Merge pull request #1200 from seokho-son/main

Simplify docker install script

scripts/installDocker.sh

@@ -1,25 +1,28 @@
 #!/bin/bash
 
-# Need to be executed with sudo
-echo "[Install Docker]"
+# Install using the convenience script
+# Docker provides a convenience script at get.docker.com to install Docker into development
+# environments quickly and non-interactively. The convenience script is not recommended for
+# production environments, but can be used as an example to create a provisioning script that
+# is tailored to your needs. Also refer to the install using the repository steps to
+# learn about installation steps to install using the package repository.
+# The source code for the script is open source, and can be found in the docker-install repository on GitHub.
 
-echo
-echo "Will run the following command (the script needs to be executed with sudo)"
-echo "1) sudo apt update -y"
-echo "2) wget -qO- get.docker.com | sh"
-echo "3) sudo docker -v"
+# OS requirement (one of the followings)
+# Ubuntu Jammy 22.04 (LTS)
+# Ubuntu Impish 21.10
+# Ubuntu Focal 20.04 (LTS)
+# Ubuntu Bionic 18.04 (LTS)
+# Debian Bullseye 11 (stable)
+# Debian Buster 10 (oldstable)
+# Raspbian Bullseye 11 (stable)
+# Raspbian Buster 10 (oldstable)
+# Fedora 34
+# Fedora 35
+# Fedora 36
+# CentOS 7, CentOS 8 (stream), or CentOS 9 (stream)
+# RHEL 7, RHEL 8 or RHEL 9 on s390x (IBM Z)
 
-# Check Docker engine
-if ! sudo docker -v 2>&1; then
-    # update
-    echo "[apt update]"
-    sudo apt update -y
-
-    # install Docker
-    echo "[install Docker engine]"
-    wget -qO- get.docker.com | sh
-fi
-
-# installation checking
-echo [sudo docker -v]
+curl -fsSL https://get.docker.com -o get-docker.sh
+sudo sh get-docker.sh
 sudo docker -v