DEV Community: Davide Madrisan

Nagios Plugins for Linux v31

Davide Madrisan — Wed, 31 Aug 2022 19:56:45 +0000

What's new in version v31 "Counter-intuitive"

Fixes

Libraries
- lib/container_docker_memory: fix an issue reported by clang-analyzer.
- Make sure sysfs is mounted in the plugins that require it.

Enhancements / Changes

Plugin check_filecount
- New plugin check_filecount that returns the number of files found in one or more directories.
Plugin check_memory
- check_memory: support new units kiB/MiB/GiB. Feature asked by mdicss. See discussion #120.
contrib/icinga2/CheckCommands.conf
- Contribution from Lorenz RincewindsHat: add icinga2 command configurations.
Build
- configure: ensure libprocps is v4.0.0 or better if the experimental option --enable-libprocps is passed to configure.
Test framework
- Add some unit tests for lib/xstrton.
- New unit tests tslibfiles_{filecount,hiddenfile,size}.
Package creation
- Add Linux Alpine 3.16 and remove version 3.13.
- Do not package experimental plugins in the rpm nagios-plugins-linux-all.
- Add Fedora 36 and drop Fedora 33 support.
- CentOS 8 died a premature death at the end of 2021. Add packages for CentOS Stream 8 and 9.
GitHub Workflows
- Build the Nagios Plugins Linux on the LTS Ubuntu versions only. The version 21 seems dead.
- Add build tests for all the supported oses.
- Update the os versions used in tests.
- CentOS 8 died a premature death at the end of 2021. Remove it from the list of test oses.
- Add CodeQL analysis

Nagios Plugins for Linux v30

Davide Madrisan — Sun, 20 Feb 2022 21:18:44 +0000

This open-source project "Nagios Plugins for Linux" provides several binary plugins for monitoring (physical and virtual) Linux hosts with Nagios and Nagios-compatible monitoring systems like Icinga and Naemon.

What's new in this release

FIXES

Plugin check_pressure

Display values per second regardless of the delay, and ensure the delta of "some" is calculated correctly.
Thanks to Christian Bryn (epleterte) for reporting and fixing a typo in the git clone command.

Package creation

Fix Debian packages creation.

ENHANCEMENTS / CHANGES

Libraries

lib/netinfo: fix a LGTM static analyzer alert.

Packages

Release updates:

Add Debian 11 and drop Debian 8,
Add Fedora 35 and drop Fedora 32,
Add Linux Alpine 3.15 and drop version 3.12.

HadCRUT5 visualization

Davide Madrisan — Thu, 08 Apr 2021 21:19:51 +0000

HadCRUT5 is a gridded dataset of global historical surface temperature anomalies relative to a 1961-1990 reference period. The dataset is a collaborative product of the Met Office Hadley Centre and the Climatic Research Unit at the University of East Anglia.

This project is made of a couple Python scripts: hadcrut5-plot.py and hadcrut5-bars.py. They parse the HadCRUT5 data files and produce a few different plots:

line plot
line plot using the N-year means data (smoother version)
bar plot

Each plot can be generated on different periods:

1961-1990 (the default one)
1850-1900
1880-1920

The scripts require the Python libraries: Matplotlib, netCDF4, NumPy, and Requests.

Project code available at: GitHub

Nagios Plugins for Linux v28

Davide Madrisan — Sat, 13 Feb 2021 23:06:10 +0000

A set of Ansi-C opensource Nagios plugins for monitoring Linux boxes:

check_clock
check_cpu
check_cpufreq
check_cswch
check_docker
check_fc
check_ifmountfs
check_intr
check_iowait
check_load
check_memory
check_multipath
check_nbprocs
check_network
check_paging
check_pressure
check_podman
check_readonlyfs
check_swap
check_tcpcount
check_temperature
check_uptime
check_users

These plugins have been reported to also work with Icinga and Icinga2.

Project home page at GitHub.

The full documentation is available online in the GitHub wiki page.

A simple Mattermost notifier written in Go

Davide Madrisan — Fri, 12 Feb 2021 23:40:02 +0000

I’m very proud to announce the immediate release of go-mattermost-notify version 1.0.0, a simple Mattermost notifier written in Go.

You can post text or markdown-formatted messages to a Mattermost channel (via its ID) or send direct messages to a user.

This program makes use of the Go libraries http and url for interacting with a Mattermost server (via its REST API v4 interface) and Cobra coupled with Viper to implement the CLI interface.

Project code available at GitHub.