{
my $wireguard = $DB->get('wg-quick@wg0') ||  $DB->new_record('wg-quick@wg0', {type => 'service'});

# add private and public key if not present
unless (defined ${'wg-quick@wg0'}{'private'}) {
  $value= `/usr/bin/wg genkey`;
  chomp $value;
  $DB->set_prop('wg-quick@wg0', 'private', $value ) ;
}
# recreate public if empty or not the same
$private=$DB->get_prop('wg-quick@wg0', 'private') ;
$public=`/usr/bin/echo $private | /usr/bin/wg pubkey`;
chomp $public;
if ( ! defined ${'wg-quick@wg0'}{'public'} ||  ${'wg-quick@wg0'}{'public'} ne $public) {
  $DB->set_prop('wg-quick@wg0', 'public', $public) ;
}

# default ip 
if ( ! defined ${'wg-quick@wg0'}{'ip'} ) {
my $minimum=16; 
my $maximum=32; 
my $x = $minimum + int(rand($maximum - $minimum)); 
$DB->set_prop('wg-quick@wg0', 'ip', "172.$x.0.1") ;
}

}