There are several tools that can help you implement infrastructure as code (IAC) in a Ruby project. Some popular options include:

• Terraform: Terraform is a cloud-agnostic IAC tool that allows you to define and manage infrastructure as code using a declarative syntax. It supports a wide range of cloud providers and can be integrated with Ruby projects using the terraform-ruby-sdk gem.

• Puppet: Puppet is an open-source configuration management tool that allows you to manage and enforce infrastructure as code. It can be used to provision, configure, and manage infrastructure resources, including servers, databases, and networks. It also has a Ruby-based DSL (domain-specific language) that makes it easy to integrate with Ruby projects.

• Ansible: Ansible is a simple and powerful configuration management tool that uses YAML to define infrastructure as code. It can be used to automate the provisioning, configuration, and management of infrastructure resources, including servers, databases, and networks. It also has a Ruby API and a number of Ruby-based modules that can be used to integrate with Ruby projects.

• Chef: Chef is a popular configuration management tool that uses Ruby-based DSLs to define infrastructure as code. It can be used to automate the provisioning, configuration, and management of infrastructure resources, including servers, databases, and networks. It also has a number of Ruby-based libraries and integrations that can be used to integrate with Ruby projects.

In addition to these tools, there are also many other IAC tools and frameworks that can be used with Ruby projects, such as SaltStack, CloudFormation, and Terraform Enterprise.