Managing Complex YAML Structures Dynamically with Ansible

In modern infrastructure automation, working with structured data is essential. YAML, due to its readability and simplicity, is the format of choice for tools like Ansible, Kubernetes, and many others. As your automation tasks grow, you may find yourself needing to dynamically manipulate YAML files – particularly to extend or modify nested data structures.

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Using Dynamic KVM Inventories with Ansible for VM Lifecycle and Configuration Management

Ansible is a powerful automation tool that simplifies the management of IT infrastructure. One of its strengths is the ability to work with dynamic inventories, which allow Ansible to discover and manage systems on-the-fly. When working with a KVM (Kernel-based Virtual Machine) environment, leveraging a dynamic inventory can significantly streamline the management of virtual machines (VMs) throughout their lifecycle.

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Ansible Basics 04: The Inventories

An Ansible inventory is a structured list of hosts or nodes that Ansible can manage, providing a foundation for orchestrating automation tasks across a network. This inventory file typically contains information about the hosts’ IP addresses, connection details, and grouping, allowing users to organize and categorize systems based on their roles, functions, or other criteria.

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How to write more advanced Ansible inventory files?

Previously we took a look at creating a basic plain text file inventory for our Ansible automation project, but we will need more functionality when we start using it seriously. Luckily Ansible provides us some other ways to create groups of hosts and handle them. Let’s investigate what else can we do in an Ansible inventory!

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