devbox-quick-setup.sh

#!/bin/bash
# https://gist.github.com/Vaviloff/9ee6b0c68393a98a0e9c715ba4063fe3

# Development box setup script
# Run as root - sets up system for a user $user

user="${1:-vaviloff}"

set -e  # Exit on any error

# Set non-interactive mode to prevent prompts
export DEBIAN_FRONTEND=noninteractive

echo "=== Starting Linux Development Box Setup ==="

# Update system
echo "Updating system packages..."
apt update -qq

# Install zsh and other useful software
echo "Installing essential development tools..."
apt install -yq zsh build-essential curl git wget htop rsync tmux mc pv ca-certificates sudo

# Create user '$user' if it doesn't exist
if ! id "$user" &>/dev/null; then
    echo "Creating user '$user'..."
    useradd -m -s /bin/bash $user
    password=$(openssl rand -base64 12)
    echo "$user:$password" | chpasswd
    echo "User '$user' created with password: $password"
else
    echo "User '$user' already exists"
fi

# Add $user to sudoers
echo "Adding $user to sudoers..."
usermod -aG sudo $user

# Set up SSH keys for $user from GitHub
echo "Setting up SSH keys for $user..."
sudo -u $user bash << EOF
    cd /home/$user
    export HOME=/home/$user
    
    # Create .ssh directory with proper permissions
    mkdir -p ~/.ssh
    chmod 700 ~/.ssh
    
    # Download public keys from GitHub
    curl -fsSL https://github.com/$user.keys -o ~/.ssh/authorized_keys
    chmod 600 ~/.ssh/authorized_keys
    
    echo "SSH keys downloaded from GitHub for $user"
EOF

# Set up zsh for $user user
echo "Setting up zsh for $user..."
# Change shell for $user
chsh -s $(which zsh) $user

# Install Oh My Zsh for $user user (run as $user)
sudo -u $user bash << EOF
    cd /home/$user
    export HOME=/home/$user
    
    # Install Oh My Zsh
    sh -c "$(curl -fsSL https://raw.githubusercontent.com/ohmyzsh/ohmyzsh/master/tools/install.sh)" "" --unattended

    if [ ! -f ~/.zshrc ]; then
      echo "Oh My Zsh installation failed"
      exit 1
    fi

    # Add custom configurations to .zshrc
    if [ -f ~/.zshrc ] && ! grep -q "alias dcc='docker compose'" ~/.zshrc; then
    echo "Appending custom Zsh configuration..."
    cat << 'ZSH_CUSTOM' >> ~/.zshrc

# Custom key bindings and options
bindkey '^U' backward-kill-line
unsetopt nomatch
alias dcc='docker compose'
ZSH_CUSTOM
fi

    # Add vim configuration
    if ! grep -q "\" Move lines with Alt up/down\"" ~/.vimrc 2>/dev/null; then
        echo "Appending custom Vim configuration..."    
        cat << 'VIMEOF' >> .vimrc
" Usual stuff
set nocompatible
set background=dark
set backspace=2
syntax on
set tabstop=2
set shiftwidth=2
set expandtab

" Move lines with Alt up/down
nnoremap <A-Down> :m .+1<CR>==
nnoremap <A-Up> :m .-2<CR>==
vnoremap <A-Down> :m '>+1<CR>gv=gv
vnoremap <A-Up> :m '<-2<CR>gv=gv
VIMEOF
fi

EOF

echo "Oh My Zsh installed and configured for $user"

# Install Docker
echo "Installing Docker..."

# Remove old docker packages
for pkg in docker.io docker-doc docker-compose docker-compose-v2 podman-docker containerd runc; do 
    apt-get remove -yq $pkg 2>/dev/null || true
done

# Add Docker GPG key
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

# Add Docker repository
echo \
  "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" | \
  tee /etc/apt/sources.list.d/docker.list > /dev/null

# Install Docker
apt-get update -qq
apt-get install -yq docker-ce docker-ce-cli containerd.io docker-buildx-plugin docker-compose-plugin

# Add $user to docker group
echo "Adding $user to docker group..."
usermod -aG docker $user

# Start and enable Docker service
systemctl start docker
systemctl enable docker