How to run .Net 6 API with NGINX reverse proxy - asp.net-core

Question

I try to run a .Net 6 API with NGINX on a Raspberry PI 3B, according to this documentation:
https://learn.microsoft.com/en-us/aspnet/core/host-and-deploy/linux-nginx?view=aspnetcore-6.0
I configured my API as described in the article, the API is reachable under localhost.
I installed NGINX, the landing page is only locally reachable under http://192.168.178.51/index.nginx-debian.html not from other clients.
Also http://192.168.178.51/swagger does not work, nether locally or from clients.
One question for me is, where to locate the ForwardHeadersOptions?
app.UseForwardedHeaders(new ForwardedHeadersOptions
{
ForwardedHeaders = ForwardedHeaders.XForwardedFor | ForwardedHeaders.XForwardedProto
});
app.UseAuthentication();
The article says “Invoke the UseForwardedHeaders method at the top of Startup.Configure before calling other middleware.”
I have no Startup.Configure in my project. Does this description not fit for .Net 6?
This is my program.cs:
using Microsoft.AspNetCore.HttpOverrides;
var builder = WebApplication.CreateBuilder(args);
builder.Services.AddControllers();
builder.Services.AddEndpointsApiExplorer();
builder.Services.AddSwaggerGen();
var app = builder.Build();
app.UseSwagger();
app.UseSwaggerUI();
if (app.Environment.IsDevelopment())
{
app.UseHttpsRedirection();
}
app.UseForwardedHeaders(new ForwardedHeadersOptions
{
ForwardedHeaders = ForwardedHeaders.XForwardedFor | ForwardedHeaders.XForwardedProto
});
app.UseAuthentication();
app.UseAuthorization();
app.MapControllers();
app.Run();
Is it correct?
This is my default NGINX file:
server {
listen 80;
server_name test.abc *.test.abc;
location / {
proxy_pass http://127.0.0.1:5000;
proxy_http_version 1.1;
proxy_set_header Upgrade $http_upgrade;
proxy_set_header Connection keep-alive;
proxy_set_header Host $host;
proxy_cache_bypass $http_upgrade;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header X-Forwarded-Proto $scheme;
}
}
server {
listen 80 default_server;
# listen [::]:80 default_server deferred;
return 444;
}
Whats wrong in my configuration?
BTW: No access from the internet possible, currently I’ll run it only in my local network.
I posted a minimal project here: https://github.com/Christoph1972/API_NGINX_Demo

Answer 1

I got it.
server {
listen 80 default_server;
location / {
proxy_pass http://127.0.0.1:5000;
proxy_http_version 1.1;
proxy_set_header Upgrade $http_upgrade;
proxy_set_header Connection keep-alive;
proxy_set_header Host $host;
proxy_cache_bypass $http_upgrade;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header X-Forwarded-Proto $scheme;
}
}
Any doubts for this solution?
Next I’ll figure out how to create a server name for a private network, like test.abc.