restarting the server about lighttpd-docker HOT 1 CLOSED

not able to restart the server forcing me to restart the image everytime i change something in the log

Not really an issue as containers should be considered immutable according to current best practices (see e.g. https://cloud.google.com/solutions/best-practices-for-operating-containers#immutability).

/var/log # /usr/sbin/lighttpd -f /etc/lighttpd/lighttpd.conf restart

This can't work because there is no restart command for lighttpd, so this command is starting a new lighttpd process, which fails because one is already running and bound to port 80.
You would have to use SIGHUP to gracefully restart lighttpd (http://blog.lighttpd.net/articles/2007/09/02/there-is-an-angel-for-lighty/).
I would however strongly advise against doing this to adhere to the immutability principle: you should instead modify the conf file on the host, bind-mount it to the container or add it to the image, and then start the container.

from lighttpd-docker.