#!/bin/bash

if [ "$(id -u)" -ne 0 ]; then
    echo "This script must be run as root."
    exit 1
fi

echo "UPDATING SYSTEM..."
apt update && apt upgrade
apt install \
    ca-certificates \
    curl \
    micro

echo "PREPARING DOCKER REPOSITORY..."
install -m 0755 -d /etc/apt/keyrings
curl -fsSL https://download.docker.com/linux/ubuntu/gpg -o /etc/apt/keyrings/docker.asc
chmod a+r /etc/apt/keyrings/docker.asc

tee /etc/apt/sources.list.d/docker.sources <<EOF
Types: deb
URIs: https://download.docker.com/linux/ubuntu
Suites: $(. /etc/os-release && echo "${UBUNTU_CODENAME:-$VERSION_CODENAME}")
Components: stable
Architectures: $(dpkg --print-architecture)
Signed-By: /etc/apt/keyrings/docker.asc
EOF

apt update

echo "INSTALLING DOCKER..."
apt install \
    docker-ce \
    docker-ce-cli \
    containerd.io \
    docker-buildx-plugin \
    docker-compose-plugin

systemctl enable docker

adduser dockeruser && usermod -aG sudo,docker dockeruser

echo "DONE!"