Create & link a database

Create a database, generate credentials, and optionally attach them to a site automatically.

Who can use this page? Site Managers and Users need a linked site they manage.

Steps

1. Databases → New Database
2. Choose engine: MariaDB / MySQL, PostgreSQL, or MongoDB
3. Enter a database name
4. Link a site that you manage
5. Leave automatic environment variables enabled (recommended)
6. Create

One-time credentials

The success panel shows the full connection URI / password once:

• Copy into a password manager
• Redeploy or restart the app so it picks up new env vars
• Dismissing the panel loses the secret — NitHost does not store recoverable DB user passwords for you to re-read

Auto environment keys

Engine	Keys added (defaults)
PostgreSQL	DATABASE_URL (sensitive, runtime), DB_NAME
MongoDB	MONGO_URL (sensitive, runtime), DB_NAME

If a key already exists on the site, NitHost reports a collision — rename, disable auto variables, or merge manually in Environment variables.

Permissions model

• Each database has a dedicated owner role
• Application logins get full or read-only access to that database only
• Usernames are unique cluster-wide (PostgreSQL)

Site access

Customer database management requires a link to a site you manage. If the correct site is missing from the picker, ask your Site Manager to check your assignment.

Related

• Environment variables
• Import & export
• PostgreSQL · MongoDB