CODEWITHSUNDEEP
powershellinvoke-commandwinrm
Anirban Banerjee
Anirban Banerjee

Reputation: 95

Execute Multiline Powershell Script remotely

I have a script which checks AppPool Status on the local IIS system. It takes inputs in the script command line if we want to exclude certain AppPool. If there is no exclusion list provided in the command line then it basically finds all appPool status of IIS

Now what we need is to execute the script remotely on a remote IIS server instead of a local IIS server over winRM.

The webAdministration module will only be present on the remote IIS server and not on the local server from where the script is getting executed.

So how do we bring in Invoke-Command for remotely executing multi-line script like this over Remote Server ?

#Pass semi colon separated argument to exclude from being monitored eg Default Web Site;WebBDC3 (no quotation)

if (!$args.count -eq 0){
    $EA=$args.get(0).split(';')
}

Import-Module WebAdministration


$returnStateOK = 0
# $returnStateWarning = 1
$returnStateCritical = 2
$returnStateUnknown = 3

$statuses = @{
    ok = @()
    critical = @()
}

$criticalTitles = "";
$countCritical = 0;
$countOK = 0;

if (-Not ($EA)){
    $ApplicationPoolsState = Get-WebAppPoolState | % {  return  @{($_.itemxpath -split ("'"))[1]="$($_.value)" } } | % getEnumerator | % {
        if ($_.value -ne "Started"){
            $statuses.critical += $_.key
        }
        else{
            $statuses.ok += $_.key
        }
    }
}
else{
    [System.Collections.ArrayList]$ApplicationPoolsState = @() 
    Get-WebAppPoolState | % { 
      $count = $ApplicationPoolsState.add(@{($_.itemxpath -split ("'"))[1]="$($_.value)"})
    }
    foreach($h in $EA){
        if ($($ApplicationPoolsState.keys).IndexOf($h) -ge 0){
            $ApplicationPoolsState.RemoveAt($($ApplicationPoolsState.keys).IndexOf($h))
        }
    }
    $ApplicationPoolsState | % getEnumerator | % {
        if ($_.value -ne "Started"){
            $statuses.critical += $_.key
        }
        else{
            $statuses.ok += $_.key
        }
    }
}

$countCritical = $statuses.critical.length
$countOK = $statuses.ok.length

EDIT: Thanks Tony for your response

I was thinking on the following line

if (-Not ($EA)){
    $ApplicationPoolsState = Get-WebAppPoolState | % {  return  @{($_.itemxpath -split ("'"))[1]="$($_.value)" } } | % getEnumerator | % {
        if ($_.value -ne "Started"){
            $statuses.critical += $_.key
        }
        else{
            $statuses.ok += $_.key
        }
    }
}

I just need to execute the following on remote server

Import-Module WebAdministration Get-WebAppPoolState

Rest can be executed in the local server.

Now can i just invoke-command for these two lines using

$so = New-PSSessionOption -SkipCACheck -SkipCNCheck -SkipRevocationCheck 

$ApplicationPoolsState =  Invoke-Command -ComputerName ${Node.DNS} -UseSSL -ScriptBlock { Import-Module WebAdministration ; Get-WebAppPoolState } -SessionOption $so -Credential Server\User1 | % {  return  @{($_.itemxpath -split ("'"))[1]="$($_.value)" } } | % getEnumerator | % {
        if ($_.value -ne "Started"){
            $statuses.critical += $_.key
        }
        else{
            $statuses.ok += $_.key
        }
    }

This way i will execute only 2 lines on remote get the data locally and process the rest of the code locally

Upvotes: 0

Views: 290

Answers (1)

Toni
Toni

Reputation: 1826

You only have to define a scriptblock and pass it to the parameter -ScriptBlock of the invoke-command cmdlet, e.g.:

$scriptblock = {
    #put your code in here
}

Invoke-Command -ComputerName [computername] -ScriptBlock $scriptBlock

Upvotes: 0

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