install_docker

#!/bin/bash

echo updating repositories
apt update > /dev/null 2>&1

echo installing docker prerequisites
apt install -y apt-transport-https ca-certificates curl gnupg2 software-properties-common > /dev/null 2>&1

echo adding docker key
curl -fsSL https://download.docker.com/linux/debian/gpg | apt-key add -  > /dev/null 2>&1

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

echo updating repositories
apt update > /dev/null 2>&1

echo installing docker
apt install -y docker-ce docker-ce-cli containerd.io > /dev/null 2>&1

echo creating containers user
adduser --disabled-password --gecos '' containers > /dev/null 2>&1

echo changing containers user password
echo containers:containers | chpasswd

echo adding containers user to containers group
usermod -aG docker containers

echo docker installation complete