openrestry 后端服务upstream 健康检查配置

我会带着你远行 2022-01-15 07:19 747阅读 0赞

# openrestry 后端服务upstream 健康检查配置 #

http {
     # 在http模块中增加以下配置
            lua_package_path "/usr/local/openresty/lualib/resty/?.lua;/usr/local/openresty/lualib/resty/upstream/?.lua;;";
            lua_shared_dict healthcheck 1m;
            lua_socket_log_errors off;
            init_worker_by_lua_block {
            local hc = require "resty.upstream.healthcheck"
            local ok, err = hc.spawn_checker{
                shm = "healthcheck",
                upstream = "xx-tomcat",
                type = "http",
                http_req = "GET / HTTP/1.0\r\nHost: xx-tomcat\r\n\r\n",
                interval = 2000,
                timeout = 1000,
                fall = 3,
                rise = 2,
                valid_statuses = {200, 302},
                concurrency = 10,
            }
    
            if not ok then
                ngx.log(ngx.ERR, "failed to spawn health checker: ", err)
                return
            end
            }
     }
    
    # 在server中增加一个location
        location /ngx_stat {
            allow 103.101.204.84;
            deny all;
            access_log off;
            default_type text/plain;
            content_by_lua_block {
                local hc = require "resty.upstream.healthcheck"
                ngx.say("Nginx Worker PID: ", ngx.worker.pid())
                ngx.print(hc.status_page())
            }
        }

配置完成后重新加载配置文件使之生效，浏览器访问http://test.0xsyshell.com/ngx\_stat  
效果如下：

Nginx Worker PID: 18561
    Upstream xx-tomcat
        Primary Peers
            172.31.16.14:8080 up
            172.31.16.15:8080 up
        Backup Peers

转载于:https://blog.51cto.com/darren88/2399795