#!/usr/bin/perl

use strict;
use warnings;

# sanity checks
my $vmid = $ARGV[0] or exit(1);
exit(0) if $vmid !~ /^\d+$/;
exit(0) if !-e "/etc/pve/lxc/${vmid}.conf";

if (unlink("/var/lib/lxc/$vmid/reboot")) {
    # restart if rebooted from within container
    exec {'systemctl'} 'systemctl', '--no-block', 'restart', "pve-container\@${vmid}.service";
} elsif (!defined($ENV{EXIT_CODE}) || $ENV{EXIT_CODE} ne "exited") {
    # stop if called via "systemctl stop lxc@ID"
    exec {'lxc-stop'} 'lxc-stop', '-n', $vmid;
} else {
    # just exit if container was shutdown from within or via lxc-stop
    exit(0);
}