Make creation of Grafana Data Source and Folder configurable (#145)

* Made the cluster variable visible in dashboards

* Made the repo reusable with multiple EKS clusters

* Relabled the input variable from create_grafana_data_source to create_prometheus_data_source

modules/eks-monitoring/patterns/java/variables.tf

@@ -4,6 +4,12 @@ variable "enable_alerting_rules" {
   default     = true
 }
 
+variable "enable_recording_rules" {
+  description = "Enables or disables Managed Prometheus recording rules"
+  type        = bool
+  default     = true
+}
+
 variable "managed_prometheus_workspace_id" {
   description = "Amazon Managed Prometheus Workspace ID"
   type        = string
@@ -14,3 +20,9 @@ variable "dashboards_folder_id" {
   description = "Grafana folder ID for automatic dashboards"
   type        = string
 }
+
+variable "enable_dashboards" {
+  description = "Enables or disables curated dashboards"
+  type        = bool
+  default     = true
+}