variable "region" {
  type    = string
  default = "us-east-1"
}

variable "vpc_cidr" {
  description = "Staging VPC CIDR (single AZ)"
  type        = string
  default     = "10.3.0.0/16"
}

variable "image_tag" {
  description = "Container image tag to deploy"
  type        = string
  default     = "latest"
}

variable "alb_certificate_arn" {
  description = "ACM certificate ARN for the ALB (HTTPS). Empty for HTTP-only."
  type        = string
  default     = ""
}

variable "desired_count" {
  description = "Fixed task count (staging does not autoscale)"
  type        = number
  default     = 2
}

variable "public_domain" {
  description = "Custom domain fronting the ALB (added to ALLOWED_HOSTS alongside *.elb.amazonaws.com); empty until Route53 is wired"
  type        = string
  default     = ""
}

variable "alert_emails" {
  description = "Email addresses that receive CloudWatch alarm notifications via SNS (each must confirm the subscription once)"
  type        = list(string)
  default     = []
}