DevOps | IIS | Creates a new IIS Pool containing a website and that contains a single application

IISPoolWebsiteAndApplication.ps1

Import-Module ServerManager
Import-Module WebAdministration

######################################################################################################################################################################################
# Functions
######################################################################################################################################################################################
function Refresh-Directory { 
    Param (
        [Parameter(Position=0,mandatory=$true)]
        [String]$DirectoryPath
    )
	    
    #If it exists, then remove it
    if(Test-Path $DirectoryPath){
		#If we make it this far, the folder is not locked
        Remove-Item "${DirectoryPath}" -Force -Recurse
		Write-Host "Removed Directory ${DirectoryPath} as there was already a folder."
    }

    #Create a new Directory
    New-Item -ItemType directory -Path "${DirectoryPath}"
}

#Used to transform the configurations in the package that follow the structure
# web.devonline.config => web.config (dev)
# web.proddmz.config => web.config (uat dmz etc.)
function Transform-Configurations {

	$configs = Get-ChildItem -Path "$($OctopusParameters['Octopus.Action.Package.InstallationDirectoryPath'])\*" -Include *.config,*.json
	$environment = $OctopusParameters["Octopus.Environment.Name"]
	$roles = $OctopusParameters["Octopus.Machine.Roles"]
		
	#Check to see if the current machine is in the DMZ, then ensure we update 
	#the environment string to be uatdmz instead of uat
	if($roles -like '*DMZ*'){
		$environment = "$($environment)dmz".ToLower()
	}else{
		$environment = "$($environment)".ToLower()
	}

	Write-Output $roles
	Write-Output "Environment set to $($environment)"

	#Rename all the default configurations first
	foreach($configFile in $configs)
	{
		#Advice.Web.DevOnline.Config
		$currentFile = $($configFile.FullName)
		#[Advice, Web, Config]
		$currentFileSplit = $($configFile.Name.ToLower()).Split(".")

		#Advice.Web
		$currentFileName = "$($($currentFileSplit)[0..($($currentFileSplit).Count-3)] -join ".")"
		#Config
		$currentFileExt = "$($currentFileSplit[$($currentFileSplit).Length-1])"
		#DevOnline
		$currentFileEnvironment = "$($currentFileSplit[$($currentFileSplit).Length-2])"

		#If it's web.config (without the .devonline) then lets rename it to keep it
		if(!($currentFileEnvironment.Contains("online") -or $currentFileEnvironment.Contains("offline"))){
			Write-Output "\> $currentFile => $($currentFile).default"
			Rename-Item -Path "$currentFile" -NewName "$($currentFile).default"
			continue
		}
	}

	#Rename all the Environment Specific ones
	$configs = Get-ChildItem -Path "$($OctopusParameters['Octopus.Action.Package.InstallationDirectoryPath'])\*" -Include *.config,*.json
	foreach($configFile in $configs)
	{
		#Advice.Web.DevOnline.Config
		$currentFile = $($configFile.FullName)
		#[Advice, Web, Config]
		$currentFileSplit = $($configFile.Name.ToLower()).Split(".")

		#Advice.Web
		$currentFileName = "$($($currentFileSplit)[0..($($currentFileSplit).Count-3)] -join ".")"
		#Config
		$currentFileExt = "$($currentFileSplit[$($currentFileSplit).Length-1])"
		#DevOnline
		$currentFileEnvironment = "$($currentFileSplit[$($currentFileSplit).Length-2])"
		
		#If the current config file currentFileEnvironment is equal to currentFileEnvironment'Online'; rename it to applicationName.Config
		if($currentFileEnvironment -eq "$($environment.ToLower())online"){
			Write-Output "$> $currentFile => $($currentFileName).$($currentFileExt)"
			Rename-Item -Path "$currentFile" -NewName "$($currentFileName).$($currentFileExt)"
		}else{
			Remove-Item $configFile
		}
	}

}

######################################################################################################################################################################################
# Script
######################################################################################################################################################################################

#Variables
$ProjectName=$OctopusParameters['ProjectName']
$IISPortHTTP=$OctopusParameters['IISPortHTTP']
$IISPortHTTPS=$OctopusParameters['IISPortHTTPS']

$OctopusPackageInstalledDirectoryPath=$OctopusParameters['Octopus.Action.Package.InstallationDirectoryPath']
$MachineName=$OctopusParameters['Octopus.Machine.Name']

Write-Host "::Project Path: ${OctopusPackageInstalledDirectoryPath}"
Get-ChildItem -Path "${OctopusPackageInstalledDirectoryPath}"

#Validation 
if([string]::IsNullOrEmpty($ProjectName)){
    Write-Error "Project Name is Null or Empty. Exiting."
    return
}
if([string]::IsNullOrEmpty($IISPortHTTP)){
    Write-Error "IISPort is Null or Empty. Exiting"
    return
}

#Generated Variables
$ProjectAppPool="${ProjectName}Pool"
$ProjectWebSite="$ProjectName"
$ProjectWebApp="My$ProjectName"
$iisAppPoolDotNetVersion="v4.0"

#File System
$InstallLocation="E:\ILRetail\eBusiness\Applications\${ProjectName}"
$ProjectWebsiteInstallLocation="${InstallLocation}.VD"
$ProjectWebAppInstallLocation="${InstallLocation}"

#Transform Files
Transform-Configurations

#Check if there is an Web Application to Remove
if (Test-Path "IIS:\Sites\${ProjectWebSite}\${ProjectWebApp}"){
	Write-Host "WebApplication IIS:\Sites\${ProjectWebSite}\${ProjectWebApp} found. Deleting..."
    Remove-WebApplication "${ProjectWebApp}" -Site "${ProjectWebSite}"
}

#Check if there is a Web Site to Remove
if (Test-Path "IIS:\Sites\${ProjectWebSite}"){
    Write-Host "Site IIS:\Sites\${ProjectWebSite} found. Deleting..."
	Remove-WebSite ${ProjectWebSite}
}

#Check if there is an App Pool to remove
if (Test-Path "IIS:\AppPools\${ProjectAppPool}" -pathType container){
	Write-Host "AppPool IIS:\AppPools\${ProjectAppPool} found. Deleting..."
    Remove-WebAppPool $ProjectAppPool
}   

#Create new App Pool and set to NetworkService and restart at 3am with .NET Version V4.0
$appPool = New-Item "IIS:\AppPools\${ProjectAppPool}"
$appPool | Set-ItemProperty -Name managedRuntimeVersion -Value $iisAppPoolDotNetVersion
$appPool | Set-ItemProperty -Name processModel.identityType -Value 2
$appPool | Set-ItemProperty -Name Recycling.periodicRestart.time -Value 0
$appPool | Set-ItemProperty -Name Recycling.periodicRestart.schedule -Value @{value="03:00"}
#Get Properties#Get-Item "${iisAppPoolName}" | select *

#Create Website
Refresh-Directory -DirectoryPath "${ProjectWebsiteInstallLocation}"
New-WebSite -Name ${ProjectName} -Port ${IISPortHTTP} -IPAddress "*" -PhysicalPath "${ProjectWebsiteInstallLocation}" -ApplicationPool "${ProjectAppPool}"

#Create Web Application
Refresh-Directory -DirectoryPath "${ProjectWebAppInstallLocation}"
New-WebApplication -Name "${ProjectWebApp}" -Site "${ProjectWebSite}" -PhysicalPath "${ProjectWebAppInstallLocation}" -ApplicationPool "${ProjectAppPool}"

#Copy files 
Write-Host "::Project Path: ${OctopusPackageInstalledDirectoryPath}"
Get-ChildItem -Path "${OctopusPackageInstalledDirectoryPath}"
Copy-Item -Path "${OctopusPackageInstalledDirectoryPath}\*" -Recurse -Destination "${ProjectWebAppInstallLocation}" -Container

#Start Sites
Start-Website "${ProjectName}"
Start-WebAppPool -Name "${ProjectAppPool}"

#Dummey Request
#$webclient = New-Object Net.WebClient
#$webclient.DownloadString("http://127.0.0.1:${IISPortHTTP}/${$ProjectWebApp}");

#HTTPS Code
$dnsName = '${MachineName}:${IISPortHTTPS}'
$newCert = New-SelfSignedCertificate -DnsName $dnsName -CertStoreLocation cert:\LocalMachine\My
# get the web binding of the site
$binding = Get-WebBinding -Name $ProjectWebSite -Protocol "https"

# set the ssl certificate
$binding.AddSslCertificate($newCert.GetCertHashString(), "my")
New-WebBinding -Name "Default Web Site" -IPAddress "*" -Port 80 -HostHeader TestSite

New-WebBinding -Name "${ProjectWebSite}" -IPAddress * -Port ${IISPortHTTPS} -Protocol "https"