Open Source Chef Alternatives

Ansible is an open-source software provisioning, configuration management, and application-deployment tool. With Ansible you can streamline your deployment process, allowing you to roll out enterprise scale applications with the bush of a button or a command via the terminal. Ansible itself is written in Python and has a minimal learning curve, allowing you to build simple setup procedures that can manage all of your CI/CD needs.

Rundeck is an open source automation service with a web console, command line tools and a WebAPI. With Rundeck you easily run automation tasks across a set of nodes. Rundeck is avalible as two versions, Rundeck Community and Rundeck Enterprise, where the first mentiond is built for small teams. It addresses the technical complexity of Runbook Automation for solving non-production self-service. The later is aimed at teams and organizations at scale. It addresses the organizational complexity of teams and multiple clusters with self-service, incident response, and compliance and auditing features.

Terraform is an open-source infrastructure as code software tool created by HashiCorp. It allows infrastructure to be expressed as code in a simple, human readable language called HCL (HashiCorp Configuration Language). The Terraform CLI automatically reads configuration files and provides an execution plan of changes, which can be reviewed for safety and then applied and provisioned.