Pick up changes in passwd file

[Markus Gaugusch]

Dear freeradius-experts,

I'm using version 3.0.21, running in docker 
(freeradius/freeradius-server:latest-alpine).

I want to use freeradius to authenticate users against entries in a file 
in the form "username:$2a$10$<bcrypt hash>".

This works quite well, using the following stanza:

passwd my_passwd {
         filename = /opt/etc/raddb/ext/pwd.txt
         format = "*User-Name:Crypt-Password:"
         hash_size = 100
         ignore_nislike = no
         allow_multiple_keys = no
}

However, when the file gets modified, the changes are not picked up by 
freeradius.

I checked the FAQ [1], which suggests to use kill -HUP <PID>, but that 
doesn't work either:

Do you have any hints for me to get this resolved? It works by 
restarting the docker container, but I'd rather avoid this if possible.

Actually, my users are stored by a 3rd party application in a postgresql 
DB. This DB is using a different schema than radiusd (I checked [2]), so 
I decided to generate the file described above. If it would be easy to 
access the DB directly using custom SQL queries ONLY for 
usernames/passwords, that would be another option. I only need 
authentication, no accounting or any logging into the DB.


kind regards,
Markus

[1]: 
https://wiki.freeradius.org/guide/FAQ#how-do-i_how-do-i-get-radius-to-pick-up-changes-in-the-raddb-users-file
[2]: 
https://wiki.freeradius.org/guide/SQL-HOWTO-for-freeradius-3.x-on-Debian-Ubuntu