第二十二节、Nginx服务

模块选项配置说明
配置参考文章

一、服务安装

• 首先安装前置服务[root@localhost ~]# yum -y install gcc pcre pcre-devel zlib zlib-devel openssl openssl-devel
  zlib:Nginx提供gzip模块，需要zlib库支持。
  openssl:Nginx提供SSL功能
  pcre:支持地址重写rewrite功能
• 创建服务使用的用户和组并锁定无法登录

[root@localhost ~]# groupadd nginx
[root@localhost ~]# useradd -r -g nginx nginx
[root@localhost ~]# usermod -s /sbin/nologin nginx

-编译安装文件
编译部分配置项说明
--with-xxx 代表默认没有打开的功能
--without-xxx 代表默认打开的功能
--prefix=path 代表安装路径
--sbin-path=path sbin路径
--conf-path 配置文件
--pid-path 代表进程号保存文件
--error-log-path错误日志
--lock-path 锁文件
--user ps看到的启动进程用户
--group ps看到的启动进程用户所在组
--with-http_ssl_module 支持SSL模块
--with-http_flv_module 为flv伪流媒体服务端提供支持

[root@localhost nginx-1.12.2]# ls
auto  CHANGES  CHANGES.ru  conf  configure  contrib  html  LICENSE  man  README  src
 [root@localhost nginx-1.12.2]# ./configure  --prefix=/usr/local/nginx  --conf-path=/usr/local/nginx/nginx.conf  --error-log-path=/usr/local/nginx/log/error.log  --pid-path=/usr/local/nginx/nginx.pid  --lock-path=/usr/local/nginx/nginx.lock  --user=nginx  --group=nginx  --with-http_ssl_module  --with-http_flv_module
 [root@localhost nginx-1.12.2]# make
 [root@localhost nginx-1.12.2]# make install

二、配置开机自启动及设置为系统服务

源码安装的启动方式

#检查安装参数
[root@localhost nginx]# /usr/local/nginx/sbin/nginx -V
nginx version: nginx/1.12.2
built by gcc 4.4.7 20120313 (Red Hat 4.4.7-4) (GCC) 
built with OpenSSL 1.0.1e-fips 11 Feb 2013
TLS SNI support enabled
configure arguments: --prefix=/usr/local/nginx --conf-path=/usr/local/nginx/nginx.conf --error-log-path=/usr/local/nginx/log/error.log --pid-path=/usr/local/nginx/nginx.pid --lock-path=/usr/local/nginx/nginx.lock --user=nginx --group=nginx --with-http_ssl_module --with-http_flv_module
#启动
[root@localhost nginx]# /usr/local/nginx/sbin/nginx 
[root@localhost nginx]# ps -ef|grep nginx
root       3947      1  0 13:09 ?        00:00:00 nginx: master process /usr/local/nginx/sbin/nginx
nginx      3948   3947  0 13:09 ?        00:00:00 nginx: worker process      
root       3950   1291  0 13:09 pts/0    00:00:00 grep nginx
[root@localhost nginx]# netstat -tulnp|grep 80
tcp        0      0 0.0.0.0:80                  0.0.0.0:*                   LISTEN      3963/nginx   
#停止
[root@localhost nginx]# /usr/local/nginx/sbin/nginx  -s stop
#使运行中的Nginx 服务重新加载nginx.conf 文件并生效
[root@localhost nginx]# /usr/local/nginx/sbin/nginx  -s reload
#优雅停止服务，关闭监听端口，停止接收新的连接，然后把当前正在处理的连接全部处理完，最后再退出进程。
[root@localhost nginx]# /usr/local/nginx/sbin/nginx  -s quit

修改配置文件

[root@localhost nginx]# vim /usr/local/nginx/nginx.conf
  1 ######nginx.conf########
  2 user  nginx nginx;       #修改服务的用户和组
  3 worker_processes  1;  #启动工作进程数量,一般等于CPU的核心数

设置开机启动脚本

[root@localhost init.d]# vim nginx  
  1 #! /bin/bash
  2 # Description: Startup script for webserver on CentOS. cp it in /etc/init.d and
  3 # chkconfig --add nginx && chkconfig nginx on
  4 # then you can use server command control nginx
  5 #
  6 # chkconfig: 2345 08 99
  7 # description: Starts, stops nginx
  8 
  9 set -e
 10 PATH=$PATH:/usr/local/nginx/sbin/
 11 DESC="nginx daemon"
 12 NAME=nginx
 13 DAEMON=/usr/local/nginx/sbin/$NAME
 14 CONFIGFILE=/usr/local/nginx/nginx.conf
 15 PIDFILE=/usr/local/nginx/nginx.pid
 16 SCRIPTNAME=/etc/init.d/$NAME
 17 
 18 # Gracefully exit if the package has been removed.
 19 test -x $DAEMON || exit 0
 20 
 21 d_start() {
 22 $DAEMON -c $CONFIGFILE || echo -n " already running"
 23 }
 24 
 25 d_stop() {
 26 kill -QUIT `cat $PIDFILE` || echo -n " not running"
 27 }
 28 
 29 d_reload() {
 30 kill -HUP `cat $PIDFILE` || echo -n " can't reload"
31 }
 32 
 33 case "$1" in
 34 start)
 35 echo -n "Starting $DESC: $NAME"
 36 d_start
 37 echo "."
 38 ;;
 39 stop)
 40 echo -n "Stopping $DESC: $NAME"
 41 d_stop
 42 echo "."
 43 ;;
 44 reload)
 45 echo -n "Reloading $DESC configuration..."
 46 d_reload
 47 echo "reloaded."
 48 ;;
 49 restart)
 50 echo -n "Restarting $DESC: $NAME"
 51 d_stop
 52 sleep 1
 53 d_start
 54 echo "."
 55 ;;
 56 *)
 57 echo "Usage: $SCRIPTNAME {start|stop|restart|force-reload}" >&2
 58 exit 3
 59 ;;
 60 esac
 61 exit 0
[root@localhost init.d]# chmod 700 /etc/init.d/nginx  

添加开机自启动

[root@localhost init.d]# chkconfig --add nginx 
[root@localhost init.d]# chkconfig --level 2345 nginx on  
[root@localhost init.d]# chkconfig |grep nginx
nginx           0:关闭 1:关闭 2:启用    3:启用  4:启用  5:启用  6:关闭

服务相关命令/etc/init.d/nginx start|stop|restart|reload
启动配置参考文章

日志切割脚本

vi /usr/local/nginx/sbin/cut_nginx_log.sh

#!/bin/bash 
# This script run at 00:00 
# The Nginx logs path 
 logs_path="/usr/local/nginx/logs/"
 logs_bak_path="/data/logs/nginx/"

 mkdir -p ${logs_bak_path}$(date -d "yesterday" +"%Y")/$(date -d "yesterday" +"%m")/
 cp ${logs_path}access.log ${logs_bak_path}$(date -d "yesterday" +"%Y")/$(date -d "yesterday" +"%m")/access_$(date -d "yesterday" +"%Y%m%d").log
 rm -rf ${logs_path}*.log
 kill -USR1 `cat /var/run/nginx.pid`