How to install docker in Ubuntu (Tested on 21.10)?

install_docker.sh

#!bin/bash

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BASH SCRIPT TO INSTALL DOCKER ENGINE ON LINUX (UBUNTU)

Note: There might be some yes/no interactive prompts in the terminal.

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# Uninstall old versions of docker, if available
sudo apt-get remove docker docker-engine docker.io containerd runc

# Install the dependencies
sudo apt-get update && sudo apt-get install \
    ca-certificates \
    curl \
    gnupg \
    lsb-release
    
# Add docker's official keyring to local system 
curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo gpg --dearmor -o /usr/share/keyrings/docker-archive-keyring.gpg

# Set up the stable repository
echo \
  "deb [arch=$(dpkg --print-architecture) signed-by=/usr/share/keyrings/docker-archive-keyring.gpg] https://download.docker.com/linux/ubuntu \
  $(lsb_release -cs) stable" | sudo tee /etc/apt/sources.list.d/docker.list > /dev/null

# Install the latest version of the docker engine
sudo apt-get update && sudo apt-get install docker-ce docker-ce-cli containerd.io

# Verify the installation
sudo docker run hello-world