CentOS6 环境 Nginx自动安装脚本

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在 CentOS6 系列的操作系统上，通过脚本自动化下载 Nginx 源码，并配置安装 Nginx 服务，最后将 nginx 添加到系统服务，可通过“service nginx start”等命令操作 nginx 服务器。

Nginx 安装脚本（install-nginx.sh）：

#!/bin/bash
 
# installation configuration
NGINX_VERSION=1.12.2
NGINX_SRC_PATH=/root
NGINX_BIN_PATH=/usr/local/nginx
 
# disable firewall
service iptables stop
setenforce 0
 
# installation dependence
yum install -y pcre-devel zlib-devel openssl-devel
 
# download nginx source package
cd ${NGINX_SRC_PATH}
wget http://nginx.org/download/nginx-${NGINX_VERSION}.tar.gz
 
# unzip source package
tar -xzvf nginx-${NGINX_VERSION}.tar.gz
cd ./nginx-${NGINX_VERSION}
 
# install nginx
./configure –prefix=${NGINX_BIN_PATH} –with-http_ssl_module
make & make install
 
# add nginx to system service
ln -s ${NGINX_BIN_PATH}/sbin/nginx /usr/sbin/nginx
cd ${NGINX_BIN_PATH}
wget https://www.linuxidc.com/linux/nginx/config/service-nginx #如果这个文件无法下载，请下文的 service-nginx.sh 文件代替
mv service-nginx /etc/init.d/nginx
cd /etc/init.d/
chmod 755 nginx
 
# test nginx service
service nginx restart

将 Nginx 添加到系统服务（service-nginx.sh）：

#!/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
 
nginx=”/usr/sbin/nginx”
prog=$(basename $nginx)
 
NGINX_CONF_FILE=”/etc/nginx/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 $nginx -HUP
    RETVAL=$?
    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