Exercises

Question 1

FROM node:alpine

Answer 1

Use docker base image

Question 2

RUN mkdir -p usr/src/server

Answer 2

Create application directory

Question 3

WORKDIR /usr/src/server

Answer 3

Set working directory of the container for all RUN commands

Question 4

COPY package.json /usr/src/server/

Answer 4

Copy package.json file which contain all dependencies required for application

Question 5

RUN npm install

Answer 5

Install dependencies from package.json

Question 6

COPY . /usr/src/server

Answer 6

Copy all other files from local machine to container

Question 7

EXPOSÉ 3000

Answer 7

xpose container port to the host machine

Question 8

CMD [ “node”
“server. js”]

Answer 8

A start command to run the application