AngularJS is a JavaScript-based open-source front-end web application framework mainly maintained by Google and by a community of individuals and corporations to address many of the challenges encountered in developing single-page applications.
Spring Boot is an open source Java-based framework used to create micro-services. It is developed by Pivotal Team and is used to build stand-alone and production-grade Spring applications.
Ansible is open source software that automates software provisioning, configuration management, and application deployment. Ansible connects via SSH, remote PowerShell or via other remote APIs.