Simple pihole docker uninstall/update.

uninstall-pihole-docker.ps1

# network variables

$enabledAdapter = Get-WmiObject -Class Win32_NetworkAdapterConfiguration -filter "IPEnabled = $true" | ForEach-Object Description

$enabledAdapter | ForEach-Object {
  Get-NetAdapter -InterfaceDescription $_
}

do {
  $interfaceAlias = Read-Host -Prompt "Enter your main NetAdapter Name (with Internet Access)"

  try {
    $adapterExist = Get-NetAdapter -InterfaceAlias $interfaceAlias -ErrorAction 'SilentlyContinue'
    Write-Verbose -Message "$interfaceAlias Selected" -Verbose
  }
  catch {
    Write-Warning -Message "NetAdapter with name $interfaceAlias not found"
  }

} while (!$adapterExist)

# docker variables

$cmd = "docker.exe"

# stop, remove, prune
$prm = "stop pihole", "rm pihole", "image prune -a -f"

Write-Verbose -Message "Executing Docker Script for PiHole Uninstallation" -Verbose

$prm | ForEach-Object {
  $dockerScript = $cmd + ' ' + $_
  try{
    Invoke-Expression $dockerScript -ErrorAction 'Stop'
  }catch{
    Write-Error $PSItem
    exit
  }
}

Write-Verbose -Message "Pihole uninstalled completely, ready for fresh install" -Verbose

Write-Verbose -Message "Resetting this device DNS" -Verbose
Set-DnsClientServerAddress -InterfaceAlias $interfaceAlias -ResetServerAddresses