Multy

Multy is a tool that lets you write one infrastructure configuration and deploy it to AWS, Azure, or Google Cloud Platform. It acts as a cloud-agnostic layer on top of Terraform, translating your high-level resource definitions into the specific syntax required by each cloud provider. This means you can define a virtual machine, a database, or object storage once, and then choose which cloud to deploy it to without rewriting your code. The core value is portability; you are not locked into a single vendor's ecosystem.

The tool works by providing a custom Terraform provider. You set up your cloud account credentials, write your configuration using Multy's resource types, and then deploy using standard Terraform commands. Multy handles the conversion to the correct AWS, Azure, or GCP Terraform resources behind the scenes. It is open-source and can be self-hosted, or you can use a managed API service. A key feature is the ability to export your configuration as pure Terraform code, so you can stop using Multy at any time without losing your work.

Multy is most useful for DevOps teams and startups that want the flexibility to switch cloud providers based on cost, performance, or customer requirements. It is ideal for companies using cloud credits from multiple providers, as it simplifies managing infrastructure across them. It also helps teams build more resilient systems by making it easier to set up active-active or disaster recovery configurations in different clouds. If your infrastructure will only ever live in one cloud, Multy might add unnecessary complexity, but for multi-cloud strategies, it saves significant time and effort.