Create an Azure storage account name with concatenated variables in Terraform

Question

We have a requirement to create an Azure storage account in Terraform. However, the naming convention required is to combine three declared variables, meaning the module will look something like the below:

resource "azurerm_storage_account" "example" {
  name    = "(var.first)(var.second)(var.third)"
  resource_group_name      = "rg01"
  location                 = "uksouth"
  account_tier             = "Standard"
  account_replication_type = "GRS"

It's become a bit of a struggle trying to achieve this and having pored over the Terraform guides, there doesn't appear to be any function that can enable us achieve this. Any ideas or suggestions?

Answer 1

You can use format():

resource "azurerm_storage_account" "example" {
  name    = format("%s%s%s", var.first, var.second, var.third)
  resource_group_name      = "rg01"
  location                 = "uksouth"
  account_tier             = "Standard"
  account_replication_type = "GRS"