Zigbee2mqtt: Docker test image based on Gladys v4

Development
275

@cicoub13 I just quickly tested a small piece of js with the lib we use without going all the way.

var Docker = require('dockerode');
var docker = new Docker({socketPath: '/var/run/docker.sock'});
// HERE we can replace gladys with os.hostname
var container = docker.getContainer('gladys');

 container.inspect(function (err, data) {
         var string = JSON.stringify(data);
         var objectValue = JSON.parse(string);
         console.log(objectValue['HostConfig']['Binds']);
});

Returns the standard mounts

[
  '/var/run/docker.sock:/var/run/docker.sock',
  '/var/lib/gladysassistant:/var/lib/gladysassistant'
]

A small regex to get the host side bind and that should solve this point?