DOMAIN_NAME environment variable not working

[guillian77]

Hi, thanks a lot for your great work.

I am trying to specify custom DNS by using DOMAIN_NAME environment variable but it did not work.
I read your code a bit and I have debugging something interresting.

// src/Synchronizer.php:120
// Global
if (!empty($container['NetworkSettings']['IPAddress'])) {
    $ip = $container['NetworkSettings']['IPAddress'];

    $lines[$ip] = implode(' ', $this->getContainerHosts($container));
}

For me this condition cannot be true because $container['NetworkSettings']['IPAddress'] is null or empty.

I just move $lines[$ip] = implode(' ', $this->getContainerHosts($container)); to line 130 just after $ip declaration and it work great.

I don't know if it's really a bug or this problem come from my setup.

Maybe I have to specify an other thing to make it work ?

Docker version 20.10.6, build 370c289
docker-compose version 1.28.6, build 5db8d86f

Best regards

[iamluc]

Hi,

See #34. There is a long discussion about this!