OpenStack Watcher provides a flexible and scalable resource optimization service for multi-tenant OpenStack-based clouds. Watcher provides a robust framework to realize a wide range of cloud optimization goals, including the reduction of data center operating costs, increased system performance via intelligent virtual machine migration, increased energy efficiency and more!

• Free software: Apache license
• Wiki: https://wiki.openstack.org/wiki/Watcher
• Source: https://opendev.org/openstack/watcher
• Bugs: https://bugs.launchpad.net/watcher
• Documentation: https://docs.openstack.org/watcher/latest/
• Release notes: https://docs.openstack.org/releasenotes/watcher/
• Design specifications: https://specs.openstack.org/openstack/watcher-specs/