CODEWITHSUNDEEP
terraform
user1198049
user1198049

Reputation: 501

Terraform: Providing list input values from command line?

Is there a way to provide list values from the command line? There is variable merging for maps, but it doesn't seem to be working for lists. I was hoping for something like, but no luck... Thanks

terraform apply -var "listvar=abc1" -var "listvar=abc2"

or possibly

terraform apply -var "listvar=[abc1, abc2]"

Upvotes: 8

Views: 7710

Answers (3)

Romojo
Romojo

Reputation: 91

I've had the same problem: the only way I could get it to work was using the 'tfvars' file (as per the answer above) - but I found that syntax didn't work for me.

main.tf ...

variable people {
  type = list
  description = "List of names"
  default = ["Blank1","Blank2","Blank3"]
}


output chosenname {
  value = "The second element is ${(var.people[1])}"
}

and tfvars of ...

people=["Brown","Smith","Jones"]

then running with a vanilla >terraform plan gave me + chosenname = "The second element is Smith"

Upvotes: 0

Glen Thomas
Glen Thomas

Reputation: 10744

If anyone came here trying to figure out why this doesn't work with terragrunt; you need to escape the quotes:

terragrunt apply -var 'listvar=[\"abc1\", \"abc2\", \"abc3\"]'

Upvotes: 1

Innocent Anigbo
Innocent Anigbo

Reputation: 4777

I was able to get this to work as follow:

1) Your variable file should reflect as follow:

 variable "listvar" {
      description = "some varaible to list"
      type = "list"
    }

2) Then run the apply command as exactly as follow:

terraform apply -var 'listvar=["abc1", "abc2", "abc3"]'

I hope that helps

https://www.terraform.io/intro/getting-started/variables.html

Upvotes: 12

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