Bacula-Web won't play nice.

Community Bacula 15.0.2 on RHEL 9 from https://www.bacula.org/packages/<access key>/rpms/15.0.2/el9/x86_64/

Bacula-web installed with Composer

I set up "authentication": 

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sudo -u apache php bwc setupauth

It's now time to setup the application back-end database
[Important!] Please note that all information stored in the user database will be destroyed
Can we proceed ?
  [0] yes
  [1] no
 > 0
You have selected: yes
Deleting users authentication database
Database file removed
Creating database schema
Database created
User creation
Username: admin
Email: <redacted>
Password: <redacted>
1 user created successfuly
You can now connect to your Bacula-Web instance using provided credentials

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If I leave the database section of "config.php" commented out,

// PostgreSQL bacula catalog
// $config[0]['label'] = 'Prod Server';
// $config[0]['host'] = 'db-server.domain.com';
// $config[0]['login'] = 'bacula';
// $config[0]['password'] = 'otherstrongpassword';
// $config[0]['db_name'] = 'bacula';
// $config[0]['db_type'] = 'pgsql';
// $config[0]['db_port'] = '5432';

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I get this: (abbreviated)

200~Bacula-Web logo Bacula-Web
 Oops, it looks like something went wrong somehow :(
 Configuration error
 Configuration error: catalog id <0> is empty or does not exist
 File: /var/www/html/bacula-web/core/Db/Database.php on line 54 in function App\Libs\FileConfig::get_Value
 File: /var/www/html/bacula-web/core/Db/DatabaseFactory.php on line 36 in function Core\Db\Database->__construct
 File: /var/www/html/bacula-web/application/config/container-bindings.php on line 68 in function Core\Db\DatabaseFactory::getDatabase

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If I fill it in, 

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// PostgreSQL bacula catalog
$config[0]['label'] = 'Prod Server';
$config[0]['host'] = 'db-server.domain.com';
$config[0]['login'] = 'bacula';
$config[0]['password'] = '<redacted>';
$config[0]['db_name'] = 'bacula';
$config[0]['db_type'] = 'pgsql';
$config[0]['db_port'] = '5432';

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I get this: (abbreviated)

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200~Bacula-Web logo Bacula-Web
 Oops, it looks like something went wrong somehow :(
 Database error
 SQLSTATE[08006] [7] FATAL: Ident authentication failed for user "bacula"
 File: /var/www/html/bacula-web/core/Db/Database.php on line 81 in function PDO->__construct
 File: /var/www/html/bacula-web/core/Db/DatabaseFactory.php on line 36 in function Core\Db\Database->__construct
 File: /var/www/html/bacula-web/application/config/container-bindings.php on line 68 in function Core\Db\DatabaseFactory::getDatabase

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Any clues out there for this clueless one ?