I have a custom terraform module which create an AWS EC2 instance, so it's relying on the aws provider. This terraform custom module is used as a base to describes the instance i want to create, but I also need some other information that will be reused later.
For example, i want to define a description to the VM as an input variable, but i don't need to use it at all to create my vm with the aws provider.
I just want this input variable to be sent directly as an output so it can be re-used later once terraform has done its job.
ex What I have as input variable
variable "description" {
type = string
description = "Description of the instance"
}
what I wanna put as output variable
output "description" {
value = module.ec2_instance.description
}
What my main module is doing
module "ec2_instance" {
source = "./modules/aws_ec2"
ami_id = var.ami_id
instance_name = var.hostname
disk_size = var.disk_size
create_disk = var.create_disk
availability_zone = var.availability_zone
disk_type = var.disk_type
// I don't need the description variable for the module to work, and I don't wanna do anything with it here, i need it later as output
}
I feel stupid because i searched the web for an answer and can't find anything to do that. Can you help ?
Thanks
EDIT: Added example of code
CodePudding user response:
If you have an input variable declared like this:
variable "description" {
type = string
}
...then you can return its value as an output value like this, in the same module where you declared it:
output "description" {
value = var.description
}