On Fri, 7 May 2010, John Lewis wrote:
> Hi Guys,
>
> I am trying to move an LXC container from one machine to another. Can
> you recommend the best way to do that.
>
> I have tried rsyncing but some strange things seem to be happening like
> mysql being available on localhost but the wordpress sites on the same
> machine trying to connect to localhost can't :(
I use rsync from the underlying host to the new host and not seen any
issues so-far...
Rsync it while it's live, then shut it down it and do another sync, and
lxc-create then start it on the new host.
Not sure why you see issues, but it might be user IDs - rsync will use
names by default so if the names don't match on the new host or if they're
not present then funny things might happen, so always use the
--numeric-ids parameter to rsync.
So my rsync on the new host looks like:
cd /vservers
rsync -e 'ssh -c blowfish' \
--stats --delete -aHx --numeric-ids \
r...@oldhost:/vservers/container/ \
newcontainer/
(I think using blowfish makes it a bit quicker - it's a lighter weight
encryption and needs less CPU - personally, I'd rather use rsh on a
private LAN, but that's a debate for elsewhere ;-)
Gordon
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