DevOps Dictionary

Ansible is an open-source automation tool used to configure servers, deploy applications, and enforce consistent system settings across fleets of machines. It addresses the problem of manual, error-prone operational work by expressing desired changes as readable YAML “playbooks” that run over SSH or WinRM, typically without installing agents on managed hosts. At a high level, Ansible executes tasks in order, checks current state, and applies only the changes needed, making automation repeatable and easier to review in version control.

With Ansible, teams can standardize deployments and infrastructure changes and recover faster from drift, while without it those same steps are often performed by hand or via ad hoc scripts, increasing inconsistency, outages, and time to deliver. This gap exists because playbooks turn operational knowledge into declarative, reusable procedures that can be applied reliably across environments.