1. Update package lists¶

sudo apt update

2. Install base tools¶

sudo apt install -y sudo curl wget gnupg lsb-release apt-transport-https software-properties-common

3. Install Docker (official repository)¶

curl -fsSL https://download.docker.com/linux/debian/gpg | sudo gpg --dearmor -o /usr/share/keyrings/docker-archive-keyring.gpg

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

sudo apt update
sudo apt install -y docker-ce docker-ce-cli containerd.io docker-compose-plugin

4. Add your user to docker group¶

sudo usermod -aG docker $USER

5. Initialize single-node Swarm¶

sudo docker swarm init

6. Optional: install lightweight desktop environment for X2Go¶

sudo apt install -y xfce4 xfce4-goodies lightdm

7. Install X2Go server¶

sudo apt install -y x2goserver x2goserver-xsession

8. Optional: install common tools for backend testing¶

sudo apt install -y git htop tmux vim curl jq

9. Enable and start Docker service¶

sudo systemctl enable docker
sudo systemctl start docker