rsyslog收集nginx日志配置

rsyslog日志收集配置

rsyslog服务器收集各服务器的日志，并汇总，再由logstash处理

请查看上一篇文章 http://bbotte.blog.51cto.com/6205307/1613571

客户端/发送端 web服务器

# yum install rsyslog -y
# vim /etc/rsyslog.conf
*.* @192.168.10.1:514
# vim /etc/bashrc                              #收集其他服务器的操作命令
export PROMPT_COMMAND='{ msg=$(history 1 | { read x y; echo $y; });logger "[euid=$(whoami)]":$(who am i):[`pwd`]"$msg"; }'
# . /etc/bashrc
# crontab -e
*/1 * * * * /bin/echo `date`
# service rsyslog restart

服务器/收集端 rsyslog收集，logstash服务器

# yum install rsyslog -y
# vim /etc/rsyslog.conf
$ModLoad imudp                                 #启用udp，514端口收集日志
$UDPServerRun 514
$template logformat,"%FROMHOST-IP% %structured-data% %timegenerated% %msg%\n"  #定义日志模板
$template DynFile,"/var/log/%$year%%$month%%$day%.log"                         #定义日志路径
:rawmsg, contains, "CROND" ?DynFile;logformat   #含有"CROND"日志，输出为/var/log/%$year%%$month%%$day%.log
:rawmsg, contains, "CROND" ~ 
# service rsyslog restart
# tail -f /var/log/20150212.log                 #查看crontab的log
# tail -f /var/log/messages                     #查看客户端输入的命令

#rsyslog测试log传送完毕，下面是用rsyslog收集其他服务器日志：

# vim /etc/sysconfig/rsyslog
SYSLOGD_OPTIONS="-c 5 -Q -x"

# vim /etc/rsyslog.conf                         #把下面几行注释
#$template logformat,"%FROMHOST-IP% %structured-data% %timegenerated% %msg%\n"
#$template DynFile,"/var/log/%$year%%$month%%$day%.log"
#:rawmsg, contains, "CROND" ?DynFile;logformat 
# service rsyslog restart
#现在服务端收集客户端日志，并保存在/var/log各日志文件中，tail -f 查看

rsyslog其他配置 选项：

日志级别:

―――――――――――――――――――――――-

debug �有调式信息的，日志信息最多

info �一般信息的日志，最常用

notice �最具有重要性的普通条件的信息

warning �警告级别

err �错误级别，阻止某个功能或者模块不能正常工作的信息

crit �严重级别，阻止整个系统或者整个软件不能正常工作的信息

alert �需要立刻修改的信息

emerg �内核崩溃等严重信息

none �什么都不记录

从上到下，级别从低到高，记录的信息越来越少

#过滤日志, 由:号开头

:msg, contains, “error” /var/log/error.log

:msg, contains, “error” ~ # 忽略包含error的日志

#如果要把不同服务器发送过来的日志保存到不同的文件, 可以这样操作:

:fromhost-ip, isequal, “192.168.10.2″ /var/log/host1002.log

:FROMHOST-IP, isequal, “192.168.10.3″ /var/log/host1003.log

#现在是要把web服务器的nginx日志收集到logstash服务器上，nginx原生不支持syslog，所以要打补丁

# 为nginx打syslog补丁

# tar -xzf nginx-1.4.7.tar.gz
# cd nginx-1.4.7
# ./configure --user=www --group=www --prefix=/usr/local/nginx \
--with-http_stub_status_module --with-http_ssl_module --with-http_gzip_static_module \
--with-pcre=/root/pcre-8.35 --with-http_realip_module --with-http_image_filter_module
# make
# make install
#以上是安装nginx的步骤，下面打补丁
# git clone https://github.com/splitice/nginx_syslog_patch
# patch -p1 < /root/nginx-1.4.7/nginx_syslog_patch/syslog-1.5.6.patch
patching file src/core/ngx_cycle.c
patching file src/core/ngx_log.c
patching file src/core/ngx_log.h
patching file src/http/modules/ngx_http_log_module.c
patching file src/http/ngx_http_core_module.c
Hunk #2 succeeded at 4895 (offset 2 lines).
Hunk #3 succeeded at 4913 (offset 2 lines).
Hunk #4 succeeded at 4952 (offset 2 lines).
patching file src/http/ngx_http_request.c
Hunk #1 succeeded at 517 (offset -14 lines).
Hunk #2 succeeded at 798 (offset -23 lines).
Hunk #3 succeeded at 2002 (offset -23 lines).
# ./configure --user=www --group=www --prefix=/usr/local/nginx \
--with-http_stub_status_module --with-http_ssl_module --with-http_gzip_static_module \
--with-pcre=/root/pcre-8.35 --with-http_realip_module --with-http_image_filter_module \
--add-module=/root/nginx-1.4.7/nginx_syslog_patch/
# make
# make install
# /usr/local/nginx/sbin/nginx -V							 #查看编译的配置参数
nginx version: nginx/1.4.7
built by gcc 4.4.7 20120313 (Red Hat 4.4.7-11) (GCC) 
TLS SNI support enabled
configure arguments: --user=www --group=www --prefix=/usr/local/nginx \
--with-http_stub_status_module --with-http_ssl_module --with-http_gzip_static_module \
--with-pcre=/root/pcre-8.35 --with-http_realip_module --with-http_image_filter_module \
--add-module=/root/nginx-1.4.7/nginx_syslog_patch/
# grep -v ^.*# /usr/local/nginx/conf/nginx.conf|sed '/^$/d'  #nginx配置
worker_processes  1;
syslog local6 nginx;
events {
  worker_connections  1024;
}
http {
  include	   mime.types;
  default_type  application/octet-stream;
  log_format  main  '$remote_addr - $remote_user [$time_local] "$request" '
            '$status $body_bytes_sent "$http_referer" '
            '"$http_user_agent" "$http_x_forwarded_for"';
  sendfile		on;
  keepalive_timeout  65;
  server {
    listen	   80;
    server_name  localhost;
index index.html;
root /var/www;
access_log  syslog:notice|logs/host1.access.log main;
error_log   syslog:notice|logs/host1.error.log;
    error_page   500 502 503 504  /50x.html;
    location = /50x.html {
      root   html;
    }
  }
}