Microservices are the new kids on the block. They are a way of solving problems, but it does not mean that they will always be the best solution. Microservices are a full and complex architecture that you need to understand deeply in order to be able to apply them successfully in the real world.
We know that understanding and having everything in place for microservices can take time and can be very complex, so for this reason we wrote this book--to give you a small guide to microservices, from A to Z. This book will only be a glimpse of what you can do with microservices, but we hope that it will be at least a helpful start into this world.
We will start our journey in this book by explaining the foundations of this architecture, the basic knowledge you will need to have. As you advance through the book, we will be increasing the level of difficulty. However, we will guide you through every step of the process, so at the end of the book you will be able to know whether a microservice architecture is the best solution for your problem and how can you apply this architecture.
Enjoy your microservices!
Chapter 1, What are Microservices?, will teach you all the basics of microservices.
Chapter 2, Development Environment, will take you through setting up your development machine to build microservices successfully.
Chapter 3, Application Design, will help you start designing your application, creating the foundation of your project.
Chapter 4, Testing and Quality Control, looks at how important testing your application is and how can you add tests to your application.
Chapter 5, Microservices Development, will cover building a microservices application, explaining each step involved.
Chapter 6, Monitoring, covers how to monitor your application so that you can always know how your application is behaving.
Chapter 7, Security, focuses on how you can add an extra layer of complexity to your application to make it more secure.
Chapter 8, Deployment, explains how you can deploy your application successfully.
Chapter 9, From Monolithic to Microservices, discusses an example of how a monolithic application can be transformed into a microservice.
Chapter 10, Strategies for Scalability, outlines how you can create a scalable application.
Chapter 11, Best Practices and Conventions, will refresh your knowledge about the best practices and conventions you should use in an application.
Chapter 12, Cloud and DevOps, looks at the different cloud providers and the DevOps world.
To follow along with this book, you’ll need a computer with an Internet connection to download the required software and Docker images. At some point, you will need at least a text editor or an IDE, and we highly recommend PHPStorm for this job.
This book is for experienced PHP developers who want to go a step ahead in their careers and start building successful scalable and maintainable applications, all based on microservices. After reading the book, they will be able to know whether microservices are the best solutions to their problems and if it is the case, create a successful application.
In this book, you will find a number of text styles that distinguish between different kinds of information. Here are some examples of these styles and an explanation of their meaning.
Code words in text, database table names, folder names, filenames, file extensions, pathnames, dummy URLs, user input, and Twitter handles are shown as follows: "The next lines of code read the link and assign it to the to the BeautifulSoup function."
A block of code is set as follows:
version: '2'
services:When we wish to draw your attention to a particular part of a code block, the relevant lines or items are set in bold:
version: '2'
services:Any command-line input or output is written as follows:
$ uname -r
3.10.0-229.el7.x86_64
New terms and important words are shown in bold. Words that you see on the screen, for example, in menus or dialog boxes, appear in the text like this: "Click on the toolbar whale for Preferences... and other options."
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