missing support for hcl2 jobspec

[xinau]

Terraform Version

$ terraform -v                 
Terraform v0.14.3
+ provider registry.terraform.io/hashicorp/nomad v1.4.11

Nomad Version

$ nomad server members
Name         Address      Port  Status  Leader  Protocol  Build  Datacenter  Region
test.global  192.168.1.2  4648  alive   true    2         1.0.1  dc1         global

Provider Configuration

provider "nomad" {
  address   = "https://test.example.com:4646"
  ca_file   = "${path.root}/../private/nomad-ca.pem"
  cert_file = "${path.root}/../private/nomad-cli.pem"
  key_file  = "${path.root}/../private/nomad-cli-key.pem"
}

Affected Resource(s)

• nomad_job
• nomad_job_parser

Terraform Configuration Files

resource "nomad_job" "main" {
  jobspec = file("${path.root}/jobspec.hcl")
}

...
      template {
        data          = file("./prometheus.yml")
        destination   = "local/config/prometheus.yml"
        change_mode   = "signal"
        change_signal = "SIGHUP"
      }
...

Expected Behavior

1 resource created.

Actual Behavior

$ terraform apply                                             

Error: error parsing job: &errors.errorString{s:"Unexpected response code: 400 (input.hcl:30,25-30: Error in function call; Call to function \"file\" failed: filesystem function disabled.\ninput.hcl:30,25-30: Unsuitable value type; Unsuitable value: value must be known\ninput.hcl:37,23-28: Error in function call; Call to function \"file\" failed: filesystem function disabled.\ninput.hcl:37,23-28: Unsuitable value type; Unsuitable value: value must be known\ninput.hcl:42,23-28: Error in function call; Call to function \"file\" failed: filesystem function disabled.\ninput.hcl:42,23-28: Unsuitable value type; Unsuitable value: value must be known\ninput.hcl:47,23-28: Error in function call; Call to function \"file\" failed: filesystem function disabled.\ninput.hcl:47,23-28: Unsuitable value type; Unsuitable value: value must be known)"}

Steps to Reproduce

1. terraform apply

Important Factoids

HCL2 Language Support

[spol-ihq]

Same here,

Adding variables {} block at the top of the elasticsearch.hcl.template and using dynamic group {}:

variables {
  volumes_map = ["0", "1"]
}

job "elasticsearch {

(...)

Results in:

Error: error parsing jobspec: 1 error occurred:
	* invalid key: variables

  on nomad_jobs.tf line 14, in resource "nomad_job" "elasticsearch":
  14: resource "nomad_job" "elasticsearch" {

[lgfa29]

Thanks for the report @xinau!

@thiagonache updated our jobspec parser to use the HCL2 version from Nomad, and the fix will be available in the next release that will come out soon.

But HCL2 parsing is a bit more complex, so not everything is compatible yet. Your specific case (calling the file HCL2 function in the Nomad jobspec) is unfortunately not covered on #185.

Since the HCL2 spec is quite big, I created a new issue to track this specific functionality (#191).

@spol-ihq your use case should work in the next release 🎉

If there are any other HCL2 related problems please open a new issue.

Thank you all once again 😄

UPDATE: after some testing, it seems like only the file function doesn't work properly. I've updated #191 to reflect this.