NS_ERROR_REDIRECT_LOOP with caddy and nginx in docker container

Question

I am strugling with my Configuration for a while now and i always get the Redirect Loop error in Browser. I am running Caddy in docker and an Angular Application with the nginx image also in Docker. When i am calling my URL in the Browser i get the to many redirects error, i am getting redirected from https to http and back to https until i get the NS_ERROR_REDIRECT_LOOP.

What am i doing wrong?

Caddyfile:

hotel.luluflu.com {
    reverse_proxy hotel-client:80
}

nginx.conf:

events {
    worker_connections  1024;
}
http {
    include /etc/nginx/mime.types;
    server {
        client_max_body_size 128M;
        listen 80 default_server;
        server_name ${HOTEL_CLIENT_NAME}
        listen [::]:80 default_server;
        root   /usr/share/nginx/html;
        location /api {
            proxy_pass ${HOTEL_CLIENT_SERVER_URL};
        }
        location / {
             try_files $uri $uri/ /index.html;
          }

    }
}

Setup:

caddy version 2.7
Nginx Version: 1.27.3

Browser log:

I hope anybody can help, btw, i can ping the client container from caddy container.

From what I see at your screenshot, it is your Caddy server redirecting you from https://hotel.luluflu.com to http://hotel.luluflu.com. — Ivan Shatsky
– Ivan Shatsky, Commented Jan 3 at 11:00
Hi Ivan, thanks for the input. I guess thats what is happening. I just ran whoami container and it works fine with same configuration. — Morty
– Morty, Commented Jan 3 at 11:23

Morty · Accepted Answer · 2025-01-09 10:43:10Z

0

If anybody has this problem, i could fix it by deleting a container that was interfering with the Proxy. It was the same container but with a different name, that i forgot it was still there. After i deleted this container the proxy forwarded my request to the correct container only and it works fine.

answered Jan 9 at 10:43

Morty

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