[GitHub] [apisix] Raymond0331 commented on issue #7964: help request: no checker for upstreams

[GitBox <gi...@apache.org>]

Raymond0331 commented on issue #7964:
URL: https://github.com/apache/apisix/issues/7964#issuecomment-1254414525

   I've try to reproduce in openresty use  by lua-resty-upstream-healthcheck script it works.
   
   **init_worker_by_lua_block code like the below:** 
   
   ```
   
   init_worker_by_lua_block {
           local hc = require "resty.upstream.healthcheck"
           local ok, err = hc.spawn_checker{
               shm = "myhealthcheck",  -- defined by "lua_shared_dict"
               upstream = "dvsapi", -- defined by "upstream"
               type = "http",
   
               http_req = "GET /dashboard HTTP/1.0\r\nHost: dvsapi\r\n\r\n" , --.. "{\"query\":\"query IntrospectionQuery {\\n      __schema {\\n        subscriptionType { name }\\n      }\\n    }\",\"variables\":{}}" .. "\r\n\r\n",
               interval = 3000,  -- run the check cycle every 3 sec
               timeout = 3000,   -- 3 sec is the timeout for network operations
               fall = 3,  -- # of successive failures before turning a peer down
               rise = 2,  -- # of successive successes before turning a peer up
               valid_statuses = {400},  -- a list valid HTTP status code
               concurrency = 10,  -- concurrency level for test requests
           }
           ngx.log(ngx.ERR, "ok status: ", ok)
           if not ok then
               ngx.log(ngx.ERR, "failed to spawn health checker: ", err)
               return
           end
   }
   ```
   
   **the nginx.conf, like the below:**
   ```
   upstream dvsapi {
       server prod-xxx-xxx-ip1.xxxxxx.com:443;
       server prod-xxx-xxx-ip2.xxxxxx.com:443;
       keepalive 1024;
   }
   
   
   
   server {
       listen       90;
       server_name  localhost;
   
       location / {
   	proxy_set_header HOST $host;
   	proxy_set_header X-Forwarded-Proto $scheme;
      	proxy_set_header X-Real-IP $remote_addr;
      	proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
           proxy_pass          https://dvsapi;
        }
   
       location /server/status {
           access_log off;
           allow 127.0.0.1;
   
           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())
           }
       }
   }
   ```
   
   check the server status:
   `curl localhost:90/server/status`, the results: 
   
   Nginx Worker PID: 16103
   Upstream dvsapi
       Primary Peers
           xx.xx.xxx.95:443 up
           xx.xx.xxx.20:443 up
       Backup Peers
   
   
   Am i do something wrong in APISIX?


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