Duplicate job block error when using nomad-pack plan for cron jobs

[FirstPiterSky]

Description: We are encountering a 400 error when attempting to create tasks in Nomad using the nomad-pack plan command. The error is related to duplicate job blocks in the rendered job file.

Steps to Reproduce:

• use any template to generate the job file:

  [[ range $key, $ObjAll := var "jobs" . ]]
  job "[[ var "job_prefix" $ ]]_cron_[[ $ObjAll.name ]]" {
  ~~~~~
  [ [- end ]]

• render command works successfully

  ./nomad-pack render ./cron --var-file="./cron/cron.hcl" --to-dir ./out

• Run the following command:

  ./nomad-pack plan ./cron --var-file="./cron/cron.hcl"

• Error message is as follows:

  ! Failed To Parse Job Specification
  
  Error:   Unexpected response code: 400 (Failed to parse job: input.hcl:164,1-48: Duplicate job block; Only one block of type "job" is allowed. Previous definition was at input.hcl:2,1-32.
  input.hcl:326,1-59: Duplicate job block; Only one block of type "job" is allowed. Previous definition was at input.hcl:2,1-32.
  input.hcl:488,1-34: Duplicate job block; Only one block of type "job" is allowed. Previous definition was at input.hcl:2,1-32.
  ~~~~~
  input.hcl:3890,1-45: Duplicate job block; Only one block of type "job" is allowed. Previous definition was at input.hcl:2,1-32.
  input.hcl:4052,1-45: Duplicate job block; Only one block of type "job" is allowed. Previous definition was at input.hcl:2,1-32.)
  Context: 
      - Template Name: fita_cron/templates/cron.nomad.tpl
      - Registry Name: <<local folder>>
      - Pack Name: cron
      - Pack Ref: <<none>>
      - Pack Path: /worckflow/fita/deploy/nomad/packs/cron
      - Deployment Name: cron

  Expected Behavior: The job specification should be parsed and tasks should be created successfully in Nomad.

Actual Behavior: The command fails with a 400 error due to multiple "job" blocks in the generated file.

[pkazmierczak]

Hi @FirstPiterSky, thanks for reporting this issue. We'll look into it!