Open source cloud computing software CloudStack, which is developed by all-volunteer association the Apache Software Foundation (ASF), has this week graduated from the Apache Incubator to become a top level project. The move signifies the maturity of CloudStack as an open source tool for creating, managing, and deploying infrastructure cloud services.

CloudStack uses existing hypervisors such as KVM, vSphere, and XenServer/XCP for virtualisation and supports the Amazon Web Services (AWS) API as well as offering its own. Target environments include service providers and enterprises where it can be used to set up on-demand cloud computing services or a private cloud for use by internal employees.