Add method to allow retrieval of listener tag during pool configuration

Author: FinnitoProductions

lib/routelib/routelib.lua

@@ -536,7 +536,7 @@ end
 -- routes that have stats should assign stats or global overrides in this conf
 -- stage.
 -- NOTE: we are editing the entries in-place
-local function main_configure_router(set, pools, c_in)
+local function main_configure_router(set, pools, c_in, tag)
     -- create ctx object to hold label + command
     local ctx = {
         label = function(self)
@@ -545,6 +545,9 @@ local function main_configure_router(set, pools, c_in)
         cmd = function(self)
             return self._cmd
         end,
+        listen_tag = function(self)
+            return self._listen_tag
+        end,
         check_child = function(self, child)
             -- ensure this child is a string of a valid pool
             if type(child) ~= "string" then
@@ -610,6 +613,7 @@ local function main_configure_router(set, pools, c_in)
             return id
         end
     }
+    ctx._listen_tag = tag
 
     if set.map then
         -- a prefix map
@@ -679,7 +683,7 @@ local function main_routes_parse(c_in, pools)
             end
         end
 
-        main_configure_router(set, pools, c_in)
+        main_configure_router(set, pools, c_in, tag)
         found = true
     end