Debian: Setup & Install Docker

This is more for my reference than anything else, but here are the steps to install Docker on Ubuntu.

Cleaning up old versions

if we have any old/existing versions of Docker installed, we should remove them first:

sudo apt-get purge docker-ce docker-ce-cli containerd.io docker-buildx-plugin docker-compose-plugin docker-ce-rootless-extras

Installing Docker

Now we can install Docker by following these steps:

# Add Docker's official GPG key:
sudo apt-get update
sudo apt-get install ca-certificates curl
sudo install -m 0755 -d /etc/apt/keyrings
sudo curl -fsSL https://download.docker.com/linux/debian/gpg -o /etc/apt/keyrings/docker.asc
sudo chmod a+r /etc/apt/keyrings/docker.asc

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

If you use a derivative distribution, such as Kali Linux, you may need to substitute the part of this command that’s expected to print the version codename: $(. /etc/os-release && echo “$VERSION_CODENAME”) Replace this part with the codename of the corresponding Debian release, such as bookworm.

Install the latest version of Docker Engine and containerd

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

Check installed version

sudo systemctl status docker

Some versions require you to manually start the Docker service

sudo systemctl start docker

Check Docker Compose

docker compose

Use Docker without sudo

To avoid using sudo with every Docker command, add your user to the docker group:

sudo usermod -aG docker $USER

You’ll need to log out then back in to apply this change.