As AWS often changes IP addresses on autoscale instances and maintaining inventory files when using Ansible with AWS will be a laborious effort. Using the aws_ec2 dynamic inventory plugin is the best method to manage this.

Dynamic inventory is an Ansible plugin that makes an API call to AWS to obtain instance information during runtime. It dynamically provides ec2 instance details for AWS infrastructure management.

Read the full article on Medium: Setting Up a Dynamic Inventory using the aws_ec2 plugin

Topics Covered:

  • Installing and configuring the aws_ec2 plugin
  • Setting up boto3 and required dependencies
  • Creating dynamic inventory files
  • Filtering instances by tags and state
  • Best practices for managing cloud infrastructure with Ansible