restore www-data dir
chown -R www-data:www-data /data/services/nextcloud
find ./nextcloud -type f -exec chmod 640 '{}' \;
find ./nextcloud -type d -exec chmod 750 '{}' \;

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login redirect 303:
chmod a+rwx /tmp inside docker as root

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docker exec -it --user www-data nextcloud-app-1 php occ list