A simple docker setup for a React application

create-react-app

docker-compose run my_app npx create-react-app my_app

docker-compose.yml

version: '3'

services:
  app:
    build: .
    volumes:
      - ./myapp:/home/node
    ports:
      - "3000:3000"
    restart: always
    container_name: my_app

docker-entrypoint.sh

#!/bin/sh                                                                       
set -e
if  [ -d /home/node/myapp ]; then
    echo >&2 "Now building ..."
    cd /home/node/myapp
    npm install && npm run build
    echo >&2 "Done! You can now deploy your application"
    npm start
fi

exec "$@"

Dockerfile

FROM node:10.16-alpine

USER node

WORKDIR /home/node

COPY ./myapp /home/node/

COPY docker-entrypoint.sh /entrypoint.sh

ENTRYPOINT ["/entrypoint.sh"]

launch

docker-compose up -d