Use a Dynamic Inventory

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🌙 Lab

Details

Oracle Linux Automation Engine, the open-source software for provisioning and configuration management, uses an inventory file to work against managed nodes or hosts in your infrastructure. This inventory file contains a list of servers, their IP addresses, and other optional connection information.

A static inventory file works well if your infrastructure hardly changes.

However, your infrastructure is likely in constant flux when using the cloud. Therefore, it would be great to have a way to have your inventory dynamically updated as hosts come and go.

Objectives

In this tutorial, you’ll learn to:

Setup Oracle Linux Automation Engine
Create an OCI Dynamic Inventory
Use the OCI Dynamic Inventory with a Playbook.

Prerequisites

A minimum of two Oracle Linux systems with the following configuration:
- a non-root user with sudo permissions
- ssh keypair for the non-root user
- the ability to SSH from one host to another using a passwordless SSH login