fix: +fixed php-fpm container now have 'pdo' and 'pdo_mysql' extensions and now can use 'mariadb' service

docker-compose.yml

@@ -20,7 +20,9 @@ services:
       - '3306'
 
   php-fpm:
-    image: php:7-fpm
+    build:
+      context: .
+      dockerfile: ./docker/php-fpm-ext
     container_name: php-fpm
     depends_on:
       - mariadb

docker/php-fpm-ext

@@ -0,0 +1,5 @@
+ENV PHP_EXTRA_CONFIGURE_ARGS='
+
+FROM php:7-fpm
+
+RUN docker-php-ext-install -j$(nproc) pdo pdo_mysql