Obtain Node Name by Node Description Using PowerShell

Hi mate

Try this one?

Initialize Snapin
if ( (Get-PSSnapin | Where-Object { $_.Name -eq "iControlSnapIn"}) -eq $null ){
    Add-PSSnapIn iControlSnapIn
}

Setup credentials
$User = "user"
$Password = "password"
$BigIP = "10.10.10.10"

Add a type/class to store the node data in
Add-Type @'
public class Node
{
    public string Name;
    public string IP;
    public string Description;
    public string Partition;
}
'@

Create an empty array to store the node objects in
$Nodes = @()

Connect to the BigIP and get an iControl Handle
$Success = Initialize-F5.iControl -HostName $BigIP -Username $User -Password $Password
$F5 = Get-F5.iControl

Get the partition list
$f5partitions = $f5.ManagementPartition
$partitionlist = $f5partitions.get_partition_list()

Loop through each partition saving node information
$partitionlist | foreach-object {
    $Partition = $_.partition_name
    $f5partitions.set_active_partition("Common")

    $NodeNames = $f5.LocalLBNodeAddressV2.get_list()
    $NodeIPs = $f5.LocalLBNodeAddressV2.get_address($NodeNames)
    $NodeDescriptions = $f5.LocalLBNodeAddressV2.get_description($NodeNames)

    for($i=0;$i -lt ($NodeNames.Count);$i++){
        $objTempNode = New-Object Node
        $objTempNode.Name = $NodeNames[$i]
        $objTempNode.IP = $NodeIPs[$i]
        $objTempNode.Description = $NodeDescriptions[$i]
        $objTempNode.Partition = $Partition

        $Nodes += $objTempNode
    }
}

That will store your node information in $Nodes. You can filter by using ie. where-object:

$nodes | Where-Object { $_.description.Contains("WEB") }

Hope that's what you're looking for?

Kind regards, Patrik