drupalcampbristol/web/sites/default/settings.docker.php

<?php

/**
 * Database settings.
 */
$databases['default']['default'] = [
  'driver' => 'mysql',
  'host' => 'db',
  'database' => getenv('MYSQL_DATABASE'),
  'username' => getenv('MYSQL_USER'),
  'password' => getenv('MYSQL_PASSWORD'),
];

/**
 * Trusted host configuration.
 */
$settings['trusted_host_patterns'] = [
  '^dcbristol\.docksal$',
  '^.+\.dcbristol\.docksal$',
];

$settings['hash_salt'] = 'werewr';