#!/bin/bash

set -x

setup() {
    if ! systemctl is-active --quiet docker; then
        echo deb http://deb.debian.org/debian bullseye-backports main | tee /etc/apt/sources.list.d/backports.list && apt-get update
        DEBIAN_FRONTEND=noninteractive apt-get install --no-install-recommends --quiet -y -t bullseye-backports git docker.io
    fi
}

setup