Octopus.WindowsService.BeforePostDeploy.ps1

## --------------------------------------------------------------------------------------
## Configuration
## --------------------------------------------------------------------------------------

$isEnabled = $OctopusParameters["Octopus.Action.WindowsService.CreateOrUpdateService"]
if (!$isEnabled -or ![Bool]::Parse($isEnabled)) 
{
    exit 0
}

$serviceName = $OctopusParameters["Octopus.Action.WindowsService.ServiceName"]
$displayName = $OctopusParameters["Octopus.Action.WindowsService.DisplayName"]
$executablePath = $OctopusParameters["Octopus.Action.WindowsService.ExecutablePath"]
$arguments = $OctopusParameters["Octopus.Action.WindowsService.Arguments"]
$startMode = $OctopusParameters["Octopus.Action.WindowsService.StartMode"]
$serviceAccount = $OctopusParameters["Octopus.Action.WindowsService.ServiceAccount"]
$customAccountName = $OctopusParameters["Octopus.Action.WindowsService.CustomAccountName"]
$customAccountPassword = $OctopusParameters["Octopus.Action.WindowsService.CustomAccountPassword"]
$dependencies = $OctopusParameters["Octopus.Action.WindowsService.Dependencies"]
$description = $OctopusParameters["Octopus.Action.WindowsService.Description"]

## --------------------------------------------------------------------------------------
## Run
## --------------------------------------------------------------------------------------

$fullPath = (Resolve-Path $executablePath).ProviderPath

if (!(test-path $fullPath))
{
	Write-Error "The service executable file could not be found: $fullPath"
	exit -1
}

if (!$serviceName)
{
	Write-Error "No service name was specified. Please specify a service name, or disable the Windows Service feature for this project."
	exit -2
}

$binPath = ("\`"" + $fullPath + "\`"")
if ($arguments) 
{
	$arguments = $arguments.Replace("`"", "\`"")
	$binPath = ($binPath + " " + $arguments)	
}

$fullArguments = @($serviceName, "binPath=", "`"$binPath`"")
if ($displayName) 
{
	$fullArguments += @("DisplayName=", "`"$displayName`"")
}

if(!$dependencies)
{
	$dependencies = "/"
}
$fullArguments += @("depend=", $dependencies)

if ($startMode -and ($startMode -ne 'unchanged')) 
{
	$fullArguments += @("start=", $startMode)
}

$fullArgumentsSafeForConsole = $fullArguments
if ($serviceAccount -ne "_CUSTOM") 
{
	if ($serviceAccount) 
	{
		$fullArguments += @("obj=", $serviceAccount)
	}	
	$fullArgumentsSafeForConsole = $fullArguments
}
else 
{
	if ($customAccountName) 
	{
		$fullArguments += @("obj=", $customAccountName)
	}	
	$fullArgumentsSafeForConsole = $fullArguments
	if ($customAccountPassword) 
	{
		$customAccountPassword = $customAccountPassword.Replace('"', '""')
		$fullArguments += @("password=", "`"$customAccountPassword`"")
		$fullArgumentsSafeForConsole += "password= `"************`""
	}
}

$service = Get-Service $ServiceName -ErrorAction SilentlyContinue

if (!$service)
{
	Write-Host "The $serviceName service does not exist. It will be created."
	Write-Host "sc.exe create $fullArgumentsSafeForConsole"

	& "sc.exe" create ($fullArguments)

	if ($LastExitCode -ne 0) {
		throw "sc.exe create failed with exit code: $LastExitCode"
	}
}
else
{
	Write-Host "The $serviceName service already exists. It will be stopped and reconfigured."
	Write-Host "Stopping the $serviceName service"

	Stop-Service $ServiceName -Force

	Write-Host "sc.exe config $fullArgumentsSafeForConsole"
	& "sc.exe" config ($fullArguments)
	
	if ($LastExitCode -ne 0) {
		throw "sc.exe config failed with exit code: $LastExitCode"
	}
}

if ($description) 
{
	Write-Host "Updating the service description"
	& "sc.exe" description $serviceName $description
	if ($LastExitCode -ne 0) {
		throw "sc.exe description failed with exit code: $LastExitCode"
	}
}

$status = Get-WMIObject win32_service -filter ("name='" + $serviceName + "'") -computer "." | select -expand startMode

if ($startMode -eq "unchanged")
{
	Write-Host "The $serviceName service start mode is set to unchanged, so it won't be started. You will need to start the service manually."
}
elseif ($status -eq "Disabled")
{
	Write-Host "The $serviceName service is disabled, so it won't be started."
}
elseif ($startMode -eq "demand")
{
	Write-Host "The $serviceName service is set to 'Manual' start-up, so Octopus won't start it here."
}
else
{
	Write-Host "Starting the $serviceName service"
	Start-Service $ServiceName
	Write-Host "Service started"
}