Book Image

Ansible for Real-Life Automation

By : Gineesh Madapparambath
Book Image

Ansible for Real-Life Automation

By: Gineesh Madapparambath

Overview of this book

Get ready to leverage the power of Ansible’s wide applicability to automate and manage IT infrastructure with Ansible for Real-Life Automation. This book will guide you in setting up and managing the free and open source automation tool and remote-managed nodes in the production and dev/staging environments. Starting with its installation and deployment, you’ll learn automation using simple use cases in your workplace. You’ll go beyond just Linux machines to use Ansible to automate Microsoft Windows machines, network devices, and private and public cloud platforms such as VMWare, AWS, and GCP. As you progress through the chapters, you’ll integrate Ansible into your DevOps workflow and deal with application container management and container platforms such as Kubernetes. This Ansible book also contains a detailed introduction to Red Hat Ansible Automation Platform to help you get up to speed with Red Hat AAP and integration with CI/CD and ITSM. What’s more, you’ll implement efficient automation solutions while learning best practices and methods to secure sensitive data using Ansible Vault and alternatives to automate non-supported platforms and operations using raw commands, command modules, and REST API calls. By the end of this book, you’ll be proficient in identifying and developing real-life automation use cases using Ansible.
Table of Contents (22 chapters)
1
Part 1: Using Ansible as Your Automation Tool
6
Part 2: Finding Use Cases and Integrations
16
Part 3: Managing Your Automation Development Flow with Best Practices

An introduction to Kubernetes

Kubernetes is an open source container orchestration platform where we can deploy and manage our containerized applications without worrying about the underlying layers. This model of service is known as Platform as a Service (PaaS), where developers have the freedom to deploy their applications and other required resources, such as storage, network, and secrets, without assistance from the platform team.

The Kubernetes platform contains many components to manage container deployment and orchestration, as shown in Figure 11.1:

Figure 11.1 – The components of a Kubernetes cluster (source: https://kubernetes.io/docs/concepts/overview/components/)

Let’s briefly have a look at these components in the following sections.

The Kubernetes control plane

The control plane is responsible for making decisions on behalf of the cluster and application, such as scheduling the application Pods, detecting and responding to...