完整地Docker化Node.js项目的部署流程

/opt/test/front-node/
├── node/
│   ├── src/
│   ├── package.json
│   ├── pnpm-lock.yaml
│   ├── assets/
│   └── test.js
└── Dockerfile
└── docker-compose.yml
└── deploy.sh

# 使用官方 Node 20 运行时
FROM node:20-alpine

# 设置工作目录
WORKDIR /usr/src/app

# 复制依赖文件
COPY node/package*.json ./

# 安装依赖
RUN npm install --omit=dev && \
    addgroup -S appgroup && adduser -S appuser -G appgroup

# 切换用户，避免使用 root
USER appuser

# 暴露应用端口
EXPOSE 3001

# 启动命令
CMD ["npm", "run", "start"]

version: "3.9"

services:
  front-node:
    build:
      context: .
      dockerfile: Dockerfile
    container_name: test-node
    restart: always
    ports:
      - "3001:3001"
    environment:
      - NODE_ENV=production
    working_dir: /usr/src/app
    command: ["npm", "run", "start"]
    volumes:
      # 映射整个项目文件夹，方便热更新
      - ./node:/usr/src/app
      # 防止 node_modules 被宿主机覆盖
      - /usr/src/app/node_modules

#!/bin/bash

WORKDIR="/opt/test/front-node"
CONTAINER_NAME="test-node"
IMAGE_NAME="test-node:latest"

cd "$WORKDIR" || { echo "工作目录不存在: $WORKDIR"; exit 1; }

echo "=== 检查并停止已有容器 ==="
if docker ps -a --format '{{.Names}}' | grep -w "$CONTAINER_NAME" > /dev/null; then
    docker stop "$CONTAINER_NAME"
    docker rm "$CONTAINER_NAME"
    echo "容器 $CONTAINER_NAME 已停止并删除"
else
    echo "容器 $CONTAINER_NAME 不存在"
fi

echo "=== 删除旧镜像 ==="
if docker images --format '{{.Repository}}:{{.Tag}}' | grep -w "$IMAGE_NAME" > /dev/null; then
    docker rmi "$IMAGE_NAME" -f
    echo "镜像 $IMAGE_NAME 已删除"
else
    echo "镜像 $IMAGE_NAME 不存在"
fi

echo "=== 构建新镜像并启动容器 ==="
docker compose build
docker compose up -d

echo "=== 部署完成 ==="

chmod +x deploy.sh
./deploy.sh

docker compose build

docker compose up -d

docker ps

docker logs -f test-node