After installation of Terraform you can practice with simple variable test.
1.As a first step you have to create main.tf file
#vi main.tf
variable “myvar” {
type = string
default = “hello terraform”
}
variable “mymap” {
type = map(string)
default = {
mykey = “myvalue”
}
}
variable “mylist” {
type = list
default = [1,2,3]
}
2.Testing variables
#terraform console
>var.myvar
“hello terraform”
> “${var.myvar}”
“hello terraform”
> var.mymap
tomap({
“mykey” = “myvalue”
})
>var.mymap[“mykey”]
“myvalue”
> “${var.mymap[“mykey”]}”
“myvalue”
>var.mylist
tolist([
1,
2,
3,
])
>var.mylist[0]
1
> element(var.mylist, 1)
2
>element(var.mylist, 0)
1
>slice(var.mylist, 0, 2)
tolist([
1,
2,
])
>exit
3. Testing with AWS variables
As part of next exercise create below files with content.
#cat sesource.tf
#cat terraform.tfvars
Now type “terraform console” , you will encounter with below error
You have to install provider plugin , here its aws . Use
#terraform init
4.Now test with variables
