DCImanager - DCImanager is a platform for managing physical equipment. Connect any physical equipment to a single platform. Use the platform to manage your servers, switches, PDU as well as physical and virtual networks.

Ansible Semaphore - Modern UI for Ansible

RackTables - Racktables is a nifty and robust solution for datacenter and server room asset management.

RunDeck - RunDeck is an open source automation service with a web console, command line tools and a WebAPI.

Opendcim - a free, web based Data Center Infrastructure Management application.

Semaphore - Semaphore is a fully managed, high performance testing and deployment solution for your company. A Continuous Integration tool.