Check rhel-version

Overview

Checks the installed Red Hat Enterprise Linux version against the endoflife.date API and alerts if the version is end-of-life or if newer releases are available.

Important Notes:

Data Collection:

  • Reads the installed version from the local OS distribution facts

  • Queries the endoflife.date API (https://endoflife.date/api/rhel.json) and caches the result in a local SQLite database

  • Must run on the RHEL server itself

Fact Sheet

Fact

Value

Check Plugin Download

https://github.com/Linuxfabrik/monitoring-plugins/tree/main/check-plugins/rhel-version

Nagios/Icinga Check Name

check_rhel_version

Check Interval Recommendation

Every day

Can be called without parameters

Yes

Runs on

Cross-platform

Compiled for Windows

No

Uses SQLite DBs

$TEMP/linuxfabrik-lib-version.db

Help

usage: rhel-version [-h] [-V] [--always-ok] [--check-major] [--check-minor]
                    [--check-patch] [--extended-support] [--insecure]
                    [--no-proxy] [--offset-eol OFFSET_EOL] [--timeout TIMEOUT]

Checks the installed Red Hat Enterprise Linux version against the
endoflife.date API and alerts if the version is end-of-life or if newer major,
minor, or patch releases are available. By default, alerts 30 days before the
official EOL date. The offset is configurable.

options:
  -h, --help            show this help message and exit
  -V, --version         show program's version number and exit
  --always-ok           Always returns OK.
  --check-major         Alert when a new major release is available, even if
                        the current version is not yet EOL. Example: running
                        v26 (not yet EOL) and v27 is available.
  --check-minor         Alert when a new major.minor release is available,
                        even if the current version is not yet EOL. Example:
                        running v26.2 (not yet EOL) and v26.3 is available.
  --check-patch         Alert when a new major.minor.patch release is
                        available, even if the current version is not yet EOL.
                        Example: running v26.2.7 (not yet EOL) and v26.2.8 is
                        available.
  --extended-support    Instead of "Maintenance Support" EOL (default), check
                        for "Extended Life Cycle Support" EOL.
  --insecure            This option explicitly allows insecure SSL
                        connections.
  --no-proxy            Do not use a proxy.
  --offset-eol OFFSET_EOL
                        Alert n days before ("-30") or after an EOL date ("30"
                        or "+30"). Default: -30 days
  --timeout TIMEOUT     Network timeout in seconds. Default: 8 (seconds)

Usage Examples

./rhel-version --offset-eol=-30

Output:

Rocky Linux 8.9 (Green Obsidian) (full support ended on 2024-05-31; EOL 2029-05-31 -30d, major 9.5 available, minor 8.10 available)

States

  • WARN if the installed version is EOL.

  • Optional: WARN when a new major version is available.

  • Optional: WARN when a new minor version is available.

  • Optional: WARN when a new patch version is available.

  • --always-ok suppresses all alerts and always returns OK.

Perfdata / Metrics

Name

Type

Description

rhel-version

Number

Installed RHEL version as float. „8.7“ becomes „87“.

Credits, License