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.

What's new in this release

FIXES

Plugin check_temperature

• Do not display thermal ranges if -t|--thermal_zone in not set at command-line.

ENHANCEMENTS

Plugin check_temperature

• Improve the output message by adding the thermal device when available;
• List also the devices that display a temperature of 0°C to be more consistent with the tool 'sensors';
• Improve the help message;
• New command-line option -l|--list for displyaing the all the thermal sensors reported by the kernel.

Package creation

• Update the list of supported platforms by adding Alpine 3.13 and 3.14 and Fedora 34;
• Several improvements to the Debian packaging (thanks to Vincent Olivert-Riera for the PR);
• Build Debian multi-packages instead of a single package providing all binary plugins. This will permit these plugins to cohexist with the Nagios native ones.

Test framework

• Switch to the latest stable OSes in GitHub workflow.

Documentation

• Update the documentation for linking against procps-ng newlib;
• Thanks to Christian Bryn (epleterte) for reporting and fixing a typo in the git clone command.

What's new in this release

FIXES

A few Clang and GCC warnings have been fixed.

ENHANCEMENTS

Plugin check_pressure

New plugin check_pressure that reports the Linux Pressure Stall Information (PSI) exported by Linux kernels 4.20+ (in the /proc/pressure/ folder).

check_pressure --cpu      return the cpu pressure metrics
check_pressure --io       return the io (block layer/filesystems) pressure metrics
check_pressure --memory   return the memory pressure metrics

Build system

Here are some notable news:

• Integrate Nagios Plugins for Linux with GitHub Workflow tests;
• Add Linux Alpine and Ubuntu to the list of supported and automatically tested Linux distributions;
• Update the list of supported platforms by adding Alpine 3.12 and Fedora 33;
• Make the packages/docker-shell-helpers folder a git submodule.

Package creation

Create also the native package for Alpine 3.12.