Install real docker

install-docker.sh

#!/usr/bin/env bash

set -euo pipefail

[[ "$UID" != 0 ]] || {
  echo "Run as regular user with sudo privileges."
  exit 1
}

# From https://docs.docker.com/engine/install/ubuntu/

sudo apt-get update
sudo apt-get install -y ca-certificates curl
sudo install -m 0755 -d /etc/apt/keyrings
sudo curl -fsSL https://download.docker.com/linux/ubuntu/gpg -o /etc/apt/keyrings/docker.asc
sudo chmod a+r /etc/apt/keyrings/docker.asc

debline="deb [arch=$(dpkg --print-architecture) signed-by=/etc/apt/keyrings/docker.asc] https://download.docker.com/linux/ubuntu $(. /etc/os-release && echo "${UBUNTU_CODENAME:-$VERSION_CODENAME}") stable"
echo "$debline" | sudo tee /etc/apt/sources.list.d/docker.list >/dev/null

sudo apt-get update

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

sudo systemctl enable docker
sudo systemctl start docker

gpasswd -a "$USER" docker

sudo docker run hello-world