variable "instance_type" {
    description = "Type de machine"
    type        = string
}

variable "zone" {
    description = "zone"
    type        = string
}

variable "frontend_subnet" {
    description = "sous réseau frontend"
    type        = string
}

variable "backend_subnet" {
    description = "sous réseau backend"
    type        = string
}

variable "database_subnet" {
    description = "sous réseau database"
    type        = string
}