bug: Fix App Service runtime error for missing configuration: EntraExternalId:Instance

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Summary

OptionsValidationException: Configuration value 'EntraExternalId:Instance' must be an absolute URL.

Expected Behavior

Web site runs as in localhost

Actual Behavior

An error occurred while starting the application.
OptionsValidationException: Configuration value 'EntraExternalId:Instance' must be an absolute URL.
Microsoft.Extensions.Options.OptionsFactory.Create(string name)

OptionsValidationException: Configuration value 'EntraExternalId:Instance' must be an absolute URL.
Microsoft.Extensions.Options.OptionsFactory.Create(string name)
Microsoft.Extensions.Options.OptionsMonitor+<>c.b__10_0(string name, IOptionsFactory factory)
Microsoft.Extensions.Options.OptionsCache+<>c__DisplayClass3_1.b__2()
System.Lazy.ViaFactory(LazyThreadSafetyMode mode)
System.Lazy.ExecutionAndPublication(LazyHelper executionAndPublication, bool useDefaultConstructor)
System.Lazy.CreateValue()
System.Lazy.get_Value()
Microsoft.Extensions.Options.OptionsCache.GetOrAdd(string name, Func<string, TArg, TOptions> createOptions, TArg factoryArgument)
Microsoft.Extensions.Options.OptionsMonitor.Get(string name)
Microsoft.Extensions.DependencyInjection.OptionsBuilderExtensions+<>c__DisplayClass0_1.b__1()
Microsoft.Extensions.Options.StartupValidator.Validate()
Microsoft.Extensions.Options.StartupValidator.Validate()
Microsoft.Extensions.Hosting.Internal.Host.StartAsync(CancellationToken cancellationToken)
Microsoft.Extensions.Hosting.Internal.Host.g__LogAndRethrow|14_3(ref <>c__DisplayClass14_0 )
Microsoft.Extensions.Hosting.Internal.Host.StartAsync(CancellationToken cancellationToken)
Microsoft.Extensions.Hosting.HostingAbstractionsHostExtensions.RunAsync(IHost host, CancellationToken token)
Microsoft.Extensions.Hosting.HostingAbstractionsHostExtensions.RunAsync(IHost host, CancellationToken token)
Microsoft.Extensions.Hosting.HostingAbstractionsHostExtensions.Run(IHost host)
Microsoft.AspNetCore.Builder.WebApplication.Run(string url)
Program.

$(string[] args) in Program.cs

Show raw exception details
.NET 10.0.10 X86 v10.0.0.0 | Microsoft.AspNetCore.Hosting version 10.0.10+f7d90799ce4ef09a0bb257852a57248d2a8fb8dd | Microsoft Windows 10.0.20348 | Need help?

Steps To Reproduce

1. https://agent-dev-wus2-001-web.azurewebsites.net/
2. See rror

Impact

Dev unavailabalbe

Logs / Screenshots / Output

No response

Suspected Area

No response