Ansible is an open-source IT automation engine that automates cloud provisioning, configuration management, application deployment, intra-service orchestration, and many other IT needs. It is designed to be simple to use, agentless, and powerful.
An example of using Ansible is to deploy a web application. You can use Ansible to configure the web server, create the database, install the application code, and configure the application. By using Ansible, you can easily deploy the application to multiple servers with just a few commands.