drupal-settings.md

Drupal settings

Below you will find instructions on configuring you Drupal project to work with DDE. Some settings are required, others are optional or enahncements. Please review carefully.

DB connection settings (required)

Containers do not have static IP addresses assigned. DB connection settings can be obtained from the environment variables.

Below are sample settings for Drupal 7 and Drupal8.
If you change the DB node name in docker-compose.yml (e.g. mysql instead of db) then this has to be updated, since variable names will change as well.

Drupal 7 and 8

# DDE DB connection settings.
$databases['default']['default'] = array (
  'database' => getenv('DB_1_ENV_MYSQL_DATABASE'),
  'username' => getenv('DB_1_ENV_MYSQL_USER'),
  'password' => getenv('DB_1_ENV_MYSQL_PASSWORD'),
  'host' => getenv('DB_1_PORT_3306_TCP_ADDR'),
  'driver' => 'mysql',
);

File permissions fix (required)

With NFS mounts Drupal may complain about files directory not being writable. This is a "false-negative" however can be annoying and break certain things. For a workaround add the following to your setting.php file.

Drupal 7

# Workaround for permission issues with NFS shares in Vagrant
$conf['file_chmod_directory'] = 0777;
$conf['file_chmod_file'] = 0666;

Drupal 8

# Workaround for permission issues with NFS shares in Vagrant
$settings['file_chmod_directory'] = 0777;
$settings['file_chmod_file'] = 0666;

You may also have to reset permissions on the existing files folder. The following command will recursively set folders to 777 (rwx) and files to 666 (rw)

chmod -R +rwX files

Reverse proxy settings (optional)

If using boot2docker-vagrant, you are most likely using it's vhost-proxy. In that case add the following to settings.php:

Drupal 7

# Reverse proxy configuration (DDE's vhost-proxy)
$conf['reverse_proxy'] = TRUE;
$conf['reverse_proxy_addresses'] = array($_SERVER['REMOTE_ADDR']);
// HTTPS behind reverse-proxy
if (
  isset($_SERVER['HTTP_X_FORWARDED_PROTO']) && $_SERVER['HTTP_X_FORWARDED_PROTO'] == 'https' &&
  !empty($conf['reverse_proxy']) && in_array($_SERVER['REMOTE_ADDR'], $conf['reverse_proxy_addresses'])
) {
  $_SERVER['HTTPS'] = 'on';
  // This is hardcoded because there is no header specifying the original port.
  $_SERVER['SERVER_PORT'] = 443;
}

Drupal 8

# Reverse proxy configuration (DDE's vhost-proxy)
$settings['reverse_proxy'] = TRUE;
$settings['reverse_proxy_addresses'] = array($_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;
}

Memcache settings (optional)

Drupal 7

Add the following lines to settings.php to point Drupal to the memcached node. Replace </path/to/memcache-module> with path to memcache module in your project. E.g. sites/all/modules/contrib/memcache

// Memcache
$conf['cache_backends'][] = '</path/to/memcache-module>/memcache.inc';
$conf['cache_default_class'] = 'MemCacheDrupal';
$conf['cache_class_cache_form'] = 'DrupalDatabaseCache';
$conf['memcache_servers'] = array(
  'memcached.hello-world.docker:11211' => 'default',
);