Pulumi

Pulumi is an open-source infrastructure as code platform that allows developers to define, deploy, and manage cloud infrastructure using general-purpose programming languages instead of domain-specific configuration languages. Infrastructure is written as code in languages such as TypeScript, JavaScript, Python, Go, and .NET, and Pulumi translates that code into cloud resources via provider plugins.

Pulumi supports a wide range of environments, including major public clouds like AWS, Azure, and Google Cloud, as well as Kubernetes and other services. It emphasizes a programmable approach to infrastructure, enabling developers to use familiar language features such as loops, conditionals, functions, and tests to model complex setups. Projects can share reusable components and libraries, promoting consistency across teams.

Key concepts include Pulumi programs, stacks, and config. The platform maintains state about deployed resources, which can be stored in the Pulumi Service (a managed backend) or in local/alternative backends. Secrets can be encrypted and managed within the workspace. The Pulumi CLI provides commands such as pulumi up to create or update resources and pulumi destroy to tear them down, and it integrates with common CI/CD pipelines for automated deployments.

Pulumi positions itself as a multi-cloud alternative to traditional IaC tools, offering both an open-source engine and a commercial service that adds collaboration, governance, and policy capabilities. By enabling infrastructure to be authored in general-purpose languages, Pulumi aims to streamline workflows for developers and operators who prefer software development practices while managing cloud resources across multiple providers.