I cannot get n8n to work on my server. I got this websocket error message in console

[gthell]

Describe the problem/error/question

I cannot get n8n to work on my server. I setup using nginx proxy manager and a docker swarm compose

What is the error message (if any)?

From console log
WebSocket connection to 'wss://n8n.dev.mydomain.xyz/rest/push?pushRef=hvrtbju7i2' failed:

Please share your workflow

Share the output returned by the last node

My docker compose

version: "3.8"

services:
  n8n:
    image: docker.n8n.io/n8nio/n8n
    restart: unless-stopped
    ports:
      - target: 5678
        published: 5678
    environment:
      - N8N_HOST=n8n.dev.mydomain.xyz
      - N8N_PORT=5678
      - N8N_PROTOCOL=http
      - N8N_BASIC_AUTH_ACTIVE=true
      - WEBHOOK_URL=https://n8n.dev.mydomain.xyz:5678
    networks:
      - proxy
    volumes:
      - n8n_data:/home/node/.n8n
    deploy:
      replicas: 1
      resources:
        limits:
          cpus: '0.50'
          memory: 220M

networks:
  proxy:
    external: true

volumes:
  n8n_data:

Information on your n8n setup

• n8n version: n8n:latest
• Database (default: SQLite): default
• n8n EXECUTIONS_PROCESS setting (default: own, main):
• Running n8n via (Docker, npm, n8n cloud, desktop app): docker
• Operating system: ubuntu

[Ruslan_Yanyshyn]

@gthell

WEBHOOK_URL=https://n8n.dev.mydomain.xyz:5678

You don’t need :5678 if you use NPM you’ve probably already added it there.

[gthell]

Well I removed it. The main problem is still lying between npm and n8n wss websocket. What is the setup suppose to be?

[Exnav29]

In your NGINX Proxy Manager Settings does your n8n proxy host (n8n.dev.mydomain.xyz) ‘Advanced’ section have this:

proxy_set_header Upgrade $http_upgrade;
proxy_set_header Connection "Upgrade";
proxy_http_version 1.1;
proxy_set_header Host $host;

If not then add it and then Save and Restart NGINX Proxy Manager.

[Ruslan_Yanyshyn]

@gthell

WebSocket connection to ‘wss://n8n.dev.mydomain.xyz/rest/push?pushRef=hvrtbju7i2’ failed:

I there a reason you are using networks:

   proxy:
    external: true

If there misconfiguration it could be a reason.

[gthell]

Doesn’t help.

I just remove nginx proxy manager and use traefik instead to avoid all these headace no solutions problem.