Using an attribute in template_file data source hangs when inside a module

[jsonmaur]

Terraform Version

0.7.10

Affected Resource(s)

• data.template_file

Terraform Configuration Files

main.tf

module "testing" {
  source = "./my-module"
}

my-module/main.tf

data "template_file" "main" {
  template = "$${val}"
  vars {
    val = "${null_resource.main.id}"
  }
}

resource "null_resource" "main" { }

Debug Output

...
2016/11/15 00:54:03 [ERROR] No DOT origin nodes found.
...
2016/11/15 00:54:08 [DEBUG] vertex "meta.count-boundary (count boundary fixup)", waiting for: "module.testing.data.template_file.main"
2016/11/15 00:54:13 [DEBUG] vertex "meta.count-boundary (count boundary fixup)", waiting for: "module.testing.data.template_file.main"

Expected Behavior

It should create the resource and complete the process.

Actual Behavior

It creates the resource, but Terraform completely hangs with the message module.testing.data.template_file.main: Refreshing state.... Pressing ctrl+c shows Interrupt received. Gracefully shutting down..., but still never completes the process. In debug mode, it shows the above "DEBUG" message every 5 seconds. Everything works fine after a second apply.

Steps to Reproduce

1. terraform get
2. terraform apply

Works as expected if modules are not used. Could be related to #10014.

[jsonmaur]

Thanks for the quick response! 👍

[ghost]

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