Docker files for a Nodejs websocket service using Redis.

docker-compose.development.yml

version: "3"
services:
  redis:
    image: redis
    container_name: redis
    ports:
      - 6379:6379
    expose:
      - 6379

  websocket:
    build:
      context: ./
      dockerfile: ./Dockerfile.development
    depends_on:
      - redis
    container_name: websocket
    volumes:
      - ./:/var/www/websocket
    links:
      - redis
    env_file:
      - .env
    ports:
      - 3333:3333
    command:
      sh -c 'npm i && npm run start'

docker-compose.productiont.yml

version: "3"
services:
  websocket:
    build:
      context: ./
      dockerfile: ./Dockerfile.production
    container_name: websocket
    working_dir: /var/www/websocket
    environment:
      - REDIS_HOST: ${REDIS_HOST}
      - REDIS_PORT: ${REDIS_PORT}
      - PORT: ${PORT}
    ports:
      - 3333:3333
    command:
      sh -c 'npm i && npm run start'

Dockerfile.development

FROM node:10
MAINTAINER Jo du Plessis <jo@joduplessis.com>

WORKDIR /var/www/websocket

Dockerfile.production

FROM node:10
MAINTAINER Jo du Plessis <jo@joduplessis.com>

WORKDIR /var/www/websocket

COPY . /var/www/websocket