Laradock php-fpm apache2 file_get_contents connection refused - php

Question

I've running laradock 7.0.0 with the a multi project structure with the following containers:
docker-compose up -d apache2
That will run php-fpm and apache2
I configured my hosts file to connect to localhost:
/etc/hosts
127.0.0.1 myproject.local
I've create an site config for my apache2:
laradock/apache2/sites/myproject.conf
<VirtualHost *:80>
ServerName myproject.local
DocumentRoot /var/www/myproject/public/
Options Indexes FollowSymLinks
<Directory "/var/www/myproject/public/">
AllowOverride All
<IfVersion < 2.4>
Allow from all
</IfVersion>
<IfVersion >= 2.4>
Require all granted
</IfVersion>
</Directory>
</VirtualHost>
I modify the php.ini settings to allow url include:
laradock/php-fpm/laravel.ini
allow_url_include=On
When going to myproject.local the website is showing.
No problems so far. But when i do a file_get_contents, then i get an connection refused:
$json = file_get_contents('http://myproject.local/test.json');
var_dump($json);
exit;
Response:
Warning: file_get_contents(http://myproject.local/test.json): failed to open stream: Connection refused in /var/www/myproject/public/test.json
It seems that php-fpm can't find apache2. When i get the ip adres of the apache2 container:
docker exec -ti laradock_apache2_1 bash
ifconfig
Results in:
eth0 Link encap:Ethernet HWaddr 02:42:ac:16:00:04
inet addr:172.22.0.4
And i modify the hosts file on my php-fpm
docker exec -ti laradock_php-fpm_1 bash
nano /etc/hosts
Add rule:
172.22.0.4 myproject.local
Than the file_get_contents works. The problem with this fix is that the ip of the apache2 container is not always the same. And i'll have to do this every time for every project.
Is there a way to modify the Dockerfile or docker-compose.yml to link php-fpm to apache2 for every project in once?