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A cutdown version of the terraform looks like:

resource "azurerm_kubernetes_cluster_node_pool" "worker" {

for_each              = var.worker_node_pools

name                  = each.key

kubernetes_cluster_id = azurerm_kubernetes_cluster.k8s.id

zones                 = null

vm_size               = each.value.node_type

node_count            = each.value.node_count

min_count             = each.value.node_count

max_count             = var.max_node_count

enable_auto_scaling   = each.value.autoscaling

os_type               = "Linux"

os_disk_size_gb       = 100

os_disk_type          = each.value.disk_type

vnet_subnet_id        = var.subnet_create ? azurerm_subnet.subnet[0].id : data.azurerm_subnet.extantsubnet[0].id

}

@gifted-journalist-92338 I think this might be due to the terraform var flag being unable to parse this complex value. Does this zero price still appear if you place the worker node pools variable in a terraform var file and load it that way?

Yes, that does work - once I had converted from JSON format (which I normally pass to terraform as an environment variable) Does the command line flag want JSON, or terraform HCL format?

So I believe right now the command line flag only accepts simple key value pairs in hcl format. I’ll raise an issue to track supporting more complex hcl and json structures and paste here so you can follow

Brilliant, thanks for the help.

Hmm, could you just echo the json into a terraform.tfvars.json file and then get Infracost to read that

Yes, that looks like it will work! It is "painful" to have to write to the input folder, but might actually be cleaner than the massive set of command-line options I was using for the full thing. It is even nicer once I ignore the help text and just give --terraform-var-file an absolute path ;)

@gifted-journalist-92338 you might benefit from a config-file with the new template syntax so you can define var-files for the projects. Myself or @mysterious-teacher-68276 would be happy to help write one for your repo too. Depending on where your repo lives (github/gitlab/azure-repos/bitbucket), I can send you an example of how to use the config file with template syntax in your pipeline too. This docs page shows an example with gitlab, the steps for other source control systems would be similar.

@gifted-journalist-92338 here’s an issue for you to follow on the

terraform-var

improvements: https://github.com/infracost/infracost/issues/2396

@white-airport-8778 I'll have a read of the documentation - I think, with @mysterious-teacher-68276's help 👍, I have it working for my first few simple test cases.