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Dockerfile

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+# 基础构建阶段：使用 Node.js 镜像并安装 Python3 和虚拟环境
+FROM node:20-slim AS builder
+
+# 设置构建时变量
+ARG requirements=requests
+ARG PACKAGES=n8n
+ARG WORKDIR=/app
+ARG DUMP_URL
+ARG DUMP_PASSWORD
+
+# 安装 Python3、venv 以及必要的系统工具
+RUN apt-get update && apt-get install -y python3 python3-venv curl gnupg build-essential && \
+    npm install -g ${PACKAGES} && \
+    apt-get clean && rm -rf /var/lib/apt/lists/*
+
+# 设置 Python 虚拟环境
+ENV VIRTUAL_ENV=/opt/venv
+RUN python3 -m venv $VIRTUAL_ENV && \
+    $VIRTUAL_ENV/bin/pip install --upgrade pip && \
+    $VIRTUAL_ENV/bin/pip install $requirements
+
+# 主运行阶段：基于较小的 PostgreSQL 镜像
+FROM postgres:latest
+
+# 设置构建时变量
+ARG POSTGRES_USER=n8n
+ARG POSTGRES_PASSWORD=n8n
+ARG POSTGRES_DB=n8n
+ARG WEBHOOK_URL=https://aigenai-db.hf.space/
+ARG WORKDIR=/app
+ARG DB_IMPORT=no
+ARG NODEJS_VER=20
+ARG PACKAGES=n8n
+
+# 设置环境变量
+ENV POSTGRES_USER=${POSTGRES_USER} \
+    POSTGRES_PASSWORD=${POSTGRES_PASSWORD} \
+    POSTGRES_DB=${POSTGRES_DB} \
+    WEBHOOK_URL=${WEBHOOK_URL} \
+    WORKDIR=${WORKDIR} \
+    DB_IMPORT=${DB_IMPORT} \
+    N8N_HOST=0.0.0.0 \
+    N8N_PORT=7860 \
+    N8N_PROTOCOL=https \
+    GENERIC_TIMEZONE=Asia/Shanghai \
+    N8N_METRICS=true \
+    QUEUE_HEALTH_CHECK_ACTIVE=true \
+    N8N_PAYLOAD_SIZE_MAX=256 \
+    DB_TYPE=postgresdb \
+    DB_POSTGRESDB_HOST=localhost \
+    DB_POSTGRESDB_PORT=5432 \
+    DB_POSTGRESDB_USER=${POSTGRES_USER} \
+    DB_POSTGRESDB_PASSWORD=${POSTGRES_PASSWORD} \
+    DB_POSTGRESDB_DATABASE=${POSTGRES_DB} \
+    VIRTUAL_ENV=/opt/venv \
+    PATH="$VIRTUAL_ENV/bin:/usr/local/lib/node_modules/n8n/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:$PATH"
+
+# 复制构建阶段的 Node.js 和 n8n
+COPY --from=builder /usr/local/bin/node /usr/local/bin/
+COPY --from=builder /usr/local/lib/node_modules /usr/local/lib/node_modules
+# 复制构建阶段的 Python 运行环境
+COPY --from=builder $VIRTUAL_ENV $VIRTUAL_ENV
+
+# 安装必要的软件包并设置时区
+RUN apt-get update && apt-get install -y \
+    curl unzip gnupg build-essential sudo vim git procps lsof net-tools \
+    ca-certificates openssl tzdata python3-venv gosu \
+    htop jq wget && \
+    ln -fs /usr/share/zoneinfo/Asia/Shanghai /etc/localtime && \
+    dpkg-reconfigure --frontend noninteractive tzdata
+
+# 设置工作目录并复制启动脚本
+WORKDIR ${WORKDIR}
+COPY run.sh ${WORKDIR}/run.sh
+COPY import-db.sh /docker-entrypoint-initdb.d/
+RUN chmod +x ${WORKDIR}/run.sh /docker-entrypoint-initdb.d/import-db.sh
+
+# 更改现有的 postgres 用户 UID 和 GID 为 1000
+USER root
+RUN usermod -u 1000 postgres && groupmod -g 1000 postgres && \
+    chown -R postgres:postgres /var/lib/postgresql && chown -R postgres:postgres /var/run/postgresql && \
+    chown -R postgres:postgres $WORKDIR && mkdir -p $WORKDIR/backups && chmod -R 775 $WORKDIR/backups
+    
+# 切换到 postgres 用户
+USER postgres
+
+# 健康检查配置（可选）
+HEALTHCHECK --interval=120s --timeout=10s --start-period=10s --retries=3 \
+    CMD curl -f http://localhost:7860/HEALTHZ || exit 1
+
+# 启动容器时执行 run.sh 脚本
+CMD ["./run.sh"]

import-db.sh

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+#!/bin/bash
+
+# 检查是否需要导入数据库
+if [ "$DB_IMPORT" = "yes" ]; then
+    echo "Starting database import..."
+
+    # 读取下载 URL 和解压密码（如果有）
+    DUMP_URL=${DUMP_URL:-""}          # 数据库 dump 文件的下载 URL
+    DUMP_PASSWORD=${DUMP_PASSWORD:-""} # 如果 dump 文件有密码保护
+
+    # 检查 URL 是否为空
+    if [ -z "$DUMP_URL" ]; then
+        echo "DUMP_URL is not set. Skipping database import."
+        # 不退出，仅跳过导入步骤
+        exit 0
+    fi
+
+    # 下载数据库 dump 文件
+    echo "Downloading dump file from $DUMP_URL..."
+    wget -O /tmp/dump.sql "$DUMP_URL" || { echo "Failed to download dump file."; exit 1; }
+
+    # 检查文件是否有密码保护，并使用 pg_restore 或 psql 进行导入
+    if [ -n "$DUMP_PASSWORD" ]; then
+        echo "Dump file is protected with a password."
+
+        # 使用 pg_restore 导入
+        PGPASSWORD="$DUMP_PASSWORD" pg_restore -U $DB_POSTGRESDB_USER -d $DB_POSTGRESDB_DATABASE /tmp/dump.sql || {
+            echo "Failed to import dump file with password."; exit 1;
+        }
+    else
+        echo "Dump file is not password protected."
+
+        # 使用 psql 直接导入
+        psql -U $DB_POSTGRESDB_USER -d $DB_POSTGRESDB_DATABASE -f /tmp/dump.sql || {
+            echo "Failed to import dump file."; exit 1;
+        }
+    fi
+
+    echo "Database import completed successfully."
+else
+    echo "Skipping database import."
+fi

run.sh

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+#!/bin/bash
+
+# 确保以 postgres 用户身份运行
+if [ "$(id -u)" -ne 1000 ]; then
+  echo "切换到 UID 为 1000 的 postgres 用户运行"
+  exec gosu postgres "$0" "$@"
+fi
+
+# 启动 PostgreSQL 服务
+docker-entrypoint.sh postgres &
+
+# 检查 PostgreSQL 服务是否已启动
+echo "等待 PostgreSQL 服务启动..."
+until pg_isready -h localhost; do
+  sleep 3
+done
+echo "PostgreSQL 服务已启动!"
+
+# 执行数据库导入脚本
+echo "运行数据库导入脚本..."
+/app/import-db.sh
+
+sleep 3
+
+# export N8N_USER_FOLDER=${DATA_DIR}
+export N8N_ENCRYPTION_KEY="n8n8n8n"
+# Allows usage of all builtin modules
+export NODE_FUNCTION_ALLOW_BUILTIN=*
+# Allow usage of external npm modules.
+export NODE_FUNCTION_ALLOW_EXTERNAL=*
+
+# 使用绝对路径调用 n8n
+exec n8n