PfaDscResource.psm1
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enum Ensure { Absent Present } <# Resource to create/remove a volume on the FlashArray specified by the EndPoint property. #> [DscResource()] class PfaVolume { <# Specifies the volume to be created / destroyed. #> [DscProperty(Key)] [string]$Volume <# This property specifies the size of the volume, the unit is represented by the unit property. #> [DscProperty(Mandatory)] [long]$Size <# A single letter representing the unit associated with the size of the volume: - K - G (GiB) - T (TiB) #> [DscProperty(Mandatory)] [char]$Unit <# Defines whether the resource (volume) should be present/absent. #> [DscProperty(Mandatory)] [Ensure] $Ensure <# This property defines the the endpoint of the FlashArray to create the volume on / remove the volume from. #> [DscProperty(Mandatory)] [string] $PfaEndpoint <# This property specifies API token to be used when connecting to the FlashArray. #> [DscProperty(Mandatory)] [string] $PfaApiToken <# Method to set the resource (volume) to the desired state. #> [void] Set() { Write-Host "Checking if volume exists" $volumeExists = $this.TestVolume() $PfaArray = New-PfaArray -EndPoint $this.PfaEndpoint -ApiToken $this.PfaApiToken -IgnoreCertificateError if ($this.ensure -eq [Ensure]::Present) { if (-not $volumeExists) { New-PfaVolume -Array $PfaArray -VolumeName $this.Volume -Size $this.Size -Unit $this.Unit } } else { if ($volumeExists) { Write-Verbose -Message "Removing volume $this.Volume" Remove-PfaVolumeOrSnapshot -Array $PfaArray -Name $this.Volume } } } <# Method to obtain the state the resource (volume) is in. #> [bool] Test() { $present = $this.TestVolume() if ($this.Ensure -eq [Ensure]::Present) { return $present } else { return -not $present } } <# This method returns an instance of this class with the updated key properties. #> [PfaVolume] Get() { $present = $this.TestVolume() if ($present) { $this.Ensure = [Ensure]::Present } else { $this.Ensure = [Ensure]::Absent } return $this } <# Helper method to check if the resource (volume) is already present or absent. #> [bool] TestVolume() { $present = $true $PfaArray = New-PfaArray -EndPoint $this.PfaEndpoint -ApiToken $this.PfaApiToken -IgnoreCertificateError if ((Get-PfaNamedVolumes -Array $PfaArray '*' | Select-String $this.Volume).Count -eq 1) { $present = $true } else { $present = $false } return $present } } [DscResource()] class PfaProtectionGroup { <# Specifies the name of the protection group to be created / removed. #> [DscProperty(Key)] [string]$ProtectionGroup <# Defines whether the resource (protection group) should be present/absent. #> [DscProperty(Mandatory)] [Ensure] $Ensure <# This property defines the the endpoint of the FlashArray to create the protection group on / remove the protection group from. #> [DscProperty(Mandatory)] [string] $PfaEndpoint <# This property specifies API token to be used when connecting to the FlashArray. #> [DscProperty(Mandatory)] [string] $PfaApiToken <# Method to set the resource (protection group) to the desired state. #> [void] Set() { Write-Host "Checking if protection group exists" $protectionGroupExists = $this.TestProtectionGroup() $PfaArray = New-PfaArray -EndPoint $this.PfaEndpoint -ApiToken $this.PfaApiToken -IgnoreCertificateError if ($this.ensure -eq [Ensure]::Present) { if (-not $protectionGroupExists) { New-PfaProtectionGroup -Array $PfaArray -Name $this.ProtectionGroup } } else { if ($protectionGroupExists) { Write-Verbose -Message "Removing protection group $this.ProtectionGroup" Remove-PfaProtectionGroupOrSnapshot -Array $PfaArray -Name $this.ProtectionGroup } } } <# It should return True or False, showing whether the resource is in a desired state. #> [bool] Test() { $present = $this.TestProtectionGroup() if ($this.Ensure -eq [Ensure]::Present) { return $present } else { return -not $present } } <# This method returns an instance of this class with the updated key properties. #> [PfaProtectionGroup] Get() { $present = $this.TestProtectionGroup() if ($present) { $this.Ensure = [Ensure]::Present } else { $this.Ensure = [Ensure]::Absent } return $this } <# Helper method to check if the resource (protection group) is present / absent. #> [bool] TestProtectionGroup() { $present = $true $PfaArray = New-PfaArray -EndPoint $this.PfaEndpoint -ApiToken $this.PfaApiToken -IgnoreCertificateError if ((Get-PfaProtectionGroups -Array $PfaArray | Select-Object name | Select-String $this.ProtectionGroup).Count -eq 1) { $present = $true } else { $present = $false } return $present } } [DscResource()] class PfaPodVolume { <# Specifies the unstretched pod that the volume is to be added to / removed from. #> [DscProperty(Key)] [string]$Pod <# Specifies the volume to be added to / removed from the pod. #> [DscProperty(Key)] [string]$Volume <# Specifies whether the resource (pod volume) should be present or absent. #> [DscProperty(Mandatory)] [Ensure] $Ensure <# This property defines the the endpoint of the FlashArray that the pods and volumes reside on. #> [DscProperty(Mandatory)] [string] $PfaEndpoint <# This property specifies API token to be used when connecting to the FlashArray. #> [DscProperty(Mandatory)] [string] $PfaApiToken <# Method to set the resource (pod volume) to the desired state. #> [void] Set() { Write-Host "Checking if volume exists in the pod" $volumeExistsInPod = $this.TestPodVolume() $PfaArray = New-PfaArray -EndPoint $this.PfaEndpoint -ApiToken $this.PfaApiToken -IgnoreCertificateError if ($this.ensure -eq [Ensure]::Present) { if (-not $volumeExistsInPod) { Add-PfaVolumeToContainer -Array $PfaArray -Container $this.Pod -Name $this.Volume } } else { if ($volumeExistsInPod) { Write-Verbose -Message "Removing volume $this.Volume from pod $this.Pod" $PodVolume = $this.Pod + "::" + $this.Volume Remove-PfaVolumeFromContainer -Array $PfaArray -Name $PodVolume } } } <# Method to return True or False, showing whether the resource is in a desired state. #> [bool] Test() { $present = $this.TestPodVolume() if ($this.Ensure -eq [Ensure]::Present) { return $present } else { return -not $present } } <# This method returns an instance of this class with the updated key properties. #> [PfaPodVolume] Get() { $present = $this.TestPodVolume() if ($present) { $this.Ensure = [Ensure]::Present } else { $this.Ensure = [Ensure]::Absent } return $this } <# Helper method to check if the volume is already present in the pod. #> [bool] TestPodVolume() { $present = $true $PfaArray = New-PfaArray -EndPoint $this.PfaEndpoint -ApiToken $this.PfaApiToken -IgnoreCertificateError $fqvn = $this.Pod + "::" + $this.Volume; if ((Get-PfaNamedVolumes -Array $PfaArray '*' | Select-String $fqvn).Count -eq 1) { $present = $true } else { $present = $false } return $present } } |