ViteJS with docker cannot find module npm run install

Question

with my Docker file

FROM node

WORKDIR /app

COPY package*.json .

RUN npm install

COPY . .

CMD npm run dev

EXPOSE 4000

ENV NODE_ENV development

and docker compose

version: '3.8'

services:
  app:
    build: .
    container_name: train_vite
    working_dir: /app/
    ports:
      - "4000:4000"
    volumes:
      - ./:/var/www/html/app
    command:
      - npm run install
      - npm run dev
    environment:
      NODE_ENV: development

and vite.config.ts

import { defineConfig } from 'vite'
import react from '@vitejs/plugin-react-swc'

// https://vitejs.dev/config/
export default defineConfig({
  plugins: [react()],
  server:{watch:{
    usePolling:true,
    },
    host:true,
    strictPort:true,
    port:4000
  }
})

throws an error like this the command I run is docker compose up

I try to run a docker image with the app folder linked to the docker folder (volume) to see the changes on live.

Answer 1

A single command can be specified in a compose definition as a string:

"/run/this/command witharg"

or an array of the command and its arguments.

[ "/run/this/command", "witharg" ]

The existing definition is attempting to execute a binary called npm run install with the argument npm run dev

Updating the example as a string:

version: '3.8'

services:
  app:
    build: .
    container_name: train_vite
    working_dir: /app/
    ports:
      - "4000:4000"
    volumes:
      - ./:/var/www/html/app
    command: "npm run dev"

or as an array

    command: [ "/usr/local/bin/npm", "run", "dev" ]

To run multiple commands at startup, the build would need a script in the container and that script used as a command or entrypoint.