How to Deploy a Python Flask Application on MilesWeb

Deploying a Python Flask application on MilesWeb is a straightforward process. Follow these steps to get your application up and running smoothly.

1. Set Up Your MilesWeb Account

Before starting, ensure you have:

An active hosting account with MilesWeb.
Access to your cPanel dashboard.

2. Prepare Your Flask Application

Ensure your Flask application is deployment-ready. This includes creating a requirements.txt file to list your application’s dependencies.

pip freeze > requirements.txt

3. Log in to cPanel

Access your MilesWeb cPanel account using your credentials.

4. Set Up the Python Application

Access the Python Application Setup

In cPanel, locate the Setup Python App icon under the Software section.

Create a New Python Application

Click on Create Application.
Choose the desired Python version.
Specify the application root directory (e.g., myapp).
Set the application URL (e.g., mydomain.com/myapp).
Define the application startup file (e.g., app.py).
Provide the application entry point (e.g., app:app if your Flask app object is named app).

5. Upload Your Application Files

Option 1: Use File Manager

Go to File Manager in cPanel.
Navigate to your application root directory (e.g., myapp).
Upload your Flask application files, including:

app.py
requirements.txt
Other necessary files.

Option 2: Use FTP

Use an FTP client to connect to your MilesWeb hosting account.
Upload the files to the specified directory.

6. Install Dependencies

Access the Terminal

In cPanel, find the Terminal or SSH Access icon under the Advanced section.
Navigate to your application root directory.

Activate Your Virtual Environment

Activate the virtual environment created by MilesWeb:

source /home/your_cpanel_username/virtualenv/myapp/3.x/bin/activate

Install Required Packages

Install the dependencies listed in requirements.txt:

pip install -r requirements.txt

7. Configure the WSGI File

Locate the WSGI File

In your application’s root directory, locate the WSGI file (commonly named passenger_wsgi.py).

Edit the WSGI File

Modify the WSGI file to point to your Flask application. It should look like this:

import sys
import os

# Add the app's directory to the PYTHONPATH
sys.path.insert(0, os.path.dirname(__file__))
from app import app as application  # Import your Flask app

8. Restart the Application

Go back to Setup Python App in cPanel.
Locate your application.
Click on Restart.

9. Access Your Application

Open your web browser and navigate to your application URL (e.g., mydomain.com/myapp). If everything is set up correctly, your Flask application should be live!

Troubleshooting

If you encounter any issues:

Check error logs in cPanel under Errors or the logs specific to your Python application.
Ensure your dependencies are correctly installed.
Verify the WSGI configuration.

By following these steps, you can seamlessly deploy your Flask application on MilesWeb. If you face any challenges, feel free to reach out for support!

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