patchwork

Patchwork is a mid-level library of Unix system administration primitives such as "install package" or "create user account", interrogative functionality for introspecting system state, and other commonly useful functions built on top of the Fabric <http://fabfile.org>_ library.

Specifically:

• Primary API calls strive to be idempotent: they may be called multiple times in a row without unwanted changes piling up or causing errors.

• Patchwork is just an API: it has no concept of "recipes", "manifests", "classes", "roles" or other high level organizational units. This is left up to the user or wrapping libraries.

  • This is one way Patchwork differs from larger configuration management frameworks like Chef <http://opscode.com/chef/>_ or Puppet <http://puppetlabs.com>_. Patchwork is closest in nature to those tools' "resources."

• It is implemented in shell calls, typically sent over SSH from a local workstation.

  • However, where possible, its functions expect a baseline Invoke ~invoke.context.Context object and can thus run locally or remotely, depending on the specific context supplied by the caller.