ASP.NET Core app in docker container not accessible

I have an ASP.NET Core web app that sends signal through can bus on Raspberry Pi. When I run the app throught dotnet run it runs flawlessly. I had to dockerize, and in order to have access to can bus I have to start the container with network=host parameter. Thing is, the app is supposed to start on certain port (8080 in this case). When I run it on my PC, with network=host, it's fine. But when I run it on Raspberry Pi, I get error that connection is refused in the browser, even though app logs in container say it starts on port 8080. Is there anything specific in Raspberry configuration that can prevents the app from being accessible?

Here's the dockerfile:

# Stage 1: Build React App
FROM node:20 AS build-frontend
WORKDIR /app
COPY ClientApp/package*.json ./
RUN npm install
COPY ClientApp/ ./
RUN npm run build

# Stage 2: Build ASP.NET backend
FROM mcr.microsoft.com/dotnet/sdk:8.0 AS build-backend
WORKDIR /src
COPY . .
RUN dotnet publish -c Release -o /app/publish

# Stage 3: Combine frontend and backend
FROM mcr.microsoft.com/dotnet/aspnet:8.0 AS final
WORKDIR /app
COPY --from=build-backend /app/publish .
COPY --from=build-frontend /app/dist ./ClientApp
ENV ASPNETCORE_URLS=http://0.0.0.0:8080
ENV ASPNETCORE_ENVIRONMENT=Production
EXPOSE 8080
ENTRYPOINT ["dotnet", "ReefWebApp.dll"]

Here's the program.cs, if it makes any difference:

using Microsoft.AspNetCore.Builder;

var builder = WebApplication.CreateBuilder(args);

if (builder.Environment.IsProduction())
{
    builder.Services.AddSpaStaticFiles(configuration =>
    {
        configuration.RootPath = "ClientApp";
    });
}

builder.Logging.AddConsole();
builder.Services.AddControllers();
builder.Services.AddEndpointsApiExplorer();
builder.Services.AddSwaggerGen();

builder.Services.AddScoped<ICanBusService, CanBusService>();

var app = builder.Build();

if (app.Environment.IsDevelopment())
{
    app.UseSwagger();
    app.UseSwaggerUI();
}

if (!app.Environment.IsProduction())
{
    app.UseHttpsRedirection();
}

app.UseRouting();

app.UseAuthorization();

#pragma warning disable ASP0014 // Suggest using top level route registrations
app.UseEndpoints(endpoints =>
{
    endpoints.MapControllerRoute(name: "default", pattern: "{controller}/{action=Index}/{id?}");
});
#pragma warning restore ASP0014 // Suggest using top level route registrations

if (builder.Environment.IsProduction())
{
    app.UseSpaStaticFiles();
}

app.UseSpa(spa =>
{
    spa.Options.SourcePath = "ClientApp";

    if (app.Environment.IsDevelopment())
    {
        spa.UseProxyToSpaDevelopmentServer("http://localhost:5173");
    }
});

app.Run();