利用logrotate切割nginx日志

为了防止nginx日志日积月累变得很大而不方便查看管理，我们需要用logrotate对nginx的日志按照日期进行归档，以备查看分析nginx的访问记录等信息。

编辑/etc/logrotate.conf文件

# see "man logrotate" for details
# rotate log files weekly
daily

# keep 4 weeks worth of backlogs
rotate 4

# create new (empty) log files after rotating old ones
create

# use date as a suffix of the rotated file
dateext

# uncomment this if you want your log files compressed
#compress

# RPM packages drop log rotation information into this directory
include /etc/logrotate.d

# no packages own wtmp and btmp -- we'll rotate them here
/var/log/wtmp {
    monthly
    create 0664 root utmp
    minsize 1M
    rotate 1
}

/var/log/btmp {
    missingok
    monthly
    create 0600 root utmp
    rotate 1
}
# system-specific logs may be also be configured here.

创建一个nginx文件

# ll /etc/logrotate.d/nginx
-rw-r--r-- 1 root root 246 4月   5 20:09 /etc/logrotate.d/nginx

增加以下内容

/usr/local/nginx/logs/*.log {
    daily
    rotate 31
    missingok
    notifempty
    nocompress
    postrotate
        /bin/kill -USR1 $(cat /usr/local/nginx/logs/nginx.pid 2>/dev/null) 2>/dev/null || :
    endscript
}

强制生成一次日志信息

logrotate -f /etc/logrotate.conf

查看生产的日志，发现日志已经切割了