Hard and Soft Classes
Classes fall into hard (discovered) and soft (defined) types. This reference documents the hard classes that might be set by CFEngine, and soft classes used by CFEngine's default policy.
To see all of the classes defined on a particular host, run
$ cf-promises -v
as a privileged user. Note that some of the classes are set only if a trusted
link can be established with
cf-monitord, i.e. if both are
running with privilege, and the
/var/cfengine/state/env_data file is
You can use
obtain this list in a format suitable for other tools like
class per line).
You can also use the built-in
classesmatching function to get a list
of all the defined classes in a list, inside CFEngine policy itself.
- Operating System Classes
- Network Classes
- Unqualified Name of Host. CFEngine truncates it at the first dot.
www.research.company.comhave the same unqualified name –
- The IP address octets of any active interface (in the form
- User-defined Group of Hosts
- See also:
- Unqualified Name of Host. CFEngine truncates it at the first dot. Note:
- note ALL of these have a local and a GMT version. The GMT classes are consistent the world over, in case you need global change coordination.
- Day of the Week -
Monday, Tuesday, Wednesday,...GMT_Monday, GMT_Tuesday, GMT_Wednesday,...
- Hour of the Day in Current Time Zone -
Hr00, Hr01,... Hr23and
Hr0, Hr1,... Hr23
- Hour of the Day in GMT -
GMT_Hr00, GMT_Hr01, ...GMT_Hr23and
GMT_Hr0, GMT_Hr1, ...GMT_Hr23.
- Minutes of the Hour -
Min00, Min17,... Min45,...and
GMT_Min00, GMT_Min17,... GMT_Min45,...
- Five Minute Interval of the Hour -
Min00_05, Min05_10,... Min55_00and
GMT_Min00_05, GMT_Min05_10,... GMT_Min55_00. Note the second number indicates up to what minute the interval extends and does not include that minute.
- Quarter of the Hour -
Q1, Q2, Q3, Q4and
GMT_Q1, GMT_Q2, GMT_Q3, GMT_Q4
- An expression of the current quarter hour -
- Day of the Month -
Day1, Day2,... Day31and
GMT_Day1, GMT_Day2,... GMT_Day31
- Month -
January, February,... Decemberand
GMT_January, GMT_February,... GMT_December
- Year -
- Period of the Day -
Night, Morning, Afternoon, Eveningand
GMT_Night, GMT_Morning, GMT_Afternoon, GMT_Evening(six hour blocks starting at 00:00 hours).
- Lifecycle Index -
Lcycle_0, Lcycle_1, Lcycle_2and
GMT_Lcycle_0, GMT_Lcycle_1, GMT_Lcycle_2(the year number modulo 3, used in long term resource memory).
- See also:
The unqualified name of a particular host (e.g.,
www). If your system returns a fully qualified domain name for your host (e.g.,
www.iu.hio.no), CFEngine will also define a hard class for the fully qualified name, as well as the partially-qualified component names
The IP address octets of any active interface (in the form
ipv4_192_0_0_1<!-- /@w -->,
ipv4_192_0_0<!-- /@w -->,
ipv4_192_0<!-- /@w -->,
ipv4_192<!-- /@w -->), provided they are not excluded by a regular expression in the file
The names of the active interfaces (in the form
System status and entropy information reported by
On Solaris-10 systems, the zone name (in the form
zone_global, zone_foo, zone_baz).
The following classes can be set via
$ cf-agent -Dclass
$ cf-runagent -Dclass
to change the behavior of CFEngine without having to edit the policy.
Description: Disable a CFEngine Enterprise daemon component persistently.
DAEMON can be one of
This will stop the AGENT from starting automatically.
Description: Re-enable a previously disabled CFEngine Enterprise daemon component.
DAEMON can be one of