C
C#•3d ago
jiheielf

Worker Service .NET8 how to gracefully shutdown as a docker container

I'm a junior developer just starting to work with Docker, and I have a question regarding graceful shutdown of the worker services. I created a default worker service in Visual Studio, and my Worker class looks something like this: 
protected override async Task ExecuteAsync(CancellationToken stoppingToken)
{
  while (!stoppingToken.IsCancellationRequested)
  {
    // Do some async work
    await myAsyncWork();
    await mySecondAsyncWork();
    await Task.Delay(1000, stoppingToken);
  }
}
protected override async Task ExecuteAsync(CancellationToken stoppingToken)
{
  while (!stoppingToken.IsCancellationRequested)
  {
    // Do some async work
    await myAsyncWork();
    await mySecondAsyncWork();
    await Task.Delay(1000, stoppingToken);
  }
}
After publishing the application as a Docker container, I noticed that when I run docker stop, it immediately aborts my async task inside await myAsyncWork(); or await mySecondAsyncWork();. Is there a way to ensure that when I run docker stop, the application finishes the current async task and finishes the current iteration of while (!stoppingToken.IsCancellationRequested) and then gracefully shuts down? And is there any best practise I should follow?
4 Replies
Sossenbinder
Sossenbinder•3d ago
Sounds like you're looking for IApplicationLifetime Let me try to find a resource
Sossenbinder
Sossenbinder•3d ago
https://andrewlock.net/introducing-ihostlifetime-and-untangling-the-generic-host-startup-interactions/
Andrew Lock | .NET Escapades
Introducing IHostLifetime and untangling the Generic Host startup i...
In this post I introduce the new IHostLifetime interface and look at the interactions involved in the ASP.NET Core generic host startup and shutdown processes
Sossenbinder
Sossenbinder•3d ago
Ah, right, it was renamed to IHostLifetime I think the best ideal solution would be to design the app in a way which is not dependant on clean shutdown, which can't be guaranteed if there's some higher forces like power outage
Unknown User
Unknown User•3d ago
Message Not Public
Sign In & Join Server To View

Did you find this page helpful?