try to upload a manifest but I have an error

module.tf

@@ -42,7 +42,7 @@ variable "kubernetes" {
     redis                  = optional(map(string))
     enabled                = optional(bool, true)
     secret_ref             = optional(list(string))
-    config_map_ref          = optional(list(string))
+    config_map_ref         = optional(list(string))
     requirements = optional(map(string), {
       limits-cpu      = "800m"
       limits-memory   = "500Mi"
@@ -129,6 +129,15 @@ resource "kubernetes_namespace" "automatic" {
 
 #}
 
+
+resource "kubernetes_manifest" "service" {
+  provider = kubernetes-alpha
+
+  manifest = yamldecode(file("/opt/kubernetes/Terraform_kube/onitama_secret2.yaml"))
+  #  manifest = yamldecode(interpolate(file("/opt/kubernetes/Terraform_kube/onitama_secret.yaml")))
+}
+
+
 resource "kubernetes_persistent_volume_claim" "automatic-pvc" {
   for_each = { for key, value in local.pvc_details : "${value.index}" => merge(value, { mew_key = value.index }) if value.pvc }
   metadata {