Azure App Service error with Addressing on Health Check UI

[jameswoodley]

Please, fill the following sections to help us fix the issue

What happened: When deploying to an Azure App Service (running Linux), the UI will report "IPv4 address 0.0.0.0 and IPv6 address ::0 are unspecified addresses that cannot be used as a target address. (Parameter 'hostName') ([::]:8080)"

What you expected to happen: The UI reports a healthy service

How to reproduce it (as minimally and precisely as possible): Deploy to Azure App Service, using code below

Source code sample:

services.AddHealthChecks().AddNpgSql(configuration.GetConnectionString("Default") ?? throw new ArgumentNullException("Default ConnectionString not found", (Exception?)null));

services.AddHealthChecksUI(options =>
{
        options.SetEvaluationTimeInSeconds(10);
        options.MaximumHistoryEntriesPerEndpoint(60);
        options.SetApiMaxActiveRequests(1);
        options.AddHealthCheckEndpoint("Application Core", "/healthz");
}).AddInMemoryStorage();

Anything else we need to know?:

Environment:

• .NET Core version: 7
• Healthchecks version
  Npgsql: 7.1.0
  UI: 7.0.2
  UI.Client: 7.1.0
  UI.InMemoryStorage: 7.0.0
• Operative system: Linux
• Others: Azure App Service

[ahmed-abdelrazek]

same issue with .net 8 and AspNetCore.HealthChecks.UI" Version="8.0.0"

[ricardoschroeder]

Same here. Any updates?

[xDaevax]

Confirmed still an issue with .NET 8
Seems related to #410 when hosting in Azure App Service on Linux