Cfengine 3 example unit_measurements.html
#  Copyright (C) Cfengine AS

#  This file is part of Cfengine 3 - written and maintained by Cfengine AS.

#  This program is free software; you can redistribute it and/or modify it
#  under the terms of the GNU General Public License as published by the
#  Free Software Foundation; version 3.

#  This program is distributed in the hope that it will be useful,
#  but WITHOUT ANY WARRANTY; without even the implied warranty of
#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#  GNU General Public License for more details.

# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA

# To the extent this program is licensed as part of the Enterprise
# versions of Cfengine, the applicable Commerical Open Source License
# (COSL) may apply to this file if you as a licensee so wish it. See
# included file COSL.txt.


#######################################################
#
# Test file:
#
# First line
# Blonk blonk bnklkygsuilnm
#
#######################################################

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

#######################################################

body monitor control
{
forgetrate => "0.7";
histograms => "true";
}

#######################################################

bundle agent report
{
reports:

 cfengine_3::

   "
   Free memory read at $(mon.av_free_memory_watch)
   cf_monitord read $(mon.value_monitor_self_watch)   
   ";
}

#######################################################

bundle monitor watch
{
measurements:

  # Test 1 - extract string matching

  "/home/mark/tmp/testmeasure"

      handle => "blonk_watch",
      stream_type => "file",
      data_type => "string",
      history_type => "weekly",
      units => "blonks",
      match_value => find_blonks,
      action => sample_min("10");

  # Test 2 - follow a special process over time
  # using cfengine's process cache to avoid resampling

   "/var/cfengine/state/cf_rootprocs"

      handle => "monitor_self_watch",
      stream_type => "file",
      data_type => "int",
      history_type => "static",
      units => "kB",
      match_value => proc_value(".*cf-monitord.*",
                                "root\s+[0-9.]+\s+[0-9.]+\s+[0-9.]+\s+[0-9.]+\s+([0-9]+).*");

  # Test 3, discover disk device information

  "/bin/df"

      handle => "free_disk_watch",
      stream_type => "pipe",
      data_type => "slist",
      history_type => "static",
      units => "device",
      match_value => file_system;
      # Update this as often as possible

  # Test 4

   "/tmp/file"

         handle => "line_counter",
    stream_type => "file",
      data_type => "counter",
    match_value => scanlines("MYLINE.*"),
   history_type => "log";

}

##########################################################

body match_value scanlines(x)
{
select_line_matching => "^$(x)$";
}

##########################################################

body action sample_min(x)
{
ifelapsed => "$(x)";
expireafter => "$(x)";
}

##########################################################

body match_value find_blonks
{
select_line_number => "2";
extraction_regex => "Blonk blonk ([blonk]+).*";
}

##########################################################

body match_value free_memory # not willy!
{
select_line_matching => "MemFree:.*";
extraction_regex => "MemFree:\s+([0-9]+).*";
}

##########################################################

body match_value proc_value(x,y)
{
select_line_matching => "$(x)";
extraction_regex => "$(y)";
}

##########################################################

body match_value file_system
{
select_line_matching => "/.*";
extraction_regex => "(.*)";
}