Fig
A package management tool, similar to Ivy/APT, but language agnostic, faster and works well with both executables and libraries.
linux windows osx open-source packaging ruby
FPM
Effing Package Managers (FPM) is a single tool that can generate rpm, deb, solaris, osx (pkg) and many other packages. It supports multiple inputs (directory, gem, egg, deb, etc) and can produce multiple outputs (rpm, deb, solaris, etc). It relieves the pain out of creating various kinds of packages.
linux osx open-source packaging ruby
Monit
An open source utility for managing and monitoring processes, programs, files, directories and filesystems
linux osx open-source monitoring process-mgmt c
Puppet
Puppet is a tool designed to manage the configuration of Unix-like and Microsoft Windows systems declaratively.
linux windows osx open-source config-mgmt ruby