ubuntu script install docker

install-docker.sh

#!/bin/bash

# Update the apt package index and install packages to allow apt to use a repository over HTTPS
sudo apt-get update
sudo apt-get install -y \
    apt-transport-https \
    ca-certificates \
    curl \
    gnupg \
    lsb-release

# Add Docker’s official GPG key
curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo gpg --dearmor -o /usr/share/keyrings/docker-archive-keyring.gpg

# Set up the stable repository
echo \
  "deb [arch=$(dpkg --print-architecture) signed-by=/usr/share/keyrings/docker-archive-keyring.gpg] https://download.docker.com/linux/ubuntu \
  $(lsb_release -cs) stable" | sudo tee /etc/apt/sources.list.d/docker.list > /dev/null

# Update the apt package index again
sudo apt-get update

# Install the latest version of Docker Engine, containerd, and Docker Compose
sudo apt-get install -y docker-ce docker-ce-cli containerd.io docker-compose-plugin

# Start Docker and enable it to start on boot
sudo systemctl start docker
sudo systemctl enable docker

# Add the current user to the docker group to run Docker without sudo
sudo usermod -aG docker $USER

# Verify that Docker Engine is installed correctly by running the hello-world image
sudo docker run hello-world

newgrp docker

# Print Docker version to confirm successful installation
docker --version

# Inform the user to log out and back in for the group change to take effect
echo "Docker installation is complete. Please log out and log back in for the group changes to take effect."