这个软件是 Nginx C 模块用于展示 Lua API 给 ngx_lua for Nginx upstreams 。该模块可以用于生产环境。

Synopsis

http {      upstream foo.com {          server 127.0.0.1 fail_timeout=53 weight=4 max_fails=100;          server agentzh.org:81;      }      upstream bar {          server 127.0.0.2;      }      server {          listen 8080;          # sample output for the following /upstream interface:          # upstream foo.com:          #     addr = 127.0.0.1:80, weight = 4, fail_timeout = 53, max_fails = 100          #     addr = 106.187.41.147:81, weight = 1, fail_timeout = 10, max_fails = 1          # upstream bar:          #     addr = 127.0.0.2:80, weight = 1, fail_timeout = 10, max_fails = 1          location = /upstreams {              default_type text/plain;              content_by_lua '                  local concat = table.concat                  local upstream = require "ngx.upstream"                  local get_servers = upstream.get_servers                  local get_upstreams = upstream.get_upstreams                  local us = get_upstreams()                  for _, u in ipairs(us) do                      ngx.say("upstream ", u, ":")                      local srvs, err = get_servers(u)                      if not srvs then                          ngx.say("failed to get servers in upstream ", u)                      else                          for _, srv in ipairs(srvs) do                              local first = true                              for k, v in pairs(srv) do                                  if first then                                      first = false                                      ngx.print("    ")                                  else                                      ngx.print(", ")                                  end                                  if type(v) == "table" then                                      ngx.print(k, " = {", concat(v, ", "), "}")                                  else                                      ngx.print(k, " = ", v)                                  end                              end                              ngx.print("\\n")                          end                      end                  end              ';          }      }  }

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