Simple GPU Dev Setup - Just Essentials: developer user, Node.js via mise, Python with uv, Claude Code CLI, VSCode SSH compatibility

simple-setup.sh

#!/bin/bash
# Simple GPU Dev Setup - Just the essentials, no BS
# Core: developer user, Node.js, Python/uv, Claude Code, VSCode SSH support

set -e

echo "🚀 Simple Dev Setup - Essentials Only"
echo "===================================="

# Must be root
if [ "$EUID" -ne 0 ]; then 
    echo "Run as root: sudo bash $0"
    exit 1
fi

# No prompts
export DEBIAN_FRONTEND=noninteractive
export TZ=UTC

# Fix timezone first
ln -fs /usr/share/zoneinfo/UTC /etc/localtime
echo "UTC" > /etc/timezone

# Update apt
echo "📦 Installing essentials..."
apt-get update || {
    # Fix mirrors if needed
    echo "deb http://us.archive.ubuntu.com/ubuntu/ jammy main restricted universe multiverse" > /etc/apt/sources.list
    echo "deb http://us.archive.ubuntu.com/ubuntu/ jammy-updates main restricted universe multiverse" >> /etc/apt/sources.list  
    echo "deb http://security.ubuntu.com/ubuntu/ jammy-security main restricted universe multiverse" >> /etc/apt/sources.list
    apt-get update
}

# Install only what we need
apt-get install -y \
    sudo \
    curl \
    wget \
    git \
    build-essential \
    python3 \
    python3-pip \
    ca-certificates

# Create developer user
echo "👤 Creating developer user..."
if ! id -u developer >/dev/null 2>&1; then
    useradd -m -s /bin/bash developer
    echo "developer ALL=(ALL) NOPASSWD:ALL" >> /etc/sudoers
fi

# Fix workspace permissions NOW
if [ -d "/workspace" ]; then
    chown -R developer:developer /workspace
    echo "✅ Fixed /workspace"
fi

# Setup as developer
cat << 'DEVSETUP' > /tmp/setup.sh
#!/bin/bash
cd ~

# Setup paths for everything (bash, VSCode, etc)
cat > ~/.profile << 'EOF'
export PATH="$HOME/.local/bin:$PATH"
[ -d "$HOME/.local/share/mise/shims" ] && export PATH="$HOME/.local/share/mise/shims:$PATH"
[ -f "$HOME/.local/bin/mise" ] && eval "$($HOME/.local/bin/mise activate bash)"
EOF

cat >> ~/.bashrc << 'EOF'
export PATH="$HOME/.local/bin:$PATH"
[ -d "$HOME/.local/share/mise/shims" ] && export PATH="$HOME/.local/share/mise/shims:$PATH"
[ -f "$HOME/.local/bin/mise" ] && eval "$($HOME/.local/bin/mise activate bash)"
EOF

# Create directories
mkdir -p ~/.local/bin
export PATH="$HOME/.local/bin:$PATH"

# Install mise (for Node.js)
echo "📦 Installing mise..."
curl -fsSL https://mise.run | sh

# Install Node.js
echo "📦 Installing Node.js..."
~/.local/bin/mise use -g node@22
~/.local/bin/mise install

# Install uv (for Python)
echo "📦 Installing uv..."
curl -LsSf https://astral.sh/uv/install.sh | sh

# Wait for mise to settle
sleep 2

# Install Claude Code
echo "📦 Installing Claude Code..."
export PATH="$HOME/.local/share/mise/shims:$PATH"
npm install -g @anthropic-ai/claude-code

# Create symlinks for VSCode
ln -sf ~/.local/share/mise/shims/node ~/.local/bin/node 2>/dev/null || true
ln -sf ~/.local/share/mise/shims/npm ~/.local/bin/npm 2>/dev/null || true
ln -sf ~/.local/share/mise/shims/npx ~/.local/bin/npx 2>/dev/null || true

# Basic git config
git config --global init.defaultBranch main

echo ""
echo "✅ Setup complete!"
echo ""
echo "Installed:"
echo "  • Node.js $(~/.local/share/mise/shims/node --version 2>/dev/null || echo 'check path')"
echo "  • npm $(~/.local/share/mise/shims/npm --version 2>/dev/null || echo 'check path')"  
echo "  • Python $(python3 --version)"
echo "  • uv (Python package manager)"
echo "  • Claude Code CLI"
echo ""
echo "Quick test:"
echo "  claude --version"
echo "  uv pip install numpy"
DEVSETUP

chmod +x /tmp/setup.sh
su - developer -c "bash /tmp/setup.sh"
rm -f /tmp/setup.sh

echo ""
echo "✅ ALL DONE!"
echo ""
echo "To start working:"
echo "  su - developer"
echo ""
echo "VSCode SSH should work automatically."
echo "If not, reconnect after killing the VSCode server."