docker-compose 不为 localhost:3000 下的 Nuxt.js 网站提供服务

Question

While I know that the course was meant for backend apps, I've tried making a docker-compose.yml and Dockerfile for a frontend Nuxt.js app. My docker-compose.yml file looks like this:

version: '2.4'

services:
  web:
    build: .
    volumes:
      - .:/app
      - /app/node_modules/
    ports:
      - 3000:3000

Any my Dockerfile:

FROM node:13.0-alpine

ENV NODE_ENV=development

WORKDIR /app

EXPOSE 3000

COPY package.json yarn.lock* ./

RUN apk add --no-cache --virtual .build-deps alpine-sdk python \
 && yarn && yarn cache clean \
 && apk del .build-deps

ENV PATH=./node_modules/.bin/:$PATH

COPY . .

CMD ["nuxt"]

When I run this with docker-compose up , my application builds and starts properly though the nuxt CMD, but when I go to http://localhost:3000 the app isn't online.

What am I doing wrong here?

Answer 1

your cmd should be

CMD ["yarn", "dev"]

in docker compose you can add the line command and use it for apply dev or start when you need.

version: '3'

services:
  web:
    build: .
    volumes:
      - .:/app
      - /app/node_modules/
    ports:
      - 3000:3000
    command: yarn dev 
    # or
    # command: yarn build && yarn start