Use Powershell to Create IIS Rule to Rewrite HTTP to HTTPS

IIS-RewriteHttpToHttps.ps1

    Import-module IISAdministration; 
    New-IISSite -Name "[YourSiteName]" -PhysicalPath C:\app -BindingInformation "*:81:"; 
    # Download the IIS url-rewrite module
    Invoke-WebRequest http://download.microsoft.com/download/D/D/E/DDE57C26-C62C-4C59-A1BB-31D58B36ADA2/rewrite_amd64_en-US.msi -UseBasicParsing -OutFile C:/app/rewrite.msi; 
    Start-Process msiexec -ArgumentList '/i C:\app\rewrite.msi /qn' -Wait; 
    rm C:\app\rewrite.msi; 

    # Produce a rule that looks like this:
    # <rewrite> 
    # <rules> 
    # <rule name="Rewrite HTTP to HTTPS” stopProcessing=”true”> 
    # <match url="^(.*)$" /> 
    # <conditions logicalGrouping=”MatchAny”> 
    # <add input="{HTTP_X_FORWARDED_PROTO}" pattern="^http$" />
    # </conditions> 
    # <action type="Redirect" url="https://{HTTP_HOST}{REQUEST_URI}" /> 
    # </rule> 
    # </rules> 
    # </rewrite>

    $name = 'Rewrite HTTP to HTTPS'; 
    $inbound = '^(.*)$'; 
    $outbound = 'https://{HTTP_HOST}{REQUEST_URI}'; 
    $pattern = '^http$'; 
    $site = 'IIS:\Sites\[YourSiteName]';
    $root = 'system.webServer/rewrite/rules'; 
    $filter = '{0}/rule[@name=''{1}'']' -f $root, $name; 

    Add-WebConfigurationProperty -PSPath $site -filter $root -name '.' -value @{name=$name; patternSyntax='Regular Expressions'; stopProcessing='False'}; 
    Set-WebConfigurationProperty -PSPath $site -filter "$filter/match" -name 'url' -value $inbound; 
    Set-WebConfigurationProperty -PSPath $site -filter "$filter/conditions" -name '.' -value @{input='{HTTP_X_FORWARDED_PROTO}'; matchType='0'; pattern=$pattern; ignoreCase='True'; negate='False'}; 
    Set-WebConfigurationProperty -PSPath $site -filter "$filter/action" -name 'type' -value 'Redirect'; 
    Set-WebConfigurationProperty -PSPath $site -filter "$filter/action" -name 'url' -value $outbound;