Check_MK version 2.2.0p11 CRE
Ubuntu 22.04
Has anyone used this YUM plugin from the CheckMK Exchange?
Checkmk Exchange
I have installed as per the guide
I am unsure if I am missing a local plugin that needs to be pushed to the agents as is done with the APT plugin (mk_apt)
I cannot locate any such plugin within the Agent Plugins section of Checkmk.
Many thanks
David
I think I might have stumbled upon the plugin here
checkmk-agent-plugin-yum/agents/plugins at master · HenriWahl/checkmk-agent-plugin-yum · GitHub
However I’m still not convinced it is installed correctly as I do not see the Plugin within the UI and it is also not listed in Service Monitoring rules along with the APT Updates.
I do find it by searching from the main menu however
mkp list shows it is installed and active
Name Version Title Author Req. Version Until Version Files State
---- ------- ---------------- ---------- ------------ ------------- ----- -----------------------------
yum 2.4.3 YUM Update Check Henri Wahl 2.0.0 None 7 Enabled (active on this site)
I have the rule in place
# Actions Conditions Value Description
0 Move this entry
Host tag: Operating System is Red Hat Enterprise Linux
State when a reboot is required: WARN
State when normal updates are available: WARN
State when security updates are available: CRIT
Max Time since last last run update (Default 60 Days): 30 days
Change State based on last run update (default OK): OK
YUM update checks
I have pushed the plugin to the RedHat hosts and it is found
CPU load 15 min load: 0.29, 15 min load per core: 0.05 (6 cores)
CPU utilization Total CPU: 5.74%
Check_MK Agent Version: 2.2.0p11, OS: linux, Agent plugins: 1, Local checks: 1
Disk IO SUMMARY Read: 0.00 B/s, Write: 709 kB/s, Latency: 780 microseconds
So I restarted OMD and it’s now working 
Hi,
I have the same problem
I installed, enable the yum mkp
I declared a rule in Service Monitoring rules
I restarted OMD et rescan the host but nothing appears
Do you have a solution ?
Regards
I presume you have pushed out the plugin mk_yum to the hosts?
Hi ride165 thank you for reply
I just applied Changes and create a Rule in Setup > Rule search > search update > Enforcing service discovery > YUM Updates
I can see YUM check in service discovery oh hosts but all sensors are in PENDING mode
When you said “pushed out the plugin” do you mean apply Changes ?
Best regards
Unless you are using the Enterprise version which has the bakery you need to put the mk_yum file that forms part of the check into the local plugin folder on the hosts.
For instance I used Ansible to put the file into the /usr/lib/check_mk_agent/plugins/ folder and set the permissions.
- name: Install mk_yum plugin
ansible.builtin.copy:
src: mk_yum
dest: /usr/lib/check_mk_agent/plugins/mk_yum
owner: root
group: root
mode: '0755'
when: ansible_facts['os_family'] == "RedHat"
Hi ride165
Thank you for you help
I installed the yum mkp on Raw Edition :
OMD[monitoring]:~$ mkp show yum
Name: yum
Version: 2.4.3
Packaged on Checkmk Version: 2.0.0p38
Required Checkmk Version: 2.0.0
Valid until Checkmk version: No version limitation
Title: YUM Update Check
Author: Henri Wahl
Download-URL: https://github.com/HenriWahl/checkmk-agent-plugin-yum/releases
Files:
Agent based plugins (Checks, Inventory)
Agents
plugins/yum
Alert handlers
Binaries
Checks' man pages
yum
Legacy check plugins
yum
Documentation files
Legacy inventory plugins
Libraries
check_mk/base/cee/plugins/bakery/yum.py
python3/cmk/base/cee/plugins/bakery/yum.py
Localizations
SNMP MIBs
Notification scripts
PNP4Nagios templates (deprecated)
Legacy GUI extensions
plugins/wato/yum_cee.py
plugins/wato/yum_check_parameters.py
Description:
Checks for updates on RPM-based distributions via yum.
yum 2.4.3 YUM Update Check Henri Wahl 2.0.0 None 7 Enabled (active on this site)
But I cannot see mk_yum plugins when i go in : Linux > Setup > Agent
Do you think the plugin is correctly installed ?
Regards,
Yeah so if you see my original post this this is the issue I had. I managed to find the mk_yum file I needed on his Github page.
Just download that and then install it as I did onto the hosts you want to monitor
https://github.com/HenriWahl/checkmk-agent-plugin-yum/tree/master/agents/plugins
thank you very much, sorry I hadn’t reread the first few posts.
I put the plugin code in the specified folder, after an OMD restart the plugin status is functional on hosts.
The yum sensor works now
Best regards,
FYI I discovered that when you install plugins via mkp from the Checkmk Exchange the corresponding plugin can be found in the local dir of the server not with the built-in plugins that are in share/check_mk/agents/plugins/
OMD[monitoring]:~$ ll local/share/check_mk/agents/plugins/
total 12
-rwxr-xr-x 1 monitoring monitoring 2620 Jan 31 12:35 sslcertificates*
-rwxr-xr-x 1 monitoring monitoring 4758 Nov 17 14:58 yum*
Hello
In this version:
https://github.com/HenriWahl/checkmk-agent-plugin-yum/releases/download/latest/yum-3b4a1bbb.mkp
is a bug so I corrected it in line 119 in my file to:
if [ "$MAJOR_VERSION" -ge 8 ]; then
Further there are spaces in the yum.py files which prevents a execution in Checkmk.
@Henri: please correct it as well in your files.
Thanks
Regards
JP
Hello,
I installed the yum 2.5.0 version on MSE 2.2.0p23 on RHEL8
it simply doesn’t work: when the rule is activated, a WARNING with a conflict with a “yum check_group” is present and doesn’t allow the service/plugin to be detected. I removed all existing configuration, plugins etc… and reinstall from scratch : it doesn’t works
This plugin lacks a lot of documentation, and it’s a shame it’s so poorly maintained. A RHEL update check plugin should be maintained and documented by the official CheckMK teams.
I did a rollback in 2.4.4 which is functional
Regards,
Making the plugin visible (dirty method) is to symlink it:
ln -s /opt/omd/sites/YOURSITE/local/share/check_mk/agents/plugins/yum /opt/omd/versions/YOUR_CMK_VERSION.cre/share/check_mk/agents/plugins/yum
I needed this so i can (on my RAW-Edition) deploy agent updates and plugins to machines in the field via Ansible.
It only requires re-setting the symlink if you update a/the CMK-version.
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