An ansible role to deploy Seafile, an Open Source Cloud Storage. http://seafile.com/
A set of custom plugins for ansible (https://github.com/ansible/ansible) configuration management: multi-node deployment/orchestration, and remote task execution system. This project is not affiliated with the ansible project.
An ansible role to install and configure nullmailer, a sendmail/qmail/etc replacement MTA for hosts which relay to a fixed set of smart relays. http://untroubled.org/nullmailer/
ansible role for mysql
This ansible role manages installation and configuration of nginx. It can both configure general options, as well as virtual hosts. This role is a fork of https://github.com/bennojoy/nginx and implements a different API for configuring locations within a server.
Functional roles for ansible configuration management
Run-Your-Own Firefox Sync Server: https://github.com/mozilla-services/syncserver
Open VPN user defined scripting