For more information on concepts covered in this lesson, you can check out:
Here are the command-line snippets used in this lesson:
$ tree portfolio/
$ vim portfolio/wsgi.py
$ source venv/bin/activate
$ python -m pip install gunicorn
$ python -m pip freeze > requirements.txt
$ vim Procfile
$ git status
$ git commit -am "Replace Django development web server with Gunicorn"
$ git push heroku
$ heroku open
$ heroku logs --tail
$ heroku config:set WEB_CONCURRENCY=4
asgiref==3.4.1
dj-database-url==0.5.0
Django==3.2.7
django-heroku==0.3.1
gunicorn==20.1.0
psycopg2==2.9.2
pytz==2021.3
sqlparse==0.4.2
whitenoise==5.3.0
web: gunicorn portfolio.wsgi