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Language grade: C

CFEngine 3

CFEngine 3 is a popular open source configuration management system. Its primary function is to provide automated configuration and maintenance of large-scale computer systems.


To install from source please see the INSTALL file for prerequisites and build instructions.


As per the LICENSE file, CFEngine Community is licensed under the GNU General Public License, version 3.

All the files in this repository are licensed under GNU GPL version 3, unless stated otherwise in the copyright notice inside the particular file.

Example Usage

Hello World

The following code demonstrates simple CFEngine output through a reports promise.

body common control
  bundlesequence => { "run" };

bundle agent run
      "Hello, world";

The following policy code may be executed with cf-agent (the main CFEngine binary) as follows.

$ cf-agent/cf-agent hello.cf
R: Hello, world


Please see the CONTRIBUTING.md file.

Relationship to CFEngine 2

CFEngine 3 is not a drop-in upgrade for CFEngine 2 installations. It is a significantly more powerful version, but it is incompatible with the CFEngine 2 policy language.

The server part of CFEngine 3 supports the network protocol of CFEngine 2, so you may upgrade your installation gradually.


CFEngine was originally created by Mark Burgess with many contributions from around the world. Thanks everyone!

CFEngine is sponsored by Northern.tech AS