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https://github.com/ghndrx/terraform-foundation.git
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cae319ee59
ML-powered anomaly detection using AWS Cost Explorer: - Flexible monitoring (service-level, account-level, or Cost Category) - Dual thresholds (percentage OR absolute impact) - Service-specific monitors with custom thresholds - SNS + direct email alerting - KMS encryption support Complements budget-alerts by catching spending anomalies that don't breach budget thresholds but deviate from patterns.
115 lines
3.0 KiB
HCL
115 lines
3.0 KiB
HCL
################################################################################
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# Variables
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################################################################################
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variable "name_prefix" {
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type = string
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description = "Prefix for resource names (e.g., 'prod', 'dev', 'finops')"
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}
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variable "alert_emails" {
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type = list(string)
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description = "Email addresses for SNS notifications"
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default = []
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}
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variable "direct_email_subscribers" {
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type = list(string)
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description = "Email addresses for direct Cost Explorer alerts (bypasses SNS)"
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default = []
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}
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variable "monitor_type" {
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type = string
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description = "Type of anomaly monitor: DIMENSIONAL or CUSTOM"
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default = "DIMENSIONAL"
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validation {
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condition = contains(["DIMENSIONAL", "CUSTOM"], var.monitor_type)
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error_message = "monitor_type must be DIMENSIONAL or CUSTOM."
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}
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}
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variable "monitor_dimension" {
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type = string
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description = "Dimension for DIMENSIONAL monitors: SERVICE or LINKED_ACCOUNT"
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default = "SERVICE"
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validation {
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condition = contains(["SERVICE", "LINKED_ACCOUNT"], var.monitor_dimension)
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error_message = "monitor_dimension must be SERVICE or LINKED_ACCOUNT."
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}
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}
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variable "cost_category_name" {
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type = string
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description = "Cost Category name for CUSTOM monitors"
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default = null
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}
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variable "cost_category_values" {
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type = list(string)
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description = "Cost Category values to filter for CUSTOM monitors"
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default = []
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}
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variable "alert_frequency" {
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type = string
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description = "Frequency of anomaly alerts: DAILY or IMMEDIATE"
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default = "DAILY"
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validation {
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condition = contains(["DAILY", "IMMEDIATE", "WEEKLY"], var.alert_frequency)
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error_message = "alert_frequency must be DAILY, IMMEDIATE, or WEEKLY."
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}
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}
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variable "threshold_percentage" {
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type = number
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description = "Anomaly impact percentage threshold (e.g., 10 = 10%)"
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default = 10
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validation {
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condition = var.threshold_percentage > 0 && var.threshold_percentage <= 100
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error_message = "threshold_percentage must be between 1 and 100."
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}
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}
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variable "threshold_absolute" {
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type = number
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description = "Anomaly impact absolute threshold in USD"
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default = 100
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validation {
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condition = var.threshold_absolute > 0
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error_message = "threshold_absolute must be greater than 0."
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}
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}
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variable "service_monitors" {
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type = map(object({
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threshold_percentage = number
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threshold_absolute = number
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}))
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description = "Optional service-specific monitors with custom thresholds"
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default = {}
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# Example:
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# service_monitors = {
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# ec2 = { threshold_percentage = 15, threshold_absolute = 200 }
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# rds = { threshold_percentage = 20, threshold_absolute = 100 }
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# }
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}
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variable "kms_key_id" {
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type = string
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description = "KMS key ID/ARN for SNS topic encryption (optional)"
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default = null
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}
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variable "tags" {
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type = map(string)
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description = "Tags to apply to all resources"
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default = {}
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}
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