Using Variables

[Soolaa]

Hi.
I am using variables in the variable.tf file and trying to read the data of it. But even if I leave the variable without a default value, when "terraform plan" command is running, It has a value and seems not using of variables.tf file. what is the problem? I will appreciate.
variables.tf file:
variable "ami_id" {}
variable "instance_type" {}

main.tf file:
resource "aws_instance" "Sahar" {
ami = var.ami_id
instance_type = var.instance_type

terraform apply result:

aws_instance.Sahar will be created

• resource "aws_instance" "Sahar" {
  • ami = "ami-0557a15b87f6559cf"

[moohebat]

Hi. I am using variables in the variable.tf file and trying to read the data of it. But even if I leave the variable without a default value, when "terraform plan" command is running, It has a value and seems not using of variables.tf file. what is the problem? I will appreciate. variables.tf file: variable "ami_id" {} variable "instance_type" {}

main.tf file: resource "aws_instance" "Sahar" { ami = var.ami_id instance_type = var.instance_type

terraform apply result:

aws_instance.Sahar will be created

• resource "aws_instance" "Sahar" {

  • ami = "ami-0557a15b87f6559cf"

are you sure you have not set the variables in terraform.vartf file?

[Mina-Farajian]

you shouldn't hardcode value amount in variables.tf . you leave value empty there
then set value in terraform.tfvars
variables.tf file:
variable "ami_id" {}
variable "instance_type" {}

terraform.tfvars
ami_id = "ami-08cd358d745620807"
instance_type = "t2.micro"

main.tf file :
resource "aws_instance" "test" {
ami = var.ami_id
instance_type = var.instance_type
}