Installing and configuring an external PostgreSQL database

Last updated: 6/22/2026

The following steps describe how to install and configure an external PostgreSQL database.

For more information, refer to the PostgreSQL database documentation at https://www.postgresql.org/.

Procedure

Download a PostgreSQL instance from https://www.postgresql.org/download/linux/ and install it.
For more information on the supported versions of the databases, see Compatible databases.
Connect to PostgreSQL as the default postgres superuser et create the mm user with a password using the following command:
```
$ sudo su - postgres
$ psql postgres
postgres=# CREATE ROLE mm WITH PASSWORD 'mm123!';
```
Create the mm database and grant privileges on this new database to the mm user:
```
postgres=# CREATE DATABASE mm;
postgres=# GRANT ALL PRIVILEGES ON DATABASE mm TO mm;
```

Disconnect and switch to mm user:

postgres=# \q
$ su – mm
$ psql -d mm -U mm

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