I didn't find the way to activate ldap authentication.
Is it adding the configuration manually in /etc/pleroma/config.exs with the required informations described in https://docs-develop.pleroma.social/config.html#ldap
Is it adding ENV variable to the pleroma service ?
BTW, is erlang-eldap included in the OTP version ?
Working on Pleroma package for YunoHost: https://github.com/YunoHost-Apps/pleroma_ynh/pull/87