add more parameters for prom values file

Author: uchinda-sph

locals.tf

@@ -19,7 +19,9 @@ locals {
     prometheus_alertmanager_nodeselector = var.prometheus_alertmanager_nodeselector
     prometheus_nodeselector              = var.prometheus_nodeselector
 
-    prometheus_remote_write = jsonencode(var.prometheus_remote_write)
+    prometheus_remote_write            = jsonencode(var.prometheus_remote_write)
+    prometheus_external_labels         = jsonencode(var.prometheus_external_labels)
+    prometheus_metric_labels_allowlist = var.prometheus_metric_labels_allowlist
   }
 
   grafana_values = {

templates/values.yaml

@@ -1480,6 +1480,7 @@ kubeStateMetrics:
 ## Configuration for kube-state-metrics subchart
 ##
 kube-state-metrics:
+  metricLabelsAllowlist: ${prometheus_metric_labels_allowlist}
   namespaceOverride: ""
   rbac:
     create: true
@@ -2402,7 +2403,7 @@ prometheus:
 
     ## External labels to add to any time series or alerts when communicating with external systems
     ##
-    externalLabels: {}
+    externalLabels: ${prometheus_external_labels}
 
     ## enable --web.enable-remote-write-receiver flag on prometheus-server
     ##

variables.tf

@@ -157,6 +157,18 @@ variable "prometheus_remote_write" {
   default     = []
 }
 
+variable "prometheus_external_labels" {
+  description = "External Labels for Ops Out More Information"
+  type        = map(any)
+  default     = {}
+}
+
+variable "prometheus_metric_labels_allowlist" {
+  description = "Comma-separated list of additional Kubernetes label keys that will be used (Example: '=namespaces=[k8s-label-1,k8s-label-n,...],pods=[app],...)'"
+  type        = string
+  default     = ""
+}
+
 ###########################################
 ######## Grafana Chart Values ########
 ###########################################