Gitlab CI/CD - Monorepo

GitLab CI/CD
#1

I want to build a monorepo CI/CD based on Gitlab, I think I’m getting stuck at variable expansion inside the if clause. Is there a work around, or could this be a Feature Request for future implementation?

.deploy-serverless-aws:
  stage: deploy
  before_script:
    - cd services/$WORKDIR/
    - sls plugin install -n serverless-python-requirements
    - python3 -m pip install pytest
    - python3 -m pip install -r requirements.txt
    - python3 -m pytest -sq --disable-warnings
  script:
    - serverless deploy --stage $ENV --region ap-southeast-1
  rules:
    - if: '$CI_PIPELINE_SOURCE == "push"'
      changes:
        - services/$WORKDIR/
        - .gitlab-ci.yml
  
deploy-app1:
  extends: .deploy-serverless-aws
  variables:
    WORKDIR: app1

To be clear, I can move the rules to deploy-app1 job and remove the variable and it works, I just think it would be more elegant and avoid duplication if the variable can be expanded before evaluating the changes condition.

#2

This might be nothing, but have you tried quoting the variable values:

deploy-app1:
  extends: .deploy-serverless-aws
  variables:
    WORKDIR: "app1"

Cheers,

Sarah