11.2. Setting up the database

Procedure

1. Install the database:

   $ sudo yum install -y postgresql postgresql-server postgresql-devel

2. Initialize the database:

   $ sudo postgresql-setup initdb

   This command creates the /var/lib/pgsql/data directory, in which the data is stored.

3. Start the database:

   $ sudo systemctl start postgresql.service

4. When the database is running, create your rails user:

   $ sudo -u postgres createuser -s rails

   Note that the user created has no password.