(debian/ubuntu/elementaryos) One click Docker Install script

docker_install.bash

#!/usr/bin/env bash

# This is an one-click install script using the instructions listed on the official Docker docs: https://docs.docker.com/engine/install/debian/
# This script is intended to be run on Debian / Ubuntu based systems.

banner=" _____              __            
/__  /  ____  _____/ /_____  _____
  / /  / __ \/ ___/ //_/ _ \/ ___/
 / /__/ /_/ / /__/ ,< /  __/ /    
/____/\____/\___/_/|_|\___/_/     
                                  

A one-click install script for Docker in Debian / Ubuntu based systems.

Run this script anytime over the Internet: wget -qO- \"https://gist.githubusercontent.com/freitzzz/180dc45ad110fac3f12124abffd16fdf/raw/docker_install.bash\" | bash
"

echo "$banner"

# 0. Uninstall (if any) old Docker versions

sudo apt-get remove -y docker docker-engine docker.io containerd runc

# 1. Setup Docker APT repositories

# 1.1 Update the apt package index and install packages to allow apt to use a repository over HTTPS:

sudo apt-get update

sudo apt-get install -y \
    ca-certificates \
    curl \
    gnupg \
    lsb-release
    
# 1.2 Add Docker’s official GPG key:

os_codename="$(echo $(lsb_release -i -s) | tr '[:upper:]' '[:lower:]')"
os_dist="$(lsb_release -c -s)"

sudo mkdir -m 0755 -p /etc/apt/keyrings
curl -fsSL https://download.docker.com/linux/$os_codename/gpg | sudo gpg --dearmor -o /etc/apt/keyrings/docker.gpg

# 1.3 Use the following command to set up the repository:

echo \
  "deb [arch=$(dpkg --print-architecture) signed-by=/etc/apt/keyrings/docker.gpg] https://download.docker.com/linux/$os_codename \
  $os_dist stable" | sudo tee /etc/apt/sources.list.d/docker.list > /dev/null

# 1.4 Make sure Docker repository public key file is readable

sudo chmod a+r /etc/apt/keyrings/docker.gpg

# 1.5 Update Docker repository index

sudo apt-get update

# 2. Setup Docker Engine

sudo apt-get install -y docker-ce docker-ce-cli containerd.io docker-buildx-plugin docker-compose-plugin

# 3. Add docker group to user

sudo groupadd docker
sudo usermod -aG docker $USER

newgrp docker

# 4. Verify that the Docker Engine installation is successful by running the hello-world image

docker run hello-world

# <EOF>