What are some alternatives?
When comparing AWS CloudFormation and Terraform, you can also consider the following products
Codeship - Codeship is a fast and secure hosted Continuous Delivery platform that scales with your needs.
Puppet - Get started with Puppet Enterprise, or upgrade or expand.
Bamboo - Bamboo is a continuous integration and deployment tool that ties automated builds, tests and releases together in a single workflow.
Rancher - Open Source Platform for Running a Private Container Service
Octopus Deploy - Octopus is a friendly deployment automation tool for .NET developers.
Packer - Packer is an open-source software for creating identical machine images from a single source configuration.