bad-di.cs

using DockerizedFunc.FunctionApp;
using DockerizedFunc.Dependency;
using Microsoft.Azure.Functions.Extensions.DependencyInjection;
using Microsoft.Extensions.DependencyInjection;

[assembly: FunctionsStartup(typeof(Startup))]

namespace DockerizedFunc.FunctionApp
{
    public class Startup : FunctionsStartup
    {
        public override void Configure(IFunctionsHostBuilder builder)
        {
            builder.Services.AddSingleton<IAsyncGreeter, AsyncGreeter>();
        }
    }
}