muhammad-faisal-kemal_weekly_w6's Introduction

Week 6 Assignment - Dockerize Nodejs Hello World App

OS: Windows 11 Version 22H2

Docker Desktop: 4.21.1.114176

NodeJS Docker Image: Version 18.17.0(LTS)

Install Docker and Update WSL

Download docker desktop from www.docker.com and run it

6v_1.mp4
Update Windows Subsystem for Linux with this command and run docker desktop again
```
wsl --update
```
6v_2.mp4
Verify docker installation with this command
```
docker --version
```

Download Nodejs Image on Docker

Download nodejs version 18.17.0(LTS) image on docker with this command
```
docker pull node:18.17.0-alpine
```
6v_3.mp4
For other version of nodejs images tag, you can check at this link https://hub.docker.com/_/node/

Download Nodejs Hello World(app.js) and Prepare Dockerfile

Download app.js from https://gist.github.com/berdoezt/e51718982926f0caa3fcd8ed45111430 and move to new folder

Create file with name Dockerfile, edit file with this code, and save at same folder with app.js

#Tells docker base image to use
#nodejs version 18.17.0-alpine(LTS version)
FROM node:18.17.0-alpine

#The environment application is production
ENV NODE_ENV=production

#Location of working directory
WORKDIR	/app

#The COPY command takes all the files located in
#the current directory and copies them into the image
COPY . .

#Informs Docker that the container listens
#on the port 3001
EXPOSE	3001

#Tell Docker what command to run
CMD	["node", "app.js"]

Dockerize Nodejs Hello World(app.js) And Run It

Open folder of the app on command prompt, after that run this command
```
docker build -t nodejs_hello-world .
```
Check images succesful built with this command
```
docker images
```
Run app with this command(binds port 3001 of container to port 3000 of host)
```
docker run -p 3000:3001 nodejs_hello-world
```
Finally, open browser to check app running well with this link
```
localhost:3000
```
6v_4.mp4