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Clone a site

Create a new site from an existing one: its settings, and its content and menu links as its cloning rules say.

Needs Sites clone

Part of Sites clone.

Before you start

  • The permission Administer sites.
  • The module: composer require drupal/sites_clone, then drush en sites_clone.
  • A source site created in the admin UI. A site defined in code cannot be cloned: its Clone form answers "Page not found".

Clone

  1. Open the source site's dashboard and click the Clone tab, or choose Clone among the site's operations on All sites.
  2. Enter the Site name. The ID derives from it.
  3. Enter the clone's Hostname, or the Main site and Path prefix of a sub-site. The structure starts as the source's.
  4. With Sites language, a main site that speaks several languages also asks for Languages: untick those the clone does not speak, and choose its Default language.
  5. Open Content. Choose a clone method per content type, and whether to Copy the links of this site’s menus.
  6. Click Clone site.

A batch copies the content and the menu links and points the clone's front, 403 and 404 pages at the copies. You land on the clone's dashboard. The clone starts disabled, like a new site. drush sites:clone asks the same questions (Drush).

Clone methods

Method The clone gets
Ignore content None of the items of this type.
Share content The same items, shared with the source. Their canonical site stays.
Clone content Copies of its own. Share these instead of copying them names items to share instead, like an error page. Not offered for users.

A menu link to a copied item points at the copy; every other link is copied as it is, in its place in the menu.

What the clone gets

The clone gets the source's site type and settings, and its per-site configuration, like the site information, in every language and environment. Name, ID and address are the ones given in the form.

These belong to one site and are not copied:

  • hostnames per environment, hostname aliases, language domains and the URL language source;
  • per-site role assignments;
  • redirects and content overrides.

Cloning rules

Each site's Cloning rules section, a card in the Settings group of its dashboard, holds a method per content type and the menu-link choice; the clone form starts from them. It takes Manage site settings. The site type sets the defaults; without one, content is Ignore content and menu links are copied. The form skips a rule the site type does not make available to its sites; the type's value applies.