Seems like general reference complex variable doesn't work

[archenroot]

I go to dynamodb module only to validate (as I had lots of issues finally :-)), there is definitely one AWS related bug in terraform at moment:
hashicorp/terraform#21330

It requires to define in main.tf to have:

provider "aws" {
  region = "${var.region}"
}

and define default via variables.tf

The real issue here is the reference to complex types:

local_secondary_index       = "${var.dynamodb_table_local_secondary_index[count.index]}"
global_secondary_index      = "${var.dynamodb_table_secondary_index[count.index]}"
ttl                         = "${var.dynamodb_table_ttl[count.index]}"

I get:

rror: Unsupported argument

  on main.tf line 19, in resource "aws_dynamodb_table" "table":
  19:   local_secondary_index  = "${var.dynamodb_table_local_secondary_index[count.index]}"

An argument named "local_secondary_index" is not expected here. Did you mean
to define a block of type "local_secondary_index"?


Error: Unsupported argument

  on main.tf line 20, in resource "aws_dynamodb_table" "table":
  20:   global_secondary_index = "${var.dynamodb_table_secondary_index[count.index]}"

An argument named "global_secondary_index" is not expected here. Did you mean
to define a block of type "global_secondary_index"?


Error: Unsupported argument

  on main.tf line 21, in resource "aws_dynamodb_table" "table":
  21:   ttl                    = "${var.dynamodb_table_ttl[count.index]}"

[archenroot]

@crisboarna - I think the issue is related to my specific v of Terraform 0.12.8...

[crisboarna]

Not sure what is the precise issue you are having but they may also be related to HCL 0.12 changes. You could either try using Terraform 0.11.x or try doing terraform 0.12upgrade to convert it all to 0.12 HCL. PR welcome ;)

[archenroot]

@crisboarna - yeah in general I fixed all issues, so will push them as PR

[crisboarna]

Added updates for Terraform 0.12.