Dockerfile

# 使用 Node.js 20，以符合最新版 n8n 的要求
FROM node:20-alpine

# --- Build-time arguments ---
ARG N8N_VERSION=latest
ARG N8N_PATH=/home/node/.n8n

# --- 環境變數設定 ---
ENV N8N_USER_FOLDER=$N8N_PATH
ENV DB_TYPE=sqlite
ENV N8N_DISABLE_PRODUCTION_MAIN_PROCESS_BETA=true

# --- Puppeteer/Chromium 優化環境變數 ---
ENV PUPPETEER_EXECUTABLE_PATH=/usr/bin/chromium-browser
ENV PUPPETEER_ARGS="--no-sandbox --disable-setuid-sandbox --disable-dev-shm-usage --disable-gpu"

# --- 關鍵修正：允許 n8n 的 Code 節點使用 puppeteer ---
ENV NODE_FUNCTION_ALLOW_EXTERNAL=puppeteer

# --- 安裝系統依賴 ---
USER root
RUN apk add --no-cache \
    git \
    chromium \
    procps-ng

# --- 安裝 n8n 和 Puppeteer 套件 ---
# 關鍵修正：同時安裝 n8n 和 puppeteer
RUN npm install -g n8n@${N8N_VERSION} puppeteer --omit=dev

# --- 設定權限 ---
RUN mkdir -p ${N8N_PATH} && \
    chown -R node:node /home/node

# --- 切換到非 root 用戶 ---
USER node
WORKDIR /home/node

# --- 開放 n8n 預設端口 ---
EXPOSE 5678

# --- 啟動 n8n 並在日誌中顯示公開網址 ---
CMD sh -c 'echo "-----------------------------------------------------" && \
           echo "n8n is running!" && \
           echo "Access it at: https://${SPACE_HOST}" && \
           echo "-----------------------------------------------------" && \
           n8n'