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发布日期: 2024-12-26

更新日期: 2024-12-26

Nginx + Lua 脚本动态配置

一、安装LuaJIT2

# 安装下载目录
cd /usr/local/src

# 下载地址
wget https://github.com/openresty/luajit2/archive/refs/tags/v2.1-20201229.tar.gz
# 解压缩文件夹
tar -zxvf v2.1-20201229.tar.gz

# 编译和安装
make PREFIX=/usr/local/luajit
make install PREFIX=/usr/local/luajit

# 安装lua-devel
yum install lua-devel

# 配置环境变量
vim /etc/profile 
# 添加下方代码
export LUAJIT_LIB=/usr/local/luajit/lib
export LUAJIT_INC=/usr/local/luajit/include/luajit-2.1
# 使/etc/profile 立刻生效
source /etc/profile

# 检查安装情况
lua -v

二、安装Nginx

1.下载nginx

已经安装过nginx的可以看 “4.追加nginx-module”

# 安装依赖库 这些依赖库主要有g++、gcc、openssl-devel、pcre-devel和zlib-devel 
yum -y install make gcc gcc-c++ glibc glibc-devel lsof   
yum -y install pcre pcre-devel  
yum -y install zlib zlib-devel  
yum -y install openssl openssl--devel

# 下载源码包
cd /usr/local/src
wget -d "http://nginx.org/download/nginx-1.8.0.tar.gz"

# 解压 nginx-1.8.0
tar zxvf nginx-1.8.0.tar.gz

2.Nginx Module下载

mkdir -p /usr/local/src/nginx-modules

# ngx_devel_kit 下载
wget https://github.com/vision5/ngx_devel_kit/archive/v0.3.1.tar.gz
tar -xvf v0.3.1.tar.gz

# lua-nginx-module 下载
wget https://github.com/openresty/lua-nginx-module/archive/v0.10.14.tar.gz
tar -xvf v0.10.14.tar.gz

# headers-more-nginx-module 下载
wget https://github.com/openresty/headers-more-nginx-module/archive/v0.33.tar.gz
tar -zxvf v0.33.tar.gz

3.编译nginx

# 编译nginx
./configure \
--prefix=/usr/local/nginx \
--with-http_stub_status_module \
--with-http_ssl_module \
--with-file-aio \
--with-http_sub_module \
--with-http_gzip_static_module \
--with-http_v2_module \
--with-pcre \
--with-http_realip_module \
--with-stream \
--with-stream_ssl_module \
--with-ld-opt="-Wl,-rpath,/usr/local/luajit/lib" \
--add-module=/usr/local/src/nginx-modules/headers-more-nginx-module-0.33 \
--add-module=/usr/local/src/nginx-modules/ngx_devel_kit-0.3.1 \
--add-module=/usr/local/src/nginx-modules/lua-nginx-module-0.10.14

# 安装
make
make install

4.追加nginx-module

# 进入nginx解压目录
cd /usr/local/src/nginx-1.8.0
# 追加nginx-module
./configure 
--prefix=/usr/local/src/nginx-modules 
--add-module=/usr/local/src/nginx-modules/headers-more-nginx-module-0.33 \
--add-module=/usr/local/src/nginx-modules/ngx_devel_kit-0.3.1 \
--add-module=/usr/local/src/nginx-modules/lua-nginx-module-0.10.14
# 编辑，切记没有make install
make

5.Nginx命令

#启动nginx
nginx
#停止nginx
nginx -s stop
#重启nginx
nginx -s reload

6.验证安装情况

cd /usr/local/nginx/sbin/
nginx -v

1.在nginx配置文件中 server段添加如下代码

location /lua {
    default_type 'text/plain';
    content_by_lua 'ngx.say("hello,lua!!!")';
}

2.重启nginx

./nginx -s reload

3.访问：xxx.xxx.xxx.xxx:端口/lua

三、配置

1.Vue反向代理开关控制

worker_processes 5;

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

# events事件指令是设定Nginx的工作模式及连接数上限
events {
    worker_connections 512;
}

http {
    # lua 全局缓存
    lua_shared_dict dyn_ups_zone 10m;

    # include是个主模块指令，实现对配置文件所包含的文件的设定，可以减少主配置文件的复杂度。类似于Apache中的include方法。
    include mime.types;

    default_type application/octet-stream;
    # sendfile参数用于开启高效文件传输模式。将tcp_nopush和tcp_nodelay两个指令设置为on用于防止网络阻塞；
    sendfile on;

    # 8080端口 gzip 反向代理
    server {
    	listen 8080;
        server_name vue;

        # 必须要加 错误页配置
        error_page 500 502 503 504 /50x.html;
        location = /50x.html {
            root html;
        }
        
        #开启gzip
        gzip on;
        ##低于1kb的资源不压缩 
        gzip_min_length 1k;
        ##压缩级别1-9，越大压缩率越高，同时消耗cpu资源也越多，建议设置在5左右。
        gzip_comp_level 7; 
        ##需要压缩哪些响应类型的资源，多个空格隔开。不建议压缩图片.
        gzip_types text/plain application/javascript application/x-javascript text/javascript text/xml text/css;
        ##配置禁用gzip条件，支持正则。此处表示ie6及以下不启用gzip（因为ie低版本不支持）
        gzip_disable "MSIE [1-6]\.";
        ##是否添加“Vary: Accept-Encoding”响应头
        gzip_vary on;

        charset utf8;
        large_client_header_buffers 4 64k;
        client_header_buffer_size 64k;
        client_max_body_size 60m;
        client_body_buffer_size 128k;
        proxy_connect_timeout 600;
        proxy_read_timeout 600;
        proxy_send_timeout 600;
        proxy_buffer_size 64k;
        proxy_buffers 4 32k;
        proxy_busy_buffers_size 64k;
        proxy_temp_file_write_size 64k;

        # vue 静态资源 反向代理
        location / {
            access_by_lua '
                local dynupszone = ngx.shared.dyn_ups_zone;
                local access = dynupszone:get("accessfoo");
                ngx.log(ngx.INFO, "access status: ", access);
                if access == "off" then
                   ngx.status = 403;
                   ngx.say("403 : no auth to visit big-screen");
                   ngx.header["X-Nginx-Header"] = "No Nginx Auth ";
                   ngx.exit(403)
                else
                   ngx.header["X-Nginx-Header"] = "Have Nginx Auth";
                end
            ';

            root /dist/;
            index index.html index.htm;
            try_files $uri $uri/ /index.html;
        }

        # 动态反向代理开关控制入口
        location /config {
            default_type text/plain;
            content_by_lua_block {
                local foo = ngx.req.get_uri_args()["foo"]
                if foo == nil then
                    ngx.say("usage: /config?foo=off, or /config?foo=on")
                    local dynupszone = ngx.shared.dyn_ups_zone;
                    local access = dynupszone:get("accessfoo");
                    ngx.say("now status: ", access)
                    return;
                end
                ngx.log(ngx.INFO, "vue can visit: ", foo);
                ngx.say("vue can visit: ", foo);
                ngx.shared.dyn_ups_zone:set("accessfoo", foo);
            }
        }
    }
}

2.动态流量环境切换

worker_processes 2;			#配置nginx工作进程数

events {
    use epoll;
    worker_connections  1024;
}

http {

	# lua 全局缓存
   	lua_shared_dict dyn_ups_zone 10m;
	
	# include是个主模块指令，实现对配置文件所包含的文件的设定，可以减少主配置文件的复杂度。类似于Apache中的include方法。
   	include       mime.types;
   	default_type  application/octet-stream;
	
   	#access_log  logs/access.log  main;
	sendfile        on;

   	gzip  on;
   	tcp_nopush      on;
   	tcp_nodelay     on;
	
	upstream prod-env {
   		server 192.168.0.5:8080;
		keepalive 50;
	}
 
	upstream grayscale-env {
		server 192.168.0.6: 8080;
		keepalive 50;
	}

	upstream default {
   		server 192.168.0.7: 8080;
		keepalive 50;
	}
	
	server {
		listen 80;
		server_name 192.168.0.1;
		charset utf-8;

		# 默认流量环境
	 	set $group "default";
	
		location /api {
			access_by_lua '
                local dynupszone = ngx.shared.dyn_ups_zone;
                local access = dynupszone:get("accessfoo");
                ngx.log(ngx.INFO, "accessfoo status: ", access);
                if access and access == "on" then
                		local headers = ngx.req.get_headers()
    					local staffid = headers["Staff-Id"]
						ngx.log(ngx.INFO, "staffid value: ", staffid);
						if staffid and staffid:sub(-1) == "5" then
							ngx.var.group = "grayscale-env";
						else
							ngx.var.group = “prod-env";
						end
                else
                		ngx.var.group = "default";
                end
          ';
			rewrite ^/api/(.*)$ /api/$1 break;
			proxy_pass http://$group;
			#keepalive_timeout  0;
		}	  	
		
		# 动态灰度环境开关控制入口
      	location /GrayscaleEnvironment {
			default_type text/plain;
          content_by_lua_block {
          	local foo = ngx.req.get_uri_args()["config"]
          	if foo == nil then
             		ngx.say("usage: /GrayscaleEnvironment?config=off, or /GrayscaleEnvironment?config=on")
                	local dynupszone = ngx.shared.dyn_ups_zone;
                	local access = dynupszone:get("accessfoo");
                	ngx.say("Grayscale Environment Default Off: ", access);
                	return;
          	end
                	ngx.log(ngx.INFO, "Grayscale Environment ON: ", foo);
                	ngx.say("Grayscale Environment ON: ", foo);
                	ngx.shared.dyn_ups_zone:set("accessfoo", foo);
            }
        }
	}  	 
}

四、参考文档

Anubis

https://AnubisCL.github.io/2024/12/26/Nginx+Lua%20%E5%8A%A8%E6%80%81%E9%85%8D%E7%BD%AE/

本博客所有文章除特別声明外，均采用 CC BY 4.0 许可协议。转载请注明来源 Anubis !

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2024-12-26 前端

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Nginx + Lua 脚本 动态配置

Nginx + Lua 脚本 动态配置

一、安装LuaJIT2

二、安装Nginx

1.下载nginx

2.Nginx Module下载

3.编译nginx

4.追加nginx-module

5.Nginx命令

6.验证安装情况

1.在nginx配置文件中 server段 添加如下代码

2.重启nginx

3.访问：xxx.xxx.xxx.xxx:端口/lua

三、配置

1.Vue反向代理 开关控制

2.动态流量环境切换

四、参考文档

Nginx + Lua 脚本动态配置

Nginx + Lua 脚本动态配置

1.在nginx配置文件中 server段添加如下代码

1.Vue反向代理开关控制