add preprod migration doc

doc/upgrade_v10.md

@@ -1,7 +1,10 @@
 
+## Upgrade docker
 
 php composer.phar update
 ./vendor/bin/typo3 referenceindex:update
+> errors
+
 rm public/typo3conf/ext/ot_admin
 rm public/typo3conf/ext/ot_connect
 rm public/typo3conf/ext/ot_core
@@ -98,3 +101,44 @@ Backend is not working anymore, I access to the typo3 install page, and run a db
 I create the new tables
 
 BE is back to life
+Everything seems to be fine, except for the perfs.
+Make it work, then make it fast...
+
+
+## Upgrade sur preprod
+
+cd /var/opentalent/git/ot_typo3
+git pull
+git checkout typo10_migration
+cd /var/www/typo3
+rm composer.json
+nano composer.json >> I copy paste the content of docker/typo3/composer.json
+php7.4 composer.phar self-update --2
+php7.4 composer.phar update
+
+(en root) chown exploitation:www-data public/typo3conf/AdditionalConfiguration.php
+
+I add these lines to AdditionalConfiguration.php
+
+    foreach ($GLOBALS['TYPO3_CONF_VARS']['SYS']['caching']['cacheConfigurations'] as $cacheName => $cacheConfiguration) {
+        $GLOBALS['TYPO3_CONF_VARS']['SYS']['caching']['cacheConfigurations'][$cacheName]['backend'] = \TYPO3\CMS\Core\Cache\Backend\NullBackend::class;
+    }
+
+./vendor/bin/typo3 upgrade:run databaseRowsUpdateWizard
+touch public/typo3conf/ENABLE_INSTALL_TOOL
+
+I access to https://preprod.opentalent.fr/typo3/install.php
+
+db analysis -> alter fields
+
+I remove the lines added to AdditionalConfiguration
+
+db analysis -> add tables
+languages -> update all
+reset be users prefs
+
+./vendor/bin/typo3 referenceindex:update
+
+> plan for 20min
+
+