add apitally to uk-national production (#943)

Author: peterdudfield

terraform/nowcasting/production/main.tf

@@ -95,6 +95,7 @@ module "api" {
     { "name" : "ADJUST_MW_LIMIT", "value" : "1000" },
     { "name" : "N_HISTORY_DAYS", "value" : "2" },
     { "name" : "ENVIRONMENT", "value" : local.environment },
+    { "name" : "APITALLY_CLIENT_ID", "value" : var.apitally_client_id},
   ]
   container-name = "nowcasting_api"
   container-tag  = var.api_version

terraform/nowcasting/production/variables.tf

@@ -70,3 +70,9 @@ variable "airflow_url" {
     description = "The URL for the Airflow instance"
     default     = "not-set"
 }
+
+
+variable "apitally_client_id" {
+  description = "The client id for APItally"
+  default = ""
+}