feat: enable optionally disabling the eks/rds alerts

Author: georgepstaylor

eventbridge.tf

@@ -1,45 +1,47 @@
 # EventBridge Rule (RDS Extended Support Billing)
 resource "aws_cloudwatch_event_rule" "rds_extended_support_billing" {
+  count       = var.enable_aws_extended_support_alerts ? 1 : 0
   name        = "rds-extended-support-billing-notification"
   description = "Captures AWS Billing notifications for RDS Extended Support"
 
   event_pattern = jsonencode({
     "source" : ["aws.health"],
+    "detail-type" : ["AWS Health Event"],
     "detail" : {
       "eventTypeCode" : ["AWS_BILLING_NOTIFICATION"],
       "eventDescription" : [{
-        "latestDescription" : [{
-          "wildcard" : ["*RDS Extended Support*"]
-        }]
+        "wildcard" : "*RDS Extended Support*"
       }]
     }
   })
 }
 
 resource "aws_cloudwatch_event_target" "rds_extended_support_billing" {
-  rule = aws_cloudwatch_event_rule.rds_extended_support_billing.name
-  arn  = local.sns_topic_arn
+  count = var.enable_aws_extended_support_alerts ? 1 : 0
+  rule  = aws_cloudwatch_event_rule.rds_extended_support_billing[0].name
+  arn   = local.sns_topic_arn
 }
 
 # EventBridge Rule (EKS Extended Support Billing)
 resource "aws_cloudwatch_event_rule" "eks_extended_support_billing" {
-  name        = "rds-extended-support-billing-notification"
+  count       = var.enable_aws_extended_support_alerts ? 1 : 0
+  name        = "eks-extended-support-billing-notification"
   description = "Captures AWS Billing notifications for EKS Extended Support"
 
   event_pattern = jsonencode({
     "source" : ["aws.health"],
+    "detail-type" : ["AWS Health Event"],
     "detail" : {
       "eventTypeCode" : ["AWS_BILLING_NOTIFICATION"],
       "eventDescription" : [{
-        "latestDescription" : [{
-          "wildcard" : ["*EKS Extended Support*"]
-        }]
+        "wildcard" : "*EKS Extended Support*"
       }]
     }
   })
 }
 
 resource "aws_cloudwatch_event_target" "eks_extended_support_billing" {
-  rule = aws_cloudwatch_event_rule.rds_extended_support_billing.name
-  arn  = local.sns_topic_arn
+  count = var.enable_aws_extended_support_alerts ? 1 : 0
+  rule  = aws_cloudwatch_event_rule.rds_extended_support_billing[0].name
+  arn   = local.sns_topic_arn
 }

variables.tf

@@ -86,6 +86,12 @@ variable "enable_aws_config_changes" {
   default     = true
 }
 
+variable "enable_aws_extended_support_alerts" {
+  description = "The boolean flag whether the eventbridge rules for extended support (EKS/RDS) billing alerts are enabled or not."
+  type        = bool
+  default     = true
+}
+
 variable "enable_security_group_changes" {
   description = "The boolean flag whether the security_group_changes alarm is enabled or not."
   type        = bool