Install Docker on Debian. Run this as root.

docker_install_debian.sh

#!/bin/sh 

apt-get update 

apt-get install -yq \
    apt-transport-https \
    ca-certificates \
    curl \
    gnupg2 \
    software-properties-common
    
curl -fsSL https://download.docker.com/linux/debian/gpg |  apt-key add -


add-apt-repository \
   "deb [arch=amd64] https://download.docker.com/linux/debian \
   $(lsb_release -cs) \
   stable"
   
apt-get update

apt-get install -yq docker-ce docker-ce-cli containerd.io

usermod -a -G docker jenkins

curl -L "https://github.com/docker/compose/releases/download/1.24.0/docker-compose-$(uname -s)-$(uname -m)" -o /usr/local/bin/docker-compose

chmod +x /usr/local/bin/docker-compose