Removed dependency on .env file causing issue with Travis CL

docker-compose.yml

@@ -16,7 +16,7 @@ services:
             - "80:80"
             - "443:443"
         environment:
-            - NGINX_HOST=${NGINX_HOST}
+            - NGINX_HOST=localhost
         command: /bin/sh -c "envsubst '$$NGINX_HOST' < /etc/nginx/conf.d/default.template > /etc/nginx/conf.d/default.conf && nginx -g 'daemon off;'"
         restart: always
         depends_on:
@@ -32,7 +32,7 @@ services:
 #                labels: "Nginx"
 
     php:
-        image: nanoninja/php-fpm:${PHP_VERSION}
+        image: nanoninja/php-fpm:7.2
         container_name: php
         restart: always
         volumes:
@@ -68,17 +68,16 @@ services:
 #                labels: "PHPMyAdmin"
 
     mysqldb:
-        image: mariadb:${MARIADB_VERSION}
+        image: mariadb:10.3.8
         container_name: mysql
-        container_name: ${MYSQL_HOST}
         restart: always
         env_file:
             - ".env"
         environment:
-            - MYSQL_DATABASE=${MYSQL_DATABASE}
-            - MYSQL_ROOT_PASSWORD=${MYSQL_ROOT_PASSWORD}
-            - MYSQL_USER=${MYSQL_USER}
-            - MYSQL_PASSWORD=${MYSQL_PASSWORD}
+            - MYSQL_DATABASE=test
+            - MYSQL_ROOT_PASSWORD=root
+            - MYSQL_USER=dev
+            - MYSQL_PASSWORD=dev
         ports:
             - "3306:3306"
         volumes: