Automating the installation of Docker on Linux using a shell script

Create a .sh file file by opening your terminal

touch docker-auto-install.sh

after that open the file

nano docker-auto-install.sh

and Write this code

#!/bin/bash

echo "Updating linux...."
sudo apt-get update
echo "Installing ca-certificates curl and gnupg..."
sudo apt-get install ca-certificates curl gnupg
echo "Add Docker's official GPG key:"
sudo install -m 0755 -d /etc/apt/keyrings
curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo gpg --dearmor -o /etc/apt/keyrings/docker.gpg
sudo chmod a+r /etc/apt/keyrings/docker.gpg

# Add Docker repository
echo \
  "deb [arch="$(dpkg --print-architecture)" signed-by=/etc/apt/keyrings/docker.gpg] https://download.docker.com/linux/ubuntu \
  "$(. /etc/os-release && echo "$VERSION_CODENAME")" stable" | \
  sudo tee /etc/apt/sources.list.d/docker.list > /dev/null

echo "Update package index again to include Docker repository"
apt update

echo "Installing Docker Engine..."
sudo apt-get install docker-ce docker-ce-cli containerd.io docker-buildx-plugin docker-compose-plugin

echo "Starting and enabling Docker service"
systemctl start docker
systemctl enable docker

echo "Docker installed and started successfully."

After complete save this file by ctrl+s
and for exit press ctrl + x

Make the script executable: chmod +x docker-auto-install.sh
Run the script with root privileges: sudo ./docker-auto-install.sh

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