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DevOps for Serverless Applications
DevOps for Serverless Applications

DevOps for Serverless Applications: Design, deploy, and monitor your serverless applications using DevOps practices

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DevOps for Serverless Applications

Introducing Serverless

This book will introduce us to the world of the serverless approach to information technology, looking at multiple different cloud service providers, such as AWS, Azure, Google, OpenWhisk, and a few others. We will look in detail at each cloud service, as well as the different methods that are used to apply DevOps to them. We will look at the different use cases and learn the best practices for each of them.  

The following topics will be covered in this introductory chapter:

  • Introduction to serverless
  • Core concept
    • Backend as a service (BaaS)
    • Function as a service (FaaS)
    • AWS Lambda
    • Azure functions
    • Google functions
    • OpenWhisk
  • Pros and cons of serverless
  • DevOps with serverless

Introduction to serverless

When we hear the word serverless, the first thing that comes to mind is, oh, my code will magically run without any server!. In a way, this is right: the serverless approach is a process where we deploy the code into a cloud and it is executed automatically, without worrying about the underlying infrastructure, renting or buying servers, scaling, monitoring, or capacity planning. The service provider will take care of all these things. Also, you won't believe how cheap it is and how much easier it is to manage. Now, you are probably thinking, how is that possible?. To look at its workings in more detail, let's compare the serverless approach with something we do in our daily lives. 

The serverless approach is a bit like dealing with our laundry. We all need to wash our clothes, and for this, we need to buy a washing machine. But the usage of this washing machine will be about 10 to 15 hours per week, and the rest of the time the washing machine will be idle. Interestingly, we buy servers to host our application, and most of the time, our servers are idle when waiting for requests and sit unused. We have piles of servers that are hardly managed or decommissioned. As they are not properly used or managed, resources, such as the power supply, capacity, storage, and memory, are wasted. 

Also, while doing the laundry, the washing machine will allow only a certain load and volume. The same applies to servers: They too allow only a certain volume and load. The more the load or traffic, the slower the processing will be, or it may stop completely. Now, to take care of our extra load, we might decide to buy a bigger washing machine, which will allow a bigger volume of laundry and support a larger load. But again, this high-end machine will take the same resources if we have to wash a huge pile of clothes or just one piece of clothing, which is wasteful. The same is the case in our server analogy. When catering for higher traffic or requests, we could buy a high-end server. But we will end up using the same resources for 10 requests a day as we would for 10,000 requests, even with a high-end server.

Also, to use the washing machine, we have to separate our clothes before washing, select the program, and add the detergent and softener, and if these elements are not handled properly, we might ruin our clothes. Similarly, when using a server, we have to make sure we install the right software—as well as the right version of the software—make sure that it is secure enough, and always monitor whether the services are running.

Also, if you are renting an apartment, then you might not have a washing machine, or perhaps you might find launderettes to be cheaper when you wash you laundry in bulk, and also less worrisome. So launderettes or coin-operated laundry machines can be rented whenever you need to wash your clothes. Likewise, many companies, such as AWS, Azure, or Google, started by renting their servers. So we too can rent a server, and the provider will take care of the storage, memory, power, and basic setup.

Say that we've decided that a coin-operated washing machine at the local launderette is our best option. Now we just put the coin in and wash our clothes, but we still need to make sure we add detergent and fabric softener, and set the right program, otherwise we will end up ruining our clothes. Likewise, when we rent a server on the cloud, we might not bother dealing with the power, storage, and memory. But we still need to install the required software, monitor the application service, and upgrade the software version from time to time, as well as monitor the performance of the application.

Say that I found a new launderette, one that has a delivery service and that would charge me per item of clothing, so I can send clothes in bulk or one piece at a time. They will wash and iron my clothes too. Now, I don't need to worry about which detergent or comforter to use, or what cleaning program to use, and I also don't need to own an iron. But in the case of the world of information technology, companies are still using the rental coin laundry system. They still lease servers and manage them through Platform as a Service (PaaS), still manage application downtime, upgrade the software version, and monitor services.

But this can all be changed by adopting a serverless approach. Serverless computing will automatically provision and configure the server and then execute the code. As the traffic rises, it will scale automatically, apply the required resources, and scale down once the traffic eases down.

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Key benefits

  • Understand various services for designing serverless architecture
  • Build CD pipelines using various cloud providers for your serverless applications
  • Implement DevOps best practices when building serverless applications

Description

Serverless applications are becoming very popular among developers and are generating a buzz in the tech market. Many organizations struggle with the effective implementation of DevOps with serverless applications. DevOps for Serverless Applications takes you through different DevOps-related scenarios to give you a solid foundation in serverless deployment. You will start by understanding the concepts of serverless architecture and development, and why they are important. Then, you will get to grips with the DevOps ideology and gain an understanding of how it fits into the Serverless Framework. You'll cover deployment framework building and deployment with CI and CD pipelines for serverless applications. You will also explore log management and issue reporting in the serverless environment. In the concluding chapters, you will learn important security tips and best practices for secure pipeline management. By the end of this book, you will be in a position to effectively build a complete CI and CD delivery pipeline with log management for serverless applications.

Who is this book for?

DevOps for Serverless Applications is for DevOps engineers, architects, or anyone interested in understanding the DevOps ideology in the serverless world. You will learn to use DevOps with serverless and apply continuous integration, continuous delivery, testing, logging, and monitoring with serverless.

What you will learn

  • Explore serverless fundamentals and effectively combine them with DevOps
  • Set up CI and CD with AWS Lambda and other popular Serverless service providers with the help of the Serverless Framework
  • Perform monitoring and logging with serverless applications
  • Set up a dynamic dashboard for different service providers
  • Discover best practices for applying DevOps to serverless architecture
  • Understand use cases for different serverless architectures

Product Details

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Publication date : Sep 29, 2018
Length: 264 pages
Edition : 1st
Language : English
ISBN-13 : 9781788625661
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Product Details

Publication date : Sep 29, 2018
Length: 264 pages
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Table of Contents

11 Chapters
Introducing Serverless Chevron down icon Chevron up icon
Understanding Serverless Frameworks Chevron down icon Chevron up icon
Applying DevOps to AWS Lambda Applications Chevron down icon Chevron up icon
DevOps with Azure Functions Chevron down icon Chevron up icon
Integrating DevOps with IBM OpenWhisk Chevron down icon Chevron up icon
DevOps with Google Functions Chevron down icon Chevron up icon
Adding DevOps Flavor to Kubeless Chevron down icon Chevron up icon
Best Practices and the Future of DevOps with Serverless Chevron down icon Chevron up icon
Use Cases and Add-Ons Chevron down icon Chevron up icon
DevOps Trends with Serverless Functions Chevron down icon Chevron up icon
Other Books You May Enjoy Chevron down icon Chevron up icon

Customer reviews

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(8 Ratings)
5 star 87.5%
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2 star 0%
1 star 12.5%
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Shailendra S. Dec 16, 2018
Full star icon Full star icon Full star icon Full star icon Full star icon 5
As a whole, this is an excellent resource particularly for someone that is new to Serverless functions (Function-as-a-Service (FaaS)). Easier to read and better organized, and examples showcasing the covered concepts. If you're just starting with Serverless applications, this is what you need.It also includes best practices for Serverless functions architecture services by AWS Lambda, Azure Functions, IBM OpenWhisk, Google Functions, Kubeless with their approach to DevOps.The book is well written, easy to follow, and a perfect mix of tutorials and Serverless concepts. Highly recommend!
Amazon Verified review Amazon
Sudhir Jan 12, 2019
Full star icon Full star icon Full star icon Full star icon Full star icon 5
This is a must-read book for anyone who wants to understand and implement DevOps culture and process for Serverless applications.It covers the concept of Serverless with real world example, then it talks about different cloud service provider who provides serverless service, it also provides understanding of serverless framework and has many different hands-on examples for the framework. It also goes into details about how to setup CI/CD for lambda functions, azure functions, google functions, openwhisk and kubeless with multiple different tutorials. It also walks through different best practises around Serverless and DevOps. So overall it is good mix of Serverless concept and also DevOps. I definitely will recommend this book to anyone who wants to understand the concept of Serverless, DevOps for Serverless and Serverless framework.
Amazon Verified review Amazon
Swapnil Dec 16, 2018
Full star icon Full star icon Full star icon Full star icon Full star icon 5
If you are interested in learning new horizons in growing technology especially in the field of serverless applications using devops, this book is a right fit. Very well explained with examples and for all kind of audiences.
Amazon Verified review Amazon
Sachin Deshpande Jan 04, 2019
Full star icon Full star icon Full star icon Full star icon Full star icon 5
Great book on devOps and serverless applications. Covers all aspects like design, deploy and managing your serverless application. Each core functions are covered in details like AWS, Azure, IBM OpenWhisk. Great read for anyone learning devOps and serverless applications.
Amazon Verified review Amazon
Denis Nov 04, 2018
Full star icon Full star icon Full star icon Full star icon Full star icon 5
If you are interested in Serverless ecosystem and wanted to get some hands-on trying simple serverless use cases in different platforms with a step by step approach, this book is the right choice.
Amazon Verified review Amazon
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