What main task is solved by using Ansible in automation of configuration and deployment?

The main task of Ansible is to automate configuration management and application deployment across multiple servers. Ansible allows describing the desired state of the infrastructure using simple YAML files (playbooks), and then automatically applying these configurations to target machines.

This addresses the following tasks:

• Ensuring consistency and repeatability of configurations.
• Simplifying and speeding up application deployment and updates.
• Reducing the risk of errors associated with manual management.
• Centralized infrastructure management without the need to install agents on servers.

Example: with Ansible, you can automatically install and configure a web server on dozens of machines with a single command by describing the necessary steps in a playbook.