Add Docker support: Dockerfile initial version and environment-sourci…

…ng config file.

Dockerfile

@@ -0,0 +1,12 @@
+FROM composer/composer
+
+ADD . /src/app/
+WORKDIR /src/app
+
+RUN \
+  composer install && \
+  cp includes/config.environment.inc.php includes/config.inc.php
+
+EXPOSE 80
+
+ENTRYPOINT [ "php", "-S", "0.0.0.0:80" ]

includes/config.environment.inc.php

@@ -0,0 +1,46 @@
+<?php
+
+include 'config.sample.inc.php';
+
+$admin_user = getenv('ADMIN_USER');
+$admin_pass = getenv('ADMIN_PASS');
+
+if (!empty($admin_user)) {
+  $config['login'] = array(
+    $admin_user => array(
+      'password' => $admin_pass,
+    ),
+  );
+}
+
+$i=1;
+
+while (TRUE) {
+
+  $prefix = 'REDIS_' . $i . '_';
+
+  $server_name = getenv($prefix . 'NAME');
+  $server_host = getenv($prefix . 'HOST');
+  $server_port = getenv($prefix . 'PORT');
+
+  if (empty($server_host)) {
+    break;
+  }
+
+  if (empty($server_name)) {
+    $server_name = $server_host;
+  }
+
+  if (empty($server_port)) {
+    $server_port = 6379;
+  }
+
+  $config['servers'][] = array(
+      'name'   => $server_name,
+      'host'   => $server_host,
+      'port'   => $server_port,
+      'filter' => '*',
+  );
+
+  $i++;
+}