feat(splunk-logger): allow configuring keepalive_timeout (#11611)

Author: shreemaan-abhishek

apisix/plugins/splunk-hec-logging.lua

@@ -51,6 +51,12 @@ local schema = {
                     type = "integer",
                     minimum = 1,
                     default = 10
+                },
+                keepalive_timeout = {
+                    type = "integer",
+                    minimum = 1000,
+                    default = 60000,
+                    description = "keepalive timeout in milliseconds",
                 }
             },
             required = { "uri", "token" }
@@ -142,6 +148,7 @@ local function send_to_splunk(conf, entries)
         method = "POST",
         body = table_concat(t),
         headers = request_headers,
+        keepalive_timeout = conf.endpoint.keepalive_timeout
     })
 
     if not res then

docs/en/latest/plugins/splunk-hec-logging.md

@@ -43,6 +43,7 @@ When the Plugin is enabled, APISIX will serialize the request context informatio
 | endpoint.token   | True     |         | Splunk HEC authentication token.                                                                                                                                                 |
 | endpoint.channel | False    |         | Splunk HEC send data channel identifier. Read more: [About HTTP Event Collector Indexer Acknowledgment](https://docs.splunk.com/Documentation/Splunk/8.2.3/Data/AboutHECIDXAck). |
 | endpoint.timeout | False    | 10      | Splunk HEC send data timeout in seconds.                                                                                                                                         |
+| endpoint.keepalive_timeout | False    | 60000      | Keepalive timeout in milliseconds.                                                                                                                                  |
 | ssl_verify       | False    | true    | When set to `true` enables SSL verification as per [OpenResty docs](https://github.com/openresty/lua-nginx-module#tcpsocksslhandshake).                                          |
 | log_format       | False    |  | Log format declared as key value pairs in JSON format. Values only support strings. [APISIX](../apisix-variable.md) or [Nginx](http://nginx.org/en/docs/varindex.html) variables can be used by prefixing the string with `$`. |
 

t/plugin/splunk-hec-logging.t

@@ -426,3 +426,40 @@ passed
 tail -n 1 ci/pod/vector/splunk.log
 --- response_body eval
 qr/.*test batched data.*/
+
+
+
+=== TEST 13: set route with keepalive_timeout (success write)
+--- config
+    location /t {
+        content_by_lua_block {
+            local t = require("lib.test_admin").test
+            local code, body = t('/apisix/admin/routes/1', ngx.HTTP_PUT, {
+                uri = "/hello",
+                upstream = {
+                    type = "roundrobin",
+                    nodes = {
+                        ["127.0.0.1:1980"] = 1
+                    }
+                },
+                plugins = {
+                    ["splunk-hec-logging"] = {
+                        endpoint = {
+                            uri = "http://127.0.0.1:18088/services/collector",
+                            token = "BD274822-96AA-4DA6-90EC-18940FB2414C",
+                            keepalive_timeout = 5000
+                        },
+                        batch_max_size = 1,
+                        inactive_timeout = 1
+                    }
+                }
+            })
+
+            if code >= 300 then
+                ngx.status = code
+            end
+            ngx.say(body)
+        }
+    }
+--- response_body
+passed