use a list for CW configuration in prometheus

Author: minaslater

aws/telemetry/main.tf

@@ -23,7 +23,7 @@ module "prometheus_workspace" {
   alert_resolve_timeout       = var.alert_resolve_timeout
   alert_subject_template      = var.alert_subject_template
   alertmanager_config_enabled = var.alertmanager_config_enabled
-  logging_group_name          = var.logging_group_name
+  logging_configuration       = var.logging_configuration
   name                        = var.prometheus_workspace_name
   tags                        = var.tags
 

aws/telemetry/modules/prometheus-workspace/main.tf

@@ -3,16 +3,16 @@ resource "aws_prometheus_workspace" "this" {
   tags  = var.tags
 
   dynamic logging_configuration {
-    for_each = var.logging_group_name
+    for_each = var.logging_configuration
     content {
-    log_group_arn = data.aws_cloudwatch_log_group.this.arn
+      log_group_arn = data.aws_cloudwatch_log_group.this.arn
     }
   }
 }
 
 data "aws_cloudwatch_log_group" "this" {
-  count = var.logging_group_name ? 1 : 0
-  name = var.logging_group_name
+  for_each = var.logging_configuration
+  name = each.value.name
 }
 
 resource "aws_iam_role" "ingestion" {

aws/telemetry/modules/prometheus-workspace/variables.tf

@@ -28,9 +28,9 @@ variable "alertmanager_config_enabled" {
   default     = true
 }
 
-variable "logging_group_name" {
-  description = "Name of Cloudwatch logging group for Prometheus workspace"
-  type        = string
+variable "logging_configuration" {
+  description = "Cloudwatch logging configuration for Prometheus workspace"
+  type        = map(string)
   default     = null
 }
 

aws/telemetry/variables.tf

@@ -46,9 +46,9 @@ variable "alertmanager_config_enabled" {
   default     = true
 }
 
-variable "logging_group_name" {
-  description = "Name of Cloudwatch logging group for Prometheus workspace"
-  type        = string
+variable "logging_configuration" {
+  description = "Cloudwatch logging configuration for Prometheus workspace"
+  type        = map(string)
   default     = null
 }