Adds documentation for Icinga checkresult

doc/04-Developer-Guide.md

@@ -12,5 +12,6 @@ A detailed overview of functions can be found below
 
 * [New-IcingaCheck](developerguide/01-New-IcingaCheck.md)
 * [New-IcingaCheckPackage](developerguide/02-New-IcingaCheckPackage.md)
+* [New-IcingaCheckResult](developerguide/03-New-IcingaCheckResult.md)
 * [Custom Daemons](developerguide/10-Custom-Daemons.md)
 * [Custom Plugins](developerguide/11-Custom-Plugins.md)

doc/developerguide/03-New-IcingaCheckResult.md

@@ -0,0 +1,83 @@
+# Developer Guide: New-IcingaCheckResult
+
+Below you will find a list of functions and detailed descriptions including use cases for Cmdlets and features the PowerShell Framework provides.
+
+| Type | Return Value | Description |
+| --- | --- | --- |
+| Cmdlet | Integer | Compiles [Icinga Check](01-New-IcingaCheck.md)/[Check Package](02-New-IcingaCheckPackage.md) objects for valid Icinga Plugin output including performance data and returns the Icinga exit code as Integer |
+
+The `IcingaCheckResult` is the final step to finalyse a Icinga Plugin with the Powershell Framework. The checkresult Cmdlet will process either an [Icinga Check](01-New-IcingaCheck.md) or [Check Package](02-New-IcingaCheckPackage.md) object and `compile` the stored details within to write the plugin output, performance data and return the exit code for Icinga as integer.
+
+It will be used like in this example:
+
+```powershell
+return New-IcingaCheckresult -Check $MyCheckObject -Compile;
+```
+
+## Arguments
+
+| Argument     | Input    | Mandatory | Description |
+| ---          | ---      | ---       | ---         |
+| Check        | PSObject |  *        | [Icinga Check](01-New-IcingaCheck.md) or [Check Package](02-New-IcingaCheckPackage.md) object  |
+| NoPerfData  | Bool    |           | Bool value with `true` or `false` to print performance metrics for the plugin or to drop them |
+| Compile   | Switch    |           | Will directly compile the checkresult, print the output to console and return the exit code as Integer |
+
+### Examples
+
+Please note that within the plugin output on console you will see a number at the end, which is the actual exit code of the plugin which is returned. If you are calling `Cmdlets` from within Icinga, you can simply use `exit` for the plugin call with PowerShell to tell Icinga the correct status.
+
+```powershell
+exit Invoke-IcingaCheckCPU;
+```
+
+#### Simple Check Output
+
+```powershell
+$IcingaCheck = New-IcingaCheck -Name 'My Check 1' -Value 37 -Unit '%';
+$IcingaCheck.WarnOutOfRange(20).CritOutOfRange(35) | Out-Null;
+
+return New-IcingaCheckresult -Check $IcingaCheck -Compile;
+```
+
+```text
+[CRITICAL] My Check 1: Value "37%" is greater than threshold "35%"
+| 'my_check_1'=37%;20;35;0;100
+2
+```
+
+#### Simple Check Output without PerfData
+
+```powershell
+$IcingaCheck = New-IcingaCheck -Name 'My Check 1' -Value 37 -Unit '%';
+$IcingaCheck.WarnOutOfRange(20).CritOutOfRange(35) | Out-Null;
+
+return New-IcingaCheckresult -Check $IcingaCheck -NoPerfData $TRUE -Compile;
+```
+
+```text
+[CRITICAL] My Check 1: Value "37%" is greater than threshold "35%"
+2
+```
+
+#### Checkresult with check package
+
+```powershell
+$IcingaCheck1 = New-IcingaCheck -Name 'My Check 1' -Value 37 -Unit '%';
+$IcingaCheck1.WarnOutOfRange(20).CritOutOfRange(35) | Out-Null;
+
+$IcingaCheck2 = New-IcingaCheck -Name 'My Check 2' -Value 18 -Unit '%';
+$IcingaCheck2.WarnOutOfRange(20).CritOutOfRange(35) | Out-Null;
+
+$IcingaPackage = New-IcingaCheckPackage -Name 'My Package' -OperatorAnd;
+$IcingaPackage.AddCheck($IcingaCheck1);
+$IcingaPackage.AddCheck($IcingaCheck2);
+
+return New-IcingaCheckresult -Check $IcingaPackage -Compile;
+```
+
+```text
+[CRITICAL] Check package "My Package" - [CRITICAL] My Check 1
+\_ [CRITICAL] My Check 1: Value "37%" is greater than threshold "35%"
+| 'my_check_1'=37%;20;35;0;100 'my_check_2'=18%;20;35;0;100
+2
+```