1. In Visual Studio Code, open the televisionShow folder that you extracted from ch9-start.zip and have been working on in the previous recipes of this chapter.
2. Press Ctrl + Shift + B to build the Television Show application. Take note of the folder location of the application file.
3. Open the PowerShell ISE and create a new script.
4. Enter the following code:

$containerName = '<yourContainer>'
$applicationFileFolder = '<yourAppFileFolder>'
$certificatePassword = '<yourCertifictePassword>'
$certificateFile = '<yourCertificateFile>'

Get-ChildItem -Path $applicationFileFolder -Filter '*.app' | ForEach-Object {
    $containerAppFile = 
    "C:ProgramDataNavContainerHelperExtensions
    $containerNamemy$($_.Name)"
    
    Copy-Item -Path $_.FullName -Destination $containerAppFile -
    Force
      
    Sign-NavContainerApp -appFile $containerAppFile `
         -containerName $containerName `
         -pfxFile $certificateFile `
         -pfxPassword $(ConvertTo-SecureString -String 
         $certificatePassword -AsPlainText -Force)
}

In the previous code, make sure you populate the correct values for the following variables:

• containerName: The name of the container that you created as your AL sandbox
• applicationFileFolder: The folder in which your application file exists (for example, C: emp)
• certificatePassword: The password for the certificate you are using
• certificateFile: The full path to the pfx code signing certificate (for example, C: empcertificate.pfx)

5. Save the script as SignAppFile.ps1.
6. Run the PowerShell script. You should see a message like this when the application has been successfully signed: