One Day workshop on understanding Docker to package applications into containers—standardized executable components combining application source code with the operating system.

1. Install Ubuntu 20.04.4 LTS from here
2. Install Git from your terminal by running following commands
   1. $ sudo apt-get update
   2. $ sudo apt-get install git
   3. Verify the installation was successful by typing
   4. $ git --version
3. Install curl and jq by running commands
   1. $ sudo apt install curl
   2. $ sudo apt install jq

1. If you don't have the account on github then create an account on GitHub
2. Create a directory named WORKSHOP, run the command in the terminal (ctrl+shift+t)
   1. $ mkdir WORKSHOP
3. Fork this repository and then clone it inside the WORKSHOP directory
4. You can refer this guide to understand how to fork and clone

1. To install docker go to your cloned repository and run the following command from the terminal
   1. $ cd WORKSHOP/WebApp-Workshop1/
   2. $ sudo chmod +x prerequisites/install_docker.sh
   3. $ sudo apt-get update
   4. $ sudo prerequisites/install_docker.sh
2. Verify Docker is installed
   1. $ sudo docker -v
   2. Output : Docker version 20.10.12, build e91ed57`
3. Install Docker-compose by running the follwing command
   1. $ sudo apt-get update
   2. $ sudo apt-get install docker-compose
   3. Verify the installed version with the following command
   4. $ sudo docker-compose --version
   5. Output: docker-compose version 1.25.0
4. Verify docker is installed
   1. $ sudo docker run hello-world
   2. Go through the output
5. Download the follwing docker images to your local machine
   1. $ sudo docker pull node:16.16.0-alpine3.15
      1. Verify the image is pulled into your local machine
      2. sudo docker run --rm -ti node:16.16.0-alpine3.15 node -v
      3. Output: v16.16.0
   2. $ sudo docker pull postgres:14-alpine
      1. Verify the image
      2. sudo docker run --rm -ti postgres:14-alpine psql -V
      3. Output: psql (PostgreSQL) 14.5

• By the end of this workshop you will understand what Docker and how it is containerized for the applications
• How Javascript works in the browser
• Async / await in Javascript
• API based node js application with express framework

Follow this tutorial and try it on your local machine
Node application setup