icinga-powershell-framework/doc/12-Icinga2AgentExample.md
2019-09-10 09:37:27 +02:00

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Icinga Agent integration as Framework Modules
=====================================
This PowerShell modules provides a wide range of Check-Plugins for Icinga 2 to fetch information from a Windows system. Once the module is installed, the Plugins are ready to use.
Requirements
--------------
To properly work we recommend using the Icinga 2 Agent.
Usage of the Check-Commands
--------------
Each call from the Icinga 2 Agent requires a short initialisation of the module. This can either be done by using the `Import-Module` Cmdlet in case the module is not autoloaded, or by calling
```powershell
Use-Icinga;
```
before each function call. An example on the PowerShell would be this:
```powershell
Use-Icinga; Invoke-IcingaCheckCPU;
```
This will initialise the module and execute the Check-Command afterwards.
Check-Command definition for Icinga
--------------
A example Check-Command for Icinga could look like this:
```icinga
object CheckCommand "Windows Check CPU" {
import "plugin-check-command"
command = [
"C:\\Windows\\System32\\WindowsPowerShell\\v1.0\\powershell.exe"
]
timeout = 3m
arguments += {
"-C" = {
order = 0
value = "Use-Icinga; exit Invoke-IcingaCheckCPU"
}
"-Critical" = {
order = 2
value = "$PowerShell_Critical$"
}
"-NoPerfData" = {
order = 6
set_if = "$PowerShell_NoPerfData$"
}
"-Verbose" = {
order = 4
value = "$PowerShell_Verbose$"
}
"-Warning" = {
order = 1
value = "$PowerShell_Warning$"
}
}
vars.PowerShell_Critical = "$$null"
vars.PowerShell_NoPerfData = "0"
vars.PowerShell_Verbose = "0"
vars.PowerShell_Warning = "$$null"
}
```
This will call the PowerShell, execute the provided initialisation function `Use-Icinga` and afterwards execute the Check-Plugin with the provided arguments.
Unlike other PowerShell integrations, it will automaticly exit with the proper exit code - no special handling is required here.