Add apps/cluster-health-dashboard/dashboard_preview.md
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apps/cluster-health-dashboard/dashboard_preview.md
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apps/cluster-health-dashboard/dashboard_preview.md
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# 📊 Dashboard Preview
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## What the Dashboard Looks Like
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```
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╔═══════════════════════════════════════════════════════════════════╗
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║ ☸️ Kubernetes Cluster Health Dashboard ║
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║ Generated: 2025-01-08 08:00:00 | Period: 24h ║
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╚═══════════════════════════════════════════════════════════════════╝
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┌─────────────────────┬─────────────────────┬─────────────────────┬─────────────────────┐
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│ 📋 Cluster Info │ 💻 Resource Capacity│ 📦 Pod Status │ 💰 Monthly Costs │
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│ │ │ │ │
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│ K8s Version │ Total CPU │ Running 45 ✅ │ CPU $48.00 │
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│ v1.28.0 │ 12 cores │ Pending 2 ⏳ │ Memory $36.00 │
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│ │ │ Failed 1 ❌ │ ─────────────────── │
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│ Nodes 3 │ Total Memory │ Restarts 8 │ Total $84.00 │
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│ Namespaces 14 │ 48 GB │ │ │
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│ Total Pods 48 │ │ │ 💡 Adjust pricing │
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│ │ Avg CPU Usage │ │ in Jenkinsfile │
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│ │ 23.5% │ │ │
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│ │ ████░░░░░░░░ │ │ │
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└─────────────────────┴─────────────────────┴─────────────────────┴─────────────────────┘
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┌─────────────────────────────────────────────────────────────────────────────────────┐
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│ 🔍 Health Checks & Issues │
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│ │
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│ ⚠️ High pod restart count: 15 │
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│ ❌ 1 pods in Failed state │
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│ ⚠️ 2 pods in Pending state (possible resource constraints) │
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│ │
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└─────────────────────────────────────────────────────────────────────────────────────┘
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┌─────────────────────────────────────────────────────────────────────────────────────┐
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│ 📊 Resources by Namespace │
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│ │
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│ Namespace │ Pods │ Containers │
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│ ────────────────────────────────────────── │
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│ monitoring │ 12 │ 24 │
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│ jenkins │ 8 │ 16 │
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│ argocd │ 7 │ 14 │
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│ demo-app │ 5 │ 10 │
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│ kube-system │ 4 │ 8 │
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│ ... │ ... │ ... │
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│ │
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└─────────────────────────────────────────────────────────────────────────────────────┘
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Generated by Jenkins CI/CD Pipeline • Build #42
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```
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## Key Features
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### 1. **Real-time Metrics**
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- CPU usage with visual progress bar
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- Memory utilization
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- Network I/O
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- Pod status breakdown
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### 2. **Cost Tracking**
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- Monthly cost estimates
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- Breakdown by CPU and Memory
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- Adjustable pricing rates
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### 3. **Health Monitoring**
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- Automatic issue detection
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- Failed/Pending pod alerts
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- High restart count warnings
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- Resource constraint detection
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### 4. **Namespace Analysis**
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- Pod count per namespace
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- Container count
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- Sorted by usage (highest first)
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### 5. **Interactive HTML**
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- Hover effects on tables
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- Color-coded status (green/yellow/red)
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- Responsive design
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- Beautiful gradient background
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### 6. **Exportable Data**
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- JSON report with all metrics
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- CSV-ready format
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- Historical tracking ready
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## Dashboard Sections
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### Header
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```
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☸️ Kubernetes Cluster Health Dashboard
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Generated: 2025-01-08 08:00:00 | Period: 24h
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```
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### Cluster Overview (4 Cards)
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```
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┌─────────────┐ ┌─────────────┐ ┌─────────────┐ ┌─────────────┐
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│ Cluster │ │ Resources │ │ Pod Status │ │ Costs │
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│ Information │ │ Capacity │ │ │ │ │
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└─────────────┘ └─────────────┘ └─────────────┘ └─────────────┘
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```
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### Issues Section
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```
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🔍 Health Checks & Issues
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━━━━━━━━━━━━━━━━━━━━━━
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⚠️ Potential issues detected
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❌ Action required
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✅ All clear (when no issues)
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```
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### Namespace Details Table
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```
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📊 Resources by Namespace
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━━━━━━━━━━━━━━━━━━━━━━━━
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Sortable table with:
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- Namespace name
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- Pod count
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- Container count
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- Hover highlight
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```
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### Footer
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```
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Generated by Jenkins CI/CD Pipeline • Build #42
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[Jenkins Logo] [Kubernetes Logo]
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```
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## Color Scheme
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### Status Colors
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- 🟢 **Green (#10b981):** Success, Running, All clear
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- 🟡 **Yellow (#f59e0b):** Warning, Pending, Attention needed
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- 🔴 **Red (#ef4444):** Error, Failed, Critical
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### UI Colors
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- **Primary Gradient:** Purple to Blue (#667eea → #764ba2)
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- **Background:** White cards on gradient
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- **Text:** Dark gray (#333) on light background
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- **Borders:** Light gray (#f0f0f0)
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### Example CSS
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```css
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.metric-value.success { color: #10b981; }
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.metric-value.warning { color: #f59e0b; }
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.metric-value.error { color: #ef4444; }
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.progress-fill {
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background: linear-gradient(90deg, #667eea 0%, #764ba2 100%);
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}
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```
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## Responsive Design
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### Desktop (>1200px)
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- 4-column grid layout
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- Full-width tables
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- Large fonts
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### Tablet (768px - 1200px)
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- 2-column grid
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- Adjusted table columns
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- Medium fonts
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### Mobile (<768px)
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- Single column stack
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- Scrollable tables
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- Smaller fonts
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## Accessibility
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- ✅ High contrast text
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- ✅ Clear visual hierarchy
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- ✅ Color-blind friendly (icons + colors)
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- ✅ Screen reader compatible
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- ✅ Keyboard navigation
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## Browser Compatibility
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- ✅ Chrome/Edge (latest)
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- ✅ Firefox (latest)
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- ✅ Safari (latest)
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- ✅ Mobile browsers
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## Performance
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- Fast loading (<1s)
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- No external dependencies
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- Inline CSS (single file)
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- Optimized images
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- Cached assets
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## Example Use Cases
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### 1. Daily Stand-up
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```
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Team: "What's our cluster status?"
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→ Open dashboard
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→ See: 45 running pods, 2 pending
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→ Discuss: Why pending? Resource constraints?
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```
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### 2. Cost Review
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```
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Manager: "How much are we spending?"
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→ Dashboard shows: $84/month
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→ Last month: $72/month
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→ Analysis: 15% increase
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→ Action: Check which namespace grew
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```
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### 3. Capacity Planning
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```
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DevOps: "Can we deploy new service?"
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→ Dashboard: CPU 23.5%, Memory adequate
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→ Decision: Yes, plenty of capacity
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→ OR: CPU 87%, need more nodes
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```
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### 4. Troubleshooting
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```
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Alert: "App is slow"
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→ Dashboard: 15 pod restarts detected
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→ Namespace table: monitoring namespace
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→ Action: Check monitoring pods
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```
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### 5. Executive Report
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```
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CTO: "How's infrastructure?"
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→ Email dashboard
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→ See: Green status, costs under budget
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→ Confidence: All systems healthy
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```
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## Future Enhancements
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Possible additions:
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- 📈 Historical graphs (trends over time)
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- 🔔 Real-time alerts
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- 📊 Drill-down per namespace
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- 💾 Export to PDF
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- 📧 Scheduled email reports
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- 📱 Mobile app view
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- 🔄 Auto-refresh
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- 🎨 Custom themes
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- 📍 Multi-cluster view
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- 🤖 AI recommendations
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## Implementation Notes
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- Pure HTML/CSS (no JavaScript required)
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- Single file deployment
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- Jenkins HTML Publisher plugin
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- Generated from Groovy template
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- Embedded Chart.js (optional)
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- Data from Prometheus + kubectl
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---
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**The dashboard provides at-a-glance cluster health visibility!** 👁️✨
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