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cvandal_163340's avatar
cvandal_163340
Icon for Nimbostratus rankNimbostratus
Jul 14, 2014

Obtain Node Name by Node Description Using PowerShell

Hello,

 

Is it possible to obtain a node's name by looking at the node's description using PowerShell? Almost every node within our environment doesn't have a friendly node name however the description matches the node's hostname. I'm thinking if I could store every node and that node's properties in an array, search for the description, and if found determine the name.

 

devops
iControl
management
microsoft
powershell

1 Reply

  • Patrik_Jonsson's avatar
    Patrik_Jonsson
    Icon for MVP rankMVP
    Jul 16, 2014

    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