Hello there, I'm trying to use an

IServiceProvider

with Pulumi in .NET as documented here. However, I'm getting an error of

System.ApplicationException: Failed to resolve instance of type MyStack from service provider.

As far as I am aware I have configured the stack in my service provider but I cannot work out how to solve this error. Looking at the source code it seems like it should work. My entry point for the application is simply

static Task Main()
    {
        var serviceCollection = new ServiceCollection();
        var serviceProvider = serviceCollection
            .AddSingleton<Stack, MyStack>()
            .BuildServiceProvider();

        return Deployment.RunAsync<MyStack>(serviceProvider);
    }

And my Pulumi Stack

class MyStack : Stack
{
    public MyStack(System.IServiceProvider provider)
    {

    }
}

A trivially simple application, but I've had the same issue on the main application I'm building. Am I doing something wrong with my use of the

IServiceProvider

? It's not specified in the docs so I am not sure. Any help is greatly appreciated. Thank you.

Hey, your

Main()

method should look like this:

static Task Main()
    {
        var serviceCollection = new ServiceCollection();
        var serviceProvider = serviceCollection
                                .AddSingleton<MyStack>()
                                .BuildServiceProvider();

        return Deployment.RunAsync<MyStack>(serviceProvider);
    }

So you're not registering

Stack

in thesingleton, just

MyStack

^. The

Deployment

is trying to resolve for

MyStack

which you provided via

RunAsync<MyStack>

but you only have it registered as

Stack

also make sure your Main returns

Task<int>

or you can get into some trouble if your stack throws any exceptions: https://github.com/pulumi/pulumi/issues/7050#issuecomment-851580328

I'm running a console app but with multiple passes for preview then update. Use a transient lifetime. https://github.com/gitfool/Pulumi.Dungeon/blob/master/Cli/HostBuilderExtensions.cs#L43

@brave-planet-10645 Thank you so much! That worked perfectly.