docker_install.sh

#!/bin/bash

# Update and upgrade
sudo apt update && sudo apt upgrade -y

# Install prerequisites
sudo apt install apt-transport-https ca-certificates curl software-properties-common -y

# Add Docker's official GPG key
curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo apt-key add -

# Add Docker repository
sudo add-apt-repository "deb [arch=amd64] https://download.docker.com/linux/ubuntu focal stable"

# Check available Docker versions
apt-cache policy docker-ce

# Install Docker
sudo apt install docker-ce -y

# Check Docker status
# sudo systemctl status docker

# Add current user to Docker group
sudo usermod -aG docker ${USER}

# Switch to the current user to apply group changes
su - ${USER} << EOF
# Display groups
groups
EOF

# Reboot the system
sudo reboot

Run using

curl -sSL https://gist.githubusercontent.com/nhridoy/df3f005b79e6a9cf11c50bd3bf9711c2/raw/644a59fe5b44ba9ec3abd488bd5980976f62c7bc/docker_install.sh | sh