Add a code snippet to allow dockerized applications run in dev.

README.md

@@ -6,9 +6,10 @@ A set of docker resources to get quickly started on a symfony project
 Getting started
 ---------------
 
-* Copy the **docker** directory, the **docker-compose.yml** and **Makefile** in your symfony project.
+* Copy the `docker` directory, the `docker-compose.yml` and `Makefile` in your symfony project.
 * Edit the volumes, environment and container_name values in the docker-compose.yml according to your needs. (Do not use special chars in mysql env variables except underscores)
 * Edit the Makefile variables
+* Update `app_dev.php` to allow dockerized applications. See the condition snippet in `app_dev_docker_condition_snippet.php`.
 
 Then run your containers:
 
@@ -23,7 +24,7 @@ Benefit
 
 * Easily change your php version from the docker-compose file
 * Use the makefile to auto complete daily commands
-* Display all logs (proxy, nginx, php) with the **docker-compose logs -f command**.
+* Display all logs (proxy, nginx, php) with the `docker-compose logs -f command`.
 
 Todo
 ----

app_dev_docker_condition_snippet.php

@@ -0,0 +1,14 @@
+<?php
+
+// The following snippet allows app_dev.php for dockerized applications.
+// You need to replace your actual condition in /your/project/web/app_dev.php
+
+$dockerized = (bool) strstr($_SERVER['REMOTE_ADDR'], '172.');
+
+if (isset($_SERVER['HTTP_CLIENT_IP'])
+    || isset($_SERVER['HTTP_X_FORWARDED_FOR']) && !$dockerized
+    || !in_array(@$_SERVER['REMOTE_ADDR'], array('127.0.0.1', 'fe80::1', '::1')) && !$dockerized
+) {
+    header('HTTP/1.0 403 Forbidden');
+    exit('You are not allowed to access this file. Check '.basename(__FILE__).' for more information.');
+}