Terraform: Can't output from list using index

[slimm609]

Terraform Version

v0.7.3

Affected Resource(s)

• "aws_network_interface"
  

  Terraform Configuration Files

resource "aws_network_interface" "database-lan2" {
  subnet_id = "${aws_subnet.private-subnet.id}"
  private_ips = ["10.0.1.5${count.index}"]
  security_groups = ["${aws_security_group.oracle_elb.id}"]
  attachment {
    instance = "${element(aws_instance.database.*.id, count.index)}"
    device_index = 1
  }
  count = "${var.database_count}"
}

resource "null_resource" "dblan-collect" {
    provisioner "local-exec" {
    command = "echo ${format("db%03d-priv", count.index +1)} ${formatlist("%s", aws_network_interface.database-lan2.*.private_ips, count.index)} > output/${format("priv_db%03d.txt", count.index +1)}"
    }
   count = "${var.database_count}"
   depends_on = ["aws_network_interface.database-lan2"]
}

I have tried using formatlist

${formatlist("%s", aws_network_interface.database-lan2.*.private_ips, count.index)}

which fails with

* At column 1, line 1: output of an HIL expression must be a string, or a single list (argument 4 is TypeList) in:

Also tried element

${element(aws_network_interface.database-lan2.*.private_ips, count.index)}

which fails with

* element: element() may only be used with flat lists, this list contains elements of type list in:

everything sets up correctly but fails during with the error while trying to output the private_ips from the aws_network_interface resource.

[donnoman]

this is how I resolved that same error with my elasticsearch domain resource

in variables

ip's below changed to protect the guilty.

variable "source_ips" {
  type = "list"
  default = ["8.8.8.8/32","4.4.4.4/32"]
}

  access_policies = <<CONFIG
{
    "Version": "2012-10-17",
    "Statement": [
        {
            "Action": "es:*",
            "Principal": "*",
            "Effect": "Allow",
            "Condition": {
                "IpAddress": { "aws:SourceIp": ["${join("\",\"", var.source_ips)}"] }
            }
        }
    ]
}
CONFIG

[cammellos]

Works, as if by magic! Thanks!

[mkjmdski]

I'm impressed by this hack!! :D It's really bad that terraform has got problems with supporting map of lists...

[hashibot[bot]]

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