Cost Analysis

Cost Analysis

Understanding the total cost of ownership for each tool:

# Cost comparison calculator

class CostCalculator:
    def __init__(self, num_developers: int, num_containers: int, scans_per_month: int):
        self.num_developers = num_developers
        self.num_containers = num_containers
        self.scans_per_month = scans_per_month
        
    def calculate_trivy_costs(self) -> Dict:
        """Calculate costs for Trivy implementation"""
        costs = {
            'software_license': 0,  # Open source
            'infrastructure': {
                'description': 'Self-hosted scanning infrastructure',
                'compute': self.scans_per_month * 0.001,  # Estimated compute cost
                'storage': 10,  # Database storage
                'network': 5   # Minimal network costs
            },
            'operational': {
                'description': 'DevOps time for maintenance',
                'hours_per_month': 10,
                'hourly_rate': 150,
                'monthly_cost': 10 * 150
            },
            'training': {
                'initial': self.num_developers * 50,  # Basic training
                'ongoing': self.num_developers * 10   # Monthly knowledge sharing
            }
        }
        
        costs['total_monthly'] = (
            costs['software_license'] +
            sum(costs['infrastructure'].values()) - 
            costs['infrastructure']['description'] +
            costs['operational']['monthly_cost'] +
            costs['training']['ongoing']
        )
        
        costs['total_annual'] = (
            costs['total_monthly'] * 12 +
            costs['training']['initial']
        )
        
        return costs
    
    def calculate_snyk_costs(self) -> Dict:
        """Calculate costs for Snyk implementation"""
        # Snyk pricing tiers (estimated)
        if self.num_developers <= 5:
            base_cost = 0  # Free tier
        elif self.num_developers <= 10:
            base_cost = 599  # Team tier
        else:
            base_cost = self.num_developers * 79  # Enterprise estimate
            
        costs = {
            'software_license': base_cost,
            'infrastructure': {
                'description': 'Cloud-based service',
                'compute': 0,  # Included in license
                'storage': 0,  # Included in license
                'network': 0   # Included in license
            },
            'operational': {
                'description': 'Reduced operational overhead',
                'hours_per_month': 2,
                'hourly_rate': 150,
                'monthly_cost': 2 * 150
            },
            'training': {
                'initial': self.num_developers * 100,  # Comprehensive training
                'ongoing': self.num_developers * 5     # Self-service learning
            },
            'additional_features': {
                'continuous_monitoring': 'Included',
                'fix_prs': 'Included',
                'reporting': 'Included'
            }
        }
        
        costs['total_monthly'] = (
            costs['software_license'] +
            costs['operational']['monthly_cost'] +
            costs['training']['ongoing']
        )
        
        costs['total_annual'] = (
            costs['total_monthly'] * 12 +
            costs['training']['initial']
        )
        
        return costs
    
    def generate_roi_comparison(self) -> Dict:
        """Calculate ROI metrics for both tools"""
        trivy_costs = self.calculate_trivy_costs()
        snyk_costs = self.calculate_snyk_costs()
        
        # Estimate security incident prevention value
        prevented_incidents = self.scans_per_month * 0.001  # 0.1% prevention rate
        incident_cost = 50000  # Average incident cost
        
        security_value = prevented_incidents * incident_cost * 12
        
        return {
            'trivy_roi': (security_value - trivy_costs['total_annual']) / trivy_costs['total_annual'],
            'snyk_roi': (security_value - snyk_costs['total_annual']) / snyk_costs['total_annual'],
            'breakeven_months': {
                'trivy': trivy_costs['total_annual'] / (security_value / 12),
                'snyk': snyk_costs['total_annual'] / (security_value / 12)
            }
        }