CentOS下安装Nginx并设置开机启动

一. 安装环境

# 安装gcc、安装pcre、安装zlib、安装openssl
yum -y install gcc zlib zlib-devel pcre-devel openssl openssl-devel

二. 下载Nginx,并安装

# ① wget下载
      wget http://nginx.org/download/nginx-1.10.2.tar.gz
# ②  解压下载文件
      tar -zxvf  nginx-1.10.2.tar.gz
# ③  进入刚刚解压目录执行
      sudo ./configure
      # 指定安装目录，增加参数 --prefix= /usr/nginx
      # 如果不指定路径，可以通过whereis nginx 进行查询
      # 默认安装在 /usr/local/ngnix
# ④ 继续执行
     make
# ⑤  继续执行
     make install

以上步骤完成后，nginx在centos系统已经安装完

三. Nginx的开机启动

# 1. 在/etc/init.d/目录下创建nginx文件
vim /etc/init.d/nginx
# 2. 注意修改一下nginx的执行文件路径以及配置文件路径

复制下方代码到创建的nginx文件中

#!/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
# Source function library.
. /etc/rc.d/init.d/functions
# Source networking configuration.
. /etc/sysconfig/network
# Check that networking is up.
[ "$NETWORKING" = "no" ] && exit 0
#指定nginx执行文件路径
nginx="/usr/local/nginx/sbin/nginx"
prog=$(basename $nginx)
#指定nginx配置文件路径
NGINX_CONF_FILE="/usr/local/nginx/conf/nginx.conf"
[ -f /etc/sysconfig/nginx ] && . /etc/sysconfig/nginx
lockfile=/var/lock/subsys/nginx
make_dirs() {
   # make required directories
   user=`$nginx -V 2>&1 | grep "configure arguments:" | sed 's/[^*]*--user=\([^ ]*\).*/\1/g' -`
   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
}
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 $nginx -HUP
    RETVAL=$?
    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

# 3. wq保存脚本文件后设置文件的执行权限
chmod a+x /etc/init.d/nginx
# 4. 将nginx服务加入chkconfig管理列表
chkconfig --add /etc/init.d/nginx
# 5. 加入后可以使用以下命令管理nginx
service nginx start
service nginx stop
# 6.设置终端模式开机启动
chkconfig nginx on

重启linux后测试nginx是否开机启动

ps aux|grep nginx