DevOps Dictionary

Pulumi is an infrastructure as code (IaC) tool that lets teams define and manage cloud resources using general-purpose languages such as TypeScript, Python, Go, or C#. It addresses the challenge of provisioning and updating infrastructure consistently across environments by expressing networks, compute, databases, and IAM permissions as code, then using Pulumi’s engine to preview changes, apply updates, and store state (a record of what’s deployed) so it can safely calculate what should change next.

With Pulumi, infrastructure changes can be reviewed, tested, reused, and automated in CI/CD using the same workflows as application code; without it, teams often rely on manual console changes or ad hoc scripts, which increases configuration drift, makes rollbacks harder, and raises the risk of outages or security misconfigurations. This gap exists because cloud platforms are dynamic, and without a stateful, repeatable workflow it’s difficult to keep real resources aligned with the intended design.