try ratelimit

core/ingress.tf

@@ -72,3 +72,19 @@ resource "kubernetes_manifest" "letsencrypt_prod" {
     }
   }
 }
+resource "kubernetes_manifest" "traefik_Middleware_ratelimit" {
+  manifest = {
+    "apiVersion" = "traefik.containo.us/v1alpha1"
+    "kind"       = "Middleware"
+    "metadata" = {
+      "name" = "ratelimit"
+    }
+    "spec" = {
+      "rateLimit" = {
+        "average" = "100"
+        "burst"   = 50
+
+      }
+    }
+  }
+}

modules/ingress/ingress.tf

@@ -65,6 +65,9 @@ resource "kubernetes_ingress_v1" "automatic_ingress" {
                   number = each.value.service_port[0]
                 }
               }
+              middlewares {
+                name = "ratelimit"
+              }
             }
           }
         }