devdocker/entrypoint.sh at main · matheusvir/devdocker · GitHub

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#!/bin/bash

# DevDocker entrypoint - creates user and switches to it automatically

set -e

# ============================================
# User Setup (runs only once)
# ============================================

if [ ! -f /tmp/.user_created ]; then
    echo "================================"
    echo "🐳 DevDocker - User Setup"
    echo "================================"
    echo ""

    # Get host user info
    USER_NAME="${HOST_USER:-devuser}"
    USER_UID="${HOST_UID:-1000}"
    USER_GID="${HOST_GID:-1000}"

    echo "👤 Creating user: $USER_NAME (UID: $USER_UID, GID: $USER_GID)"

    # Create group if it doesn't exist
    if ! getent group "$USER_GID" >/dev/null 2>&1; then
        groupadd -g "$USER_GID" "$USER_NAME"
    fi

    # Create user
    if ! id -u "$USER_NAME" >/dev/null 2>&1; then
        useradd -m -u "$USER_UID" -g "$USER_GID" -s /bin/bash "$USER_NAME"

        # Add to sudo without password
        usermod -aG sudo "$USER_NAME"
        echo "$USER_NAME ALL=(ALL) NOPASSWD:ALL" >> /etc/sudoers

        # Copy and configure conda
        if [ -f /root/.condarc ]; then
            cp /root/.condarc /home/"$USER_NAME"/.condarc
            chown "$USER_NAME":"$USER_NAME" /home/"$USER_NAME"/.condarc
        fi

        su - "$USER_NAME" -c "conda init bash" > /dev/null 2>&1

        # Create symlinks for mounted configs
        ln -sf /root/.gitconfig /home/"$USER_NAME"/.gitconfig 2>/dev/null || true
        ln -sf /root/.ssh /home/"$USER_NAME"/.ssh 2>/dev/null || true

        # Set workspace permissions
        if [ -d /workspace ]; then
            chown -R "$USER_NAME":"$USER_NAME" /workspace 2>/dev/null || true
        fi

        # Add cursor reset to user's bashrc
        echo '' >> /home/"$USER_NAME"/.bashrc
        echo '# Preserve host terminal cursor style' >> /home/"$USER_NAME"/.bashrc
        echo 'if [ -n "$DEVDOCKER_CURSOR" ]; then' >> /home/"$USER_NAME"/.bashrc
        echo '    printf "\033[%s q" "$DEVDOCKER_CURSOR"' >> /home/"$USER_NAME"/.bashrc
        echo 'fi' >> /home/"$USER_NAME"/.bashrc

        chown "$USER_NAME":"$USER_NAME" /home/"$USER_NAME"/.bashrc

        echo "✅ User created successfully!"
        echo ""
    fi

    # Mark as done
    echo "$USER_NAME" > /tmp/.user_created
fi

# Get the created/existing user
USER_NAME=$(cat /tmp/.user_created 2>/dev/null || echo "${HOST_USER:-devuser}")

# ============================================
# Save and restore cursor style
# ============================================

# Trap to restore cursor on exit
restore_cursor() {
    if [ -n "$DEVDOCKER_CURSOR" ]; then
        printf "\033[%s q" "$DEVDOCKER_CURSOR"
    fi
}

trap restore_cursor EXIT INT TERM

# ============================================
# Switch to non-root user and execute command
# ============================================

if [ "$(whoami)" = "root" ]; then
    exec gosu "$USER_NAME" "$@"
else
    exec "$@"
fi