Docker Compose Explained: One File, One Container (2026)

To build a Nextcloud stack using Docker Compose, you'll need to create four separate services: MariaDB (database), Redis (cache), Apache or Nginx (web server), and PHP-FPM (PHP backend). For simplicity, we'll focus on the PHP-FPM service in this part of the exercise. Here's how you can set up the Nextcloud PHP-FPM service using Docker Compose.

Part 3: Nextcloud PHP-FPM

1. Create Directory for PHP-FPM Service

   bash
    
   1$ cd ~
   2$ mkdir -p nc-php-fpm && cd nc-php-fpm

2. Create .env File

   Create a file named .env in the nc-php-fpm directory with the following content:

   plaintext
    
   1NEXTCLOUD_ADMIN_USER=admin
   2NEXTCLOUD_ADMIN_PASSWORD=nextcloudadmin
   3MYSQL_HOST=nc-db # This assumes you've already set up MariaDB service in nc-db directory.
   4MYSQL_DATABASE=nextcloud
   5MYSQL_USER=nextcloud
   6MYSQL_PASSWORD=nextcloud

3. Create docker-compose.yml File

   Create a file

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