ONTAP-Buttons: Standard Code & GetNodeInfo

In the post Create SecureString File we wrote a tool to create a secure string file. Now we put that SecureString file to use, develop the standard code for "ONTAP-Buttons", and illustrate this with an example to Get Node Information for all nodes in a Clustered Data ONTAP cluster.

Batch File In ...\ONTAP-Buttons

The file GetNodeInfo.BAT has this content:

PowerShell.EXE .\PS\GetNodeInfo.PS1 -User admin -Cluster 192.168.168.200 -GetCredential

PowerShell Script in ...\ONTAP-Buttons\PS

The file GetNodeInfo.PS1 has the following content - any line that starts with <#S#> is standard content:

<#S#> Param(

<#S#>   [String]$Title = "Get Node Info", ## TITLE

<#S#>   [String]$User,

        [String]$Cluster,

<#S#>   [Switch]$SkipPressEnter,

<#S#>   [String]$SecurePasswordString,

<#S#>   [Switch]$GetCredential

<#S#> )

<#S#> FUNCTION Wr {Param([String]$Echo,[String]$Ink = "WHITE"); If($Echo){ Write-Host $Echo -ForegroundColor $Ink -NoNewLine } ELSE { Write-Host }}

<#S#> FUNCTION PressEnterToContinue{If(!$SkipPressEnter){Wr "Press ENTER to continue ..." CYAN; Read-Host}}

<#S#> If($SecurePasswordString){ $Password = $SecurePasswordString | ConvertTo-SecureString }

<#S#> elseif($GetCredential){

<#S#>   [String]$WhoAmi = WhoAmi

<#S#>   [String]$CredsFile = "PS\CREDS\" + $WhoAmi.Replace("\",".") + "." + $User.Replace("\",".") + ".CREDS"

<#S#>   If(!(Test-Path $CredsFile)){Wr "Unable to find credentials file!"; Wr; PressEnterToContinue; EXIT}

<#S#>   $Password = (Get-Content $CredsFile) | ConvertTo-SecureString}

<#S#> FUNCTION Load-DataOntapPSTK { If(Get-Module DataONTAP){ RETURN }

<#S#>   [Void](Import-Module DataONTAP -ErrorAction SilentlyContinue)

<#S#>   If(!(Get-Module DataONTAP)){Wr "Unable to load the DataONTAP PowerShell Toolkit - exiting!" RED; Wr; Wr; PressEnterToContinue; EXIT}

<#S#>   Wr "Loaded the Data ONTAP PowerShell Toolkit!" GREEN; Wr; Wr }

<#S#> FUNCTION Connect-ToCluster { Param([String]$ClusterName)

<#S#>   $Connect = Connect-NcController -Name $ClusterName -Credential $Credential -ErrorAction SilentlyContinue

<#S#>   If(!$Connect){Wr "Unable to connect to $ClusterName!" RED; Wr; Wr; PressEnterToContinue; EXIT}

<#S#>   Wr "Connected to $ClusterName" GREEN; Wr; Wr }

<#S#> Wr "+++++ $Title +++++" MAGENTA; Wr; Wr

Wr "Cluster Login User     : " CYAN; If($User){Wr $User; Wr}else{$User = Read-Host}

Wr "Cluster Login Password : " CYAN; If($Password){Wr "*****"; Wr}else{$Password = Read-Host -AsSecureString}

Wr "Cluster                : " CYAN; If($Cluster){Wr $Cluster; Wr}else{$Cluster = Read-Host}; Wr

<#S#> $Credential = New-Object System.Management.Automation.PsCredential($User,$Password)

[Void](Connect-ToCluster $Cluster)

$Nodes = Get-NcNode; $NodeCount = $Nodes.Count; $i = 1

FUNCTION WrData {

  Param([System.Object]$ObjectIn,[String]$PropertyName,[String]$HealthyResult,[Int]$Pad = 28)

  Wr (("$PropertyName".PadRight($Pad).Substring(0,$Pad)) + ": ") CYAN

  [String]$Property = $ObjectIn.$PropertyName

  If($HealthyResult){If($Property -eq $HealthyResult){Wr $Property GREEN}else{Wr $Property RED}}

  elseif($Property){Wr $Property}; Wr

}

$Nodes | Foreach{

  Wr (">>> Node " + [String]$i + " of " + [String]$NodeCount) MAGENTA; Wr

  WrData $_ "Node"

  WrData $_ "CpuBusytime"

  WrData $_ "CpuFirmwareRelease"

  WrData $_ "EnvFailedFanCount" "0"

  WrData $_ "EnvFailedFanMessage" "There are no failed fans."

  WrData $_ "EnvFailedPowerSupplyCount" "0"

  WrData $_ "EnvFailedPowerSupplyMessage" "There are no failed power supplies."

  WrData $_ "EnvOverTemperature" "False"

  WrData $_ "IsAllFlashOptimized"

  WrData $_ "IsDiffSvcs"

  WrData $_ "IsEpsilonNode"

  WrData $_ "IsNodeClusterEligible" "True"

  WrData $_ "IsNodeHealthy" "True"

  WrData $_ "MaximumAggregateSize"

  WrData $_ "MaximumNumberOfVolumes"

  WrData $_ "MaximumVolumeSize"

  WrData $_ "NodeAssetTag"

  WrData $_ "NodeLocation"

  WrData $_ "NodeModel"

  WrData $_ "NodeNvramId"

  WrData $_ "NodeOwner"

  WrData $_ "NodeSerialNumber"

  WrData $_ "NodeStorageConfiguration"

  WrData $_ "NodeSystemId"

  WrData $_ "NodeUptime"

  WrData $_ "NodeUuid"

  WrData $_ "NodeVendor"

  WrData $_ "NvramBatteryStatus" "battery_ok"

  WrData $_ "ProductVersion"

  WrData $_ "VmhostInfo"

  WrData $_ "VmSystemDisks"

  Wr; PressEnterToContinue; $i ++

}

<#S#> Wr "THE END!" MAGENTA; Wr; Wr; PressEnterToContinue; EXIT

GetNodeInfo in Action

Double-click GetNodeInfo.BAT which has already been specified with Cluster User, Cluster Management IP Address, and we have already generated the credential file -

Image: GetNodeInfo.BAT

- and, bam, node info is displayed!

Image: GetNodeInfo.BAT and GetNodeInfo.PS1 in action (with credentials generated by CreateSecureStringFile.BAT)