Install Docker

install_docker.sh

# from https://docs.docker.com/install/linux/docker-ce/ubuntu/
sudo apt-get update
# Install packages to allow apt to use a repository over HTTPS
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 that you now have the key with the fingerprint
# 9DC8 5822 9FC7 DD38 854A E2D8 8D81 803C 0EBF CD88
# by searching for the last 8 characters of the fingerprint.
sudo apt-key fingerprint 0EBFCD88
echo -e "Verify fingerprint is:\n\t9DC8 5822 9FC7 DD38 854A E2D8 8D81 803C 0EBF CD88"
echo -e "[y/n]?"
read -n 1 -r
if [[ $REPLY =~ ^[Yy]$ ]]
then
  # Add the stable repository to the package index
  sudo add-apt-repository \
     "deb [arch=amd64] https://download.docker.com/linux/ubuntu \
     $(lsb_release -cs) \
     stable"
  sudo apt-get update
  sudo apt-get install docker-ce
fi