应用服务

CentOS 编译安装 Nginx 1.12

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Nginx是一款轻量级的Web服务器/反向代理服务器及电子邮件（IMAP/POP3）代理服务器，并在一个BSD-like 协议下发行。由俄罗斯的程序设计师Igor Sysoev所开发，供俄国大型的入口网站及搜索引擎Rambler（俄文：Рамблер）使用。其特点是占有内存少，并发能力强，事实上nginx的并发能力确实在同类型的网页服务器中表现较好。

安装约定

nginx源码路径：/usr/local/src
nginx安装路径：/usr/local/nginx
nginx配置文件路径：/usr/local/nginx/conf/nginx.conf
nginx虚拟主机路径：/usr/local/nginx/conf/vhosts

源码包下载地址

http://nginx.org/en/download.html

下载源代码包

# cd /usr/local/src/
# wget http://nginx.org/download/nginx-1.12.x.tar.gz

安装gcc、make等

# yum -y install gcc gcc-c++ make

安装编译nginx所需的库

# yum -y install pcre pcre-devel zlib zlib-devel openssl openssl-devel

添加nginx用户和组

# groupadd -g 500 nginx
# useradd -u 500 -g nginx -c "Nginx web server" -d /var/lib/nginx -s /sbin/nologin nginx

安装nginx

# cd ..
# tar zxvf nginx-1.12.x.tar.gz
# cd nginx-1.12.x
# ./configure --prefix=/usr/local/nginx \
--user=nginx --group=nginx \
--with-http_ssl_module \
--with-http_v2_module \
--with-http_realip_module \
--with-http_addition_module \
--with-http_gzip_static_module \
--with-http_stub_status_module \
--with-pcre \
--with-ipv6 \
--with-stream
# make
# make install

配置nginx启动脚本

将如下代码复制粘贴到/etc/init.d/nginx

#!/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:      /usr/local/nginx/conf/nginx.conf
# config:      /etc/sysconfig/nginx
# pidfile:     /usr/local/nginx/logs/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

nginx="/usr/local/nginx/sbin/nginx"
prog=$(basename $nginx)

sysconfig="/etc/sysconfig/$prog"
lockfile="/var/lock/subsys/nginx"
pidfile="/usr/local/nginx/logs/${prog}.pid"

NGINX_CONF_FILE="/usr/local/nginx/conf/nginx.conf"

[ -f $sysconfig ] && . $sysconfig


start() {
    [ -x $nginx ] || exit 5
    [ -f $NGINX_CONF_FILE ] || exit 6
    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 -p $pidfile $prog
    retval=$?
    echo
    [ $retval -eq 0 ] && rm -f $lockfile
    return $retval
}

restart() {
    configtest_q || return 6
    stop
    start
}

reload() {
    configtest_q || return 6
    echo -n $"Reloading $prog: "
    killproc -p $pidfile $prog -HUP
    echo
}

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

configtest_q() {
    $nginx -t -q -c $NGINX_CONF_FILE
}

rh_status() {
    status $prog
}

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

# Upgrade the binary with no downtime.
upgrade() {
    local oldbin_pidfile="${pidfile}.oldbin"

    configtest_q || return 6
    echo -n $"Upgrading $prog: "
    killproc -p $pidfile $prog -USR2
    retval=$?
    sleep 1
    if [[ -f ${oldbin_pidfile} && -f ${pidfile} ]];  then
        killproc -p $oldbin_pidfile $prog -QUIT
        success $"$prog online upgrade"
        echo 
        return 0
    else
        failure $"$prog online upgrade"
        echo
        return 1
    fi
}

# Tell nginx to reopen logs
reopen_logs() {
    configtest_q || return 6
    echo -n $"Reopening $prog logs: "
    killproc -p $pidfile $prog -USR1
    retval=$?
    echo
    return $retval
}

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

启动nginx

# chmod +x /etc/init.d/nginx
# service nginx start

配置nginx开机启动

# chkconfig nginx on

设置nginx环境变量

# vim /etc/profile

在其文件末尾添加如下变量

export PATH=$PATH:/usr/local/nginx/sbin

或者用以下命令添加

# sed -i '/unset -f pathmunge/a\export PATH=$PATH:/usr/local/nginx/sbin' /etc/profile

运行如下命令使环境变量生效

# source /etc/profile