lua列出所有upsteam

nginx

字数统计: 377阅读时长: 2 min

 2017/06/26 

需要在http的路由上暴露出所有的upsteam配置段

upstream names{
    server 127.0.0.1:8050 ;
    server 127.0.0.1:8060 ;
}

upstream tuling {
    server 127.0.0.1:8051       weight=5;
    server 127.0.0.1:8062       weight=1;
}

server {
    listen       80;
    server_name  localhost;

    #charset koi8-r;
    #access_log  /var/log/nginx/host.access.log  main;

    location / {
        root   /usr/local/openresty/nginx/html;
        index  index.html index.htm;
    }

    #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   /usr/local/openresty/nginx/html;
    }

    location /clusterinfo {
        content_by_lua '
            local cjson = require "cjson"

            local upstream = require "ngx.upstream"
            local get_servers = upstream.get_servers
            local get_upstreams = upstream.get_upstreams

            -- get all upstream config block 
            local function get_all_upstream()
                local us = get_upstreams()
                local upstreams = {}
                
                for _, u in ipairs(us) do
                    local srvs = get_servers(u)
                    upstreams[u] = srvs
                end		
                
                return upstreams	
            end

            ngx.say(cjson.encode(get_all_upstream()))

        
        ';
    }
}

限制下只让内网ip访问

...
    location /clusterinfo {
        allow 100.64.0.0/24;
        allow 10.0.0.0/8;
        deny all; 
        content_by_lua '
            local cjson = require "cjson"

            local upstream = require "ngx.upstream"
            local get_servers = upstream.get_servers
            local get_upstreams = upstream.get_upstreams

            -- get all upstream config block 
            local function get_all_upstream()
                local us = get_upstreams()
                local upstreams = {}
                
                for _, u in ipairs(us) do
                    local srvs = get_servers(u)
                    upstreams[u] = srvs
                end  
                
                return upstreams 
            end

            ngx.say(cjson.encode(get_all_upstream()))

        
        ';
    }
...

单独要地址的话

...
    location /clusterinfo {
        content_by_lua '
            local cjson = require "cjson"

            local upstream = require "ngx.upstream"
            local get_servers = upstream.get_servers
            local get_upstreams = upstream.get_upstreams

            -- get all upstream config block 
            local function get_all_upstream()
                local us = get_upstreams()
                local upstreams = {}
                
                for _, u in ipairs(us) do
                    local srvs = get_servers(u)
                    local servers = {}
                    for i,s in ipairs(srvs) do
                        servers[i]=s["addr"]
                    end
                    upstreams[u] = servers
                end		
                
                return upstreams	
            end

            ngx.say(cjson.encode(get_all_upstream()))

        
        ';
    }

参考

https://github.com/openresty/lua-upstream-nginx-module#get_upstreams

原文作者：Zhangguanzhang

原文链接：http://zhangguanzhang.github.io/2017/06/26/lua-list-all-upsteam/

发表日期：June 26th 2017, 7:10:10 pm

更新日期：June 26th 2017, 7:10:10 pm

Next Post

centos7 的一些常见软件的安装 mirror
Previous Post

bash自定义补全

CATALOG