How to add steeltoe configserver configuration in .net 6.0

Question

Recently we migrated .net3.1 to .net6.0 with minmal hosting model. Steeltoe configuration is not loading after migration, but the same is working in .netcore 3.1. code: builder.ConfigureAppConfiguration((hostContext, configApp) => { configApp.AddConfigServer(); })

app is deployed in azure Error we are getting as

Application: w3wp.exe

CoreCLR Version: 6.0.322.12309 .NET Version: 6.0.3 Description: The process was terminated due to an unhandled exception. Exception Info: Steeltoe.Extensions.Configuration.ConfigServer.ConfigServerException: Could not locate PropertySource, fail fast property is set, failing ---> System.Net.Http.HttpRequestException: An attempt was made to access a socket in a way forbidden by its access permissions. (localhost:8888) ---> System.Net.Sockets.SocketException (10013): An attempt was made to access a socket in a way forbidden by its access permissions. at System.Net.Sockets.Socket.AwaitableSocketAsyncEventArgs.ThrowException(SocketError error, CancellationToken cancellationToken) at

Answer 1

Check your settings for the config server address and the order your config providers are added. The message you're seeing is a failure to connect to localhost on port 8888. Unless you're running the config server on the same machine as your app in Azure, there's a misconfiguration.

I can't tell which builder you're configuring, but Steeltoe 3.1.3 in a .NET 6 minimal API project connects fine to a config server running on localhost with this example: .csproj:

<Project Sdk="Microsoft.NET.Sdk.Web">

  <PropertyGroup>
    <TargetFramework>net6.0</TargetFramework>
    <Nullable>enable</Nullable>
    <ImplicitUsings>enable</ImplicitUsings>
  </PropertyGroup>

  <ItemGroup>
    <PackageReference Include="Steeltoe.Extensions.Configuration.ConfigServerCore" Version="3.1.3" />
  </ItemGroup>
</Project>

appsettings.json:

{
  "Spring": { "Cloud": { "Config": { "FailFast": true } } }
}

program.cs:

using Steeltoe.Extensions.Configuration.ConfigServer;

var builder = WebApplication.CreateBuilder(args);
builder.Configuration.AddConfigServer();
builder.Services.AddRazorPages();

var app = builder.Build();
if (!app.Environment.IsDevelopment())
{
    app.UseExceptionHandler("/Error");
    app.UseHsts();
}

app.UseHttpsRedirection();
app.UseStaticFiles();
app.UseRouting();
app.UseAuthorization();
app.MapRazorPages();
app.Run();