refs platform/board#4082: remove module dependencies

Author: FabrizioCafolla

cert_manager.tf

@@ -9,7 +9,7 @@ locals {
   )
   cert_manager_notification_channels = var.cert_manager.notification_enabled ? (length(var.cert_manager.notification_channels) > 0 ? var.cert_manager.notification_channels : var.notification_channels) : []
 
-  cert_manager_log_filter = <<-EOT
+  cert_manager_log_filter = var.cert_manager.cluster_name != null ? (<<-EOT
     (
       (
         resource.type="k8s_container"
@@ -34,6 +34,7 @@ locals {
     )
     ${trimspace(var.cert_manager.filter_extra)}
   EOT
+  ) : ""
 }
 
 resource "google_monitoring_alert_policy" "cert_manager_logmatch_alert" {

kyverno.tf

@@ -3,7 +3,7 @@ locals {
   alert_documentation           = var.kyverno.alert_documentation != null ? var.kyverno.alert_documentation : "Kyverno controllers produced ERROR logs in namespace ${var.kyverno.namespace}."
   kyverno_notification_channels = var.kyverno.notification_enabled ? (length(var.kyverno.notification_channels) > 0 ? var.kyverno.notification_channels : var.notification_channels) : []
 
-  kyverno_log_filter = <<-EOT
+  kyverno_log_filter = var.kyverno.cluster_name != null ? (<<-EOT
     resource.type="k8s_container"
     AND resource.labels.project_id="${local.kyverno_project_id}"
     AND resource.labels.cluster_name="${var.kyverno.cluster_name}"
@@ -48,6 +48,7 @@ locals {
     )
     ${trimspace(var.kyverno.filter_extra)}
   EOT
+  ) : ""
 }
 
 resource "google_monitoring_alert_policy" "kyverno_logmatch_alert" {

variables.tf

@@ -11,7 +11,9 @@ variable "notification_channels" {
 
 variable "cloud_sql" {
   description = "Configuration for Cloud SQL monitoring alerts. Supports customization of project, auto-close timing, notification channels, and per-instance alert thresholds for CPU, memory, and disk utilization."
+  default     = {}
   type = object({
+    enabled               = optional(bool, true)
     project_id            = optional(string, null)
     auto_close            = optional(string, "86400s") # default 24h
     notification_enabled  = optional(bool, true)
@@ -68,9 +70,10 @@ variable "cloud_sql" {
 
 variable "kyverno" {
   description = "Configuration for Kyverno monitoring alerts. Allows customization of cluster name, project, notification channels, alert documentation, metric thresholds, auto-close timing, enablement, extra filters, and namespace."
+  default     = {}
   type = object({
-    enabled               = optional(bool, true)
-    cluster_name          = string
+    enabled               = optional(bool, false)
+    cluster_name          = optional(string, null)
     project_id            = optional(string, null)
     notification_enabled  = optional(bool, true)
     notification_channels = optional(list(string), [])
@@ -85,9 +88,10 @@ variable "kyverno" {
 
 variable "cert_manager" {
   description = "Configuration for cert-manager missing issuer log alert. Allows customization of project, cluster, namespace, notification channels, alert documentation, enablement, extra filters, auto-close timing, and notification rate limiting."
+  default     = {}
   type = object({
-    enabled                          = optional(bool, true)
-    cluster_name                     = string
+    enabled                          = optional(bool, false)
+    cluster_name                     = optional(string, null)
     project_id                       = optional(string, null)
     namespace                        = optional(string, "cert-manager")
     notification_enabled             = optional(bool, true)
@@ -101,8 +105,9 @@ variable "cert_manager" {
 
 variable "konnectivity_agent" {
   description = "Configuration for Konnectivity agent deployment replica alert in GKE. Triggers when there are no available replicas."
+  default     = {}
   type = object({
-    enabled               = optional(bool, true)
+    enabled               = optional(bool, false)
     cluster_name          = optional(string, null)
     project_id            = optional(string, null)
     namespace             = optional(string, "kube-system")