version: '3.8'

services:
  n8n:
    image: n8nio/n8n:1.105.2
    container_name: n8n
    restart: unless-stopped
    ports:
      - 5678:5678 # Only exposed locally, Traefik handles external access
    environment:
      - DB_TYPE=postgresdb
      - DB_POSTGRESDB_HOST=postgres
      - DB_POSTGRESDB_PORT=5432
      - DB_POSTGRESDB_DATABASE=${POSTGRES_DB}  # Comes from .env file
      - DB_POSTGRESDB_USER=${POSTGRES_USER}     # Comes from .env file
      - DB_POSTGRESDB_PASSWORD=${POSTGRES_PASSWORD} # Comes from .env file
      - NODE_FUNCTION_ALLOW_EXTERNAL=langchain # Important for LangChain nodes!
    volumes:
      - /usr/docker_binds/n8n/.n8n:/home/node/.n8n
  postgres:
    image: postgres:14
    container_name: n8n_postgres
    restart: unless-stopped
    environment:
      - POSTGRES_DB=${POSTGRES_DB}      # From .env
      - POSTGRES_USER=${POSTGRES_USER}    # From .env
      - POSTGRES_PASSWORD=${POSTGRES_PASSWORD} # From .env
    volumes:
      - /usr/docker_binds/n8n/postgres:/var/lib/postgresql/data # Persist your database
    networks:
      - n8n