docker-jitsi-meet/prosody/rootfs/etc/services.d/10-saslauthd/run

#!/usr/bin/with-contenv bash
if [[ -f /etc/saslauthd.conf ]]; then
  exec s6-setuidgid root saslauthd -a ldap -O /etc/saslauthd.conf -c -m /var/run/saslauthd -n 5 -d
else
    # if saslauthd should not be started,
    # prevent s6 from restarting this script again and again
    s6-svc -O /var/run/s6/services/10-saslauthd
fi