Error: var.zones is empty list of string

[naseemkullah]

Although I'm able to create clusters just fine, when I try to import a non related resource into a non related module within the same root directory, I get:

Error: Invalid index

  on .terraform/modules/gke_us_central.gke/terraform-google-modules-terraform-google-kubernetes-engine-3212e3b/modules/beta-public-cluster/main.tf line 37, in locals:
  37:   region   = var.region == null ? join("-", slice(split("-", var.zones[0]), 0, 2)) : var.region
    |----------------
    | var.zones is empty list of string

The given key does not identify an element in this collection value.

As you may notice, I am using a thin wrapper around the beta-public-cluster module, I pass in the value of zones in this wrapper, which is a 1 element array of zones.

Any idea what may be going on?

[naseemkullah]

The workaround was to comment out the various thin-wrapper-around-this-module
module instantiations, import the non-related resource, then uncomment the modules.

If there is any further insight as to what might be happening please let me know, if not feel free to close this issue.

[morgante]

I'm not really sure what could be causing this, I suspect it might be related to the pass-through.

Closing for now, but if anyone else encounters it we can reopen and investigate.

[omazin]

#294

[jamesthimont]

@morgante in safer-cluster-update-variant/main.tf the zones entry below is missing

module "gke" {
  source             = "../beta-private-cluster-update-variant/"
  project_id         = var.project_id
  name               = var.name
  regional           = var.regional
  region             = var.region
  ***zones              = var.zones***
  network            = var.network