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1. 准备工作

1.1 选择操作系统

• 推荐操作系统：Ubuntu、CentOS、Debian等Linux发行版。
• 系统要求：确保服务器有足够的CPU、内存和磁盘空间。

1.2 更新系统

• 更新包列表：

  sudo apt update  # 对于Debian/Ubuntu
  sudo yum update  # 对于CentOS/RHEL

  解释：更新系统包列表，确保安装最新版本的软件包。

2. 安装Nginx

2.1 使用包管理器安装

• Debian/Ubuntu：

  sudo apt install nginx

  解释：使用apt包管理器安装Nginx。

• CentOS/RHEL：

  sudo yum install epel-release
  sudo yum install nginx

  解释：首先安装EPEL仓库，然后使用yum包管理器安装Nginx。

2.2 从源码安装（生产首选）

直接放脚本，就不手动了，手动太low了

#!/bin/bash# 定义变量
NGINX_VERSION="1.26.2"  # Nginx版本号
INSTALL_PREFIX="/usr/local/nginx"  # Nginx安装路径
NGINX_USER="www"         # Nginx运行用户
NGINX_GROUP="www"        # Nginx运行组
TEMP_DIR="/tmp/nginx-install"  # 临时目录
SYSTEMD_SERVICE_FILE="/etc/systemd/system/nginx.service"  # systemd服务文件路径# 函数：显示错误信息并退出
error_exit() {echo "Error: $1"exit 1
}# 创建临时目录
mkdir -p $TEMP_DIR || error_exit "Failed to create temporary directory $TEMP_DIR"
cd $TEMP_DIR || error_exit "Failed to change directory to $TEMP_DIR"# 检查并安装必要的依赖项
if [ -f /etc/redhat-release ] || [ -f /etc/rocky-release ]; then# CentOS/RHEL/Rockysudo yum update -y || error_exit "Failed to update packages"sudo yum install -y gcc make pcre pcre-devel zlib zlib-devel openssl openssl-devel || error_exit "Failed to install dependencies"
elif [ -f /etc/debian_version ]; then# Debian/Ubuntuif sudo fuser /var/lib/dpkg/lock-frontend >/dev/null 2>&1; thenecho "Another process is using dpkg. Please wait or terminate the process."ps aux | grep `sudo lsof -t /var/lib/dpkg/lock-frontend`exit 1fisudo apt-get update -y || error_exit "Failed to update package list"sudo apt-get install -y build-essential libpcre3 libpcre3-dev zlib1g zlib1g-dev libssl-dev || error_exit "Failed to install dependencies"
elseerror_exit "Unsupported distribution."
fi# 检查并创建 www 用户和组
if ! getent group $NGINX_GROUP > /dev/null; thensudo groupadd -r $NGINX_GROUP || error_exit "Failed to create group $NGINX_GROUP"
fiif ! id -u $NGINX_USER > /dev/null 2>&1; thensudo useradd -s /sbin/nologin -r -g $NGINX_GROUP $NGINX_USER || error_exit "Failed to create user $NGINX_USER"
fi# 下载 Nginx 源代码包
wget --no-check-certificate https://nginx.org/download/nginx-$NGINX_VERSION.tar.gz || error_exit "Failed to download Nginx source"# 解压文件
tar -zxvf nginx-$NGINX_VERSION.tar.gz || error_exit "Failed to extract Nginx source"# 进入Nginx源代码目录
cd nginx-$NGINX_VERSION || error_exit "Failed to change directory to nginx-$NGINX_VERSION"# 配置Nginx
./configure --prefix=$INSTALL_PREFIX \--with-http_ssl_module \--with-http_v2_module \--with-http_gzip_static_module \--with-http_stub_status_module \--user=$NGINX_USER \--group=$NGINX_GROUP || error_exit "Failed to configure Nginx"# 编译并安装
make || error_exit "Failed to compile Nginx"
sudo make install || error_exit "Failed to install Nginx"# 检查安装是否成功
if [ -f $INSTALL_PREFIX/sbin/nginx ]; thenecho "Nginx installed successfully!"
elseerror_exit "Nginx installation failed."
fi# 生产环境优化
# 设置Nginx运行目录的所有者和组
sudo chown -R $NGINX_USER:$NGINX_GROUP $INSTALL_PREFIX || error_exit "Failed to set ownership for $INSTALL_PREFIX"# 创建Nginx服务文件
cat <<EOF | sudo tee $SYSTEMD_SERVICE_FILE > /dev/null || error_exit "Failed to create systemd service file"
[Unit]
Description=The NGINX HTTP and reverse proxy server
After=network.target[Service]
Type=forking
PIDFile=$INSTALL_PREFIX/logs/nginx.pid
ExecStartPre=$INSTALL_PREFIX/sbin/nginx -t
ExecStart=$INSTALL_PREFIX/sbin/nginx
ExecReload=$INSTALL_PREFIX/sbin/nginx -s reload
ExecStop=/bin/kill -s QUIT \$MAINPID
PrivateTmp=true[Install]
WantedBy=multi-user.target
EOF# 重新加载systemd配置
sudo systemctl daemon-reload || error_exit "Failed to reload systemd configuration"# 启动Nginx服务
sudo systemctl start nginx || error_exit "Failed to start Nginx service"# 设置Nginx开机自启
sudo systemctl enable nginx || error_exit "Failed to enable Nginx service on boot"# 创建符号链接
sudo ln -s $INSTALL_PREFIX/sbin/nginx /usr/local/bin/nginx# 手动测试配置文件
nginx -t
if [ $? -ne 0 ]; thenecho "Nginx configuration test failed. Check the error log for more details."sudo tail -n 20 $INSTALL_PREFIX/logs/error.logexit 1
elseecho "Nginx configuration test passed."
fi# 清理临时文件
rm -rf $TEMP_DIR || error_exit "Failed to clean up temporary files"# 输出启动命令
echo "Nginx installed and configured successfully!"
echo "To manage Nginx, use the following commands:"
echo "  Start: sudo systemctl start nginx"
echo "  Stop: sudo systemctl stop nginx"
echo "  Restart: sudo systemctl restart nginx"
echo "  Status: sudo systemctl status nginx"

使用说明：
将上述脚本保存为文件，例如 install_nginx.sh。
给脚本执行权限：chmod +x install_nginx.sh。
执行脚本：./install_nginx.sh