Up to this point, we have worked hard to give you a solid foundation of Ansible, so that whatever your desired automation task, you can implement it with ease and confidence. However, when you really start to ramp up your automation, how do you ensure that you can handle any condition that arises in a graceful manner? For example, how can you ensure that when you have to initiate long-running actions, you can run them asynchronously and come back to them to check on the results reliably later? Or, if you are updating a large group of servers, how can you ensure that the play fails early if a handful of servers suffer failures? The last thing you want to do is to roll out a broken update (let's face it, problems do occur with everyone's code from time to time) across a hundred servers—far better to detect that a small percentage have failed...
Practical Ansible 2
By :
Practical Ansible 2
By:
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.
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