lxc-autostart: Document -a and -g

Signed-off-by: Stéphane Graber <stgraber@ubuntu.com>
Acked-by: Serge E. Hallyn <serge.hallyn@ubuntu.com>
lxc-autostart: Add a new --ignore-auto/-A flag

When passed, this flag will cause lxc-autostart to ignore the value of
lxc.start.auto.

This then allows things like: lxc-autostart -s -a -A

Which will select all containers regardless of groups (-a), regardless
of whether they are actually marked as auto-started (-A) and will shut
them down (-s).

Update our init scripts to use the new feature.

Signed-off-by: Stéphane Graber <stgraber@ubuntu.com>
Acked-by: Serge E. Hallyn <serge.hallyn@ubuntu.com>
lxc-ls: Update help message to include fields

Instead of maintaining hardcoded lists, point everyone to --help and
have the current list of valid and default fields printed there.

Signed-off-by: Stéphane Graber <stgraber@ubuntu.com>
Acked-by: Serge E. Hallyn <serge.hallyn@ubuntu.com>
lxc-ls: Add interfaces field

Signed-off-by: Stéphane Graber <stgraber@ubuntu.com>
Acked-by: Serge E. Hallyn <serge.hallyn@ubuntu.com>
lxc-create: Require --template be passed

It's often been reported that the behavior of lxc-create without -t is a
bit confusing. This change makes lxc-create require the --template
option and introduces a new "none" special value which when set will
fallback to the old template-less behavior.

Signed-off-by: Stéphane Graber <stgraber@ubuntu.com>
Acked-by: Serge E. Hallyn <serge.hallyn@ubuntu.com>