An example of checking license expiry before starting Sitecore docker containers

up.ps1

Param(
    [switch]$build = $false,
    [switch]$attach = $false
)

function Validate-LicenseData
{
    Param (
        $EnvironmentFile = ".env",
        $EnvironmentKey = "SITECORE_LICENSE"
    )

    $file = Get-Content $EnvironmentFile -Encoding UTF8

    $key = $file | ForEach-Object {
        if($_ -imatch "^$EnvironmentKey=.*")
        {
            return $_.SubString($EnvironmentKey.Length + 1)
        }
    }
    
    $data = [System.Convert]::FromBase64String($key)

    $memory = [System.IO.MemoryStream]::new()
    $memory.Write($data, 0, $data.Length)
    $memory.Flush()   
    $memory.Seek(0, [System.IO.SeekOrigin]::Begin) | Out-Null

    $gzip = [System.IO.Compression.GZipStream]::new($memory, [System.IO.Compression.CompressionMode]::Decompress)
    
    $s = [System.IO.StreamReader]::new($gzip);
    $xml = $s.ReadToEnd()   

    $s.Dispose();
    $gzip.Dispose()
    $memory.Dispose();

    $xml -match '<expiration>(.*?)</expiration>' | Out-Null
    $textExpiry = $Matches[1]

    $expiry = [System.DateTime]::ParseExact($textExpiry, "yyyyMMddThhmmss", [System.Globalization.CultureInfo]::InvariantCulture)

    if($expiry -lt [System.DateTime]::Now)
    {
        throw "Your Sitecore license has expired."
    }
    else
    {
        $daysLeft = [int]($expiry - [System.DateTime]::Now).TotalDays
        Write-Host "You have $daysLeft days left on your license." -ForegroundColor Green
    }
}

try
{
	pushd ".\docker"

	Validate-LicenseData

	$buildFlag = ""
	if($build)
	{
		$buildFlag = "--build"
	}

	Write-Host "Starting: XP=$xp, Build=$build, Attach=$attach"

	$detachFlag = "--detach"
	if($attach)
	{
		$detachFlag = ""
	}

	docker-compose up $buildFlag $detachFlag
}
finally
{
	popd
}