MON-76: Filter tags option

cloud/azure/redis/inputs.tf

@@ -9,28 +9,40 @@ variable "environment" {
 
 # Global DataDog
 variable "message" {
+  description = "Message sent when a Redis monitor is triggered"
 }
 
 variable "delay" {
+  description = "Delay in seconds for the metric evaluation"
   default = 600
 }
 
+variable "use_filter_tags" {
+  description = "Filter the data with service tags if true"
+  default     = "true"
+}
+
 # Azure Redis specific
 variable "evictedkeys_limit_threshold_warning" {
   default = 0
 }
+
 variable "evictedkeys_limit_threshold_critical" {
   default = 100
 }
+
 variable "percent_processor_time_threshold_critical" {
   default = 80
 }
+
 variable "percent_processor_time_threshold_warning" {
   default = 60
 }
+
 variable "server_load_rate_threshold_critical" {
   default = 90
 }
+
 variable "server_load_rate_threshold_warning" {
   default = 70
 }

cloud/azure/redis/monitors-azure-redis.tf

@@ -1,8 +1,16 @@
+data "template_file" "filter" {
+  template = "$${filter}"
+
+  vars {
+    filter = "${var.use_filter_tags == "true" ? format("dd_monitoring:enabled,dd_azure_eventhub:enabled,env:%s", var.environment) : "*"}"
+  }
+}
+
 resource "datadog_monitor" "status" {
   name    = "[${var.environment}] Redis {{name}} is down"
   message = "${var.message}"
 
-  query = "avg(last_5m):avg:azure.cache_redis.status{*} by {name,resource_group} != 1"
+  query = "avg(last_5m):avg:azure.cache_redis.status{${data.template_file.filter.rendered}} by {name,resource_group} != 1"
   type  = "query alert"
 
   notify_no_data      = false
@@ -21,7 +29,7 @@ resource "datadog_monitor" "evictedkeys" {
   name    = "[${var.environment}] Redis {{value}} evictedkeys on {{name}}"
   message = "${var.message}"
 
-  query = "avg(last_5m):avg:azure.cache_redis.evictedkeys{*} by {name,resource_group} > ${var.evictedkeys_limit_threshold_critical}"
+  query = "avg(last_5m):avg:azure.cache_redis.evictedkeys{${data.template_file.filter.rendered}} by {name,resource_group} > ${var.evictedkeys_limit_threshold_critical}"
   type  = "query alert"
 
   thresholds {
@@ -45,7 +53,7 @@ resource "datadog_monitor" "percent_processor_time" {
   name    = "[${var.environment}] Redis processor time {{value}}% on {{name}}"
   message = "${var.message}"
 
-  query = "avg(last_5m):avg:azure.cache_redis.percent_processor_time{*} by {name,resource_group} > ${var.percent_processor_time_threshold_critical}"
+  query = "avg(last_5m):avg:azure.cache_redis.percent_processor_time{${data.template_file.filter.rendered}} by {name,resource_group} > ${var.percent_processor_time_threshold_critical}"
   type  = "query alert"
 
   thresholds {
@@ -69,7 +77,7 @@ resource "datadog_monitor" "server_load" {
   name    = "[${var.environment}] Redis processor server load {{value}}% on {{name}}"
   message = "${var.message}"
 
-  query = "avg(last_5m):avg:azure.cache_redis.server_load{*} by {name,resource_group} > ${var.server_load_rate_threshold_critical}"
+  query = "avg(last_5m):avg:azure.cache_redis.server_load{${data.template_file.filter.rendered}} by {name,resource_group} > ${var.server_load_rate_threshold_critical}"
   type  = "query alert"
 
   thresholds {