django-lambda-deploy.yaml

image: python:3.9-alpine

before_script:
  - apk update
  - cd ~
  - mkdir .aws && touch .aws/credentials
  - printf "[cikguuapi]\naws_access_key_id = $AWS_ACCESS_KEY_ID\naws_secret_access_key = $AWS_SECRET_ACCESS_KEY" >> .aws/credentials


stages:          # List of stages for jobs, and their order of execution
  - build

build-job:       # This job runs in the build stage, which runs first.
  stage: build
  script:
    - echo "Compiling the code..."
    - apk add --no-cache --update postgresql-dev gcc python3-dev musl-dev libpq nodejs npm
    - pip install --upgrade pip setuptools
    - npm install -g serverless
    - cd /builds/farhan-helmy/django-lambda-deploy
    - pip install -r requirements.txt
    - npm i
    - npm run deploy
    - echo "Compile complete."

Using npm ci instead of npm install might be better for deployment: https://stackoverflow.com/a/53325242