atlantis.yaml - Pass environment variables to extra_arguments

[mechastorm]

Repro

atlantis.yml

---
extra_arguments:
  - command_name: init
    arguments:
    - '-backend-config=env/${ENVIRONMENT}.backend.tfvars'

where ENVIRONMENT is the env set in atlantis plan environment

Expected Result

When I comment on the PR to do atlantis plan my-environment, it should run `terraform init -backend-config=env/my-environment.backend.tfvars

Actual Result

I get an error report from Atlantis stating

exit status 1: running "terraform init -no-color -backend-config=env/${ENVIRONMENT}.backend.tfvars" in "/home/shih.liong/.atlantis/repos/RCA-techops/atlantis-test-allinone/1/sandbox-us-west-2/terraform": 
invalid value "env/${ENVIRONMENT}.backend.tfvars" for flag -backend-config: Error reading env/${ENVIRONMENT}.backend.tfvars: open env/${ENVIRONMENT}.backend.tfvars: no such file or directory
Usage: terraform init [options] [DIR]
...

Description

I am trying to add additional arguments to the init stage of Terraform.

In our setup, we actually have a custom backend configs per environment. As such we need to initialize Terraform with our custom backend config file each time.

Without this, we cannot correctly start up the Terraform setup on each repo per environment.

[anubhavmishra]

@mechastorm Thanks for opening up this issue. We currently only support the environment variables in pre_plan, pre_apply, post_plan and post_apply steps, not in the extra arguments for commands for terraform. This should be an easy fix. Will let you know when we have a fix ready for this.

[anubhavmishra]

Cool, I have confirmed this behaviour. Will have a fix out soon.

[lkysow]

This was released in 0.1.3.