diff --git a/Dockerfile b/Dockerfile
index 74bba7f..4dcad29 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -3,6 +3,8 @@ FROM php:7.2-apache
 # Use the default production configuration
 RUN mv "$PHP_INI_DIR/php.ini-production" "$PHP_INI_DIR/php.ini"
 
+RUN docker-php-ext-install pdo_mysql
+
 # Enable rewrite module for httpd.
 RUN ln -s /etc/apache2/mods-available/rewrite.load /etc/apache2/mods-enabled/rewrite.load
 
diff --git a/api/DBconnect.php b/api/DBconnect.php
index 89996d1..e338acf 100644
--- a/api/DBconnect.php
+++ b/api/DBconnect.php
@@ -9,10 +9,10 @@
 
 class DBconnect {
 
-    private static $host = getenv('DB_HOST') ?: "localhost";
-    private static $user = getenv('DB_USER') ?: "nermin";
-    private static $password = getenv('DB_PASS') ?: "";
-    private static $schema = getenv('DB_SCHEMA') ?: "dialectsdb";
+    private static $host = "localhost";
+    private static $user = "nermin";
+    private static $password = "";
+    private static $schema = "dialectsdb";
     private static $instance = null;
 
     private function __construct() {
@@ -31,6 +31,21 @@ class DBconnect {
      * @return PDO instance
      */
     public static function getInstance() {
+
+        // Check for config overrides via enviroment variables.
+        if (getenv('DB_HOST')) {
+            self::$host = getenv('DB_HOST');
+        }
+        if (getenv('DB_USER')) {
+            self::$user = getenv('DB_USER');
+        }
+        if (getenv('DB_PASS')) {
+            self::$password = getenv('DB_PASS');
+        }
+        if (getenv('DB_SCHEMA')) {
+            self::$schema = getenv('DB_SCHEMA');
+        }
+
         if (!self::$instance) {
             $config = "mysql:host=" . self::$host
                 . ";dbname=" . self::$schema;
diff --git a/docker-compose.yml b/docker-compose.yml
index 6e9a6d0..1175a91 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -6,7 +6,7 @@ services:
     ports:
       - "5000:80"
     volumes:
-      - <pot do zvočnih datotek>:/var/lib/www/iknb/resources/audio
+      - <pot do zvočnih datotek>:/var/www/html/resources/audio
     environment:
       DB_HOST: db
       DB_USER: nermin
diff --git a/index.html b/index.html
index 1027420..6564092 100644
--- a/index.html
+++ b/index.html
@@ -28,10 +28,10 @@
         <script src="vendor/ui-leaflet.js"></script>
         -->
 
-        <script src="http://angular-ui.github.io/ui-leaflet/bower_components/leaflet/dist/leaflet.js"></script>
-        <script src="http://angular-ui.github.io/ui-leaflet/bower_components/angular-simple-logger/dist/angular-simple-logger.js"></script>
-        <script src="http://angular-ui.github.io/ui-leaflet/dist/ui-leaflet.min.js"></script>
-        <link  href="http://angular-ui.github.io/ui-leaflet/bower_components/leaflet/dist/leaflet.css" rel="stylesheet" />
+        <script src="https://angular-ui.github.io/ui-leaflet/bower_components/leaflet/dist/leaflet.js"></script>
+        <script src="https://angular-ui.github.io/ui-leaflet/bower_components/angular-simple-logger/dist/angular-simple-logger.js"></script>
+        <script src="https://angular-ui.github.io/ui-leaflet/dist/ui-leaflet.min.js"></script>
+        <link  href="https://angular-ui.github.io/ui-leaflet/bower_components/leaflet/dist/leaflet.css" rel="stylesheet" />
 
         <script src="vendor/leaflet.pattern.js"></script>
         <!--<script src="vendor/leaflet.extra-markers.min.js"></script>
@@ -68,4 +68,4 @@
         <app></app>
 
     </body>
-</html>
\ No newline at end of file
+</html>