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Check graylog-version

Overview

Checks the installed Graylog 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.

Important Notes:

  • The check must run locally on the Graylog server because it queries the local package manager for the installed version.

Data Collection:

  • Determines the installed Graylog version from the package manager (yum on RHEL, dpkg on Debian)
  • Compares against the endoflife.date API to determine EOL status and available updates
  • Caches API responses locally for 24 hours to reduce external requests

Fact Sheet

Fact Value
Check Plugin Download https://github.com/Linuxfabrik/monitoring-plugins/tree/main/check-plugins/graylog-version
Nagios/Icinga Check Name check_graylog_version
Check Interval Recommendation Every day
Can be called without parameters Yes
Runs on Linux
Compiled for Windows No
Uses State File $TEMP/linuxfabrik-lib-version.db

Help

usage: graylog-version [-h] [-V] [--always-ok] [--check-major] [--check-minor]
                       [--check-patch] [--insecure] [--no-proxy]
                       [--offset-eol OFFSET_EOL] [--test TEST]
                       [--timeout TIMEOUT]

Checks the installed Graylog 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.
  --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
  --test TEST           For unit tests. Needs "path-to-stdout-file,path-to-
                        stderr-file,expected-retc".
  --timeout TIMEOUT     Network timeout in seconds. Default: 8 (seconds)

Usage Examples

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

Output:

Graylog v5.0.13 (EOL 2023-10-30 -30d [WARNING], major 6.0.4 available, minor 5.2.9 available)

States

  • OK if the installed version is not EOL and no update alerts are configured.
  • WARN if the installed version is EOL (considering --offset-eol, default: -30 days).
  • WARN if --check-major is set and a new major version is available.
  • WARN if --check-minor is set and a new minor version is available.
  • WARN if --check-patch is set and a new patch version is available.
  • UNKNOWN if Graylog is not found or the platform is not supported.
  • --always-ok suppresses all alerts and always returns OK.

Perfdata / Metrics

Name Type Description
graylog-version Number Installed Graylog version as float. For example, "5.0.13" becomes "5.013".

Credits, License