Deploying Python Web Apps on Google App Engine

Table of Contents

  1. Overview
  2. Prerequisites
  3. Setup
  4. Creating a Python Web App
  5. Configuring the App.yaml File
  6. Deploying the Web App
  7. Conclusion

Overview

In this tutorial, you will learn how to deploy Python web apps on Google App Engine. Google App Engine is a fully-managed platform that allows developers to build, run, and scale applications. By the end of this tutorial, you will be able to deploy your own Python web app on Google App Engine.

Prerequisites

Before starting this tutorial, you should have the following:

  • Basic knowledge of Python
  • Google Cloud Platform account
  • Google Cloud SDK installed on your machine

Setup

  1. Sign in to your Google Cloud Platform account or create a new one.
  2. Install the Google Cloud SDK by following the instructions for your operating system from the Google Cloud SDK documentation.

  3. Initialize the Google Cloud SDK by running the following command in your terminal or command prompt:

    gcloud init

    This command will guide you through the setup process and allow you to select your project.

  4. Verify the installation by running the following command:

    gcloud version

    You should see the version number displayed in the output.

Creating a Python Web App

  1. Create a new directory for your Python web app.

    mkdir my-web-app
cd my-web-app

  2. Create a new virtual environment inside the directory.

    python3 -m venv venv

  3. Activate the virtual environment.

    • On Unix or Linux:

      source venv/bin/activate

    • On Windows:

      venv\Scripts\activate

  4. Install the necessary dependencies for your web app.

    pip install Flask

    Replace Flask with any other Python library you want to use in your web app.

Configuring the App.yaml File

  1. Create a new file called app.yaml in your web app directory.

    touch app.yaml

  2. Open the app.yaml file in a text editor and add the following configuration:

    runtime: python39

handlers:
- url: /.*
  script: auto

    In this example, we are using Python 3.9 as the runtime. You can change the runtime version based on your needs.

Deploying the Web App

  1. Deploy your web app to Google App Engine using the following command:

    gcloud app deploy

    You might be prompted to choose a region for your app. Select the region nearest to your target audience.

  2. After the deployment is complete, you will see the URL where your web app is accessible.

    Deployed service [default] to [https://your-app-id.appspot.com]

    Note down the URL for future use.

Conclusion

Congratulations! You have successfully deployed your Python web app on Google App Engine. You learned how to set up the necessary tools, create a Python web app, configure the app.yaml file, and deploy the app to the App Engine. You can now share your web app with others or continue enhancing its functionality. Happy coding!

Please note that this tutorial provides a basic example of deploying a Python web app on Google App Engine. There are many more advanced features and configurations available that can be explored further.

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