A Docker Compose configuration that sets up MariaDB, PostgreSQL, MongoDB, and multiple web-based database management tools (Adminer for SQL databases and Mongo Express for MongoDB).

I've created a Docker Compose configuration that sets up a complete database development environment. Here's what's included and how to use it:

1. Databases:

   • MariaDB (port 3306)
   • PostgreSQL (port 5432)
   • MongoDB (port 27017)

2. Management Interfaces:

   • Adminer (port 8080) - for MariaDB and PostgreSQL
   • Mongo Express (port 8081) - for MongoDB

3. Key Features:

   • Persistent data storage using named volumes
   • Secure network isolation using a custom bridge network
   • Environment variables for easy configuration
   • Automatic container restart policy
   • Basic authentication for added security

To use this configuration:

1. Save the content to a file named docker-compose.yml
2. Run the following command in the same directory:

docker compose up -d

Access the management interfaces:

• Adminer: http://localhost:8080

  • System: Choose MariaDB/PostgreSQL
  • Server: Use service name (mariadb/postgres)
  • Username: user
  • Password: password

• Mongo Express: http://localhost:8081

  • Username: admin
  • Password: pass

Default credentials:

• MariaDB:

  • User: user
  • Password: password
  • Root Password: rootpassword

• PostgreSQL:

  • User: user
  • Password: password

• MongoDB:

  • Root Username: root
  • Root Password: rootpassword

To stop the services:

docker compose down

To stop and remove all data:

docker compose down -v

Would you like me to make any adjustments to the configuration or explain any part in more detail?