UPD: added read write latency checks for RDS

modules/ManagementGovernance/Monitoring.RDS/main.tf

@@ -88,4 +88,50 @@ resource aws_cloudwatch_metric_alarm rds-DiskQueueDepth {
   lifecycle {
     ignore_changes = [tags]
   }
+}
+
+resource aws_cloudwatch_metric_alarm rds-ReadLetency {
+  alarm_name = "RDS:ReadLetency:${var.rds-instance-name}"
+  comparison_operator = "GreaterThanThreshold"
+  evaluation_periods = "2"
+  metric_name = "ReadLetency"
+  period = "600"
+  statistic = "Average"
+  threshold = var.threshold-ReadLetency
+  alarm_description = "RDS:ReadLetency"
+  namespace = "AWS/RDS"
+  insufficient_data_actions = []
+  actions_enabled = "true"
+  alarm_actions = [var.alarm-actions-urgent]
+  ok_actions = [var.alarm-actions-urgent]
+  dimensions = {
+    DBInstanceIdentifier = var.rds-instance-name
+  }
+  tags = var.default-tags
+  lifecycle {
+    ignore_changes = [tags]
+  }
+}
+
+resource aws_cloudwatch_metric_alarm rds-WriteLetency {
+  alarm_name = "RDS:WriteLetency:${var.rds-instance-name}"
+  comparison_operator = "GreaterThanThreshold"
+  evaluation_periods = "2"
+  metric_name = "WriteLetency"
+  period = "600"
+  statistic = "Average"
+  threshold = var.threshold-WriteLetency
+  alarm_description = "RDS:WriteLetency"
+  namespace = "AWS/RDS"
+  insufficient_data_actions = []
+  actions_enabled = "true"
+  alarm_actions = [var.alarm-actions-urgent]
+  ok_actions = [var.alarm-actions-urgent]
+  dimensions = {
+    DBInstanceIdentifier = var.rds-instance-name
+  }
+  tags = var.default-tags
+  lifecycle {
+    ignore_changes = [tags]
+  }
 }

modules/ManagementGovernance/Monitoring.RDS/variables.tf

@@ -20,4 +20,6 @@ variable default-tags {}
 variable threshold-FreeableMemory {}
 variable threshold-CpuUtilization {}
 variable threshold-FreeStorageSpace {}
-variable threshold-DiskQueueDepth {}
+variable threshold-DiskQueueDepth {}
+variable threshold-ReadLetency {}
+variable threshold-WriteLetency {}