XAMPP running as `daemon` user instead of `www-data` about docker-xampp HOT 2 CLOSED

Hey, good question thanks for bringing this up! I'm also not 100% sure about the intended behavior so I did some digging:

1. I tried adding a USER www-data right before the final CMD which caused the command to be executed by the www-data. This was the output for latest version of xampp:

Starting XAMPP for Linux 8.2.4-0...
You need to be root to perform this action.

This shows that the script is intended to be started as root.

2. The script calls apachectl which, in turn, calls httpd -k start. Using strace on it reveals that it daemonizes itself in a way that it uses UID 1.

My take on this situation is that using UID 1 is a "feature" of XAMPP. In this case, I think that is the expected behavior. I agree it is surprising but I also don't see an easy way how to fix this at the level of Dockerfile without turning this into my own XAMPP "distribution". Therefore, I won't make any changes to this behavior.

I'll leave this open for a little while in case there are any additional questions

from docker-xampp.

You're right! This is actually intended behaviour. It seems the user and group is set in the configuration file /opt/lampp/etc/httpd.conf under the <IfModule unixd_module> section.

User daemon
Group daemon

from docker-xampp.