Nginx日志按日期存放

Nginx日志如果放在一个文件里，可能文件会变得很大，可以通过按日期存放，避免单文件过大。

http {
    include mime.types;
    default_type application/octet-stream;
    sendfile on;
    keepalive_timeout 65;

    log_format main '$remote_addr - $remote_user [$time_local] "$request" '
    '$status $body_bytes_sent "$http_referer" '
    '"$http_user_agent" "$http_x_forwarded_for"';
    map $time_iso8601 $logdate {
        '~^(?<ymd>\d{4}-\d{2}-\d{2})' $ymd;
    }
    access_log off;


    server {
        listen 80;
        server_name localhost;
        root C:/dev/nginx/html;
        index index.html;
        charset utf-8;
        access_log logs/access-$logdate.log main;
    }
}