setup-arr.ps1

#http://www.iis.net/learn/extensions/configuring-application-request-routing-(arr)/achieving-high-availability-and-scalability-arr-and-nlb
# This script is used in octopus to deploy ARR to host targetted for it.
#

function stop-WAS
{
    $i = 0
	$service = get-service WAS  -ErrorAction SilentlyContinue	
    if($service)
    {
        if($service.status -ne 'Stopped')
        {
	        While($i -lt 3)
            {
		        $i +=1
				Write-output 'Stopping WAS'
		        Stop-Service $service.Name -Force | Write-Host
		        $service = get-service $service.name
		        Start-Sleep 10
	        }
	        if($i -eq 3 -and $service.Status -ne 'Stopped')
	        {
		        write-error 'Cannot Stop WAS Service -- Stop manually'
	        }
			else{	$Status ='Stopped'}
        }
		else
		{
			$Status ='Stopped'
		}
    }
	return $status
}

function start-WAS
{
    $i =0
	$service = get-service WAS  -ErrorAction SilentlyContinue
    If($service)
    { 
        if	(($service.status) -ne 'Running')
        {
	        While($i -lt 3)
	        {
		        $i +=1
				Write-output 'Starting WAS'
		        start-Service $service.Name | Write-Host
		        $service = get-service $service.name
				
		        Start-Sleep 10
	        }
	        if($i -eq 3 -and $service.Status -ne 'Running')
	        {
		        write-error 'Cannot start WAS Service -- Start manually'
	        }
        }
    }
}

function stop-wmsvc
{
	$service = get-service wmsvc -ErrorAction SilentlyContinue
    if($service)
    { 	
        if($service.status -ne 'Stopped')
        {
	        While($i -lt 3)
            {
		        $i +=1
				Write-output 'Stopping  WMSVC'
		        Stop-Service $service.Name | Write-Host
		        $service = get-service $service.name
		        Start-Sleep 10
	        }
	        if($i -eq 3 -and $service.Status -ne 'Stopped')
	        {
		        write-error 'Cannot Stop wmsvc Service -- Stop manually'
			}
			else{	$Status ='Stopped'}
        }
		else
		{
			$Status ='Stopped'
		}
    }
	return $status
}

function start-wmsvc
{
	$service = get-service wmsvc -ErrorAction SilentlyContinue
    if($service)
    {
	    While((($service.status) -ne 'Running') -or ($i -lt 3))
	    {
		    $i +=1
			Write-output 'Starting  WMSVC'
		    start-Service $service.Name | Write-Host
		    $service = get-service $service.name
		    Start-Sleep 10
	    }
	    if($i -eq 3 -and $service.Status -ne 'Running')
	    {
		    write-error 'Cannot start wmsvc Service -- Start manually'
	    }
    }
}

function start-w3svc
{
	$service = get-service w3svc -ErrorAction SilentlyContinue
    if($service)
    {
	    While((($service.status) -ne 'Running') -or ($i -lt 3))
	    {
		    $i +=1
			Write-output 'Starting  W3SVC'
		    start-Service $service.Name | Write-Host
		    $service = get-service $service.name
		    Start-Sleep 10
	    }
	    if($i -eq 3 -and $service.Status -ne 'Running')
	    {
		    write-error 'Cannot start w3svc Service -- Start manually'
	    }
    }
}

function ping-msiModule
{
    param([string]$msiModulePath)
    pushd
    $MsiInstalled = $null
	if(((Get-Module -name msi).Name)-ne 'MSI')
	{
		import-module $msiModulePath |Write-Host
        if((Get-Module -name msi).Name)
        {$installed = $true}
	}
    if(((Get-Module -name msi).Name)-eq 'MSI')
    {
        $installed = $true
    }
    else
    {
        $installed = $false
    }
    popd
    return $installed
}

function remove-msiModule
{
    param([string]$msiModulePath)
    pushd
    $MsiInstalled = $null
	if(((Get-Module -name msi).Name)-ne 'MSI')
	{
		import-module $msiModulePath |Write-Host
        if((Get-Module -name msi).Name)
        {$installed = $true}
	}
    if(((Get-Module -name msi).Name)-eq 'MSI')
    {
		Remove-Module 'MSI' |Write-Host  
		$installed = $true
    }
    else
    {
		Write-host 'Cannot remove module MSI'
        $installed = $false
    }
    popd
    return $installed
}

function ping-MsiInstalled
{
param([string]$msiName)

   $MsiInstalled = (Get-MSIProductInfo | Where-Object{$_.ProductName -like "*$MsiName*"}).ProductCode
   write-host "PingMsiInstalled: $msiName Product Code is $msiInstalled"
   return $MsiInstalled
}

function install-MSI
{
    param([string]$fullMsiPackagePath)
    if(test-path $fullMsiPackagePath)
    {
        $PackageName = (get-item $fullMsiPackagePath).name
        $PackagePath = (get-childitem $fullMsiPackagePath).FullName
        $logPath = "c:\temp\"
        if(!(test-path $logPath -ErrorAction SilentlyContinue))
        {
            mkdir $logPath
        }
        $a = " /i $PackagePath  /l c:\temp\$packageName.log /quiet"
        write-host "Install MSI: Installing $fullMsiPackagePath"
        start-process msiexec.exe -ArgumentList $a -Wait

    }

    
}
function uninstall-MSI
{
    param([string]$fullMsiPackagePath)
    if(test-path $fullMsiPackagePath)
    {
        $PackageName = (get-item $fullMsiPackagePath).name
        $PackagePath = (get-childitem $fullMsiPackagePath).FullName
        $args2 = " /x $PackagePath /quiet"
        start-process msiexec.exe -ArgumentList $args2 -Wait

    }

    
}
function get-MsiName
{
    param([string]$packagePath)
    
    $packageName = (Get-MSISummaryInfo -path $packagePath).Subject
    write-host "GetMSIName: Package name is $packageName"
    return $packageName

}

function Confirm-IIS
{
	#if this function finds out in the addition of windows features that anything must be installed it'll pass back the value Reboot 
	#Other values returned by this function include Installed - which means all necessary features are installed.
	#or if it cannot install a function this will throw an exception.
	$installed = $false #confirm IIS modules are installed.
	#Not installing these modules as they cannot seem to be found on 2k12 r2 "PowerShell-V2","NET-Framework-Core","NET-Framework-Features","Web-Asp-Net","Web-Net-Ext"
	$iisModules = "FileAndStorage-Services","File-Services","FS-FileServer","Storage-Services","Web-Server","Web-WebServer","Web-Common-Http","Web-Default-Doc","Web-Dir-Browsing","Web-Http-Errors","Web-Static-Content","Web-Http-Redirect","Web-Health","Web-Http-Logging","Web-Request-Monitor","Web-Performance","Web-Stat-Compression","Web-Security","Web-Filtering","Web-Basic-Auth","Web-CertProvider","Web-IP-Security","Web-Url-Auth","Web-Windows-Auth","Web-App-Dev","Web-Net-Ext45","Web-ASP","Web-Asp-Net45","Web-ISAPI-Ext","Web-ISAPI-Filter","Web-Ftp-Server","Web-Ftp-Service","Web-Mgmt-Tools","Web-Mgmt-Console","Web-Scripting-Tools","Web-Mgmt-Service","NET-Framework-45-Features","NET-Framework-45-Core","NET-Framework-45-ASPNET","NET-WCF-Services45","NET-WCF-TCP-PortSharing45","MSMQ","MSMQ-Services","MSMQ-Server","FS-SMB1","User-Interfaces-Infra","Server-Gui-Mgmt-Infra","Server-Gui-Shell","PowerShellRoot","PowerShell","WoW64-Support"
	Write-host "checking iisModules: $iisModules"
	foreach($module in $iisModules)
	{
		Write-output "func Confirm-IIS: checking for $module"
        $featureStatus = (Get-WindowsFeature -Name $module).InstallState
		if($featureStatus -ne 'Installed')
		{
			try
			{	
				$installResults = Add-WindowsFeature -Name $module
				if(($installResults.RestartNeeded -eq $true)-and ($installed -ne 'Reboot')) #only set Reboot one and only one time
				{
					Write-host "Func Confirm-IIS: $module Requires a Reboot"
					$installed = 'Reboot'
				}
				elseif(($installResults.Success -eq $true) -and ($installed -ne 'Reboot'))
				{
					Write-host "Func Confirm-IIS: $module has been installed"
					$installed = 'Installed'
				}
			}
			catch
			{
			  "Error was $_"
			  $line = $_.InvocationInfo.ScriptLineNumber
			  "Error was in Line $line"

			}
		}
		else
		{
			Write-host "Func Confirm-IIS: $module has already been installed"
		}
	}
}
#msi module location is found here https://psmsi.codeplex.com/wikipage?title=Help.v2.3.0&FocusElement=Comment
#for this module the msi was installed and the corresponding module directory was extraced and included with this Solution.\
#$installPath = 'D:\arrInstall'
Write-Output "InstallMSI Octopus Variable is set to: $installMSI"
Write-Output "InstallPath Octopus Variable is set to: $installPath"
if(($installMSI -ne $null) -and ($installPath -ne $null))
{
	write-output "Attempting to Confirm Necessary Features are installed"
	$IISConfigured = Confirm-IIS  #proper IIS Features must be installed first.  If they get installed and windows claims a reboot is necessary then this script must be run again after the required features are added.
	if($IISConfigured -ne 'Reboot')
	{
		$msiModulePath = "$installPath\modules\MSI"
		write-host "install path: $installPath ModulePath: $msiModulePath"

		$moduleInstalled = ping-msiModule $msiModulePath
		$msiPath = "$installPath"

		$msi2install = 'webfarm_v1.1_amd64_en_us.msi','requestRouter_x64.msi','rewrite_amd64_en-US.msi'
		Write-Output "MsiModules are $msi2Install"
		if ($moduleInstalled)
		{
			try
			{

				foreach($msi in $msi2install)
				{
	        
					$msiFullPath = (get-item "$msiPath\$msi").FullName
					$arrFriendlyName = get-msiName $msiFullPath
					$installed = ping-MsiInstalled $arrFriendlyName
					write-output "$arrFriendlyName ID is $installed"
					if(!$installed)
					{
						$serviceStatusWas = Stop-WAS
						$serviceStatusWmsvc = stop-wmsvc
						 if($InstallMsi -eq 'Install')
						 {
							write-output "Attempting to install $msifullpath $arrFriendlyName"
							Install-MSI $msiFullPath
							ping-MsiInstalled $arrFriendlyName | write-host
						 }
  					}
					elseif ($installMsi -eq 'Remove')
					{
						write-output "Attempting to remove $msifullpath $arrFriendlyName"
						 uninstall-MSI $msiFullPath
						 ping-MsiInstalled $arrFriendlyName | write-host
					 }
					elseif ($installMSI -eq $null)
					{
					 write-host 'InstallMSI switch must be either set to Install or Remove'
					}
             
				}
				if($serviceStatusWas -eq 'Stopped')
				{
				start-WAS
				$w3start = $true
				}
				if($serviceStatusWmsvc -eq 'Stopped')
				{
				start-wmsvc
				$w3start = $true
				}
				if($w3start -eq $true)
				{
				start-w3svc
				}
			}
			catch
			{

			}
		}
		else
		{
			Write-Error "Error: Cannot install MSI Powershell module Exiting -- $msiModulePath"
		}
		remove-msiModule
	}
	else
	{ 
		Write-Warning "Windows Features have been added machine must be Rebooted and Octopus Step run Once again"
	}
}
else
{
	Write-Warning "Octopus variables are not setInstallMSI "
}