ecosystem.config.js

module.exports = {
  apps: [{
    name: 'ac-api',
    script: './api/start.js',
    
    // Auto-restart configuration
    autorestart: true,                    // Auto restart if process crashes
    max_restarts: 10,                     // Max restarts in 1 minute before giving up
    min_uptime: '10s',                    // Min uptime before considering app stable
    
    // Exponential backoff restart delay to prevent rapid restarts
    exp_backoff_restart_delay: 100,       // Start with 100ms delay, increases exponentially
    
    // Memory management
    max_memory_restart: '500M',           // Restart if memory usage exceeds 500MB
    
    // Environment
    env: {
      NODE_ENV: 'production',
      API_PORT: process.env.API_PORT || 4321,
      API_HOST: process.env.API_HOST || '127.0.0.1'
    },
    
    // Logging disabled by default in production
    // Uncomment and create ./logs directory if you need logging:
    // log_file: './logs/api-combined.log',
    // out_file: './logs/api-out.log', 
    // error_file: './logs/api-error.log',
    // log_date_format: 'YYYY-MM-DD HH:mm:ss Z',
    
    // Process management
    instances: 1,                         // Single instance for simplicity
    exec_mode: 'fork',                   // Fork mode (vs cluster)
    
    // Health monitoring
    health_check_grace_period: 3000,     // Grace period for health checks
    
    // Optional: Restart daily at 3 AM to clear any potential memory leaks
    // cron_restart: '0 3 * * *',
    
    // Don't restart on clean exit (exit code 0)
    stop_exit_codes: [0],
    
    // Kill timeout
    kill_timeout: 5000
  }]
};