PS_COUNTRY list ?

After having googled for a while I still can't figure out where I'm supposed to find country and language codes.

I've tried PS_LANGUAGE=fr and PS_COUNTRY=CH for switzerland but had this error :

lasticot_new      | PrestaShop\PrestaShop\Core\Localization\RTL\Exception\GenerationException: Cannot generate BO themes: "/var/www/html/admin-dev" is not a directory in /var/www/html/src/Core/Localization/RTL/Processor.php:178
lasticot_new      | Stack trace:
lasticot_new      | #0 /var/www/html/classes/Language.php(261): PrestaShop\PrestaShop\Core\Localization\RTL\Processor->process()
lasticot_new      | #1 /var/www/html/classes/Language.php(1164): LanguageCore->add(true, false, false)
lasticot_new      | #2 /var/www/html/classes/Language.php(1437): LanguageCore::checkAndAddLanguage('he', Array, false, Array)
lasticot_new      | #3 /var/www/html/src/PrestaShopBundle/Install/Install.php(657): LanguageCore::installFirstLanguagePack('he', Array, Array)
lasticot_new      | #4 /var/www/html/src/PrestaShopBundle/Install/Install.php(1212): PrestaShopBundle\Install\Install->PrestaShopBundle\Install\{closure}()
lasticot_new      | #5 /var/www/html/src/PrestaShopBundle/Install/Install.php(658): PrestaShopBundle\Install\Install->callWithUnityAutoincrement(Object(Closure))
lasticot_new      | #6 /var/www/html/src/PrestaShopBundle/Install/Install.php(460): PrestaShopBundle\Install\Install->installLanguages()
lasticot_new      | #7 /var/www/html/install/controllers/console/process.php(226): PrestaShopBundle\Install\Install->installDefaultData('PrestaShop', 'CH', 1, true)
lasticot_new      | #8 /var/www/html/install/controllers/console/process.php(152): InstallControllerConsoleProcess->processInstallDefaultData()
lasticot_new      | #9 /var/www/html/install/classes/controllerConsole.php(139): InstallControllerConsoleProcess->process()
lasticot_new      | #10 /var/www/html/install/index_cli.php(57): InstallControllerConsole::execute(17, Array)

If the list exists somewhere it would be nice to add a link in the documentation.

Thanks !

Start with the Docker installation documentation page linked in the issue, then trace the PS_LANGUAGE and PS_COUNTRY handling through install/controllers/console/process.php and classes/Language.php. Done means the documentation links to an authoritative list of country and language codes and explains how to use them during installation.