Add the autostart symlink for containers.

Add the autostart symlink for containers.

In order for containers to autostart, there needs to be
a symlink in /etc/lxc/auto called CN.conf where CN is
the container name, which points to the config file for
the container, which is by default /var/lib/lxc/CN/config.

https://code.launchpad.net/~thumper/juju-core/auto-restart-containers/+merge/175435

Requires: https://code.launchpad.net/~thumper/juju-core/test-import-fix/+merge/175430

(do not edit description out of merge proposal)

[thumper, 2013-07-18 00:57:50]

Please take a look.

[wallyworld, 2013-07-18 02:01:56]

LGTM

https://codereview.appspot.com/11491043/diff/1/container/lxc/lxc.go
File container/lxc/lxc.go (right):

https://codereview.appspot.com/11491043/diff/1/container/lxc/lxc.go#newcode131
container/lxc/lxc.go:131: linkLocation := filepath.Join(lxcRestartDir,
name+".conf")
perhaps make name+".conf" a function as it's used twice

[dave_cheney.net, 2013-07-18 02:44:07]

On 2013/07/18 02:01:56, wallyworld wrote:
> LGTM
> 
> https://codereview.appspot.com/11491043/diff/1/container/lxc/lxc.go
> File container/lxc/lxc.go (right):
> 
> https://codereview.appspot.com/11491043/diff/1/container/lxc/lxc.go#newcode131
> container/lxc/lxc.go:131: linkLocation := filepath.Join(lxcRestartDir,
> name+".conf")
> perhaps make name+".conf" a function as it's used twice

LGTM. Extra points if you want to add the helper wallyworld suggested.