cookiecutter-django/{{cookiecutter.project_slug}}/app.json

{
  "name": "{{cookiecutter.project_slug}}",
  "description": "{{cookiecutter.description}}",
  "env": {
    "BUILDPACK_URL": "https://github.com/heroku/heroku-buildpack-python",
    "DJANGO_SETTINGS_MODULE": "config.settings.production",
    "DJANGO_SECRET_KEY": {
      "description": "A secret key for verifying the integrity of signed cookies.",
      "generator": "secret"
    },
    "DJANGO_ALLOWED_HOSTS": {
      "description": "Comma-separated list of hosts",
      "value": ".herokuapp.com"
    },
    "DJANGO_ADMIN_URL": {
      "description": "A secret URL for the Django admin",
      "generator": "secret"
    },
    "DJANGO_AWS_ACCESS_KEY_ID": "",
    "DJANGO_AWS_SECRET_ACCESS_KEY": "",
    "DJANGO_AWS_STORAGE_BUCKET_NAME": "",
    "DJANGO_MAILGUN_SERVER_NAME": "",
    "DJANGO_MAILGUN_API_KEY": ""
    "MAILGUN_SENDER_DOMAIN": ""{% if cookiecutter.use_sentry_for_error_reporting == "y" -%},
    "DJANGO_SENTRY_DSN": ""{%- endif %}
  },
  "scripts": {
    "postdeploy": "python manage.py migrate"
  },
  "addons": [
    {
      "plan": "heroku-postgresql:hobby-dev",
      "options": {
         "version": "{{ cookiecutter.postgresql_version }}"
      }
    },
    "heroku-redis:hobby-dev",
    "mailgun"
  ]
}