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Implementing DevOps with Ansible 2
Implementing DevOps with Ansible 2

Implementing DevOps with Ansible 2: A step-by-step guide to automating all DevOps stages with ease using Ansible

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Paperback Jul 2017 266 pages 1st Edition
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Arrow left icon
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Full star icon Empty star icon Empty star icon Empty star icon Empty star icon 1 (1 Ratings)
Paperback Jul 2017 266 pages 1st Edition
eBook
zł59.99 zł158.99
Paperback
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eBook
zł59.99 zł158.99
Paperback
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Implementing DevOps with Ansible 2

Configuration Management Essentials

If you are reading this book, you are most likely looking for a consistent way to provision infrastructure, deploy code, and maintain the operational consistency of environments. These items all fit under Configuration Management, or CM for short. Configuration Management represents a cornerstone of DevOps and is something that Ansible manages very well. Configuration Management represents a way of development where automation can be used to provision and enforce the state, consistency, and accuracy of a set of systems. In a DevOps-oriented environment, Configuration Management will become increasingly critical for maintaining development environments, QA apparatuses and systems, production environments, and more. This is because the need to maintain such environments and keep a level of consistency among them is critical for deployment and...

Understanding Configuration Management

Unless you have been living in a bubble, you will probably have seen that Configuration Management automation has taken the IT world by storm. That is to say that hosts can now be automatically configured and provisioned to be in a specific state via code (Packages Installed, Users Created and so on). The idea that infrastructure can be defined and codified is not only novel but is now the norm. Configuration Management in many ways represents to infrastructure what software development represents to end-user software products. If it's unclear at this point what CM actually is, let's quickly define it:

Configuration Management is the detailed recording and updating of information that describes an enterprise's hardware and software. Such information typically includes the versions and updates that have been applied to installed...

Origins of Configuration Management

Configuration Management can be traced back in origins to the early 1950s, an era of punch cards and large mainframe computing apparatuses. Punch cards at the time often needed to be organized and delivered to the mainframe, and as a result of this specific ordering, a requirement was mandated by larger organizations to manage the configuration of such punch cards. After the golden days of punch cards, additional management requirements came to light with regard to maintaining the state of a given software system or IT apparatus. Entities capable of managing such a process at the time were limited to the government's CDC Update and IBM's IBM IEBUPDATE, respectively.

It wasn't until the early to mid 1990s that software Configuration Management (CM for short) began to be taken notice of in mid- to large-scale organizations. Companies...

The Aims of Configuration Management

Configuration Management's goal is to facilitate the lives of developers, quality assurance personnel, management, and operational personnel by providing them with the tools and automation necessary to track and implement additional changes and configurations for a target system. The general logic flow of Configuration Management goes something like this:

If I spend four hours configuring a given development system for a developer to use, and then the developer quits the next day, and a new developer gets hired, I have just wasted eight hours. Whereas if I spend eight hours writing a single set of automated scripts to automatically provision a development system and the automation takes 20 minutes to run from start to finish, I can now recreate the developer system easily and with minimal fuss and ceremony.

On a very basic level, this...

Basic Principles of Configuration Management

Configuration Management aims to help engineering organizations manage the infrastructure, create reusable automation, and provide a strategy for managing change within. As such, Configuration Management purports to provide the following basic principles:

  • Automate where automation is possible
  • Provide traceability within the enterprise
  • Provide developers, QA, operations, and management with a reproducible infrastructure that is managed through software-development best practices
  • Develop a strategy for how new hardware will be provisioned and configured (in an automated way)
  • Manage hardware configurations effectively and with strategy
  • Develop mechanisms that provide a self-service model for deploying infrastructure changes
  • Educate the organization on Configuration Management practices

Now that we have a basic understanding of the principles...

Configuration Management Best Practices

Now that we have a basic understanding of Configuration Management's overarching purpose and how it can be leveraged in an enterprise, let's take a look at some best practices involved in Configuration Management. Configuration Management in the modern software enterprise comes in many forms. Some of the more popular tools for Configuration Management are listed as follows:

  • Ansible
  • Chef
  • Puppet
  • CFEngine

Solutions such as these are mostly open source options that provide ways to keep and maintain infrastructure in code form, or IaC (Infrastructure as Code). For those unfamiliar with IaC, here is a general definition from Wikipedia:

Infrastructure as Code is the process of managing and provisioning computing infrastructure (processes, bare-metal servers, virtual servers, and so on) and their configuration through machine-processable...

Understanding Configuration Management


Unless you have been living in a bubble, you will probably have seen that Configuration Management automation has taken the IT world by storm. That is to say that hosts can now be automatically configured and provisioned to be in a specific state via code (Packages Installed, Users Created and so on). The idea that infrastructure can be defined and codified is not only novel but is now the norm. Configuration Management in many ways represents to infrastructure what software development represents to end-user software products. If it's unclear at this point what CM actually is, let's quickly define it:

Configuration Management is the detailed recording and updating of information that describes an enterprise's hardware and software. Such information typically includes the versions and updates that have been applied to installed software packages and the locations and network addresses of hardware devices.

Now that we have a basic idea of the textbook...

Origins of Configuration Management


Configuration Management can be traced back in origins to the early 1950s, an era of punch cards and large mainframe computing apparatuses. Punch cards at the time often needed to be organized and delivered to the mainframe, and as a result of this specific ordering, a requirement was mandated by larger organizations to manage the configuration of such punch cards. After the golden days of punch cards, additional management requirements came to light with regard to maintaining the state of a given software system or IT apparatus. Entities capable of managing such a process at the time were limited to the government's CDC Update and IBM's IBM IEBUPDATE, respectively.

It wasn't until the early to mid 1990s that software Configuration Management (CM for short) began to be taken notice of in mid- to large-scale organizations. Companies and organizations such as IBM and the Department of Defense were among the first adopters of Configuration Management techniques...

The Aims of Configuration Management


Configuration Management's goal is to facilitate the lives of developers, quality assurance personnel, management, and operational personnel by providing them with the tools and automation necessary to track and implement additional changes and configurations for a target system. The general logic flow of Configuration Management goes something like this:

If I spend four hours configuring a given development system for a developer to use, and then the developer quits the next day, and a new developer gets hired, I have just wasted eight hours. Whereas if I spend eight hours writing a single set of automated scripts to automatically provision a development system and the automation takes 20 minutes to run from start to finish, I can now recreate the developer system easily and with minimal fuss and ceremony.

On a very basic level, this is what Configuration Management is all about: saving time, saving money, saving resources, and minimizing waste. Yes, it...

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Key benefits

  • Learn how to use Ansible playbooks along with YAML and JINJA to create efficient DevOps solutions
  • Use Ansible to provision and automate Docker containers and images
  • Learn the fundamentals of Continuous Integration and Continuous Delivery and how to leverage Ansible to implement these modern DevOps
  • Learn the fundamentals of creating custom Ansible modules
  • Learn the fundamentals of Ansible Galaxy
  • Follow along step-by-step as we teach you to scale Ansible for your DevOps processes

Description

Thinking about adapting the DevOps culture for your organization using a very simple, yet powerful automation tool, Ansible 2? Then this book is for you! In this book, you will start with the role of Ansible in the DevOps module, which covers fundamental DevOps practices and how Ansible is leveraged by DevOps organizations to implement consistent and simplified configuration management and deployment. You will then move on to the next module, Ansible with DevOps, where you will understand Ansible fundamentals and how Ansible Playbooks can be used for simple configuration management and deployment tasks. After simpler tasks, you will move on to the third module, Ansible Syntax and Playbook Development, where you will learn advanced configuration management implementations, and use Ansible Vault to secure top-secret information in your organization. In this module, you will also learn about popular DevOps tools and the support that Ansible provides for them (MYSQL, NGINX, APACHE and so on). The last module, Scaling Ansible for the enterprise, is where you will integrate Ansible with CI and CD solutions and provision Docker containers using Ansible. By the end of the book you will have learned to use Ansible to leverage your DevOps tasks.

Who is this book for?

If you are a DevOps engineer, administrator, or developer and want to implement the DevOps environment in your organization using Ansible, then this book is for you.

What you will learn

  • Get to the grips with the fundamentals of Ansible 2.2 and how you can benefit from leveraging Ansible for DevOps.
  • Adapt the DevOps process and learn how Ansible and other tools can be used to automate it.
  • Start automating Continuous Integration and Continuous Delivery tasks using Ansible
  • Maximize the advantages of tools such as Docker, Jenkins, JIRA, and many more to implement the DevOps culture.
  • Integrate DevOps tools with Ansible
  • Extend Ansible using Python and create custom modules that integrate with unique specific technology stacks
  • Connect and control the states of various third-party applications such as GIT, SVN, Artifactory, Nexus, Jira, Hipchat, Slack, Nginx, and others

Product Details

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Publication date : Jul 21, 2017
Length: 266 pages
Edition : 1st
Language : English
ISBN-13 : 9781787120532
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Product Details

Publication date : Jul 21, 2017
Length: 266 pages
Edition : 1st
Language : English
ISBN-13 : 9781787120532
Vendor :
Red Hat
Languages :
Concepts :
Tools :

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Table of Contents

12 Chapters
DevOps Fundamentals Chevron down icon Chevron up icon
Configuration Management Essentials Chevron down icon Chevron up icon
Installing, Configuring, and Running Ansible Chevron down icon Chevron up icon
Playbooks and Inventory Files Chevron down icon Chevron up icon
Playbooks – Beyond the Fundamentals Chevron down icon Chevron up icon
Jinja in Ansible Chevron down icon Chevron up icon
Ansible Vault Chevron down icon Chevron up icon
Ansible Modules and Libraries Chevron down icon Chevron up icon
Integrating Ansible with CI and CD Solutions Chevron down icon Chevron up icon
Ansible and Docker Chevron down icon Chevron up icon
Extending Ansible Chevron down icon Chevron up icon
Ansible Galaxy Chevron down icon Chevron up icon

Customer reviews

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Mallikarjuna Reddy. R Jun 15, 2018
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There is nothing in the book, very very worst. money waste. don't buy it.
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