Check a number variable in Terraform to be a positive integer

check_pos_int_number.tf

# Check whether an input variable is a positive integer in Terraform
# Tested with version 0.13
variable "release" {
	type = number
	description = "Release number"
	default = 0
	validation {
		condition = tonumber(var.release) == floor(var.release)
		error_message = "Release should be an integer!"
	}
  validation {
		condition = var.release >= 0
		error_message = "Release should be a positive integer!"
	}
}