Plugin template?

andreas-doehler · April 12, 2020, 10:07am

As this script is more an classic active check then a checkmk check.
You cannot use the classic way with check parameters and then the checkmk check.

Take a look at the “check_tcp” checkmk/checks/check_tcp at 1.6.0 · Checkmk/checkmk · GitHub
“check_tcp” is only a checkmk plugin making the correct active check syntax for your monitoring core.
The monitoring core then is running your script.

And the options from WATO for this active check.

github.com

Checkmk/checkmk/blob/1.6.0/cmk/gui/plugins/wato/active_checks.py

#!/usr/bin/python
# -*- encoding: utf-8; py-indent-offset: 4 -*-
# +------------------------------------------------------------------+
# |             ____ _               _        __  __ _  __           |
# |            / ___| |__   ___  ___| | __   |  \/  | |/ /           |
# |           | |   | '_ \ / _ \/ __| |/ /   | |\/| | ' /            |
# |           | |___| | | |  __/ (__|   <    | |  | | . \            |
# |            \____|_| |_|\___|\___|_|\_\___|_|  |_|_|\_\           |
# |                                                                  |
# | Copyright Mathias Kettner 2014             mk@mathias-kettner.de |
# +------------------------------------------------------------------+
#
# This file is part of Check_MK.
# The official homepage is at http://mathias-kettner.de/check_mk.
#
# check_mk is free software;  you can redistribute it and/or modify it
# under the  terms of the  GNU General Public License  as published by
# the Free Software Foundation in version 2.  check_mk is  distributed
# in the hope that it will be useful, but WITHOUT ANY WARRANTY;  with-
# out even the implied warranty of  MERCHANTABILITY  or  FITNESS FOR A

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There the definition
def _valuespec_active_checks_tcp():
and

rulespec_registry.register(
    HostRulespec(
        group=RulespecGroupActiveChecks,
        match_type="all",
        name="active_checks:tcp",
        valuespec=_valuespec_active_checks_tcp,
    ))

If you write your own definition then it is the easiest way to take the complete import block from the start of this file