Why does my environment variable are equal to None on github actions?-CodePudding

I am trying to build a CI with GitHub actions for my django app. I defined my environment variables on github in settings -> secrets -> actions.

This is my ci.yaml file :


# name of our workflow
name: Django CI/CD Workflow

# triggers for our workflow
on: push


jobs:
  health-check-job: # health check job for testing and code formatting check
    runs-on: ubuntu-latest # os for running the job
    services:
      postgres: # we need a postgres docker image to be booted a side car service to run the tests that needs a db
        image: postgres
        env: # the environment variable must match with app/settings.py if block of DATBASES variable otherwise test will fail due to connectivity issue.
          POSTGRES_USER: postgres
          POSTGRES_PASSWORD: postgres
          POSTGRES_DB: github-actions
        ports:
          - 5432:5432 # exposing 5432 port for application to use
        # needed because the postgres container does not provide a healthcheck
        options: --health-cmd pg_isready --health-interval 10s --health-timeout 5s --health-retries 5
    steps:
      - name: Checkout code # checking our the code at current commit that triggers the workflow
        uses: actions/checkout@v2
      - name: Cache dependency # caching dependency will make our build faster.
        uses: actions/cache@v2 # for more info checkout pip section documentation at https://github.com/actions/cache
        with:
          path: ~/.cache/pip
          key: ${{ runner.os }}-pip-${{ hashFiles('**/requirements.txt') }}
          restore-keys: |
            ${{ runner.os }}-pip-
      - name: Setup python environment # setting python environment to 3.x
        uses: actions/setup-python@v2
        with:
          python-version: '3.x' # if you want multiple python version run just use matrix strategy in job config. See the documentation of GitHub Actions
      - name: Check Python version # checking the python version to see if 3.x is installed.
        run: python --version
      - name: Install requirements # install application requirements
        run: pip install -r pur_beurre/requirements.txt
      - name: Run Migrations # run migrations to create table in side car db container
        run: python pur_beurre/manage.py migrate
      - name: Run Test # running tests
        run: python pur_beurre/manage.py test

When it come ro Run Migration action, I have this error:

 File "/home/runner/work/P10/P10/pur_beurre/pur_beurre/settings.py", line 29, in <module>
    ALLOWED_HOSTS = os.environ.get("DJANGO_ALLOWED_HOSTS").split(" ")
AttributeError: 'NoneType' object has no attribute 'split'

But I did defined DJANGO_ALLOWED_HOSTS. It is equal to localhost. I also tried to define it as "localhost", but it doesnt work either.

CodePudding user response：

You are close - all you need is to pass secrets to env variables to your build step, like this:

- name: Run Migrations # run migrations to create table in side car db container
  run: python pur_beurre/manage.py migrate
  env:
     DJANGO_ALLOWED_HOSTS: ${{ secrets.DJANGO_ALLOWED_HOSTS }}

Secrets are not by default part of environment variables, so for each of them, you have to specify a separate line, if you have more of those.

CodePudding user response：

You need to set the environment variable at the script step level (it can also be done at the job or workflow level).

For this DJANGO_ALLOWED_HOSTS env variable specifically, it could look like this:

      - name: Run Migrations # run migrations to create table in side car db container
        run: python pur_beurre/manage.py migrate
        env: 
          DJANGO_ALLOWED_HOSTS: your_host_value # you can also use a secret variable