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Zuul for Nginx&Lua
基于Nginx和Lua module。需要安装Nginx Lua模块或者直接下载openresty编译安装。
安装和配置ngx-lua-zuul
下载代码到/path/to/nginx/lua/lib/
git clone http://github.com/tietang/ngx-lua-zuul --depth=1
配置nginx.conf
从nginx.conf.default 复制nginx.conf,也可以copy下面的例子并保存为nginx.conf,以快速运行。
在nginx.conf的http节点中添加:
lua_package_path "/Users/tietang/nginx/nginx/lua/lib/?.lua;;"; lua_shared_dict discovery 10m; lua_shared_dict apps_count 1m; lua_shared_dict apps_res_time 10m; lua_shared_dict api_count 10m; lua_shared_dict api_res_time 10m; init_by_lua ' discovery = require "discovery" json=require "cjson" balancer=require "robin" router = require "router" '; init_worker_by_lua ' discovery:schedule() ';
location 中添加:
location / { set $bk_host ''; # default_type text/html; access_by_lua_file lua/lib/app_route.lua; proxy_set_header Host $host; proxy_set_header X-Real-IP $remote_addr; proxy_pass http://$bk_host; log_by_lua_file lua/lib/stats.lua; # }
下面是一个完整的例子:
#user nobody;worker_processes 2;#error_log logs/error.log;#error_log logs/error.log notice;#error_log logs/error.log info;#pid logs/nginx.pid;events { worker_connections 1024; } http { include mime.types; default_type application/octet-stream; #log_format main '$remote_addr - $remote_user [$time_local] "$request" ' # '$status $body_bytes_sent "$http_referer" ' # '"$http_user_agent" "$http_x_forwarded_for"'; #access_log logs/access.log main; sendfile on; #tcp_nopush on; #keepalive_timeout 0; keepalive_timeout 65; #gzip on; ##lua 代码路径 lua_package_path "/Users/tietang/nginx/nginx/lua/lib/?.lua;;"; ##一些共享缓存 lua_shared_dict discovery 10m; lua_shared_dict apps_count 1m; lua_shared_dict apps_res_time 10m; lua_shared_dict api_count 10m; lua_shared_dict api_res_time 10m; lua_shared_dict metrics 10m; lua_shared_dict metrics_time 10m; ##初始化 init_by_lua ' discovery = require "discovery" json=require "cjson" balancer=require "robin" router = require "router" '; ## 初始化定时器 init_worker_by_lua ' discovery:schedule() '; server { listen 8000; server_name localhost; #charset koi8-r; #access_log logs/host.access.log main; location = / { set $dir $document_root; root $dir/html; index index.html index.htm; } # Dashboard路径 location ^~ /_dashboard { set $dir "./html"; # root $dir/html/; alias $dir; index index.html index.htm; } # 静态文件路径 location ^~ /public/ { set $dir "./html/public/"; alias $dir; } # 一些管理功能-例子统计 location = /_admin/stats { default_type text/html; content_by_lua_file lua/lib/stats_show.lua; } location = /_admin/stats.json { default_type application/json; content_by_lua_file lua/lib/stats_show_json.lua; } location = /_admin/data.json { default_type application/json; content_by_lua ' local v={} v.date=ngx.now()*1000 -- string.gsub(ngx.localtime()," ",":") v.close=math.random(2,100) ngx.say( json.encode(v)) '; } location = /_admin/data.tsv { default_type application/json; content_by_lua ' ngx.say("date close") ngx.say(string.gsub(ngx.localtime()," ",":") .. " ".. math.random(20,600) ) '; } ## 请求转发处理 location / { set $bk_host ''; # default_type text/html; # 路由计算 access_by_lua_file lua/lib/app_route.lua; proxy_set_header Host $host; proxy_set_header X-Real-IP $remote_addr; proxy_pass http://$bk_host; # 简单统计收集 log_by_lua_file lua/lib/stats.lua; # } #用于调试的例子 location = /haha { default_type application/json; # access_by_lua_file demo/demo.lua; content_by_lua ' ngx.say(ngx.var.host) ngx.say(ngx.time()) ngx.say(ngx.now()) ngx.say( json.encode(router.routingTable) .."<br/>") ngx.say( "<br/>") ngx.say(json.encode(discovery.hosts ) .."<br/>") '; # } #error_page 404 /404.html; # redirect server error pages to the static page /50x.html # error_page 500 502 503 504 /50x.html; location = /50x.html { root html; } # proxy the PHP scripts to Apache listening on 127.0.0.1:80 # #location ~ \.php$ { # proxy_pass http://127.0.0.1; #} # pass the PHP scripts to FastCGI server listening on 127.0.0.1:9000 # #location ~ \.php$ { # root html; # fastcgi_pass 127.0.0.1:9000; # fastcgi_index index.php; # fastcgi_param SCRIPT_FILENAME /scripts$fastcgi_script_name; # include fastcgi_params; #} # deny access to .htaccess files, if Apache's document root # concurs with nginx's one # #location ~ /\.ht { # deny all; #} } # another virtual host using mix of IP-, name-, and port-based configuration # #server { # listen 8000; # listen somename:8080; # server_name somename alias another.alias; # location / { # root html; # index index.html index.htm; # } #} # HTTPS server # #server { # listen 443 ssl; # server_name localhost; # ssl_certificate cert.pem; # ssl_certificate_key cert.key; # ssl_session_cache shared:SSL:1m; # ssl_session_timeout 5m; # ssl_ciphers HIGH:!aNULL:!MD5; # ssl_prefer_server_ciphers on; # location / { # root html; # index index.html index.htm; # } #}}
例子Eureka 服务
如果没有Eureka环境,也可以编译安装本例子中的EurekaDemo服务
运行测试
启动所有的demo服务:discovery,api,zuul;
启动nginx;
作者:铁汤
链接:https://www.jianshu.com/p/80646d27856b
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