diff --git a/.env b/.env
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+# NodeJS
+
+APP_ENV=production
+# development, production
+
+APP_PORT=3000
+
+# MariaDB
+MARIADB_HOST=mariadb
+MARIADB_PORT=3306
+MARIADB_USER=user
+MARIADB_PASSWORD=password
+MARIADB_DATABASE=db
+
+# MongoDB
+MONGODB_HOST=mongodb
+MONGODB_PORT=27017
+MONGODB_USER=user
+MONGODB_PASSWORD=password
+MONGODB_DATABASE=db