使用Docker创建Node.js方法服务器管理。利用Docker轻量级系统，对Nodejs实现实时管理，宿主机同步文件。

Docker查询node镜像并拉取

[root@VM_0_16_centos ~]docker serarch node# 也可以通过dockerfile安装
[root@VM_0_16_centos ~]docker pull node

安装node容器

[root@VM_0_16_centos nodejs]# docker run -it -d --name node02 -p 443:3000 -v /data/nodejs/express02:/home/express node

查看安装的容器

[root@VM_0_16_centos nodejs]# docker ps -a
CONTAINER ID        IMAGE               COMMAND                  CREATED             STATUS              PORTS                    NAMES
46101615ca3a        node                "docker-entrypoint.s…"   3 minutes ago       Up 3 minutes        0.0.0.0:3001->3000/tcp   node02
c6d2e4b0caf4        node                "docker-entrypoint.s…"   About an hour ago   Up About an hour    0.0.0.0:3000->3000/tcp   node01
ed5a7f11dd55        nginx               "/docker-entrypoint.…"   17 hours ago        Up 15 hours         0.0.0.0:8080->80/tcp     nginx-01

进入express同步文件夹进行写node.js

[root@VM_0_16_centos nodejs]# cd /data/nodejs/express02

进入docker容器node02中查看文件夹

[root@VM_0_16_centos express02]# docker exec -it node02 /bin/bash
root@46101615ca3a:/# cd /home/express/
root@46101615ca3a:/home/express# ls

进入宿主机配置node服务器

[root@VM_0_16_centos express02]# npm init
[root@VM_0_16_centos express02]# ls
package.json
[root@VM_0_16_centos express02]# cd ../express
[root@VM_0_16_centos express]# ls
index.js  node_modules  package.json  package-lock.json
[root@VM_0_16_centos express]# cp index.js ../express02/
[root@VM_0_16_centos express]# cd ../express02
[root@VM_0_16_centos express02]# ls
index.js  package.json
[root@VM_0_16_centos express02]# 

创建禁止同步文件.dockerignore

[root@VM_0_16_centos express02]# cat .dockerignore 
node_modules/

创建express

[root@VM_0_16_centos express02]# ls
index.js  package.json  package-lock.json
[root@VM_0_16_centos express02]# npm install --save express
[root@VM_0_16_centos express02]# ls
index.js  node_modules  package.json  package-lock.json
[root@VM_0_16_centos express02]# 

进入容器内操作启动nodejs

[root@VM_0_16_centos express02]# docker exec -it node02 /bin/bash
root@46101615ca3a:/# cd /home/express/
root@46101615ca3a:/home/express# ls
index.js  node_modules  package-lock.json  package.json
root@46101615ca3a:/home/express# 
root@46101615ca3a:/home/express# node index.js 
listening 3000

访问已开启的nodejs

http://xxx.xxx.xxx.xxx:3001/
http://xxx.xxx.xxx.xxx:3000/

安装nodemon

nodemon是实时监控node.js服务的内容修改进程
在package.json中添加快捷启动，代码如下

{
  "name": "package",
  "version": "1.0.0",
  "description": "",
  "main": "index.js",
  "scripts": {
    "test": "echo \"Error: no test specified\" && exit 1",
   "server":"nodemon /hoem/express/index.js"  
},
  "author": "",
  "license": "ISC",
  "dependencies": {
    "express": "^4.17.1"
  }
}

以nodemon启动命令

npm run server