install-docker.sh

#!/bin/bash

# On error exit
set -e

# Update package definitions
apt-get update

# Allow apt (the package manager) to use repository over HTTPS
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 | apt-key add -

# Add Docker stable repository
add-apt-repository \
   "deb [arch=amd64] https://download.docker.com/linux/ubuntu \
   $(lsb_release -cs) \
   stable"

# Install Docker
apt-get update
apt-get install docker-ce docker-ce-cli containerd.io

# Verify that Docker is installed correctly
docker run hello-world