How to cut nginx logs by $host-access.log files?

Question

Nginx

There is a proxying nginx in front of the virtual machines, I want to cut the logs by domains into the $host-access.log files of the same name with nginx initially, but something doesn’t work like a stone flower.

http {

upstream first-upstream {
    server 12.34.56.1:80;
}

#access_log  /var/log/nginx/$host-access.log;

server {
    listen        80 default_server;

    location / {
        proxy_pass  http://first-upstream;
        #access_log  /var/log/nginx/$host-access.log;
}

Doesn't work anywhere including a line access_log. Falls into error.log:

...testing "/etc/nginx//html" existence failed (2: No such file or directory) while logging request...

Sysoev solved this issue in some strange way, but I do not have root, but bunches of upstreams of different IPs.

Answer 1

So describe root, it is written quite specifically. It is clear that you do not need it, but it is needed for logging to work =)

Answer 2

server {
server_name localhost.com;
# Folder with site content (handy when it matches the domain name)
root /var/www/localhost;
# Setting up logs, each virtual domain has its own log
access_log /var/log/nginx/localhost.com-access.log;
error_log /var/log/nginx/localhost.com-error.log;
I recently wrote a note here, look there it is habrahabr.ru/post/164401/

Answer 3

I'll just quote the documentation that no one reads anyway:

Variables can be used in the file path (0.7.6+), but such logs have some limitations:
[...]

• at each entry in the log, the existence of the root directory for the request is checked - if this directory does not exist, then the log is not created. Therefore, root and access_log must be described at the same level:
  

      server {
          root       /spool/vhost/data/$host;
          access_log /spool/vhost/logs/$host;
          ...
  

@ nginx.org/r/access_log/ru

Answer 4

Do not forget that access logs in nginx are not needed because they duplicate Apache, and you don’t need static that worked validly.
But it will add load to the server.