Can't use variables or locals on block labels

[ivantopo]

Nomad version

Nomad v1.0.0-rc1 (afea734825ebaade422bbf2d31364abff6def928)

Operating system and Environment details

Ubuntu 20.04.1 LTS

Issue

I was trying to use locals/vars to customize the name of a job, following the example in the docs but I'm getting this error:

Error getting job struct: Error parsing job file from locals-bug.nomad:
locals-bug.nomad:10,6-8: Invalid string literal; Template sequences are not allowed in this string. To include a literal "$", double it (as "$$") to escape it., and 2 other diagnostic(s)

Reproduction steps

• Define variables and/or locals in a job file
• Try to interpolate any variable and/or locals on the job name label.

Job file (if appropriate)

variables {
  name = "app"
  suffix = "cluster"
}

locals {
  job_name = "${var.name}_${var.suffix}"
}

job "${local.job_name}" {
  datacenters = [ "FSN" ]

  group "app-nodes" {
    count = 3

    task "app-node" {
      driver = "docker"

      config {
        network_mode = "host"
        image = "hello-world:latest"
      }
    }
  }
}