Feature: #86303 - Variants for site’s base

See Issue #86303 See Issue #87831

Description

The site configuration allows to specify variants of the site’s base. Take the following example: The base of a site is set to https://www.domain.tld but the staging environment uses https://staging.domain.tld and the local development uses https://www.domain.local.

The expression language feature is used to define which variant is taken into account.

Update since TYPO3 9.5.5:

This is also possible for site languages (however only via editing the respective config.yaml file manually, not via the TYPO3 Backend yet). See example yaml file below.

Impact

The base of a site can be changed depending on a condition. Typical examples are:

  • applicationContext == "Production": Check the application context
  • getenv("mycontext") == "production: Check a custom environment variable

This is an example where the default site has base variants, but also a translation (in this case German) has a custom domain or sub-domain instead of a first part of the path segment of the URL.

rootPageId: 1
base: 'https://www.example.com/'
baseVariants:
  -
    base: 'https://example.local/'
    condition: 'applicationContext == "Development"'
  -
    base: 'https://staging.example.com/'
    condition: 'applicationContext == "Production/Sydney"'
  -
    base: 'https://testing.example.com/'
    condition: 'applicationContext == "Testing/Paris"'
languages:
  -
    title: 'Global'
    enabled: true
    languageId: '0'
    base: /
    typo3Language: default
    locale: en_UK.UTF-8
    iso-639-1: en
    navigationTitle: English
    hreflang: gb-en
    direction: ''
    flag: gb
  -
    title: 'DE'
    enabled: true
    languageId: '1'
    base: https://example.de/'
    baseVariants:
      -
        base: 'https://de.example.local/'
        condition: 'applicationContext == "Development"'
      -
        base: 'https://staging.example.de/'
        condition: 'applicationContext == "Production/Sydney"'
      -
        base: 'https://testing.example.de/'
        condition: 'applicationContext == "Testing/Paris"'
    typo3Language: de
    locale: de_DE.UTF-8
    iso-639-1: de
    navigationTitle: Deutsch
    hreflang: de-de
    direction: ''
    fallbackType: strict
    flag: de