Relevant telegraf.conf

[[inputs.http]]
  urls = [
        "https://netscaler/nitro/v1/stat/lbvserver"
        ]
  method = "GET"

  cookie_auth_url = "https://netscaler/nitro/v1/config/login"
  cookie_auth_method = "POST"
  cookie_auth_headers = { Content-Type = "application/json"}
  cookie_auth_body = '{"login":{"username": "username", "password":"password"}}'
  ## cookie_auth_renewal not set or set to "0" will auth once and never renew the cookie
  cookie_auth_renewal = "1h"
  data_format = "json_v2"

  insecure_skip_verify = true

Logs from Telegraf

E! [telegraf] Error running agent: could not initialize input inputs.http: cookie auth renewal received status code: 400 (Bad Request)

System info

Telegraf 1.22.4 (also tried 1.24.0~e945364b), Redhat 8.6

Docker

No response

Steps to reproduce

1. Configure HTTP plugin as shown in example
2. Configure Citrix ADC with basic credentials
3. Start Telegraf
4. Telegraf stops with error

Expected behavior

I expect Telegraf HTTP plugin will connect to Citrix ADC and initiate the session, so I can draw stats using API calls

Moreover Telegraf stops on that error code 400, which in my humble opinion may be a bad design choice since it may crash otherwise a perfectly fine running Telegraf instance. Telegraf should just ignore the error and maybe retry later instead of stopping entirely. Imagine a situation where we have 1 HTTP endpoint and 99 SNMP devices. When we poll a device with HTTP plugin and it replies with non-200 code (because of some internal error), then whole Telegraf instance crashes and stops gathering statistics for those 99 perfectly working devices.

Actual behavior

E! [telegraf] Error running agent: could not initialize input inputs.http: cookie auth renewal received status code: 400 (Bad Request)

Additional info

When I use curl then it all works:

Establishing new session
curl -ik https://netscaler/nitro/v1/config/login -X POST -H 'Content-Type: application/json' -d '{ "login" :{"username": "username", "password": "password"}}'
HTTP/1.1 201 Created
Date: Fri, 08 Jul 2022 06:56:16 GMT
Server: Apache
X-Frame-Options: SAMEORIGIN
Set-Cookie: SESSID=deleted; expires=Thu, 01-Jan-1970 00:00:01 GMT; Max-Age=0; path=/
Expires: Thu, 19 Nov 1981 08:52:00 GMT
Cache-Control: no-store, no-cache, must-revalidate, post-check=0, pre-check=0
Pragma: no-cache
Set-Cookie: sessionid=%23%23465611085B10AEECBC084499AA564FABA40BACAE435A343F2E40A96A12191918377A434FE2959F11C56076F0E08DDA840EFF0A9968DA9BAA0CA70555A6D168D5155CEBBAB02F9101FBED406B01164D0E617790FE785EF572F90C11FBDFE84FA7437466B824ECA2BC9652FB39FFCAF3DEF23B3AD421A53C32A8D52F75B874; path=/nitro/v1
Feature-Policy: camera 'none'; microphone 'none'; geolocation 'none'
Referrer-Policy: no-referrer
X-XSS-Protection: 1; mode=block
X-Content-Type-Options: nosniff
Content-Length: 328
Content-Type: application/json; charset=utf-8

{ "errorcode": 0, "message": "Done", "severity": "NONE", "sessionid": "##465611085B10AEECBC084499AA564FABA40BACAE435A343F2E40A96A12191918377A434FE2959F11C56076F0E08DDA840EFF0A9968DA9BAA0CA70555A6D168D5155CEBBAB02F9101FBED406B01164D0E617790FE785EF572F90C11FBDFE84FA7437466B824ECA2BC9652FB39FFCAF3DEF23B3AD421A53C32A8D52F75B874" }

Getting example statistics
curl -ik https://netscaler/nitro/v1/stat/lbvserver -H 'Content-Type: application/json' --cookie "sessionid=%23%23465611085B10AEECBC084499AA564FABA40BACAE435A343F2E40A96A12191918377A434FE2959F11C56076F0E08DDA840EFF0A9968DA9BAA0CA70555A6D168D5155CEBBAB02F9101FBED406B01164D0E617790FE785EF572F90C11FBDFE84FA7437466B824ECA2BC9652FB39FFCAF3DEF23B3AD421A53C32A8D52F75B874; path=/nitro/v1"
HTTP/1.1 200 OK
Date: Fri, 08 Jul 2022 06:57:05 GMT
Server: Apache
X-Frame-Options: SAMEORIGIN
Expires: Thu, 19 Nov 1981 08:52:00 GMT
Cache-Control: no-store, no-cache, must-revalidate, post-check=0, pre-check=0
Pragma: no-cache
Vary: Accept-Encoding
Feature-Policy: camera 'none'; microphone 'none'; geolocation 'none'
Referrer-Policy: no-referrer
X-XSS-Protection: 1; mode=block
X-Content-Type-Options: nosniff
Content-Length: 1640
Content-Type: application/json; charset=utf-8

{ "errorcode": 0, "message": "Done", "severity": "NONE", "lbvserver": [ { "name": "lb-test-ssl", "avgcltttlb": "0", "cltresponsetimeapdex": 1.000000, "vsvrsurgecount": "0", "establishedconn": "0", "inactsvcs": "0", "vslbhealth": "0", "primaryipaddress": "169.254.1.1", "primaryport": 443, "type": "SSL", "state": "DOWN", "actsvcs": "0", "cpuusagepm": "0", "tothits": "0", "hitsrate": 0, "totalrequests": "0", "requestsrate": 0, "totalresponses": "0", "responsesrate": 0, "totalrequestbytes": "0", "requestbytesrate": 0, "totalresponsebytes": "0", "responsebytesrate": 0, "totalh2requests": "0", "h2requestsrate": 0, "totalh2responses": "0", "h2responsesrate": 0, "totalpktsrecvd": "0", "pktsrecvdrate": 0, "totalpktssent": "0", "pktssentrate": 0, "curclntconnections": "0", "cursrvrconnections": "0", "curpersistencesessions": "0", "curbackuppersistencesessions": "0", "surgecount": "0", "svcsurgecount": "0", "sothreshold": "0", "totspillovers": "0", "labelledconn": "0", "pushlabel": "0", "deferredreq": "0", "deferredreqrate": 0, "invalidrequestresponse": "0", "invalidrequestresponsedropped": "0", "totvserverdownbackuphits": "0", "curmptcpsessions": "0", "cursubflowconn": "0", "totalconnreassemblyqueue75": "0", "totalconnreassemblyqueueflush": "0", "totalsvrbusyerr": "0", "svrbusyerrrate": 0, "reqretrycount": "0", "reqretrycountexceeded": "0", "httpmaxhdrszpkts": "0", "httpmaxhdrfldlenpkts": "0", "tcpmaxooopkts": "0", "totcltttlbtransactions": "0", "cltttlbtransactionsrate": 0, "toleratingttlbtransactions": "0", "toleratingttlbtransactionsrate": 0, "frustratingttlbtransactions": "0", "frustratingttlbtransactionsrate": 0 } ] }

At first I thought that maybe Telegraf just won't accept code 201 as per #11134
so I tested new build #11472
but it still fails