Best way to list poolmembers

Hi Conny!

You can actually fetch an array of pools at the same time which reduces overhead alot.

Something like this:

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

$user = 'myuser'
$pass = 'mypassword'

$success = Initialize-F5.iControl -Username $user -Password $pass -HostName 1.1.1.1
$f5 = Get-F5.iControl

$PoolList = $f5.LocalLBPool.get_list()
$ActionServiceDown = $f5.LocalLBPool.get_action_on_service_down($PoolList)
$LBMethod = $f5.LocalLBPool.get_lb_method($PoolList)


for($i=0;$i -lt ($PoolList.Count);$i++){

    Pool Name
    $PoolList[$i]

    Action on service down
    $ActionServiceDown[$i]

    Load balancing method
    $LBMethod[$i]       
}

/Patrik

Hi, Thanks! Sorry for the late reply. I can see that your code runs faster, but i don't know how to use it to get the same output as i get with $poolmembers = foreach($pool in $pools) { Get-F5.LTMPoolMember -Pool $pool }

In many of the examples they use 2D-arrays. Is that the only way to do it? Because that is to advanced for me 🙂

Are you using some kind of framework or custom functions? I am not sure that "Get-F5.LTMPoolMember -Pool $pool" actually exists as a command.

What exactly do you want to do?

/Patrik

Hi, this is complete code:

Add-pssnapin iControlSnapIn
Initialize-F5.iControl -HostName myhost -Username myuser -Password mypass
$ic = Get-F5.iControl
$ic.ManagementPartition.set_active_partition('mypartition')
$pools = Get-F5.LTMPool | Select -ExpandProperty Name
$poolmembers = foreach($pool in $pools) { Get-F5.LTMPoolMember -Pool $pool }
$poolmembers | Where-Object {$_.Availability -eq 'AVAILABILITY_STATUS_RED' }

Hi!

To be honest I did not know that this method existed and I could not find it in the API. However, if all you want is to speed it up I replicated the result in a function below.

Untested on v10 though. Let me know if you encounter issues.

Initialize Snapin

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

Add a custom class with properties matching the object you got before
Add-Type @'
public class Member
{
    public string Pool;
    public string Address;
    public string Port;
    public string Name;
    public string Availability;
    public string Enabled;
    public string Status;
}
'@


Function Get-Pool-Members {

    Param([string]$BigIP, [string]$User, [string]$Password, [string]$Partition="Common") 

    Declare variables
    $ObjMembers = @()
    $NodeDict = @{}

    Connect to the BigIP
    $Success = Initialize-F5.iControl -HostName $BigIP -Username $User -Password $Password

    Get an iControl Handle
    $F5 = Get-F5.iControl

    Change Partition
    $F5.ManagementPartition.set_active_partition($Partition)

    Get Pool Lists, statuses, nodes etc
    $PoolList = $f5.LocalLBPool.get_list()
    $Poolmembers = $f5.LocalLBPool.get_member_v2($PoolList)
    $PoolMemberstatuses = $F5.LocalLBPool.get_member_object_status($PoolList, $Poolmembers)
    $NodeList = $F5.LocalLBNodeAddressV2.get_list()
    $NodeIPList = $f5.LocalLBNodeAddressV2.get_address($NodeList)

    Save the nodes in a dictionary for convenient access
    for($i=0;$i -lt ($NodeList.Count);$i++){
        $NodeDict.Add($NodeList[$i], $NodeIPList[$i])
    }

    for($i=0;$i -lt ($PoolList.Count);$i++){

        for($x=0;$x -lt ($PoolMembers[$i].Count);$x++){

            Create a new temporary object of the member class
            $objTempMember = New-Object Member

            Populate the object
            $objTempMember.Pool = $PoolList[$i]
            $objTempMember.name = $PoolMembers[$i][$x].address
            $objTempMember.Address = $NodeDict[$objTempMember.name]
            $objTempMember.Port = $PoolMembers[$i][$x].port
            $objTempMember.Availability = $PoolMemberstatuses[$i][$x].availability_status
            $objTempMember.Enabled = $PoolMemberstatuses[$i][$x].enabled_status
            $objTempMember.Status = $PoolMemberstatuses[$i][$x].status_description

            Add the object to a list
            $ObjMembers += $objTempMember
        }

    }
    Return the object list
    Return $ObjMembers

}

$poolmembers = Get-Pool-Members -BigIP "10.0.0.1" -User "myuser" -Password "mypassword" -Partition "Common"
$poolmembers | Where-Object {$_.Availability -eq 'AVAILABILITY_STATUS_RED' }

/Patrik

Hi Patrik, That's awesome. Thanks!! Really appreciate this.