Upgrading from 1.2.1 to 1.6.1 issues

[Kumanatsu]

Describe the problem/error/question

Everything working good in version 1.2.1
But I change docker image 1.6.1 I get error connection lost. I suppose I need to change something to the configuration. Any link or suggestions are appreciated. Thx

What is the error message (if any)?

Connection lost
Problem running workflow: lost connection to the server

Please share your workflow

n8n in a docker in swarm configuration, behind treafik reverse proxy. WEBHOOK_URL is set

(Select the nodes on your canvas and use the keyboard shortcuts CMD+C/CTRL+C and CMD+V/CTRL+V to copy and paste the workflow.)

Share the output returned by the last node

Information on your n8n setup

• n8n version:
  1.6.1 (1.2.1 working flowless)

• Database (default: SQLite):
  PostgreSQL

• n8n EXECUTIONS_PROCESS setting (default: own, main):
  Deprecated

• Running n8n via (Docker, npm, n8n cloud, desktop app):
  Docker

• Operating system:
  Debian 11

[EmeraldHerald]

Hi @Kumanatsu Welcome to the community

@Jon might be a better help on this one, but could you post your Docker compose file (with anything sensitive redacted)? That way we can look at your configuration a little more closely

Also just a thought, but have you exposed the following ports in your Docker compose file?

- "80:80"
- "443:443"

[Kumanatsu]

thanks for the fast reply, this is the working file for that i use in version 1.2.1 but doesn’t work with version 1.6.1

# DOMAIN=example.com docker stack deploy -c n8n.yml n8n
# DOMAIN=example.com VERSION=1.2.1 docker stack deploy -c n8n.yml n8n
# DOMAIN=example.com VERSION=1.6.1 docker stack deploy -c n8n.yml n8n

version: '3.8'

services:
  n8n:
    image: n8nio/n8n:${VERSION:-1.2.1}
    environment:
      - NODE_ENV=production
      - N8N_PROTOCOL=${SCHEME:-https}
      - N8N_HOST=${DOMAIN:-n8n.localhost}
      - WEBHOOK_URL=${SCHEME:-https}://${DOMAIN:-n8n.localhost}/
      - VUE_APP_URL_BASE_API=${SCHEME:-https}://${DOMAIN:-n8n.localhost}/
      - DB_TYPE=postgresdb
      - DB_POSTGRESDB_HOST=postgres
      - DB_POSTGRESDB_PORT=5432
      - DB_POSTGRESDB_DATABASE=${POSGRES_DATABASE:-n8n}
      - DB_POSTGRESDB_USER=${POSTGRES_USER:-n8n}
      - DB_POSTGRESDB_PASSWORD=${POSTGRES_PASSWORD:-myp@ssw0rd}
      - NODE_FUNCTION_ALLOW_EXTERNAL=${NODE_FUNCTION_ALLOW_EXTERNAL}
      - N8N_EMAIL_MODE=${N8N_EMAIL_MODE:-smtp}
      - N8N_SMTP_HOST=${SMTP_HOST}
      - N8N_SMTP_PORT-${SMTP_PORT:-584}
      - N8N_SMTP_USER=${SMTP_USER}
      - N8N_SMTP_PASS=${SMTP_PASSWORD}
      - N8N_SMTP_SENDER=${SMTP_FROM:[email protected]}
    volumes:
      - ${VOLUME_PATH}n8n:/home/node/.n8n
    deploy:
      labels:
        - traefik.enable=true
        - traefik.http.routers.n8n-${NUMBER:-1}.rule=Host(`${DOMAIN:-n8n.localhost}`)
        - traefik.http.routers.n8n-${NUMBER:-1}.entrypoints=${SCHEME:-https}
        - traefik.http.routers.n8n-${NUMBER:-1}.service=n8n-${NUMBER:-1}
        - traefik.http.routers.n8n-${NUMBER:-1}.tls.certresolver=letsencrypt
        - traefik.http.routers.n8n-${NUMBER:-1}.middlewares=n8n-${NUMBER:-1}
        - traefik.http.services.n8n-${NUMBER:-1}.loadbalancer.server.port=5678
        - traefik.http.middlewares.n8n-${NUMBER:-1}.headers.customResponseHeaders.Access-Control-Allow-Origin=*
        - traefik.http.middlewares.n8n-${NUMBER:-1}.headers.customResponseHeaders.Access-Control-Allow-Headers=Content-Type
    networks:
      - traefik
      - internal

  postgres:
    image: postgres:${POSTGRES_VERSION:-12-alpine}
    environment:
      - POSTGRES_DB=n8n
      - POSTGRES_USER=n8n
      - POSTGRES_PASSWORD=myp@ssw0rd
    healthcheck:
      test: ["CMD", "pg_isready", "-U", "n8n"]
    volumes:
      - ${VOLUME_PATH}postgres:/var/lib/postgresql/data
    networks:
      - internal

volumes:
  n8n:
  postgres:

networks:
  internal:
    driver: overlay
    attachable: true
  traefik:
    external: true
    name: traefik-net

this is the traefik.yml

version: '3.8'

services:
  traefik:
    image: traefik:${VERSION:-v2.10.3}
    command:
      # - --log.level=DEBUG
      - --providers.docker
      - --providers.docker.network=traefik-net
      - --providers.docker.exposedByDefault=false
      - --providers.docker.swarmMode=true
      - --providers.docker.endpoint=unix:///var/run/docker.sock
      - --entrypoints.http.address=:80
      - --entrypoints.https.address=:443
      - --entryPoints.http.proxyProtocol.trustedIPs=${TRUSTED_IPS:-127.0.0.1}
      - --entryPoints.http.forwardedHeaders.trustedIPs=${TRUSTED_IPS:-127.0.0.1}
      - --entryPoints.https.proxyProtocol.trustedIPs=${TRUSTED_IPS:-127.0.0.1}
      - --entryPoints.https.forwardedHeaders.trustedIPs=${TRUSTED_IPS:-127.0.0.1}
      - --entrypoints.http.http.redirections.entryPoint.to=https
      - --entrypoints.http.http.redirections.entryPoint.scheme=https
      - --entrypoints.http.http.redirections.entrypoint.permanent=true
      - --certificatesresolvers.letsencrypt.acme.tlschallenge=true
      - --certificatesresolvers.letsencrypt.acme.email=${ACME_EMAIL:[email protected]}
      - --certificatesresolvers.letsencrypt.acme.storage=/letsencrypt/acme.json
    volumes:
      - ${VOLUME_PATH}letsencrypt:/letsencrypt
      - /var/run/docker.sock:/var/run/docker.sock:ro
    ports:
      - {target: 80, published: 80, mode: host, protocol: tcp}
      - {target: 443, published: 443, mode: host, protocol: tcp}
    deploy:
      mode: ${MODE:-replicated}

volumes:
  letsencrypt:

networks:
  default:
    external: true
    name: traefik-net

[Jon]

Hey @Kumanatsu,

It sounds like it could be a websockets issue but I would expect to see that on 1.2.1 as well As a test could you set N8N_PUSH_BACKEND to sse and let me know if that helps?