Infrastructure as code (IAC) is an automation practice that streamlines the provisioning and management of IT infrastructure by converting it into software code, thereby enhancing deployment speed, consistency, and cross-team collaboration while reducing manual processes and complexity. This approach is crucial for handling complex environments in large organizations, as it allows developers to define infrastructure requirements in code, leading to improved efficiency and reduced human error. IAC can be implemented using two main approaches—imperative, which specifies step-by-step commands, and declarative, which defines the desired end state—each utilizing different programming languages. Best practices for IAC include regular testing, maintaining a single source of truth, deploying version management, and ensuring robust monitoring to maintain visibility and control. Various tools, such as Chef, Ansible, Terraform, and Puppet, are available to facilitate IAC deployment, with their suitability depending on organizational needs and goals. Dynatrace enhances IAC effectiveness by integrating intelligent observability and monitoring-as-code solutions, enabling proactive issue identification and remediation to optimize IT environments and support DevOps initiatives.