Ansible's code has always been designed to be modular—indeed, this is one of its core strengths. Whether that is through the use of modules to perform tasks or through plugins (as we will see shortly), Ansible's modular design allows it to be as versatile and powerful as it has demonstrated itself to be so far in this book. As with modules, Ansible plugins are all written in Python and are expected to ingest and return data in a certain well-defined format (more on this later). Ansible's plugins are often invisible in their function in that you rarely call them by name in your commands or playbooks, yet they are responsible for some of the most important features Ansible has to offer, including SSH connectivity, the ability to parse inventory files (in INI format, YAML, or otherwise), and the ability to run jinja2 filters on your...
Practical Ansible 2
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Practical Ansible 2
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Overview of this book
Ansible enables you to automate software provisioning, configuration management, and application roll-outs, and can be used as a deployment and orchestration tool. While Ansible provides simple yet powerful features to automate multi-layer environments using agentless communication, it can also solve other critical IT challenges, such as ensuring continuous integration and continuous deployment (CI/CD) with zero downtime.
In this book, you'll work with Ansible 2.9 and learn to solve complex issues quickly with the help of task-oriented scenarios. You'll start by installing and configuring Ansible on Linux and macOS to automate monotonous and repetitive IT tasks and get to grips with concepts such as playbooks, inventories, and network modules. As you progress, you'll gain insight into the YAML syntax and learn how to port between Ansible versions. In addition to this, you'll also understand how Ansible enables you to orchestrate multi-layer environments such as networks, containers, and the cloud.
By the end of this Ansible book, you'll be well - versed in writing playbooks and other related Ansible code to overcome just about all of your IT challenges, from infrastructure-as-code provisioning to application deployments, and even handling the mundane day-to-day maintenance tasks that take up so much valuable time.
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Current Title:
Practical Ansible 2
Table of Contents (18 chapters)
Preface
Section 1: Learning the Fundamentals of Ansible
Free Chapter
Getting Started with Ansible
Understanding the Fundamentals of Ansible
Defining Your Inventory
Playbooks and Roles
Section 2: Expanding the Capabilities of Ansible
Consuming and Creating Modules
Consuming and Creating Plugins
Coding Best Practices
Advanced Ansible Topics
Section 3: Using Ansible in an Enterprise
Network Automation with Ansible
Container and Cloud Management
Troubleshooting and Testing Strategies
Getting Started with Ansible Tower
Assessments
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Customer Reviews