Powershell Create IIS Web Binding

CreateNewBindings.ps1

#Based on https://stackoverflow.com/a/26512480/7818494
function CreateNewBindings(
    [parameter(Mandatory = $true, HelpMessage = 'Missing Argument WebsiteName')][string]$WebsiteName,
    [parameter(Mandatory = $true, HelpMessage = 'Missing Argument HostHeader')][string]$HostHeader,
    [parameter(Mandatory = $true, HelpMessage = 'Missing Argument CertCommonName')][string]$CertCommonName) {
    Write-Host Creating new http binding $HostHeader on $WebsiteName
    New-WebBinding -Name $WebsiteName -IPAddress "*" -Port 80 -Protocol http -HostHeader $HostHeader

    Write-Host Creating new https binding $HostHeader on $WebsiteName with certificate $CertCommonName
    New-WebBinding -Name $WebsiteName -IPAddress "*" -Port 443 -Protocol https -HostHeader $HostHeader -SslFlags 1

    $Thumbprint = (Get-ChildItem -Path cert:\LocalMachine\My | Where-Object {$_.GetNameInfo("SimpleName", $false) -eq $CertCommonName}).Thumbprint
    netsh http add sslcert hostnameport=$($HostHeader):443 certhash=$Thumbprint appid='{4dc3e181-e14b-4a21-b022-59fc669b0914}' certstorename=MY
}

CreateNewBindings -WebsiteName "My Website" -HostHeader "www.example.com" -CertCommonName "*.example.com"