up log_format.conf with warning about variables in a logs path

time spent: 0.5

Author: Friz-zy

README.md

@@ -34,7 +34,7 @@ Also I don't agree with nginx microcache for every site, see known traps.
 So here I'm trying to put together all (my) good patterns and knowledges, and organize it as simple as possible in compare with complex examples above. So anyone will be able to copy this configs and get good nginx setup out of the box :)
 
 Time track:
-- [Filipp Frizzy](https://github.com/Friz-zy/) 41.75h
+- [Filipp Frizzy](https://github.com/Friz-zy/) 42.25h
 
 ### Support
 

conf.d/0-log_format.conf

@@ -26,6 +26,11 @@ log_format detailed '$remote_addr - $remote_user [$time_local] '
 access_log /var/log/nginx/access.log main buffer=512k flush=1s;
 
 # useful in usual vm setup for splitting host's logs
-# but I prefer configuring it in server blocks
+# but it should be configured in each server block
+# access_log      /var/log/nginx/{{ site }}-access.log main buffer=512k flush=1s;
+# error_log       /var/log/nginx/{{ site }}-error.log error;
+
+# another case: use variable in a path,
+# but this will work only for access log path
+# and can be targeted by attacker
 # access_log /var/log/nginx/$host-access.log main buffer=512k flush=1s;
-# error_log  /var/log/nginx/$host-error.log warn;