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.

Please see the INSTALL file for prerequisites and build instructions.

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

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

bundle agent run
{
  reports:
    cfengine::
      "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 HACKING file.

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.