Deployment on Heroku

1. Introduction

Heroku is a cloud platform that allows developers to build, run, and operate applications entirely in the cloud. Deploying a Django application on Heroku is straightforward and involves several key steps. This tutorial will guide you through the entire process from start to finish.

2. Prerequisites

Before you start, ensure you have the following:

• A Heroku account
• Heroku CLI installed on your machine
• Git installed on your machine
• A Django project ready to be deployed

3. Setting Up Your Django Project

First, ensure your Django project is ready for deployment. This involves several configurations:

import os
import django_heroku

# Other settings...

# Activate Django-Heroku.
django_heroku.settings(locals())
                    

4. Creating a Procfile

Create a file named Procfile in the root directory of your project. This file tells Heroku how to run your application.

web: gunicorn myproject.wsgi --log-file -
                    

5. Installing Gunicorn

Gunicorn is a Python WSGI HTTP Server for UNIX. It is a pre-fork worker model, which means it forks multiple worker processes to handle multiple requests simultaneously.

pip install gunicorn
                    

6. Creating a requirements.txt File

Create a requirements.txt file in the root directory of your project. This file should list all the dependencies of your project.

Django==3.2.7
gunicorn
django-heroku
                    

7. Initialize a Git Repository

If you haven't already, initialize a Git repository in your project directory:

git init
git add .
git commit -m "Initial commit"
                    

8. Deploying to Heroku

Login to Heroku using the Heroku CLI:

heroku login
                    

Create a new Heroku app:

heroku create my-django-app
                    

Deploy your code to Heroku:

git push heroku master
                    

9. Running Migrations

Run the database migrations on Heroku:

heroku run python manage.py migrate
                    

10. Accessing Your Application

Once the deployment is complete, you can access your application using the URL provided by Heroku:

https://my-django-app.herokuapp.com/
                    

11. Conclusion

Congratulations! You have successfully deployed your Django application on Heroku. With Heroku, you can easily manage and scale your applications with minimal effort.