Automate Simple Web Application Deployment

#!/bin/bash

# Configuration
PROJECT_ROOT="/var/www/mywebapp" # Path to your web application
GIT_BRANCH="main" # Branch to pull from
WEB_SERVER_SERVICE="nginx" # Or apache2, httpd, etc.
PHP_FPM_SERVICE="php8.1-fpm" # If applicable, e.g., php-fpm

echo "Starting deployment for ${PROJECT_ROOT}..."

# Navigate to project directory
cd "${PROJECT_ROOT}" || { echo "Error: Project directory not found."; exit 1; }

# Pull latest changes from Git
echo "Pulling latest changes from Git branch: ${GIT_BRANCH}"
git pull origin "${GIT_BRANCH}"
if [ $? -eq 0 ]; then
  echo "Git pull successful."
else
  echo "Error: Git pull failed."
  exit 1
fi

# Install/update dependencies (e.g., Node.js, PHP Composer)
if [ -f "package.json" ]; then
  echo "Installing Node.js dependencies..."
  npm install --omit=dev # Or yarn install
fi

if [ -f "composer.json" ]; then
  echo "Installing PHP Composer dependencies..."
  composer install --no-dev --optimize-autoloader
fi

# Clear cache or run migrations (example, adjust as needed)
# php artisan cache:clear
# php artisan migrate --force

# Restart services
echo "Restarting web server and PHP-FPM services..."
sudo systemctl restart "${WEB_SERVER_SERVICE}"
sudo systemctl restart "${PHP_FPM_SERVICE}"

echo "Deployment complete for ${PROJECT_ROOT}!"