Update file efs.tf

terraform/efs.tf

@@ -11,7 +11,11 @@ resource "aws_efs_mount_target" "secure-agent-fs-mount" {
   subnet_id      = sort(data.aws_subnets.subnets.ids)[0]
   security_groups = [
   data.aws_security_group.sec-group.id]
+}
+
+resource "aws_efs_backup_policy" "policy" {
+  file_system_id = aws_efs_file_system.secure-agent-fs.id
   backup_policy {
     status = "ENABLED"
   }
-}
+}
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