Terraform - Iterators

iterators.tf

#
# Simple lists
#
locals {
  ip_addresses = ["10.0.0.1", "10.0.0.2"]
}

resource "example" "example" {
  for_each   = toset(local.ip_addresses)
  ip_address = each.key
}





#
# Lists of objects
#
locals {
  virtual_machines = [
    {
      ip_address = "10.0.0.1"
      name       = "vm-1"
    },
    {
      ip_address = "10.0.0.1"
      name       = "vm-2"
    }
  ]
}    

resource "example" "example" {
  for_each   = {
    for index, vm in local.virtual_machines:
    vm.name => vm # Perfect, since VM names also need to be unique
    # OR: index => vm (unique but not perfect, since index will change frequently)
  }
  name       = each.value.name
  ip_address = each.value.ip_address
}