Can you explain the concept of dynamic inventory in Ansible and its application?

Dynamic inventory in Ansible is a way to automatically obtain the list of hosts and their parameters, instead of using a static file describing the inventory. Such inventory is usually implemented via scripts or plugins that query external sources (cloud providers, databases, APIs) and generate an up-to-date list of hosts.

Using dynamic inventory is convenient when infrastructure changes frequently, such as in cloud environments where servers are created and destroyed dynamically. It ensures always having an актуальный list of hosts without manual updates.

Example: a script that queries AWS API and returns a list of instances with specific tags in JSON format, which Ansible uses as inventory.