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I created a Docker container using Docker-Compose
The archive Docker-Compose.yml is in the directory /home//Dockerfolder. 
The file is configured as follows:
####
# ATENTION:
# Replace all occurences of sandbox with your project's name
####
# v2 syntax
version: '2'
# Named volumes
volumes:
# MySQL Data
sandbox-mysql-data:
 driver: local
services:
# MySQL (5.7)
mysql:
 image: mysql:5.7
 container_name: sandbox-mysql
 volumes:
  - sandbox-mysql-data:/var/lib/mysql
 ports:
  - "3306:3306"
 environment:
  - MYSQL_ROOT_PASSWORD=sandbox
  - MYSQL_DATABASE=sandbox
  - MYSQL_USER=sandbox
  - MYSQL_PASSWORD=sandbox
# PHP (with Nginx)
# you can change from nginx to apache, just change session 'image'
app:
 image: ambientum/php:7.2-nginx
 container_name: sandbox-app
volumes:
  - .:/var/www/app
 ports:
  - "80:8080"
 links:
  - mysql
# Laravel Queues
queue:
 image: ambientum/php:7.2
 container_name: sandbox-queue
 command: php artisan queue:listen
 volumes:
  - .:/var/www/app
 links:
  - mysql
I created the index.php file in the same directory to test the server, but no information was returned. Is the file in the right place? How I can view it in the browser?
/var/www/app?– Pedro Augusto
yes, I read that this container folder is mapped to a folder on the host.
– user67223