AI DevOps Automation Engineer Agent

# AI-powered anomaly detection for system metrics
import numpy as np
from sklearn.ensemble import IsolationForest
import pandas as pd

class PredictiveMonitoring:
    def __init__(self):
        self.model = IsolationForest(
            contamination=0.1,
            random_state=42
        )
        self.baseline_data = []
    
    def train_baseline(self, historical_metrics):
        """Train on normal operating conditions"""
        df = pd.DataFrame(historical_metrics)
        features = df[['cpu_usage', 'memory_usage', 'response_time', 'error_rate']]
        self.model.fit(features)
        self.baseline_data = features.describe()
    
    def detect_anomalies(self, current_metrics):
        """Detect anomalous behavior in real-time"""
        df = pd.DataFrame([current_metrics])
        features = df[['cpu_usage', 'memory_usage', 'response_time', 'error_rate']]
        
        prediction = self.model.predict(features)
        anomaly_score = self.model.score_samples(features)
        
        if prediction[0] == -1:  # Anomaly detected
            return {
                'is_anomaly': True,
                'severity': self._calculate_severity(anomaly_score[0]),
                'affected_metrics': self._identify_affected_metrics(current_metrics),
                'recommended_action': self._recommend_action(current_metrics)
            }
        
        return {'is_anomaly': False}
    
    def _calculate_severity(self, score):
        if score < -0.5:
            return 'critical'
        elif score < -0.3:
            return 'high'
        elif score < -0.1:
            return 'medium'
        return 'low'
    
    def _identify_affected_metrics(self, metrics):
        affected = []
        for metric, value in metrics.items():
            baseline_mean = self.baseline_data[metric]['mean']
            baseline_std = self.baseline_data[metric]['std']
            
            if abs(value - baseline_mean) > 2 * baseline_std:
                affected.append(metric)
        
        return affected
    
    def _recommend_action(self, metrics):
        if metrics['error_rate'] > 5:
            return 'rollback_deployment'
        elif metrics['cpu_usage'] > 90:
            return 'scale_up'
        elif metrics['memory_usage'] > 85:
            return 'restart_services'
        elif metrics['response_time'] > 1000:
            return 'investigate_database'
        return 'monitor_closely'

# Self-healing system with automated remediation
import boto3
import requests
from typing import Dict, List

class SelfHealingSystem:
    def __init__(self):
        self.ec2 = boto3.client('ec2')
        self.ecs = boto3.client('ecs')
        self.remediation_history = []
    
    def handle_incident(self, incident: Dict):
        """Automatically respond to detected incidents"""
        incident_type = incident['type']
        severity = incident['severity']
        
        # Log incident
        self._log_incident(incident)
        
        # Determine remediation strategy
        remediation = self._select_remediation(incident_type, severity)
        
        # Execute remediation
        result = self._execute_remediation(remediation, incident)
        
        # Verify remediation
        if self._verify_remediation(incident):
            self._send_notification(
                f"Successfully remediated {incident_type}",
                severity='info'
            )
        else:
            self._escalate_to_human(incident, result)
        
        return result
    
    def _select_remediation(self, incident_type, severity):
        strategies = {
            'high_cpu': [
                'scale_horizontal',
                'restart_high_cpu_processes',
                'enable_cpu_throttling'
            ],
            'high_memory': [
                'clear_caches',
                'restart_services',
                'scale_vertical'
            ],
            'high_error_rate': [
                'rollback_deployment',
                'restart_services',
                'switch_to_backup'
            ],
            'service_down': [
                'restart_service',
                'failover_to_backup',
                'restore_from_snapshot'
            ]
        }
        
        return strategies.get(incident_type, ['manual_intervention'])
    
    def _execute_remediation(self, strategies: List[str], incident: Dict):
        for strategy in strategies:
            try:
                if strategy == 'scale_horizontal':
                    return self._scale_services(incident['service_id'], direction='out')
                elif strategy == 'restart_services':
                    return self._restart_services(incident['service_id'])
                elif strategy == 'rollback_deployment':
                    return self._rollback_deployment(incident['deployment_id'])
                elif strategy == 'clear_caches':
                    return self._clear_caches(incident['service_id'])
            except Exception as e:
                continue  # Try next strategy
        
        return {'success': False, 'message': 'All strategies failed'}
    
    def _scale_services(self, service_id, direction='out'):
        response = self.ecs.update_service(
            cluster='production',
            service=service_id,
            desiredCount=self._calculate_desired_count(service_id, direction)
        )
        return {'success': True, 'action': 'scaled', 'response': response}
    
    def _restart_services(self, service_id):
        self.ecs.update_service(
            cluster='production',
            service=service_id,
            forceNewDeployment=True
        )
        return {'success': True, 'action': 'restarted'}
    
    def _rollback_deployment(self, deployment_id):
        # Rollback to previous stable version
        previous_version = self._get_previous_stable_version(deployment_id)
        self._deploy_version(previous_version)
        return {'success': True, 'action': 'rolled_back'}

# .github/workflows/ai-optimized-deploy.yml
name: AI-Optimized Deployment

on:
  push:
    branches: [main]

jobs:
  analyze-changes:
    runs-on: ubuntu-latest
    outputs:
      affected-services: ${{ steps.analyze.outputs.services }}
      deployment-strategy: ${{ steps.analyze.outputs.strategy }}
    steps:
      - uses: actions/checkout@v3
        with:
          fetch-depth: 0
      
      - name: AI-Powered Change Analysis
        id: analyze
        run: |
          python scripts/ai_analyze_changes.py \
            --base-ref ${{ github.event.before }} \
            --head-ref ${{ github.sha }} \
            --output-format github
      
      - name: Predict Deployment Risk
        run: |
          python scripts/predict_deployment_risk.py \
            --changes "${{ steps.analyze.outputs.services }}" \
            --historical-data deployment_history.json
  
  intelligent-testing:
    needs: analyze-changes
    runs-on: ubuntu-latest
    steps:
      - name: Run Prioritized Tests
        run: |
          # AI selects most relevant tests based on changes
          python scripts/ai_test_selection.py \
            --affected-files "${{ needs.analyze-changes.outputs.affected-services }}" \
            --run-tests
      
      - name: Predictive Test Analysis
        if: failure()
        run: |
          python scripts/analyze_test_failures.py \
            --suggest-fixes
  
  deploy:
    needs: [analyze-changes, intelligent-testing]
    runs-on: ubuntu-latest
    strategy:
      matrix:
        service: ${{ fromJson(needs.analyze-changes.outputs.affected-services) }}
    steps:
      - name: Deploy with AI-Selected Strategy
        run: |
          STRATEGY="${{ needs.analyze-changes.outputs.deployment-strategy }}"
          
          if [ "$STRATEGY" == "canary" ]; then
            kubectl apply -f k8s/canary-deployment.yaml
            python scripts/monitor_canary.py --duration 10m
          elif [ "$STRATEGY" == "blue-green" ]; then
            kubectl apply -f k8s/green-deployment.yaml
            python scripts/switch_traffic.py --validate
          else
            kubectl apply -f k8s/rolling-deployment.yaml
          fi
      
      - name: AI-Powered Health Check
        run: |
          python scripts/ai_health_check.py \
            --service ${{ matrix.service }} \
            --auto-rollback-on-failure

# AI-driven resource optimization
import pandas as pd
from sklearn.preprocessing import StandardScaler
from sklearn.cluster import KMeans

class ResourceOptimizer:
    def __init__(self):
        self.scaler = StandardScaler()
        self.usage_patterns = {}
    
    def analyze_usage_patterns(self, historical_data):
        """Identify usage patterns and recommend optimizations"""
        df = pd.DataFrame(historical_data)
        
        # Extract temporal features
        df['hour'] = pd.to_datetime(df['timestamp']).dt.hour
        df['day_of_week'] = pd.to_datetime(df['timestamp']).dt.dayofweek
        
        # Cluster similar usage patterns
        features = df[['cpu_usage', 'memory_usage', 'requests_per_sec', 'hour', 'day_of_week']]
        scaled_features = self.scaler.fit_transform(features)
        
        kmeans = KMeans(n_clusters=4, random_state=42)
        df['cluster'] = kmeans.fit_predict(scaled_features)
        
        # Analyze each cluster
        for cluster_id in range(4):
            cluster_data = df[df['cluster'] == cluster_id]
            self.usage_patterns[cluster_id] = {
                'avg_cpu': cluster_data['cpu_usage'].mean(),
                'avg_memory': cluster_data['memory_usage'].mean(),
                'peak_hours': self._identify_peak_hours(cluster_data),
                'recommendation': self._generate_recommendation(cluster_data)
            }
        
        return self.usage_patterns
    
    def _identify_peak_hours(self, data):
        hourly_avg = data.groupby('hour')['requests_per_sec'].mean()
        peak_threshold = hourly_avg.mean() + hourly_avg.std()
        return hourly_avg[hourly_avg > peak_threshold].index.tolist()
    
    def _generate_recommendation(self, data):
        avg_cpu = data['cpu_usage'].mean()
        avg_memory = data['memory_usage'].mean()
        
        recommendations = []
        
        if avg_cpu < 30:
            recommendations.append('Consider downsizing instance type')
        elif avg_cpu > 70:
            recommendations.append('Consider upsizing or horizontal scaling')
        
        if avg_memory < 40:
            recommendations.append('Reduce memory allocation')
        elif avg_memory > 80:
            recommendations.append('Increase memory allocation')
        
        return recommendations
    
    def get_autoscaling_schedule(self, service_id):
        """Generate intelligent autoscaling schedule"""
        pattern = self.usage_patterns.get(service_id, {})
        peak_hours = pattern.get('peak_hours', [])
        
        schedule = {
            'scale_up': [
                {
                    'time': f"{hour-1}:00",
                    'target_count': self._calculate_target_count('high')
                }
                for hour in peak_hours
            ],
            'scale_down': [
                {
                    'time': f"{hour+2}:00",
                    'target_count': self._calculate_target_count('low')
                }
                for hour in peak_hours
            ]
        }
        
        return schedule

# AI-powered security scanner
from typing import List, Dict
import subprocess
import json

class AISecurityScanner:
    def __init__(self):
        self.vulnerability_db = self._load_vulnerability_db()
        self.risk_model = self._train_risk_model()
    
    def scan_infrastructure(self) -> Dict:
        """Comprehensive security scan with AI prioritization"""
        results = {
            'container_vulnerabilities': self._scan_containers(),
            'iac_security': self._scan_terraform(),
            'secrets_detection': self._scan_secrets(),
            'compliance_checks': self._check_compliance()
        }
        
        # AI-driven prioritization
        prioritized = self._prioritize_findings(results)
        
        # Auto-remediate low-risk issues
        self._auto_remediate(prioritized['auto_fix'])
        
        # Alert on high-risk issues
        self._alert_security_team(prioritized['critical'])
        
        return prioritized
    
    def _scan_containers(self) -> List[Dict]:
        """Scan container images for vulnerabilities"""
        result = subprocess.run(
            ['trivy', 'image', '--format', 'json', '--severity', 'HIGH,CRITICAL', 'myapp:latest'],
            capture_output=True,
            text=True
        )
        
        vulnerabilities = json.loads(result.stdout)
        return self._enrich_vulnerabilities(vulnerabilities)
    
    def _scan_terraform(self) -> List[Dict]:
        """Scan Infrastructure as Code"""
        result = subprocess.run(
            ['tfsec', '.', '--format', 'json'],
            capture_output=True,
            text=True
        )
        return json.loads(result.stdout)
    
    def _prioritize_findings(self, results: Dict) -> Dict:
        """Use AI to prioritize security findings"""
        all_findings = []
        
        for category, findings in results.items():
            for finding in findings:
                risk_score = self._calculate_risk_score(finding)
                finding['risk_score'] = risk_score
                finding['category'] = category
                all_findings.append(finding)
        
        # Sort by risk score
        sorted_findings = sorted(all_findings, key=lambda x: x['risk_score'], reverse=True)
        
        return {
            'critical': [f for f in sorted_findings if f['risk_score'] > 8],
            'high': [f for f in sorted_findings if 6 < f['risk_score'] <= 8],
            'medium': [f for f in sorted_findings if 4 < f['risk_score'] <= 6],
            'auto_fix': [f for f in sorted_findings if f['risk_score'] <= 4 and f.get('auto_fixable')]
        }
    
    def _calculate_risk_score(self, finding: Dict) -> float:
        """AI model to calculate risk score"""
        base_score = finding.get('cvss_score', 5.0)
        
        # Adjust based on context
        if finding.get('exploitable'):
            base_score += 2
        if finding.get('public_facing'):
            base_score += 1
        if finding.get('has_patch'):
            base_score -= 1
        
        return min(base_score, 10.0)

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