There are several ways to install Docker on Linux:

1. 1. Via Script – Quick and easy (recommended)
2. 2. Via Official Docs – Latest version with manual setup
3. 3. Via Ubuntu Repo – Stable but may be outdated

This method automates the installation process using Docker’s official script. This will automatically detect your OS and install the latest version. This may not support some distro.

• Run the official install script:

curl -fsSL https://get.docker.com | sh

root@demo:~# curl -fsSL https://get.docker.com | sh
# Executing docker install script, commit: ...
...

For a more detailed setup, follow Docker’s official instructions.

This is the command to install Docker on Ubuntu. For installation instructions for your specific distribution, refer to the Docker documentation.

• Set up the repository:

# Add Docker's official GPG key:
sudo apt-get update
sudo apt-get install ca-certificates curl
...

• Install Docker:

sudo apt-get install docker-ce docker-ce-cli containerd.io docker-buildx-plugin docker-compose-plugin

This method installs Docker from the distribution's package repository, which may not have the latest version, but it ensures stability.

• Update package lists:

sudo apt update

• Install Docker:

sudo apt install docker.io

• Install Docker Compose:

sudo apt install docker-compose

systemctl status docker
docker --version  
docker run hello-world

To allow your user to run Docker without `sudo`:

sudo usermod -aG docker $USER

Verify installation:

docker --version  
docker run hello-world

sudo apt remove docker-ce docker-ce-cli containerd.io docker-buildx-plugin docker-compose-plugin
sudo apt autoremove