Node.js 未在 Docker 中运行，我的 docker-compose.yml 是否正确？

Question

The problem:

I'm trying to set up a Docker WordPress development environment on Windows 11 with wsl2. I created a docker-compose.yml and everything works apart from the node install. The container tries to start it and then just stops. Is something in my docker-compose file wrong?

I want to use node because I use gulp, npm and browser sync for my WordPress themes.

This is my docker-compose.yml:

version: "3.9"

services:
  db:
    image: mysql:5.7
    volumes:
      - dbdata:/var/lib/mysql
    restart: always
    environment:
      MYSQL_ROOT_PASSWORD: somewordpress
      MYSQL_DATABASE: wordpress
      MYSQL_USER: wordpress
      MYSQL_PASSWORD: wordpress

  wordpress:
    depends_on:
      - db
    image: wordpress:latest
    volumes:
      - wp-content:/var/www/html/wp-content
    ports:
      - "8000:80"
    restart: always
    environment:
      WORDPRESS_DB_HOST: db:3306
      WORDPRESS_DB_USER: wordpress
      WORDPRESS_DB_PASSWORD: wordpress
  node:
    restart: "no"
    image: node:latest
    container_name: nodejs
    depends_on:
      - wordpress
    volumes:
      - node-data:/usr/src/app
    ports:
      - 3000:3000
      - 3001:3001
volumes:
  dbdata:
  wp-content:
  node-data:

Answer 1

You have to use a Dockerfile otherwise it will never ever work!

Answer 2

Problem is that you have mentioned to spin up the docker container but just think for a sec how will you command node to tell that what it needs to do.When it sees no action commanded it basically closes up.

Solution

1. Long way - You can use up a dockerfile, as mentioned by Tom, dockerfile is generally used to containerise your application so whatever code you need do just write it, then build your code into a docker image with node using Dockerfile, but in that case trouble is that everytime you are doing any code change you have reiterate over the same process and again build your code.
2. Another simple way I could think of is add a command:npm start in your node image and this should help you probably

Forgive me if I have suggested something wrong because I am also learner in docker:)