HCL2 variables not parsed from environment

[valenvb]

Nomad version

Nomad v1.0.0 (cfca6405ad9b5f66dffc8843e3d16f92f3bedb43)

Operating system and Environment details

Ubuntu 18.04, tested in zsh 5.4.2 and bash 4.4.20

Issue

Using environment variables to define HCL2 variables (as described in the docs) does not work.

Running a job results in the following output:

$ nomad run test.nomad 
Error getting job struct: Error parsing job file from test.nomad:
<nil>: Unset variable "text"; A used variable must be set or have a default value; see https://packer.io/docs/configuration/from-1.5/syntax for details.

Reproduction steps

1. Create a jobspec as below.
2. set environment variable as described in the docs $ export NOMAD_VAR_text="hello"
3. Run job: $ nomad run test.nomad

inline-ing the variable also does not work: $ NOMAD_VAR_text=hello nomad run test.nomad

Job file (if appropriate)

variable "text" {
  type  = string
}

job "repro" {
  datacenters = ["dc1"]
  type = "batch"
  group "repro" {

    task "a" {
      driver = "docker"
      config {
        image = "alpine:3"
        command = "echo"
        args = [ var.text ]
      }
    }
  }
}

[notnoop]

Thanks @valenvb . That was a 🤦 bug. I've fixed the issue for 1.0.1, and removed the environment variables docs. I'm very sorry we didn't catch this earlier, but aiming to have a release out very soon.

[github-actions]

I'm going to lock this issue because it has been closed for 120 days ⏳. This helps our maintainers find and focus on the active issues.
If you have found a problem that seems similar to this, please open a new issue and complete the issue template so we can capture all the details necessary to investigate further.