How to write a script to start a Docker container and stop WSL safely when the container stops?

ooker 

I can't tell you what to look for with Docker, as I don't use it.

The best I can do is provide you with a hypothetical example for a scenario where the first program you start with Start-Process (in your case, this is Docker Desktop) then starts another child process of its own, indicating it's operational.

Because I don't use Docker, I have to use other programs in the example. Here's a table that translates what I'm using for illustrative purposes to what you would use.

Example

# Launch the "main" process.
$Process = Start-Process -FilePath "cmd.exe" -PassThru -ErrorAction:Stop;

# Monitor for a specific child process being launched by the main process.
$CheckAgain = $true;
$Retries = 10;

while ($CheckAgain -and ($Retries -gt 0))
{
    if (Get-CimInstance -ClassName "Win32_Process" -Filter "ParentProcessID=$($Process.Id) AND Name='notepad.exe'")
    {
        $CheckAgain = $false;
    }
    else
    {
        $Retries--;
        Start-Sleep -Seconds 2;
    }
}

Here, we're checking for a maximum of 20 seconds ([10 retries] x [two second sleep] to see if the child process has started. If it starts earlier, then the loop will exit earlier.

But again, this is hypothetical and may not be useful for your Docker scenario at all. You'd have to do some investigating to see how Docker behaves before you can solve your challenge.

Cheers,

Lain