network_services: add forwardAttributes field for service extensions (#18003) (#1354)

[upstream:c93959c4a87dc5478dbe0fc7c72b330e5322e5cc]

Signed-off-by: Modular Magician <magic-modules@google.com>

Author: modular-magician

network_services_lb_route_extension_basic/main.tf

@@ -210,6 +210,7 @@ resource "google_network_services_lb_route_extension" "default" {
         fail_open = false
 
         forward_headers  = ["custom-header"]
+        forward_attributes = ["request.host", "request.path"]
 
         supported_events = ["REQUEST_HEADERS", "REQUEST_BODY", "REQUEST_TRAILERS"]
         request_body_send_mode = "BODY_SEND_MODE_FULL_DUPLEX_STREAMED"

network_services_lb_traffic_extension_basic/main.tf

@@ -202,6 +202,7 @@ resource "google_network_services_lb_traffic_extension" "default" {
 
           supported_events = ["REQUEST_HEADERS"]
           forward_headers = ["custom-header"]
+          forward_attributes = ["request.host", "request.path"]
           metadata = {
             "key1" = "value1"
             "key2" = "value2"