Monitoring Plugins

A collection of monitoring plugins for Nagios/Icinga and compatible monitoring systems. Most plugins require one of the Monitoring::Plugin, Nagios::Plugin, 'Monitoring::Nagios::Plugin` perl modules and will pick the first one available.

The plugins have been written at Amadeus Germany GmbH but are fairly generic.

Plugins

check_memory_solaris

Checks free memory on Solaris. Assumes perl from CSW.

check_nightly_reboot

Checks if the machine is scheduled for a nightly reboot. This plugins requires some further configuration, please take a look at its documentation. Requires systemd.

check_systemd_units

Checks that no systemd units are in failed state.

Requires systemd.

check_zfs

Checks remaining space and status of zpools.

check_ntp_report_stats

Checks reachability of an NTP server. This is like the common check_ntp plugin but provides more performance data.

check_yaml

Check a key to have a certain value in a yaml file. Requires the YAML::Syck perl module. Requires LWP::Simple and File::Slurp modules if loading URLs or files respective.

Example to test for the status of the last puppet run:

$ check_yaml -i /var/lib/puppet/state/last_run_summary.yaml -k resources -k failed -e 0

check_mounts

Check for mounted filesystems/mountpoints which are not expected.

check_bacula_age

Check the status of the last job for a bacula client.

check_bacula_server

Check if the last job for any client has failed on a bacula server

check_nfsmounts_perfdata

Check whether there are stale NFS mounts on the host.

check_log_seen_today

Check that matching log entries have been seen today.

check_dkim

Check DKIM DNS records for presence, type and public key. Requires the Mail::DKIM perl module.

check_puppet_agent

Check that puppet agent is not disabled. Optionally requires the JSON::MaybeXS and File::Slurp modules, if the message from the lockfile is to be parsed.

check_atlassian

Check time until license expiration of Atlassian tools. Requires the LWP::Simple (libwww-perl) and HTML::Parser perl modules

check_http_health

Check the health of a HTTP endpoint with HAProxy behaviour (200 -> OK, 500 -> CRITICAL, rest -> UNKNOWN) Requires the LWP::UserAgent perl module.

check_apparmor

Check status of AppArmor on the machine.

check_needrestart

Check if daemon have to be restarted after a library upgrade.

Requires the needrestart package.

Note: From needrestart version 2.1 and upwards you can use its native nagios plugin mode (pass needrestart -p)

check_imap_mailbox

Check access to an IMAP mailbox. Requires the Timer::HiRes and Mail::IMAPClient perl modules.

This plugin is similar to the check_imap_receive plugin, but:

• it provides performance data
• it is capable of loading options from files, to prevent leaking of credentials via the process table

check_atlassian_plugins

Check all commercial plugins on the given instance and warn about the ones about to expire. Tested with Bitbucket, Confluence and Jira (other Atlassian product using UPM may work but are untested). Requires the Date::Calc, JSON::XS and LWP::UserAgent perl modules.

License

• Default: MIT
• check_memory_solaris: GPL-2.0+
• check_nfsmounts_perfdata: GPL-3.0+
• check_apparmor: GPL-2.0

For the authorative information look at the plugin source itself.

Note

check_bacula has been renamed to check_bacula_age to avoid clashes with a plugin shipped by Debian stretch.