A simple Docker and Docker Compose install script for Ubuntu

install-docker.sh

#!/bin/sh

set -o errexit
set -o nounset

# Docker
sudo apt update
sudo apt --yes --no-install-recommends install software-properties-common apt-transport-https ca-certificates
wget --quiet --output-document=- https://download.docker.com/linux/ubuntu/gpg | sudo apt-key add -
sudo add-apt-repository "deb [arch=$(dpkg --print-architecture)] https://download.docker.com/linux/ubuntu $(lsb_release --codename --short) stable"
sudo apt update
sudo apt --yes --no-install-recommends install docker-ce docker-ce-cli containerd.io
sudo usermod --append --groups docker "$USER"
sudo systemctl enable docker
printf '\nDocker installed successfully\n\n'

printf 'Waiting for Docker to start...\n\n'
sleep 5

# Docker Compose
compose_release() {
  # as the general connection issue from China, use specific version instead of
  curl --silent "https://api.github.com/repos/docker/compose/releases/latest" | grep -Po '"tag_name": "\K.*?(?=")'
  #echo "1.27.4"
}

if ! [ -x "$(command -v docker-compose)" ]; then
  sudo sh -c "curl -L https://github.com/docker/compose/releases/download/$(compose_release)/docker-compose-$(uname -s)-$(uname -m) > /usr/local/bin/docker-compose"
  sudo chmod +x /usr/local/bin/docker-compose
fi