Install docker on Ubuntu

get_docker.sh

#!/usr/bin/env bash

# Convenience script for setting up docker and docker-compose on Ubuntu.
# Steps essentially copied and pasted from:
#   https://docs.docker.com/install/linux/docker-ce/ubuntu/
#   https://docs.docker.com/compose/install/

# Uninstall any existing docker installations
sudo apt-get remove docker docker-engine docker.io containerd runc

# Update the apt package index
sudo apt-get update

# Install dependencies
sudo apt-get install \
    apt-transport-https \
    ca-certificates \
    curl \
    gnupg-agent \
    software-properties-common
    
# Add Docker's official GPG key
curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo apt-key add -

# Verify the key by its fingerprint
sudo apt-key fingerprint 0EBFCD88

# Set up the stable repository for x86_64 or AMD64 machines
sudo add-apt-repository \
   "deb [arch=amd64] https://download.docker.com/linux/ubuntu \
   $(lsb_release -cs) \
   stable"
   
# Install docker engine community
sudo apt-get update
sudo apt-get install docker-ce docker-ce-cli containerd.io

# Verify docker installed properly
sudo docker run hello-world

# Download current stable release of docker compose
sudo curl -L "https://github.com/docker/compose/releases/download/1.28.2/docker-compose-$(uname -s)-$(uname -m)" -o /usr/local/bin/docker-compose

# Apply executable permissions on binary
sudo chmod +x /usr/local/bin/docker-compose

# Test the installation
docker-compose --version

# Add current user to docker group
sudo usermod -a -G docker $USER