2.7-configuration-management.md

Configuration Management

According to the Drupal Configuration API Overview:

The configuration API provides a central place for modules to store configuration data. This data can be simple configuration like your site name, or more complex information managed with configuration entities, such as views and content types.

Configuration is a place to store information that you would want to synchronize from development to production. This information is often created during site building and is not typically generated by regular users during normal site operation.

Configuration management in D8 works similar to how Features module did in D7, but now ships out as part of core.

By default configuration data is stored in the config database table. The configuration management system built into core allows you to import and export these configuration settings across multiple environments and formats.

Exporting Configurations

Exporting Full Site Configurations

1. Make a configuration change to your system, such as the name of your site.
2. Navigate to Configuration -> Development -> Configuration Synchronization -> Export
3. Click Export
4. Your browser will download an exported file configuration tarball (e.g. config-localhost-8888-2017-04-01-04-10.tar.gz)

Exporting Single Items

1. Make a configuration change to your system, such as the name of your site.
2. Navigate to Configuration -> Development -> Configuration Synchronization -> Export -> Single item
3. Select the type and name of the config item you wish to export.
4. You can now copy and paste this configuration elsewhere for future reference.

Viewing Configuration Changes

1. Make a configuration change to your system for something that was previously exported, such as the name of your site.

2. Navigate to Configuration -> Development -> Configuration Synchronization

3. Click View Differences

• The Active column indicates the current setting in your site.
• The Staged column indicates the value from the previous exportation.

Importing Configurations

Importing Full Site Configurations

1. Obtain a previous export tarball (See Exporting Full Site Configuration above)
2. Navigate to Configuration -> Development -> Configuration Synchronization -> Import
3. Click Import
4. After reviewing your changes, click Import All.

Importing Single Items

1. Obtain YAML from a previous export.
2. Navigate to Configuration -> Development -> Configuration Synchronization -> Import -> Single item
3. Select the type and name of the config item you wish to import and press Import
4. Click Confirm

Drush

View configuration settings using drush:

drush config-get system.site
drush config-get system.site name
drush config-get system.site mail
# or
drush cget system.site
drush cget system.site name
drush cget system.site mail

Set configuration settings using drush:

drush config-set system.site name 'My Company Website'
drush config-set system.site mail '[email protected]'
# or
drush cset system.site name 'My Company Website'
drush cset system.site mail '[email protected]'

To export configurations using drush:

drush config-export
# or
drush cex

^ This is similar to regenerating features in D7.

To import configurations using drush:

drush config-import
# or
drush cim

^ This is similar to reverting features in D7.

Configuration Storage

You can alter the storage location of your configuration in your settings.php file (or comparable file in your system):

<?php
/**
 * Location of the site configuration files.
 *
 * The $config_directories array specifies the location of file system
 * directories used for configuration data. On install, the "sync" directory is
 * created. This is used for configuration imports. The "active" directory is
 * not created by default since the default storage for active configuration is
 * the database rather than the file system. (This can be changed. See "Active
 * configuration settings" below).
 *
 * The default location for the "sync" directory is inside a randomly-named
 * directory in the public files path. The setting below allows you to override
 * the "sync" location.
 *
 * If you use files for the "active" configuration, you can tell the
 * Configuration system where this directory is located by adding an entry with
 * array key CONFIG_ACTIVE_DIRECTORY.
 *
 * Example:
 * @code
 *   $config_directories = array(
 *     CONFIG_SYNC_DIRECTORY => '/directory/outside/webroot',
 *   );
 * @endcode
 */

Additional Resources:

• d8cards.com : Day 01 - Configuration Management in D8
• drupal.org - Configuration Management
• drupal.org - Configuration API Overview
• drush config

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