Ansible-DK is a new tool that bundles Ansible with related tools like Ansible lint and Test Kitchen into a single package. It addresses issues like complex Ansible environments on developer workstations by providing a self-contained installation of Ansible and dependencies using Omnibus. Ansible-DK aims to simplify infrastructure as code by handling installation and upgrades, and integrates with Test Kitchen for testing roles and playbooks on virtual machines. The creator acknowledges that Chef previously bundled related tools but sees Ansible-DK as improving upon that model and welcomes community contributions to the project.