“Staytus is a complete solution for publishing the latest information about any issues with your web applications, networks or services. Along with absolutely beautiful public & admin interfaces, Staytus is a powerful tool for any organization with customers that rely on them to be online 24/7.”
Staytus is build on Ruby and is really easy to install and setup. The latest version offers a nice clean REST API to pull issues, post issues, update issues and change the service status. It has a clean and intuitive admin interface to get you started fast.
It also has theme support, so you can easily make the design your own!