Ansible - Radically simple configuration-management, application deployment, task-execution, and multi-node orchestration engine
Chart.js - Easy, object oriented client side graphs for designers and developers.
Jenkins - Jenkins is an open-source continuous integration server with 300+ plugins to support all kinds of software development
D3.js - D3.js is a JavaScript library for manipulating documents based on data. D3 helps you bring data to life using HTML, SVG, and CSS.
Puppet Enterprise - Get started with Puppet Enterprise, or upgrade or expand.
Google Charts - Interactive charts for browsers and mobile devices.