Exception happens when trying to access swaggerui running in docker

[vorrtas]

I think i can't use swagger inside docker or maybe i'm doing something wrong

Context:
Dockerimage: mcr.microsoft.com/dotnet/aspnet:6.0.10-alpine3.16-amd64

Relevant swagger config:

services.AddSwaggerDoc(settings =>
        {
            settings.DocumentName = configuration.GetValue<string>("SWAGGER:DOCUMENT_NAME");
            settings.Title = configuration.GetValue<string>("SWAGGER:TITLE");
            settings.Version = configuration.GetValue<string>("SWAGGER:VERSION");
            settings.Description = configuration.GetValue<string>("SWAGGER:DESCRIPTION");
        }, shortSchemaNames: true);

...
        app.UseOpenApi();
        app.UseSwaggerUi3(s =>
            s.ConfigureDefaults()
        );

Error message:
System.TypeInitializationException: The type initializer for 'FastEndpoints.Swagger.OperationProcessor' threw an exception.
---> System.Globalization.CultureNotFoundException: Only the invariant culture is supported in globalization-invariant mode. See https://aka.ms/GlobalizationInvariantMode for more information. (Parameter 'name')
en-US is an invalid culture identifier.
at System.Globalization.CultureInfo..ctor(String name, Boolean useUserOverride)
at FastEndpoints.Swagger.OperationProcessor..cctor()
--- End of inner exception stack trace ---
at FastEndpoints.Swagger.OperationProcessor.Process(OperationProcessorContext ctx)
at NSwag.Generation.AspNetCore.AspNetCoreOpenApiDocumentGenerator.RunOperationProcessors(OpenApiDocument document, ApiDescription apiDescription, Type controllerType, MethodInfo methodInfo, OpenApiOperationDescription operationDescription, List`1 allOperations, OpenApiDocumentGenerator swaggerGenerator, OpenApiSchemaResolver schemaResolver)

I think it is because

https://github.com/FastEndpoints/FastEndpoints/blob/main/Src/Swagger/OperationProcessor.cs#L19
I'm not sure if we could replace it by something like:

private static readonly TextInfo textInfo = CultureInfo.Invariant.TextInfo;
// or if we need a copy
private static readonly TextInfo textInfo = (TextInfo)CultureInfo.Invariant.TextInfo.Clone();

Maybe it would help but I'm not certain. It might be a breaking change I'm not fammiliar with nswag library.

[dj-nitehawk]

fixed in v5.3.1.2-beta
thanks for reporting.