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ADVANCED_MONITORING.md

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+# Advanced Monitoring & Alerting Guide
+
+**Date**: 2025-01-27
+**Purpose**: Guide for advanced monitoring and alerting setup
+**Status**: Complete
+
+---
+
+## Overview
+
+This guide provides strategies for implementing advanced monitoring and alerting across the integrated workspace.
+
+---
+
+## Monitoring Stack
+
+### Components
+
+1. **Prometheus** - Metrics collection
+2. **Grafana** - Visualization and dashboards
+3. **Loki** - Log aggregation
+4. **Alertmanager** - Alert routing
+5. **Jaeger** - Distributed tracing
+
+---
+
+## Metrics Collection
+
+### Application Metrics
+
+#### Custom Metrics
+```typescript
+import { Counter, Histogram } from 'prom-client';
+
+const requestCounter = new Counter({
+  name: 'http_requests_total',
+  help: 'Total HTTP requests',
+  labelNames: ['method', 'route', 'status'],
+});
+
+const requestDuration = new Histogram({
+  name: 'http_request_duration_seconds',
+  help: 'HTTP request duration',
+  labelNames: ['method', 'route'],
+});
+```
+
+#### Business Metrics
+- Transaction volume
+- User activity
+- Revenue metrics
+- Conversion rates
+
+### Infrastructure Metrics
+
+#### System Metrics
+- CPU usage
+- Memory usage
+- Disk I/O
+- Network traffic
+
+#### Kubernetes Metrics
+- Pod status
+- Resource usage
+- Node health
+- Cluster capacity
+
+---
+
+## Dashboards
+
+### Application Dashboard
+
+**Key Panels**:
+- Request rate
+- Response times (p50, p95, p99)
+- Error rates
+- Active users
+
+### Infrastructure Dashboard
+
+**Key Panels**:
+- Resource utilization
+- Pod status
+- Node health
+- Network traffic
+
+### Business Dashboard
+
+**Key Panels**:
+- Transaction volume
+- Revenue metrics
+- User activity
+- Conversion rates
+
+---
+
+## Alerting Rules
+
+### Critical Alerts
+
+```yaml
+groups:
+  - name: critical
+    rules:
+      - alert: HighErrorRate
+        expr: rate(http_requests_total{status=~"5.."}[5m]) > 0.1
+        for: 5m
+        labels:
+          severity: critical
+        annotations:
+          summary: "High error rate detected"
+
+      - alert: ServiceDown
+        expr: up{job="api"} == 0
+        for: 1m
+        labels:
+          severity: critical
+        annotations:
+          summary: "Service is down"
+```
+
+### Warning Alerts
+
+```yaml
+      - alert: HighLatency
+        expr: histogram_quantile(0.95, http_request_duration_seconds) > 1
+        for: 10m
+        labels:
+          severity: warning
+        annotations:
+          summary: "High latency detected"
+```
+
+---
+
+## Log Aggregation
+
+### Structured Logging
+
+```typescript
+import winston from 'winston';
+
+const logger = winston.createLogger({
+  format: winston.format.json(),
+  transports: [
+    new winston.transports.Console(),
+  ],
+});
+
+logger.info('Request processed', {
+  method: 'GET',
+  path: '/api/users',
+  status: 200,
+  duration: 45,
+  userId: '123',
+});
+```
+
+### Log Levels
+- **ERROR**: Errors requiring attention
+- **WARN**: Warnings
+- **INFO**: Informational messages
+- **DEBUG**: Debug information
+
+---
+
+## Distributed Tracing
+
+### OpenTelemetry
+
+```typescript
+import { trace } from '@opentelemetry/api';
+
+const tracer = trace.getTracer('my-service');
+
+const span = tracer.startSpan('process-request');
+try {
+  // Process request
+  span.setStatus({ code: SpanStatusCode.OK });
+} catch (error) {
+  span.setStatus({ code: SpanStatusCode.ERROR });
+  span.recordException(error);
+} finally {
+  span.end();
+}
+```
+
+---
+
+## Best Practices
+
+### Metrics
+- Use consistent naming
+- Include relevant labels
+- Avoid high cardinality
+- Document metrics
+
+### Alerts
+- Set appropriate thresholds
+- Avoid alert fatigue
+- Use alert grouping
+- Test alert delivery
+
+### Logs
+- Use structured logging
+- Include correlation IDs
+- Don't log sensitive data
+- Set appropriate levels
+
+---
+
+**Last Updated**: 2025-01-27
+