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5152fd778c
...
b2524c8799
@ -5,7 +5,6 @@
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import argparse
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import dataclasses
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import logging
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import re
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import sys
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from urllib.parse import urljoin
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from typing import Optional
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@ -22,12 +21,11 @@ class Entities(nagiosplugin.Resource):
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url: str
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token: str
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device_class: str
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numeric: bool
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min: float
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max: float
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filters: list[str]
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attribute: Optional[str]
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friendly_name: bool
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min: Optional[float] = None
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max: Optional[float] = None
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def hass_get(self, endpoint: str) -> requests.Response:
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headers = {
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@ -56,17 +54,10 @@ class Entities(nagiosplugin.Resource):
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state["attributes"].get(k) == v for k, v in self.filters
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):
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if self.attribute is not None:
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value = state["attributes"].get(
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self.attribute, -1 if self.numeric else "attribute missing"
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)
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value = state["attributes"].get(self.attribute, -1)
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uom = None
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else:
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if self.numeric:
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value = (
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float(state["state"]) if state["state"].isnumeric() else -1
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)
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else:
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value = state["state"]
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value = float(state["state"]) if state["state"].isnumeric() else -1
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uom = state["attributes"].get("unit_of_measurement")
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if self.friendly_name:
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@ -90,46 +81,6 @@ class Entities(nagiosplugin.Resource):
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)
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class RegexContext(nagiosplugin.Context):
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def __init__(
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self,
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name: str,
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ok: str = None,
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warning: str = None,
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critical: str = None,
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fmt_metric=None,
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result_cls=nagiosplugin.Result,
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):
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super().__init__(name, fmt_metric=fmt_metric, result_cls=result_cls)
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# '.^' should match nothing
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self.ok = re.compile(ok or ".^")
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self.warning = re.compile(warning or ".^")
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self.critical = re.compile(critical or ".^")
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def fmt_reason(self, regex: re.Pattern, metric: nagiosplugin.Metric) -> str:
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return f"{metric.name} matched regex '{regex.pattern}' ({metric.value})"
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def evaluate(self, metric: nagiosplugin.Metric, resource):
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if self.critical.match(metric.value):
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return self.result_cls(
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nagiosplugin.Critical, self.fmt_reason(self.critical, metric), metric
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)
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elif self.warning.match(metric.value):
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return self.result_cls(
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nagiosplugin.Warn, self.fmt_reason(self.warning, metric), metric
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)
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elif self.ok.match(metric.value):
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return self.result_cls(
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nagiosplugin.Ok, self.fmt_reason(self.ok, metric), metric
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)
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else:
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return self.result_cls(
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nagiosplugin.Unknown,
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f"{metric.name} did not match any defined patterns ({metric.value})",
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metric,
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)
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def key_value(arg: str):
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k, _, v = arg.partition("=")
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return k, v
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@ -151,11 +102,19 @@ class Icinga2ConfAction(argparse.Action):
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help=help,
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)
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def _format_actions(self, param_prefix: str, parser: argparse.ArgumentParser):
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for action in parser._actions:
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if action.dest in [self.dest, "help", "version"] or isinstance(
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action, argparse._SubParsersAction
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def __call__(
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self, parser: argparse.ArgumentParser, namespace, values, option_string=None
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):
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filename = Path(__file__).absolute()
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command_name = filename.stem.removeprefix("check_")
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# FIXME: assumes that script will be in a subdirectory of PluginContribDir
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command_path = filename.relative_to(filename.parents[1])
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print(f'object CheckCommand "{command_name}" {{')
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print(f' command = [ PluginContribDir + "/{command_path}" ]')
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print(" arguments = {")
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for action in parser._actions:
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if action.dest in [self.dest, "help", "version"]:
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continue
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arg_str = action.option_strings[-1]
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@ -173,46 +132,14 @@ class Icinga2ConfAction(argparse.Action):
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argparse._AppendConstAction,
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),
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):
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print(f' set_if = "${param_prefix}_{icinga2_var}$"')
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print(f' set_if = "${command_name}_{icinga2_var}$"')
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else:
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print(f' value = "${param_prefix}_{icinga2_var}$"')
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print(f' value = "${command_name}_{icinga2_var}$"')
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print(f' description = "{action.help}"')
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print(" }")
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def __call__(
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self, parser: argparse.ArgumentParser, namespace, values, option_string=None
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):
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filename = Path(__file__).absolute()
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command_name = filename.stem.removeprefix("check_")
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# FIXME: assumes that script will be in a subdirectory of PluginContribDir
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command_path = filename.relative_to(filename.parents[1])
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if parser._subparsers:
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# TODO: this seems a bit more hacky than it needs to be
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choices = parser._subparsers._group_actions[0].choices
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for subname, subparser in choices.items():
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print(f'object CheckCommand "{command_name}" {{')
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print(
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f' command = [ PluginContribDir + "/{command_path}", "{subname}" ]'
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)
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print(" arguments = {")
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self._format_actions(command_name, parser)
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self._format_actions(f"{command_name}_{subname}", subparser)
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print(" }\n}")
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else:
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print(f'object CheckCommand "{command_name}" {{')
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print(f' command = [ PluginContribDir + "/{command_path}" ]')
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print(" arguments = {")
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self._format_actions(command_name, parser)
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print(" }\n}")
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parser.exit()
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@ -220,7 +147,6 @@ class Icinga2ConfAction(argparse.Action):
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def main():
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argp = argparse.ArgumentParser(description=__doc__)
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argp.add_argument("--version", action="version", version="0.2.0")
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argp.add_argument("-v", "--verbose", action="count", default=0)
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argp.add_argument("--make-icinga-conf", action=Icinga2ConfAction)
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@ -235,21 +161,41 @@ def main():
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"-u", "--url", required=True, type=str, help="URL for Home Assistant"
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)
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shared_parser = argparse.ArgumentParser(add_help=False)
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common_args = shared_parser.add_argument_group(
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"Common Arguments", "Arguments shared between metric types"
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)
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common_args.add_argument(
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argp.add_argument(
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"-d",
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"--device-class",
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type=str,
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required=True,
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help="device class of entities to monitor",
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)
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common_args.add_argument(
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argp.add_argument(
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"-w",
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"--warning",
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metavar="RANGE",
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required=True,
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help="return warning if value is outside %(metavar)s",
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)
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argp.add_argument(
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"-c",
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"--critical",
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metavar="RANGE",
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required=True,
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help="return critical if value is outside %(metavar)s",
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)
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argp.add_argument(
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"--min",
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type=float,
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help="min for performance data",
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)
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argp.add_argument(
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"--max",
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type=float,
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help="max for performance data",
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)
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argp.add_argument(
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"-a", "--attribute", type=str, help="check attribute instead of value"
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)
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common_args.add_argument(
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argp.add_argument(
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"-f",
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"--filter",
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type=key_value,
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@ -257,96 +203,27 @@ def main():
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nargs="*",
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help="filter by 'attribute=value' (may be specified multiple times)",
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)
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common_args.add_argument(
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argp.add_argument(
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"--friendly",
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action="store_true",
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help="use friendly name, when available",
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)
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subparsers = argp.add_subparsers(
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title="Query type", required=True, dest="subparser_name"
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)
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scalar_parser = subparsers.add_parser(
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"scalar", help="Numeric metrics", parents=[shared_parser]
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)
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scalar_parser.add_argument(
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"-w",
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"--warning",
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metavar="RANGE",
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required=True,
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help="return warning if value is outside %(metavar)s",
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)
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scalar_parser.add_argument(
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"-c",
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"--critical",
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metavar="RANGE",
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required=True,
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help="return critical if value is outside %(metavar)s",
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)
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scalar_parser.add_argument(
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"--min",
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type=float,
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help="min for performance data",
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)
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scalar_parser.add_argument(
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"--max",
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type=float,
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help="max for performance data",
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)
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text_parser = subparsers.add_parser(
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"text", help="Textual metrics", parents=[shared_parser]
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)
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text_parser.add_argument(
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"-o",
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"--ok",
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metavar="REGEX",
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help="return ok if value matches %(metavar)s",
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)
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text_parser.add_argument(
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"-w",
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"--warning",
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metavar="REGEX",
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help="return warning if value matches %(metavar)s",
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)
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text_parser.add_argument(
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"-c",
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"--critical",
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metavar="REGEX",
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help="return critical if value matches %(metavar)s",
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)
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args = argp.parse_args()
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if args.subparser_name == "scalar":
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check = nagiosplugin.Check(
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Entities(
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url=args.url,
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token=args.token,
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device_class=args.device_class,
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numeric=True,
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min=args.min,
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max=args.max,
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filters=args.filter,
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attribute=args.attribute,
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friendly_name=args.friendly,
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args.url,
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args.token,
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args.device_class,
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args.min,
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args.max,
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args.filter,
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args.attribute,
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args.friendly,
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),
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nagiosplugin.ScalarContext(args.device_class, args.warning, args.critical),
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)
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elif args.subparser_name == "text":
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check = nagiosplugin.Check(
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Entities(
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url=args.url,
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token=args.token,
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device_class=args.device_class,
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numeric=False,
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filters=args.filter,
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attribute=args.attribute,
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friendly_name=args.friendly,
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),
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RegexContext(args.device_class, args.ok, args.warning, args.critical),
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)
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check.main(args.verbose)
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