Local settings.php for Drupal 8

settings.local.php

<?php

/**
 * Display all PHP errors.
 */
error_reporting(E_ALL);
ini_set('display_errors', TRUE);

/**
 * Enable development services.
 */
$settings['container_yamls'][] = DRUPAL_ROOT . '/sites/development.services.yml';
$settings['container_yamls'][] = DRUPAL_ROOT . '/sites/blt.development.services.yml';

/**
 * Disable render cache.
 */
$settings['cache']['bins']['render'] = 'cache.backend.null';

/**
 * Disable dynamic page cache.
 */
$settings['cache']['bins']['dynamic_page_cache'] = 'cache.backend.null';

/**
 * Disable caching for migrations. This will store migrations in memory and not
 * in the database, making it easier to develop custom migrations.
 */
$settings['cache']['bins']['discovery_migration'] = 'cache.backend.memory';

/**
 * Skip file system permissions hardening.
 *
 * The system module will periodically check the permissions of your site's
 * site directory to ensure that it is not writable by the website user. For
 * sites that are managed with a version control system, this can cause problems
 * when files in that directory such as settings.php are updated, because the
 * user pulling in the changes won't have permissions to modify files in the
 * directory.
 */
$settings['skip_permissions_hardening'] = TRUE;

/**
 * Disable simplesaml locally
 */
$config['simplesamlphp_auth.settings']['activate'] = FALSE;

/**
 * Disable mail locally
 */
$config['system.mail']['interface']['default'] = 'test_mail_collector';

/**
 * Show all error messages, with backtrace information.
 *
 * In case the error level could not be fetched from the database, as for
 * example the database connection failed, we rely only on this value.
 */
$config['system.logging']['error_level'] = 'all';

/**
 * System performance.
 */
$config['system.performance']['cache']['page']['use_internal'] = FALSE;
$config['system.performance']['css']['preprocess']             = FALSE;
$config['system.performance']['css']['gzip']                   = FALSE;
$config['system.performance']['js']['preprocess']              = FALSE;
$config['system.performance']['js']['gzip']                    = FALSE;
$config['system.performance']['response']['gzip']              = FALSE;

/**
 * Views settings.
 */
$config['views.settings']['ui']['sql_query']['enabled']           = TRUE;
$config['views.settings']['ui']['show']['performance_statistics'] = TRUE;

/**
 * Solr config.
$config['search_api.server.pantheon']['dependencies']['module'] = ['search_api_solr'];
$config['search_api.server.pantheon']['backend']                = 'search_api_solr';
$config['search_api.server.pantheon']['backend_config']         = [
  'connector'           => 'standard',
  'connector_config'    => [
    'scheme'           => 'http',
    'host'             => 'solr.bostoninteractive.com',
    'port'             => '8983',
    'path'             => '/solr',
    'core'             => '', // Set to your core
    'timeout'          => 5,
    'index_timeout'    => 5,
    'optimize_timeout' => 10,
    'commit_within'    => 1000,
    'solr_version'     => '',
    'http_method'      => 'AUTO',
  ],
  'retrieve_data'       => FALSE,
  'highlight_data'      => FALSE,
  'excerpt'             => FALSE,
  'skip_schema_check'   => FALSE,
  'site_hash'           => FALSE,
  'suggest_suffix'      => TRUE,
  'suggest_corrections' => TRUE,
  'suggest_words'       => FALSE,
];
 */

/**
 * Disable shield.
 */
$config['shield.settings']['user'] = '';

/**
 * Disable CDN
 */
$config['cdn.settings']['status'] = FALSE;

/**
 * Set temp directory.
 */
$config['system.file']['path']['temporary'] = '/tmp';

/**
 * Database settings.
 */
$databases['default']['default'] = [
  'database'  => 'default',
  'username'  => 'user',
  'password'  => 'user',
  'host'      => 'db',
  'driver'    => 'mysql',
  'prefix'    => '',
  'collation' => 'utf8mb4_general_ci',
];

/**
 * Trusted host patterns.
 */
$settings['trusted_host_patterns'][] = '^.+$';

/**
 * Private files.
 */
$settings['file_private_path'] = '/var/www/private';

/**
 * Reverse proxy config.
 */
if (PHP_SAPI !== 'cli') {
  $settings['reverse_proxy']           = TRUE;
  $settings['reverse_proxy_addresses'] = [$_SERVER['REMOTE_ADDR']];
  // HTTPS behind reverse-proxy
  if (
    isset($_SERVER['HTTP_X_FORWARDED_PROTO']) && $_SERVER['HTTP_X_FORWARDED_PROTO'] == 'https' &&
    !empty($settings['reverse_proxy']) && in_array($_SERVER['REMOTE_ADDR'], $settings['reverse_proxy_addresses'])
  ) {
    $_SERVER['HTTPS'] = 'on';
    // This is hardcoded because there is no header specifying the original port.
    $_SERVER['SERVER_PORT'] = 443;
  }
}