c# - Swagger UI not loaded in Docker

Question

I have an issue with Docker Containers.

I am working on an Web Service targeting ASP.Net Core v.3.1 and it has JWT authentization. My web service works perfectly in IIS but when i build the image and run in on docker , docker can not load the index.html of Swagger. The Startup code:

public class Startup
{
    public Startup(IConfiguration configuration)
    {
        Configuration = configuration;
    }

    public IConfiguration Configuration { get; }

    // This method gets called by the runtime. Use this method to add services to the container.
    public void ConfigureServices(IServiceCollection services)
    {
        services.AddControllers();
        //httpClient
        services.AddHttpClient("httpClient");

        //Add services
        services.AddScoped<IAuthRepository, AuthRepository>();
        services.AddScoped<IgenesysToken, ApiToken>();
        services.AddScoped<ICrmControllerService, CControllerService>();
        services.AddSingleton<ILoggerManager, LoggerManager>();
        services.AddScoped<IGenesysControllerServices, ApiControllerService>();

        //adding User from appsettings.json lsit
        List<User> users = new List< User>();
        Configuration.GetSection(nameof(User)).Bind(users);
        services.AddSingleton(users);

        services.AddMvc()
             .AddJsonOptions(options =>
             {
                  options.JsonSerializerOptions.WriteIndented = true;
            });
        //add Memory cache
        services.AddDistributedMemoryCache();

        services.AddSession(options =>
        {
            //86399 second same as genesys app send the expire time of token.
            options.IdleTimeout = TimeSpan.FromSeconds(86399);
            options.Cookie.HttpOnly = true;
            options.Cookie.IsEssential = true;
        });


        //swagger configuration
        services.AddSwaggerGen(opsions=>
        {
            opsions.SwaggerDoc("V1",
               new Microsoft.OpenApi.Models.OpenApiInfo
               {
                   Title = "My API",
                   Description = "My API comunication with RBAL",
                   Version = "V1"

               });
            var fileName = $"{Assembly.GetExecutingAssembly().GetName().Name}.Xml";
            var filePath = Path.Combine(AppContext.BaseDirectory, fileName);
            opsions.IncludeXmlComments(filePath);

            opsions.AddSecurityDefinition("bearer", new Microsoft.OpenApi.Models.OpenApiSecurityScheme
            {
                In = ParameterLocation.Header,
                Description = "Authorization header using the Bearer scheme. Example:"Authorization: bearer {token}"",
                Name= "Authorization",
                Type= SecuritySchemeType.ApiKey,
                BearerFormat = "JWT",
            });

            var securityRequirement = new OpenApiSecurityRequirement
            {
                {
                    new OpenApiSecurityScheme
                    {
                        Reference = new OpenApiReference
                        {
                            Type=ReferenceType.SecurityScheme,
                            Id="bearer"
                        },
                       
                    },
                     new string[]{}
                }
            };
            opsions.AddSecurityRequirement(securityRequirement);

        });

        //Jwt configuration
        services.AddAuthentication(JwtBearerDefaults.AuthenticationScheme)
        .AddJwtBearer(options =>
        {
            options.RequireHttpsMetadata = false;
            options.SaveToken = true;
            options.TokenValidationParameters = new TokenValidationParameters
            {
                ValidateIssuer = true,
                ValidateAudience = true,
                ValidateLifetime = true,
                ValidateIssuerSigningKey = true,
                ValidIssuer = Configuration["Jwt:Issuer"], // Issuer value at json
                ValidAudience = Configuration["Jwt:Audience"],  // audience isue at json
                IssuerSigningKey = new SymmetricSecurityKey(Encoding.UTF8.GetBytes(Configuration["Jwt:SecretKey"])),
                ClockSkew = TimeSpan.Zero
            };

        });
        // adding Pilicy admin rights 
        services.AddAuthorization(config =>
        {
            config.AddPolicy(Policies.Admin, Policies.AdminPolicy());
            config.AddPolicy(Policies.User, Policies.UserPolicy());
        });

    }
   
    // This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
    public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
    {
        if (env.IsDevelopment())
        {
            app.UseDeveloperExceptionPage();
        }

        app.UseHttpsRedirection();

        app.UseRouting();

        app.UseAuthentication();

        app.UseAuthorization();
        app.UseSession();
        app.UseEndpoints(endpoints =>
        {
            endpoints.MapControllers();
        });

     

        // add swager middleware 
        app.UseSwagger();

       
        app.UseSwaggerUI(options =>
        {
            options.SwaggerEndpoint("/swagger/V1/swagger.json", "API");
            //set swaggger as start up page ... 
            options.RoutePrefix = "";
        });

       
    }
}
       

Answer 1

等待大神答复