Jupyterhub can´t deploy with Configurable http Proxy and docker compose

Hello Guys,

I am facing a problem with my Deoployment of proxy using docker-compose.yml.

services:

proxy:
image: jupyterhub/configurable-http-proxy:4

command:
  - configurable-http-proxy
  - "--ip"
  - "my public ipv4"
  - "--port"
  - "80"
  - "--api-ip"
  - "10.0.1.4"
  - "--api-port"
  - "8081"
  - "--default-target"
  - "http://10.0.1.8:8001"
  - "--error-target"
  - "http://hub/hub/error"

ports:
  - "80:8081"
volumes:
  - /var/run/docker.sock:/var/run/docker.sock
  #- ./reverse-proxy/traefik.toml:/etc/traefik/traefik.toml
  - /etc/letsencrypt/live/mydomain:/etc/certs

environment:
  CONFIGPROXY_AUTH_TOKEN: "CONFIGPROXY_AUTH_TOKEN"

deploy:
  placement:
    constraints:
      - node.id == xxxx

And I hot following errors:

[+] Running 3/3
:heavy_check_mark: Network jupyter-dhbw_default Created 0.1s
:heavy_check_mark: Container jupyter-dhbw-jupyterhub-1 Created 0.5s
:heavy_check_mark: Container jupyter-dhbw-proxy-1 Created 0.5s
Attaching to jupyterhub-1, proxy-1
proxy-1 | 10:37:53.186 [ConfigProxy] info: Adding route / → http://10.0.1.8:8001
proxy-1 | 10:37:53.192 [ConfigProxy] info: Proxying http://my.public.ipv.4:80 to http://10.0.1.8:8001
proxy-1 | 10:37:53.193 [ConfigProxy] info: Proxy API at http://10.0.1.4:8081/api/routes
proxy-1 | 10:37:53.196 [ConfigProxy] error: Uncaught Exception: listen EADDRNOTAVAIL: address not available my.public.ipv.4:80
proxy-1 | 10:37:53.197 [ConfigProxy] error: Error: listen EADDRNOTAVAIL: address not available my.public.ipv.4:80
proxy-1 | at Server.setupListenHandle [as _listen2] (node:net:1855:21)
proxy-1 | at listenInCluster (node:net:1920:12)
proxy-1 | at doListen (node:net:2069:7)
proxy-1 | at process.processTicksAndRejections (node:internal/process/task_queues:83:21)
proxy-1 | 10:37:53.197 [ConfigProxy] error: Uncaught Exception: listen EADDRNOTAVAIL: address not available 10.0.1.4:8081
proxy-1 | 10:37:53.198 [ConfigProxy] error: Error: listen EADDRNOTAVAIL: address not available 10.0.1.4:8081
proxy-1 | at Server.setupListenHandle [as _listen2] (node:net:1855:21)
proxy-1 | at listenInCluster (node:net:1920:12)
proxy-1 | at doListen (node:net:2069:7)
proxy-1 | at process.processTicksAndRejections (node:internal/process/task_queues:83:21)
proxy-1 | 10:37:53.199 [ConfigProxy] info: Route added / → http://10.0.1.8:8001
proxy-1 exited with code 0

This means that something else is using that port. You can only have one application using port 80.

Thank you for your reply. If something is using it, it will say adress in used. This error means this doesnt exist? I dont know. : )

The Problem is solved.
I found that, you dont have to specify the public IP Adress.
Docker compose method just deploy it automatically on the Public Ip Adress.