Check openjdk-redhat-version

Overview

This plugin lets you track if Java (OpenJDK Red Hat Version) is End-of-Life (EOL). To compare against the current/installed version of Java, the check has to run on the Java server itself.

This check plugin alerts n days before or after the EOL date is reached. Optionally, it can also alert on available major, minor or patch releases (each independently).

Fact Sheet

Check Plugin Download

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

Check Interval Recommendation

Once a day

Can be called without parameters

Yes

Compiled for

Linux, Windows

Uses SQLite DBs

$TEMP/linuxfabrik-lib-version.db

Help

usage: openjdk-redhat-version [-h] [-V] [--always-ok] [--check-major]
                              [--check-minor] [--check-patch] [--insecure]
                              [--no-proxy] [--offset-eol OFFSET_EOL]
                              [--path PATH] [--timeout TIMEOUT]

Tracks if Java is EOL.

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 me when there is a new major release available,
                        even if the current version of my product is not EOL.
                        Example: Notify when I run v26 (not yet EOL) and v27
                        is available. Default: False
  --check-minor         Alert me when there is a new major.minor release
                        available, even if the current version of my product
                        is not EOL. Example: Notify when I run v26.2 (not yet
                        EOL) and v26.3 is available. Default: False
  --check-patch         Alert me when there is a new major.minor.patch release
                        available, even if the current version of my product
                        is not EOL. Example: Notify when I run v26.2.7 (not
                        yet EOL) and v26.2.8 is available. Default: False
  --insecure            This option explicitly allows to perform "insecure"
                        SSL connections. Default: False
  --no-proxy            Do not use a proxy. Default: False
  --offset-eol OFFSET_EOL
                        Alert me n days before ("-30") or after an EOL date
                        ("30" or "+30"). Default: -30 days
  --path PATH           Local path to your Java binary. Default: /usr/bin/java
  --timeout TIMEOUT     Network timeout in seconds. Default: 8 (seconds)

Usage Examples

./openjdk-redhat-version --offset-eol=-30

Output:

Java (Red Hat build of OpenJDK) v17.0.8 (EOL 2027-10-30 -30d, patch 17.0.9.0.9-1 available)

States

  • WARN if software is EOL

  • Optional: WARN when new major version is available

  • Optional: WARN when new minor version is available

  • Optional: WARN when new patch version is available

Perfdata / Metrics

Name

Type

Description

openjdk-redhat-version

Number

Installed Java (OpenJDK Red Hat Version) version as float. „20.0.2“ becomes „20.02“.

Credits, License