[lxc-devel] RFC: aliases

[Jay Taylor]

Hey Serge,


On Tue, Aug 20, 2013 at 1:55 PM, Serge Hallyn <serge.hallyn at ubuntu.com>wrote:

> Hi,
>
> one idea that has been brought up is to support 'aliases'.  So if you're
> locally building a daily pristine container, say at 'c-2013-08-20',
> you might want to then have a 'c-latest' alias or link pointing to the
> latest container, so you can always just
>
>         sudo lxc-clone -o c-latest -n test1 -s
>
> The most obvious idea would be to use a symbolic link.  However, while
> that mostly works, it's actually not perfect - lxc_container_new()
> will be called with the name you passed in (c-latest), not with the
> symlinked name.
>
> Another idea would be to support a $lxcpath/$lxcname/config consisting
> of only 'lxc.alias = c-2013-0820'.
>
> Do people have any other ideas?


> I'm thinking symbolic link may be the simplest thing to support -
> lxc_container_new() could immediately readlink() to get the real
> container name.
>

I like the idea of using a symlink - it'd make it simple and intuitive to
understand what's going on.

What would happen when you run lxc-destroy on an alias?  Will it destroy
the symlink or the container being pointed to?


>
> -serge
>
>
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