安装nignx1.14，并且打补丁，反向代理健康监控，ssl，解决自启动报pid错误

//安装git，下载check_module的健康模块
yum install git
git clone https://github.com/yaoweibin/nginx_upstream_check_module.git

// 上传并下载nginx源码，解压
tar xvf nginx-1.14.2.tar.gz

// 安装打补丁的工具
yum -y install patch

// 进入nginx源码目录，第一层
cd nginx-1.14.2

//打源码补丁
patch -p1 </root/nginx_upstream_check_module/check_1.14.0+.patch

// 以下为编译nginx所需的lib
yum install gcc-c++
yum install -y pcre pcre-devel
yum install -y zlib zlib-devel
yum install -y openssl openssl-devel

cd nginx-1.14.2

// 配置，安装目录为 /usr/nginx ，add-module 的目录为上面git后的目录
./configure --prefix=/usr/nginx --with-http_ssl_module --add-module=/root/nginx_upstream_check_module/
 make install

cd /usr/nginx
cd sbin
./nginx

配置反向代理

建立upstream

#keepalive_timeout 0;
keepalive_timeout 65;

#gzip on;

upstream yiwiki {
　　server 127.0.0.1:8080;
　　server 112.126.56.244;
　　check interval=3000 rise=2 fall=5 timeout=2000 type=http;
　　check_http_expect_alive http_2xx http_3xx;
　　ip_hash;
}

server {
listen 80;
server_name localhost;

.......

配置server 80口

 server {
        listen       80;
        server_name  localhost;
        rewrite ^(.*)$ https://$host$1 permanent;

        #charset koi8-r;

        #access_log  logs/host.access.log  main;

        location / {
            root   html;
            index  index.html index.htm;
        }

        #error_page  404              /404.html;

        # redirect server error pages to the static page /50x.html
        #
        error_page   500 502 503 504  /50x.html;
        location = /50x.html {
            root   html;
        }

}

配置443 ssl口

 server {
        listen       443 ssl;
        server_name  localhost;

# 在conf目录建立cert目录，拷贝证书文件至此
        ssl_certificate     cert/5089556_www.yiwiki.cn.pem;
        ssl_certificate_key  cert/5089556_www.yiwiki.cn.key;

#        ssl_session_cache    shared:SSL:1m;
        ssl_session_timeout  5m;

        ssl_ciphers  ECDHE-RSA-AES128-GCM-SHA256:ECDHE:ECDH:AES:HIGH:!NULL:!aNULL:!MD5:!ADH:!RC4;
        ssl_prefer_server_ciphers  on;

        ssl_protocols TLSv1 TLSv1.1 TLSv1.2;
        location / {
    #        root   html;
    #        index  index.html index.htm;

                proxy_pass http://yiwiki/;
         }

        location /status {
                check_status;
        }
    }

停止重启

cd /usr/nginx/sbin
./nginx -s stop
./nginx

建立自启动脚本

 这个文件需要修改的是有2个地方，

一个是，

#!/bin/sh
#
# nginx - this script starts and stops the nginx daemon
#
# chkconfig:   - 85 15
# description:  NGINX is an HTTP(S) server, HTTP(S) reverse 
#               proxy and IMAP/POP3 proxy server
# processname: nginx
# config:      /etc/nginx/nginx.conf
# config:      /etc/sysconfig/nginx
# pidfile:     /var/run/nginx.pid

#########################上面的pid文件，需要在服务器配置文件/usr/nginx/conf/nginx.conf中，去掉pid注释，并且配置为上面的这个目录。

# Source function library.
. /etc/rc.d/init.d/functions

# Source networking configuration.
. /etc/sysconfig/network

# Check that networking is up.
[ "$NETWORKING" = "no" ] && exit 0

######################## 需要修改为实际的安装目录的可执行文件
nginx="/usr/nginx/sbin/nginx"
prog=$(basename $nginx)

#######################需要修改为实际的配置服务器文件的所在位置
NGINX_CONF_FILE="/usr/nginx/conf/nginx.conf"

[ -f /etc/sysconfig/nginx ] && . /etc/sysconfig/nginx

lockfile=/var/lock/subsys/nginx

make_dirs() {
   # make required directories
   user=`$nginx -V 2>&1 | grep "configure arguments:.*--user=" | sed 's/[^*]*--user=([^ ]*).*/1/g' -`
   if [ -n "$user" ]; then
      if [ -z "`grep $user /etc/passwd`" ]; then
         useradd -M -s /bin/nologin $user
      fi
      options=`$nginx -V 2>&1 | grep 'configure arguments:'`
      for opt in $options; do
          if [ `echo $opt | grep '.*-temp-path'` ]; then
              value=`echo $opt | cut -d "=" -f 2`
              if [ ! -d "$value" ]; then
                  # echo "creating" $value
                  mkdir -p $value && chown -R $user $value
              fi
          fi
       done
    fi
}

start() {
    [ -x $nginx ] || exit 5
    [ -f $NGINX_CONF_FILE ] || exit 6
    make_dirs
    echo -n $"Starting $prog: "
    daemon $nginx -c $NGINX_CONF_FILE
    retval=$?
    echo
    [ $retval -eq 0 ] && touch $lockfile
    return $retval
}

stop() {
    echo -n $"Stopping $prog: "
    killproc $prog -QUIT
    retval=$?
    echo
    [ $retval -eq 0 ] && rm -f $lockfile
    return $retval
}

restart() {
    configtest || return $?
    stop
    sleep 1
    start
}

reload() {
    configtest || return $?
    echo -n $"Reloading $prog: "
    killproc $prog -HUP
    retval=$?
    echo
}

force_reload() {
    restart
}

configtest() {
  $nginx -t -c $NGINX_CONF_FILE
}

rh_status() {
    status $prog
}

rh_status_q() {
    rh_status >/dev/null 2>&1
}

case "$1" in
    start)
        rh_status_q && exit 0
        $1
        ;;
    stop)
        rh_status_q || exit 0
        $1
        ;;
    restart|configtest)
        $1
        ;;
    reload)
        rh_status_q || exit 7
        $1
        ;;
    force-reload)
        force_reload
        ;;
    status)
        rh_status
        ;;
    condrestart|try-restart)
        rh_status_q || exit 0
            ;;
    *)
        echo $"Usage: $0 {start|stop|status|restart|condrestart|try-restart|reload|force-reload|configtest}"
        exit 2
esac

 在自启动脚本里，pid，有一个/var/run/nginx.pid，回到nginx.conf

打开pid注释并且，将目录指向 /var/run/nginx.pid ,需要提前建立目录和pid空文件。然后重启nignx，,ps aux | grep nginx 杀死进程，重启。

#user  nobody;
worker_processes  1;

#error_log  logs/error.log;
#error_log  logs/error.log  notice;
#error_log  logs/error.log  info;

#pid        logs/nginx.pid;
#    以下为 关键代码，需要改成和nginx启动脚本一致的目录文件
pid          /var/run/nginx.pid;

events {
    worker_connections  1024;
}

chkconfig --add /etc/init.d/nginx

chkconfig nginx on

systemctl daemon-reload

systemctl enable nginx

systemctl start nginx