$ show chef/bento
Bento is a tool that automates the creation of Vagrant base boxes for a wide range of operating systems (Linux, Windows, macOS, FreeBSD, Solaris) using HashiCorp Packer. It provides a Ruby CLI (`bento`) that wraps Packer builds, manages metadata, runs Test Kitchen validation, and uploads boxes to Vagrant Cloud. The repository contains parameterized Packer HCL templates, OS-specific variable files, provisioner scripts (shell and PowerShell), and Windows unattended answer files. The architecture is a CLI orchestrator that delegates to external tools (Packer, Vagrant, VirtualBox, VMware, etc.) with a focus on reproducibility and multi-provider support. Although it originated from the Chef ecosystem, it is a standalone infrastructure tool used to produce the official 'bento' Vagrant boxes.
The LLM identified 4 files worth highlighting for reuse:
Defines Packer source blocks for all supported providers (VirtualBox, VMware, Parallels, QEMU, UTM, Hyper-V) using computed locals and shared variables. This pattern minimizes duplication and allows adding new providers with minimal changes, making it reusable for any multi-provider Packer project.
Implements conditional script selection based on OS family and architecture using nested ternary logic. This builder orchestrates the provisioning sequence (guest tools, cleanup, optimization) without hardcoding paths, making it adaptable to new OSes and providers.
A modular PowerShell script that installs guest additions for VirtualBox, VMware, Parallels, QEMU/UTM, and Hyper-V via a switch on `$env:PACKER_BUILDER_TYPE`. It is self-contained, idempotent, and can be reused in any Windows Packer build with minor modifications.
A Ruby module that generates Packer variable files from YAML configuration, runs Packer builds, and collects build metadata (timestamps, git revisions, checksums). It abstracts the complexity of invoking Packer with the correct flags and can be extracted as a standalone library for automating Packer workflows.