Add Prometheus and Alertmanager configurations: implement custom rules, alerting, and Telegram notifications

terraform/modules/utils/prometheus/variables.tf

@@ -11,15 +11,9 @@ variable "retention_time" {
 }
 
 variable "rules" {
-  description = "Prometheus alerting rules"
-  type = list(object({
-    alert       = string
-    expr        = string
-    for         = string
-    labels      = map(string)
-    annotations = map(string)
-  }))
-  default = []
+  description = "Prometheus alerting rules in YAML format"
+  type        = string
+  default     = ""
 }
 
 variable "config" {
@@ -32,3 +26,44 @@ variable "persistent_folder" {
   description = "The path to the persistent folder"
   type        = string
 }
+
+variable "alertmanager_config" {
+  description = "Custom Alertmanager configuration in YAML format"
+  type        = string
+  default     = ""
+}
+
+variable "cluster_name" {
+  description = "The name of the Kubernetes cluster"
+  type        = string
+  default     = "kubernetes"
+}
+
+variable "email_config" {
+  description = "Email configuration for Alertmanager in YAML format"
+  type = object({
+    to            = optional(string, "root@localhost")
+    from          = optional(string, "root@localhost")
+    smarthost     = optional(string, "localhost:25")
+    auth_username = optional(string, "")
+    auth_password = optional(string, "")
+  })
+  default = {
+    to            = "root@localhost"
+    from          = "root@localhost"
+    smarthost     = "localhost:25"
+    auth_username = ""
+    auth_password = ""
+  }
+}
+
+variable "telegram_config" {
+  description = "Telegram configuration for Alertmanager in YAML format"
+  type = object({
+    bot_token  = string
+    chat_id    = string
+    parse_mode = optional(string, "HTML")
+    message    = optional(string, "")
+  })
+  default = null
+}