Simon Fraser - Python Microservices Development: Build efficient and lightweight microservices using the Python tooling ecosystem, 2nd Edition
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- Book:Python Microservices Development: Build efficient and lightweight microservices using the Python tooling ecosystem, 2nd Edition
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Use Python microservices to craft applications that are built as small standard units using proven best practices and avoiding common errors
Key Features- Become well versed with the fundamentals of building, designing, testing, and deploying Python microservices
- Identify where a monolithic application can be split, how to secure it, and how to scale it once ready for deployment
- Use the latest framework based on asynchronous programming to write effective microservices with Python
The small scope and self-contained nature of microservices make them faster, cleaner, and more scalable than code-heavy monolithic applications. However, building microservices architecture that is efficient as well as lightweight into your applications can be challenging due to the complexity of all the interacting pieces.
Python Microservices Development, Second Edition will teach you how to overcome these issues and craft applications that are built as small standard units using proven best practices and avoiding common pitfalls. Through hands-on examples, this book will help you to build efficient microservices using Quart, SQLAlchemy, and other modern Python tools
In this updated edition, you will learn how to secure connections between services and how to script Nginx using Lua to build web application firewall features such as rate limiting. Python Microservices Development, Second Edition describes how to use containers and AWS to deploy your services. By the end of the book, youll have created a complete Python application based on microservices.
What you will learn- Explore what microservices are and how to design them
- Configure and package your code according to modern best practices
- Identify a component of a larger service that can be turned into a microservice
- Handle more incoming requests, more effectively
- Protect your application with a proxy or firewall
- Use Kubernetes and containers to deploy a microservice
- Make changes to an API provided by a microservice safely and keep things working
- Identify the factors to look for to get started with an unfamiliar cloud provider
This book is for developers who want to learn how to build, test, scale, and manage Python microservices. Readers will require basic knowledge of the Python programming language, the command line, and HTTP-based application principles. No prior experience of writing microservices in Python is assumed.
Table of Content- Section 1: Python Web Services - Understanding Microservices
- Discovering Quart
- Coding, Testing, and Documenting - the Virtuous Cycle
- Section 2: Designing Jeeves
- Splitting the Monolith
- Interacting with Other Services
- Securing Your Services
- Making a Dashboard
- Section 3: Deployment, Running, and Scaling -Packaging and Running Runnerly
- Deploying Containers
- Whats next?
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Python Microservices Development
Second Edition
Build efficient and lightweight microservices using the Python tooling ecosystem
Simon Fraser
Tarek Ziad
BIRMINGHAMMUMBAI
Python Microservices Development
Second Edition
Copyright 2021 Packt Publishing
All rights reserved. No part of this book may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, without the prior written permission of the publisher, except in the case of brief quotations embedded in critical articles or reviews.
Every effort has been made in the preparation of this book to ensure the accuracy of the information presented. However, the information contained in this book is sold without warranty, either express or implied. Neither the author(s), nor Packt Publishing or its dealers and distributors, will be held liable for any damages caused or alleged to have been caused directly or indirectly by this book.
Packt Publishing has endeavored to provide trademark information about all of the companies and products mentioned in this book by the appropriate use of capitals. However, Packt Publishing cannot guarantee the accuracy of this information.
Producer: Shailesh Jain
Acquisition Editor Peer Reviews: Saby D'Silva
Project Editor: Rianna Rodrigues
Content Development Editor: Alex Patterson
Copy Editor: Safis Editing
Technical Editor: Karan Sonawane
Proofreader: Safis Editing
Indexer: Rekha Nair
Presentation Designer: Pranit Padwal
First published: July 2017
Second edition: September 2021
Production reference: 1280921
Published by Packt Publishing Ltd.
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Birmingham
B3 2PB, UK.
ISBN 978-1-80107-630-2
www.packt.com
Simon Fraser is a Site Reliability Engineer for Cisco Meraki. He has over twenty years of experience in computing, both developing and running systems. He has worked as a Systems Administrator for an internet service provider; an infrastructure and high-performance computing engineer at the Welcome Sanger Institute, and as a Firefox Release Engineer at Mozilla. He studied Cybernetics and Computer Science at the University of Reading and has also taught academic courses in programming for scientists.
I would like to thank Emma Apted and Helen Cook for their frequent support and encouragement, ranging from proofreading to miming a book opening when I'm clearly not working. My father George Fraser passed on his immeasurable skill at finishing a project just before the deadline, and my mother Elizabeth Fraser showed me how to explain concepts and inform people through years of teaching. This book would also not be possible without Tarek Ziad's work on the 1st edition and the solid base on which to build, as well as the work of Development Editor Alex Patterson, Reviewer William Kahn-Greene, and Project Editor Rianna Rodrigues.
We might stand on the shoulders of giants, but we also build on a huge structure made by every one of us, so I would also like to thank everyone I've worked with over the years in all my different teams. Yes, even you.
Tarek Ziad is a Software Engineer, located in Burgundy, France. He works at Elastic, building tools for developers. Before Elastic, he worked at Mozilla for 10 years, and he founded a French Python user group, called AFPy. Tarek has also written several articles about Python for various magazines, and a few books in French and English.
I would like to thank Freya, Suki, Milo, and Amina for being so supportive of all my book projects.
Will Kahn-Greene has been building things in Python and other languages since the late 90s. He manages the crash ingestion pipeline at Mozilla and maintains several Python libraries. When he's waiting for CI to run tests, he builds things with wood, tends his tomato plants, and cooks for four.
Python Microservices Development introduces the design and creation of a microservice-based application using the popular Python programming language, and the Quart web framework. In this book, you will learn about microservice architecture and how it differs from the traditional monolithic approach, what the benefits are, as well as potential trouble that needs overcoming.
This book is for people familiar with the fundamentals of the Python programming language who want to start writing web services, or who have inherited a web service they want to modernize. It is expected that the reader will be familiar with simple Python structures such as functions and loops, as well as some more advanced features such as decorators. Some familiarity with using web applications would be helpful, although the fundamentals of application design are covered.
Chapter 1, Understanding Microservices, introduces the concepts behind microservices, the differences between monolithic applications and microservices, common benefits and pitfalls, as well as testing and scaling.
Chapter 2, Discovering Quart, covers the Quart web framework and the ways in which it can respond to requests, create templated documents, act as middleware, handle errors, and read configuration.
Chapter 3, Coding, Testing, and Documentation: the Virtuous Cycle, teaches you about the different types of testing that are possible, what benefits each type has, and how to set up automatic testing, as well as generating documentation in CI pipelines.
Chapter 4, Designing Jeeves, looks at Jeeves, which is the sample application we use in this book to explain the various concepts behind microservices. We introduce what we need Jeeves to do and describe a monolithic approach to application design, covering the web API interface, database use, and worker pools.
Chapter 5, Splitting the Monolith, builds on the monolithic Jeeves described in previous chapter. This chapter offers guidance on how to identify components that may be good microservices, measuring the effects of changes on the software architecture, and how to cleanly migrate features to new microservices.
Chapter 6, Interacting with Other Services, explains how to make web requests to other services, how to configure and decide where to send those queries, and how to cache results, as well as make the data transfer more efficient.
Chapter 7, Securing Your Services, looks at how authentication, tokens, encryption, and security vulnerabilities are all essential topics to consider for any service, and here we build an authentication microservice for Jeeves, as well as discuss various things to consider when making an application secure against attack.
Chapter 8, Making a Dashboard, discusses how many applications will have a human view. In this chapter we add a dashboard to Jeeves so that it can be controlled using a ReactJS application, as well as discussing where best to add the front-end into the microservice architecture.
Chapter 9
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