cf-isalive

Detect and alert when CFEngine is stuck

1. About

Script used to detect and alert when CFEngine is stuck or dead and not applying any promise for a while (MAX_SECOND_LATE)

2. Usage

Simply run the script. You'll only get output on failure, as illustrated below.

2.1. On a system where CFEngine is stuck

root@host:~# /etc/cron.hourly/cf-isalive
I'm late ! CFEngine did not run for 13770 seconds ! Check me !
Last /var/cfengine/promise_summary.log line:
1401544020,1401544080: Outcome of version Percolate Promises.cf 1.4 (agent-0):
    Promises observed to be kept 100%, Promises repaired 0%, Promises not
    repaired 0%
root@host:~# echo $?
1

2.2. On a system where CFEngine is in a good state

root@host:~# /etc/cron.hourly/cf-isalive
root@host:~# echo $?
0

3. Installation

Ideally you want to run this script hourly and get its output by email. It's easy to do on any debian-based system:

root@host:~# cp cf-isalive /etc/cron.hourly/cf-isalive
root@host:~# chmod +x /etc/cron.hourly/cf-isalive

4. Licensing

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, either version 3 of the License, or (at your option) any later version.

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, see http://www.gnu.org/licenses/.