Book Image

Cloud Native Python

By : Manish Sethi
Book Image

Cloud Native Python

By: Manish Sethi

Overview of this book

Businesses today are evolving so rapidly that having their own infrastructure to support their expansion is not feasible. As a result, they have been resorting to the elasticity of the cloud to provide a platform to build and deploy their highly scalable applications. This book will be the one stop for you to learn all about building cloud-native architectures in Python. It will begin by introducing you to cloud-native architecture and will help break it down for you. Then you’ll learn how to build microservices in Python using REST APIs in an event driven approach and you will build the web layer. Next, you’ll learn about Interacting data services and building Web views with React, after which we will take a detailed look at application security and performance. Then, you’ll also learn how to Dockerize your services. And finally, you’ll learn how to deploy the application on the AWS and Azure platforms. We will end the book by discussing some concepts and techniques around troubleshooting problems that might occur with your applications after you’ve deployed them. This book will teach you how to craft applications that are built as small standard units, using all the proven best practices and avoiding the usual traps. It's a practical book: we're going to build everything using Python 3 and its amazing tooling ecosystem. The book will take you on a journey, the destination of which, is the creation of a complete Python application based on microservices over the cloud platform

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Table of Contents (14 chapters)
Preface
Preface
What this book covers
What you need for this book
Who this book is for
Conventions
Reader feedback
Customer support
Free Chapter
1
Introducing Cloud Native Architecture and Microservices
Introducing Cloud Native Architecture and Microservices
Introduction to cloud computing
The cloud native concepts
Understanding the twelve-factor app
Setting up the Python environment
Summary
2
Building Microservices in Python
Building Microservices in Python
Python concepts
Modeling microservices
Building microservices
Testing the RESTful API
Summary
3
Building a Web Application in Python
Building a Web Application in Python
Getting started with applications
Creating application users
Creating tweets from users
CORS - Cross-Origin Resource Sharing
Session management
Cookies
Summary
4
Interacting Data Services
Interacting Data Services
MongoDB - How it is advantageous, and why are we using it?
Setting up MongoDB
Summary
5
Building WebViews with React
Building WebViews with React
Understanding React
Setting up the React environment
Building webViews with React
User authentication
Testing the React webViews
Summary
6
Creating UIs to Scale with Flux
Creating UIs to Scale with Flux
Understanding Flux
Summary
7
Learning Event Sourcing and CQRS
Learning Event Sourcing and CQRS
Introduction
Understanding Event Sourcing
Introduction to CQRS
Kafka as an eventstore
Summary
8
Securing the Web Application
Securing the Web Application
Network security versus application security
A word on developing security-enabled web applications
Summary
9
Continuous Delivery
Continuous Delivery
Evolution of continuous integration and continuous delivery
Continuous integration
Jenkins - a continuous integration tool
Setting up a Jenkins job
Understanding continuous delivery
Summary
10
Dockerizing Your Services
Dockerizing Your Services
Understanding Docker
Deploying an application on Docker
Summary
11
Deploying on the AWS Platform
Deploying on the AWS Platform
Getting started with Amazon Web Services (AWS)
Building application infrastructure on AWS
Continuous Deployment for a cloud native application
Summary
12
Implementing on the Azure Platform
Implementing on the Azure Platform
Getting started with Microsoft Azure
CI/CD pipeline using Jenkins with Azure
Summary
13
Monitoring the Cloud Application
Monitoring the Cloud Application
Monitoring on the cloud platform
AWS-based services
Microsoft Azure services
Open source monitoring tool
Summary

Building microservices

In this book, we will use Flask as a web framework to build our microservices. Flask is a powerful web framework, which is easy to learn and simple to use. Additionally, in Flask, we need a little boilerplate code to get a simple app up and running.

Since we will create our application using the twelve-factor app concept, we will begin by ensuring that we have a centralized code base. By now, you should know how to create a GitHub repository. If not, make sure you create it as per the blogpost link provided in Chapter 1, Introducing Cloud Native Architecture and Microservices. We will be pushing the code regularly to the repository.

Assuming you have created the repository during the course of this book, we will use the GitHub repository (https://github.com/PacktPublishing/Cloud-Native-Python.git).

So, let's set up our local directory in sync with the...

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