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Implement Icinga 2 dummy config generator

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refs #132
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Alexander A. Klimov 2018-02-09 13:27:52 +01:00
parent 6c1e74e5f7
commit bd5b5a5d0d
2 changed files with 214 additions and 0 deletions
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204
application/clicommands/Icinga2Command.php Normal file
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@ -0,0 +1,204 @@
<?php
/* Icinga Web 2 | (c) 2018 Icinga Development Team | GPLv2+ */
namespace Icinga\Module\Graphite\Clicommands;
use DateTime;
use Icinga\Cli\Command;
use Icinga\Module\Graphite\Graphing\GraphingTrait;
use Icinga\Module\Graphite\Graphing\Template;
use Icinga\Module\Graphite\Util\MacroTemplate;
use Icinga\Module\Graphite\Web\Widget\Graphs;
class Icinga2Command extends Command
{
use GraphingTrait;
/**
* Generate Icinga 2 host and service config based on the present graph templates
*
* The generated (fictive) monitored objects' checks yield random perfdata to be
* written to Graphite as expected by the present graph templates of this module.
* The generated Icinga 2 config can be used to simulate graphs generated based
* on the graph templates.
*
* icingacli graphite icinga2 config
*/
public function configAction()
{
$icinga2CfgObjPrefix = 'IW2_graphite_simulator_' . (new DateTime())->format('YmdHis');
$obscuredCheckCommandCustomVar = Graphs::getObscuredCheckCommandCustomVar();
$result = [
<<<EOT
object CheckCommand "$icinga2CfgObjPrefix" {
command = [ "/usr/bin/printf" ]
arguments = {
"%s" = {{
var res = " |"
for (label => max in macro("\$$icinga2CfgObjPrefix\$")) {
res += " '" + label + "'=" + (random() % max) + ";" + (max * 0.8) + ";" + (max * 0.9) + ";0;" + max
}
res
}}
}
}
EOT
,
<<<EOT
object HostGroup "$icinga2CfgObjPrefix" {
assign where host.vars.$icinga2CfgObjPrefix
}
EOT
,
<<<EOT
object ServiceGroup "$icinga2CfgObjPrefix" {
assign where service.vars.$icinga2CfgObjPrefix
}
EOT
,
<<<EOT
object Host "{$icinga2CfgObjPrefix}_doesntmatchanycheckcommand" {
check_command = "$icinga2CfgObjPrefix"
check_interval = 30s
vars.$obscuredCheckCommandCustomVar = "doesntmatchanycheckcommand"
vars.$icinga2CfgObjPrefix = {
"dummy1" = 100
"dummy2" = 100
"dummy3" = 100
"dummy4" = 100
}
}
EOT
,
<<<EOT
apply Service "{$icinga2CfgObjPrefix}_doesntmatchanycheckcommand" {
assign where host.vars.$icinga2CfgObjPrefix
check_command = "$icinga2CfgObjPrefix"
check_interval = 30s
vars.$obscuredCheckCommandCustomVar = "doesntmatchanycheckcommand"
vars.$icinga2CfgObjPrefix = {
"dummy1" = 100
"dummy2" = 100
"dummy3" = 100
"dummy4" = 100
}
}
EOT
];
foreach (static::getAllTemplates()->getAllTemplates() as $checkCommand => $templates) {
$perfdata = [];
foreach ($templates as $templateName => $template) {
/** @var Template $template */
$urlParams = $template->getUrlParams();
switch (isset($urlParams['yUnitSystem']) ? $urlParams['yUnitSystem']->resolve([]) : 'none') {
case 'si':
case 'binary':
$max = 42000000;
break;
case 'sec':
case 'msec':
$max = 82800;
break;
default:
$max = 100;
}
foreach ($template->getCurves() as $curveName => $curve) {
/** @var MacroTemplate $metricFilter */
$metricFilter = $curve[0];
$macros = array_flip($metricFilter->getMacros());
$service = isset($macros['service_name_template']);
foreach ($macros as & $macro) {
$macro = ['dummy1', 'dummy2', 'dummy3', 'dummy4'];
}
$macros['host_name_template'] = [''];
$macros['service_name_template'] = [''];
foreach ($this->cartesianProduct($macros) as $macroValues) {
if (preg_match(
'/\A\.[^.]+\.(.+)\.[^.]+\z/',
$metricFilter->resolve($macroValues),
$match
)) {
$perfdata[$match[1]] = $max;
}
}
}
}
$monObj = $service
? [
"apply Service \"{$icinga2CfgObjPrefix}_{$checkCommand}\" {",
" assign where host.vars.$icinga2CfgObjPrefix"
]
: ["object Host \"{$icinga2CfgObjPrefix}_{$checkCommand}\" {"];
$monObj[] = " check_command = \"$icinga2CfgObjPrefix\"";
$monObj[] = ' check_interval = 30s';
$monObj[] = " vars.$obscuredCheckCommandCustomVar = \"$checkCommand\"";
$monObj[] = " vars.$icinga2CfgObjPrefix = {";
foreach ($perfdata as $label => $max) {
$monObj[] = " \"$label\" = $max";
}
$monObj[] = ' }';
$monObj[] = '}';
$result[] = implode("\n", $monObj);
}
echo implode("\n\n", $result) . "\n";
}
/**
* Generate the cartesian product of the given array
*
* [
* 'a' => ['b', 'c'],
* 'd' => ['e', 'f']
* ]
*
* [
* ['a' => 'b', 'd' => 'e'],
* ['a' => 'b', 'd' => 'f'],
* ['a' => 'c', 'd' => 'e'],
* ['a' => 'c', 'd' => 'f']
* ]
*
* @param array[] $input
*
* @return array[]
*/
protected function cartesianProduct(array & $input)
{
$results = [[]];
foreach ($input as $key => & $values) {
$nextStep = [];
foreach ($results as & $result) {
foreach ($values as $value) {
$nextStep[] = array_merge($result, [$key => $value]);
}
}
unset($result);
$results = & $nextStep;
unset($nextStep);
}
unset($values);
return $results;
}
}

10
library/Graphite/Graphing/Templates.php
View file

@ -305,4 +305,14 @@ class Templates
{
return isset($this->templates[$checkCommand]) ? $this->templates[$checkCommand] : $this->defaultTemplates;
}
/**
* Get all loaded templates for all check commands
*
* @return Template[][]
*/
public function getAllTemplates()
{
return $this->templates;
}
}