Terragrunt out to environment variable GitLab CI/CD

Question

I'm trying to run a "Terragrunt plan -out=$PLAN" but it seems I'm unable to? My goal here is to output a plan then show the plan and post to a GitLab merge request.

How should I go about accomplishing this?

Here is what I have so far:

    - terragrunt plan -out $PLAN
    - "terragrunt show --json $PLAN | convert_report > $JSON_PLAN_FILE"
  artifacts:
    paths:
      - $PLAN
    reports:
      terraform: $JSON_PLAN_FILE
  only:
    - merge_requests

Answer 1

I decided to just create files instead of piping out to a variable and it works.