guide.md

D5 S3: Dockerization

Watch video: https://youtu.be/rWw0ZHwsF5Q

Docker ensure one code, run everywhere!

Make sure you have at least 16GB RAM and the docker is installed!

Create Dockerfile

Dockerfile holds instruction to build an image.

//Dockerfile
FROM // Choose applicable node version
WORKDIR /app
ENV NODE_ENV development
COPY package.json yarn.lock ./
RUN npm install
COPY . .
EXPOSE 3000
CMD [ "npm", "run", "dev" ]

Docker-compose

services:
  express:
    build: .
    depends_on:
      - db
    restart: unless-stopped
  db:
    image: mongo:latest
    ports:
      - 27017:27017

Running container

Build image

docker-compose build

Running container in background

docker-compose up -d

Restarting container

docker-compose restart