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Learning DevOps
Learning DevOps

Learning DevOps: The complete guide to accelerate collaboration with Jenkins, Kubernetes, Terraform and Azure DevOps

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Learning DevOps

DevOps Culture and Practices

DevOps, a term that we hear more and more in enterprises with phrases such as We do DevOps or We use DevOps tools, is the contraction of the words Development and Operations.

DevOps is a culture different from traditional corporate cultures and requires a change in mindset, processes, and tools. It is often associated with continuous integration (CI) and continuous delivery (CD) practices, which are software engineering practices, but also with Infrastructure as Code (IaC), which consists of codifying the structure and configuration of infrastructure.

In this chapter, we will see what DevOps culture is, what DevOps principles are, and the benefits it brings to a company. Then, we will explain CI/CD practices and, finally, we will detail IaC with its patterns and practices.

In this chapter, the following topics will be covered:

  • Getting started with...

Getting started with DevOps

The term DevOps was introduced in 2007-2009 by Patrick Debois, Gene Kim, and John Willis, and it represents the combination of Development (Dev) and Operations (Ops). It has given rise to a movement that advocates bringing developers and operations together within teams. This is to be able to deliver added business value to users more quickly and hence be more competitive in the market.

DevOps culture is a set of practices that reduce the barriers between developers, who want to innovate and deliver faster, on the one side and, on the other side, operations, who want to guarantee the stability of production systems and the quality of the system changes they make.

DevOps culture is also the extension of agile processes (scrum, XP, and so on), which make it possible to reduce delivery times and already involve developers and business teams, but are often...

Implementing CI/CD and continuous deployment

We saw earlier that one of the key DevOps practices is the process of integration and continuous delivery, also called CI/CD. In fact, behind the acronyms of CI/CD, there are three practices:

  • Continuous integration (CI)
  • Continuous delivery (CD)
  • Continuous deployment

What does each of these practices correspond to? What are their prerequisites and best practices? Are they applicable to all?

Let's look in detail at each of these practices, starting with continuous integration.

Continuous integration (CI)

In the following definition given by Martin Fowler, there are three key things mentioned, members of a team, integrate, and as quickly as possible:

"Continuous Integration...

Understanding IaC practices

IaC is a practice that consists of writing the code of the resources that make up an infrastructure.

This practice began to take effect with the rise of DevOps culture and with the modernization of cloud infrastructure. Indeed, Ops teams that deploy infrastructures manually take time to deliver infrastructure changes due to inconsistent handling and the risk of errors. Also, with the modernization of the cloud and its scalability, the way an infrastructure is built requires a review of provisioning and change practices by adapting a more automated method.

IaC is the process of writing the code of the provisioning and configuration steps of infrastructure components to automate its deployment in a repeatable and consistent manner.

Before we look at the use of IaC, we will see what the benefits of this practice are.

...

Summary

In this first chapter, we saw that DevOps culture is a story of collaboration, processes, and tools. Then, we detailed the different steps of the CI/CD process and explained the difference between and that continuous deployment.

Finally, the last part explained how to use IaC, with its best practices.

In the next chapter, we will start with the implementation of IaC and how to provision an infrastructure with Terraform.

Questions

  1. Of which words is DevOps a contraction?
  2. Is DevOps a term that represents: the name of a tool, a culture or a society, or the title of a book?
  3. What are the three axes of DevOps culture?
  4. What is the objective of continuous integration?
  5. What is the difference between continuous delivery and continuous deployment?
  6. What is IaC?

Further reading

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Key benefits

  • Learn to utilize business resources effectively to increase productivity and collaboration
  • Leverage the ultimate open source DevOps tools to achieve continuous integration and continuous delivery (CI/CD)
  • Ensure faster time-to-market by reducing overall lead time and deployment downtime

Description

The implementation of DevOps processes requires the efficient use of various tools, and the choice of these tools is crucial for the sustainability of projects and collaboration between development (Dev) and operations (Ops). This book presents the different patterns and tools that you can use to provision and configure an infrastructure in the cloud. You'll begin by understanding DevOps culture, the application of DevOps in cloud infrastructure, provisioning with Terraform, configuration with Ansible, and image building with Packer. You'll then be taken through source code versioning with Git and the construction of a DevOps CI/CD pipeline using Jenkins, GitLab CI, and Azure Pipelines. This DevOps handbook will also guide you in containerizing and deploying your applications with Docker and Kubernetes. You'll learn how to reduce deployment downtime with blue-green deployment and the feature flags technique, and study DevOps practices for open source projects. Finally, you'll grasp some best practices for reducing the overall application lead time to ensure faster time to market. By the end of this book, you'll have built a solid foundation in DevOps, and developed the skills necessary to enhance a traditional software delivery process using modern software delivery tools and techniques

Who is this book for?

If you are a developer or a system administrator interested in understanding continuous integration, continuous delivery, and containerization with DevOps tools and techniques, this book is for you.

What you will learn

  • Become well versed with DevOps culture and its practices
  • Use Terraform and Packer for cloud infrastructure provisioning
  • Implement Ansible for infrastructure configuration
  • Use basic Git commands and understand the Git flow process
  • Build a DevOps pipeline with Jenkins, Azure Pipelines, and GitLab CI
  • Containerize your applications with Docker and Kubernetes
  • Check application quality with SonarQube and Postman
  • Protect DevOps processes and applications using DevSecOps tools
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Publication date : Oct 25, 2019
Length: 504 pages
Edition : 1st
Language : English
ISBN-13 : 9781838642730
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Publication date : Oct 25, 2019
Length: 504 pages
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Language : English
ISBN-13 : 9781838642730
Concepts :
Tools :

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Table of Contents

22 Chapters
Section 1: DevOps and Infrastructure as Code Chevron down icon Chevron up icon
DevOps Culture and Practices Chevron down icon Chevron up icon
Provisioning Cloud Infrastructure with Terraform Chevron down icon Chevron up icon
Using Ansible for Configuring IaaS Infrastructure Chevron down icon Chevron up icon
Optimizing Infrastructure Deployment with Packer Chevron down icon Chevron up icon
Section 2: DevOps CI/CD Pipeline Chevron down icon Chevron up icon
Managing Your Source Code with Git Chevron down icon Chevron up icon
Continuous Integration and Continuous Delivery Chevron down icon Chevron up icon
Section 3: Containerized Applications with Docker and Kubernetes Chevron down icon Chevron up icon
Containerizing Your Application with Docker Chevron down icon Chevron up icon
Managing Containers Effectively with Kubernetes Chevron down icon Chevron up icon
Section 4: Testing Your Application Chevron down icon Chevron up icon
Testing APIs with Postman Chevron down icon Chevron up icon
Static Code Analysis with SonarQube Chevron down icon Chevron up icon
Security and Performance Tests Chevron down icon Chevron up icon
Section 5: Taking DevOps Further Chevron down icon Chevron up icon
Security in the DevOps Process with DevSecOps Chevron down icon Chevron up icon
Reducing Deployment Downtime Chevron down icon Chevron up icon
DevOps for Open Source Projects Chevron down icon Chevron up icon
DevOps Best Practices Chevron down icon Chevron up icon
Assessments Chevron down icon Chevron up icon
Other Books You May Enjoy Chevron down icon Chevron up icon

Customer reviews

Rating distribution
Full star icon Full star icon Full star icon Full star icon Empty star icon 4
(4 Ratings)
5 star 50%
4 star 25%
3 star 0%
2 star 25%
1 star 0%
Sandeep Sharma Jul 26, 2020
Full star icon Full star icon Full star icon Full star icon Full star icon 5
The book covers all aspects of DevOps which every consultant need to know.
Amazon Verified review Amazon
Jacob Sep 03, 2020
Full star icon Full star icon Full star icon Full star icon Full star icon 5
El libro permite entender y separar las distintas herramientas que intervienen en DevOps. Ademas de la explicación a un nivel muy bueno, viene con los links para ver el código fuente en los repositorios de Git. Recomendable!
Amazon Verified review Amazon
MacCrea Bisel Feb 19, 2021
Full star icon Full star icon Full star icon Full star icon Empty star icon 4
I would suggest reading through each section before you work along with the steps. There’s lots of references to other resources that are not necessarily part of the topics being discussed
Amazon Verified review Amazon
Nick Jul 15, 2020
Full star icon Full star icon Empty star icon Empty star icon Empty star icon 2
The opening chapters start off well. They get into some higher level theory and philosophy behind DevOps. The later chapters are basically a culmination of how-to's that can be found on any of the products' web pages. There's no tips and tricks, no best practices, no "words of wisdom", no talk of common pitfalls, or anything about the how and whys of each product being used as it relates to DevOps. This books seems rushed. In my opinion, this book should be about $7.99.
Amazon Verified review Amazon
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