基础Docker搭建node.js && redis环境，安装e

服务器安装node

先安装nvm，然后安装node，npm

wget -qO- https://raw.githubusercontent.com/creationix/nvm/v0.33.11/install.sh | bash   
nvm install stable  
node -v 
npm i cnpm -g   
npm i nrm -g

接着下载express框架

npm install express-generator -g    
express app

编写docker-compose.yml

version: "3"
services:
  node:
    image: node:latest
    container_name: node
    hostname: node
    ports:
      - "3000:3000"
    working_dir: /app
    volumes:
      - ./app:/app  #创建项目根目录
    links:
      - redis
    command: ["/bin/sh", "-c", "npm install && npm start"]
    restart: always
  redis:
    image: redis:5-alpine
    container_name: redis
    hostname: redis
    command: redis-server /usr/local/etc/redis/redis.conf --requirepass redis123
    volumes:
      - ./database:/data
      - ./redis.conf:/usr/local/etc/redis/redis.conf
    ports:
      - "6379:6379"
    restart: always

说明：docker-compose.yml是启动容器、配置端口和映射以及执行容器内虚拟机命令的命令集，常用的配置就那几个：image镜像、working_dir工作路径、command执行命令、volumes文件映射、ports端口映射、restart重启方式

效果

执行命令

docker-compose up -d

参考文章

docker部署express项目