vm_setup.sh

#!/usr/bin/env bash
set -euo pipefail

echo "[1/4] Updating system packages..."
sudo apt-get update -y

echo "[2/4] Installing Docker + Compose plugin + Git..."
sudo apt-get install -y ca-certificates curl gnupg git
sudo install -m 0755 -d /etc/apt/keyrings
if [ ! -f /etc/apt/keyrings/docker.gpg ]; then
  curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo gpg --dearmor -o /etc/apt/keyrings/docker.gpg
fi
sudo chmod a+r /etc/apt/keyrings/docker.gpg

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

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

echo "[3/4] Enabling Docker service..."
sudo systemctl enable docker
sudo systemctl start docker
sudo usermod -aG docker "$USER"

echo "[4/4] Setup complete. Please log out and log in again, then run deployment commands."