433 lines
13 KiB
Markdown
433 lines
13 KiB
Markdown
# Nginx-Mycelium Multi-Service Implementation Plan
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## Executive Summary
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This document outlines the complete design and implementation plan for creating **three additional nginx-mycelium variants** that demonstrate different Kubernetes service exposure methods, providing users with multiple deployment options from simple to enterprise-grade.
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## 🎯 Objectives
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1. **Create nginx-nodeport/** - Standard NodePort service approach ✅ **COMPLETED**
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2. **Create nginx-load-balancer/** - LoadBalancer service approach
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3. **Create nginx-ingress/** - Ingress controller approach
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4. **Maintain nginx-mycelium/** - Original hostNetwork approach
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5. **Provide comprehensive comparison** - Help users choose best approach
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## 📋 Implementation Overview
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### Architecture Evolution
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```
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nginx-mycelium/ (hostNetwork)
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├── nginx-nodeport/ (NodePort Service)
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├── nginx-load-balancer/ (LoadBalancer Service)
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└── nginx-ingress/ (Ingress Controller)
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```
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### Design Principles
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- **Same Core Content**: All variants serve identical website content
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- **Progressive Complexity**: hostNetwork → NodePort → LoadBalancer → Ingress
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- **Consistent Documentation**: Follow nginx-mycelium template structure
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- **Production Focus**: Each approach optimized for different use cases
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- **Security Evolution**: hostNetwork (simple) → standard isolation
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---
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## 🏗️ Detailed Design Specifications
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## 1. nginx-nodeport/ Implementation
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### Purpose
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Provide **secure, standard Kubernetes** deployment option using NodePort services while maintaining full IPv6 global accessibility.
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### Architecture
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```yaml
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# Deployment: Standard pod without hostNetwork
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spec:
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hostNetwork: false # Remove hostNetwork
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containers:
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- name: nginx
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image: nginx:alpine
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ports:
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- containerPort: 8080 # No hostPort needed
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# Service: NodePort with IPv6 routing
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spec:
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type: NodePort
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externalTrafficPolicy: Local # Preserve IPv6 source IP
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ports:
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- port: 8080
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targetPort: 8080
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nodePort: 30090
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protocol: TCP
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```
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### Key Features
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- **Security**: Pod isolated from host network
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- **Standard**: Uses standard Kubernetes service patterns
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- **IPv6 Access**: `http://[mycelium-ipv6]:30090/`
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- **Port Awareness**: Clear port mapping (30090 external, 8080 internal)
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### Pros vs hostNetwork
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- ✅ Better security isolation
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- ✅ Standard K8s debugging patterns
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- ✅ No port conflicts between replicas
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- ✅ Easier monitoring and troubleshooting
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### Implementation Files
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```
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nginx-nodeport/
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├── nginx-nodeport.md # Complete guide
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├── nginx-nodeport-deployment.yaml # Standard deployment
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├── nginx-nodeport-service.yaml # NodePort service
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├── test-nodeport-ipv6.sh # Testing script
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└── compare-approaches.md # Comparison guide
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```
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---
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## 2. nginx-load-balancer/ Implementation
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### Purpose
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Provide **production-ready** LoadBalancer service approach for scalable, enterprise-grade IPv6 web hosting.
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### Architecture
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```yaml
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# Deployment: Same as NodePort
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spec:
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hostNetwork: false
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containers:
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- name: nginx
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image: nginx:alpine
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ports:
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- containerPort: 8080
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# Service: LoadBalancer with IPv6
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spec:
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type: LoadBalancer
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externalTrafficPolicy: Local # Preserve IPv6 source IP
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ports:
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- port: 8080
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targetPort: 8080
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protocol: TCP
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```
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### Key Features
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- **Production Ready**: Enterprise-grade deployment pattern
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- **Scalability**: Supports multiple replicas with automatic load balancing
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- **IPv6 Integration**: Mycelium assigns IPv6 addresses to service endpoints
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- **Standard Patterns**: Compatible with standard Kubernetes ecosystem
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### Mycelium IPv6 Load Balancing
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```bash
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# Expected IPv6 endpoints from Mycelium
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service/nginx-load-balancer-service
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EXTERNAL-IP: [476:c4f:b4cb:7205:ff0f:f56e:abea:6905]
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, [51d:3596:6cc3:81e7:ff0f:d546:3737:4c8c]
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```
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### Pros vs NodePort
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- ✅ Automatic load balancing across replicas
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- ✅ Enterprise-grade external IP assignment
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- ✅ No need for port management
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- ✅ Standard production patterns
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### Implementation Files
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```
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nginx-load-balancer/
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├── nginx-load-balancer.md # Complete guide
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├── nginx-load-balancer-deployment.yaml # Standard deployment
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├── nginx-load-balancer-service.yaml # LoadBalancer service
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├── multi-replica-scaling.sh # Scaling demonstration
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└── production-readiness.md # Production checklist
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```
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---
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## 3. nginx-ingress/ Implementation
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### Purpose
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Provide **enterprise-grade** multi-service IPv6 hosting with SSL termination, routing, and advanced features.
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### Architecture
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```yaml
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# Ingress Controller Deployment
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spec:
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hostNetwork: true # Required for ingress controller
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containers:
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- name: ingress-controller
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image: nginx/nginx-ingress:3.2.0-alpine
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ports:
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- containerPort: 80
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hostPort: 80
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- containerPort: 443
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hostPort: 443
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# Website Service
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spec:
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type: ClusterIP # Internal only
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ports:
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- port: 8080
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targetPort: 8080
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# Ingress Resource
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spec:
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rules:
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- host: mycelium-web.local # Or actual domain
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http:
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paths:
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- path: /
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pathType: Prefix
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backend:
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service:
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name: nginx-ingress-website
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port:
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number: 8080
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```
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### Key Features
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- **SSL Termination**: HTTPS support with certificates
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- **Multi-Service**: Support multiple websites on same infrastructure
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- **Advanced Routing**: Path-based routing, custom headers
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- **Production Features**: Rate limiting, authentication, monitoring
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### IPv6 Ingress Configuration
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```yaml
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# Ingress with IPv6 support
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metadata:
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annotations:
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nginx.ingress.kubernetes.io/enable-ipv6: "true"
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```
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### Pros vs LoadBalancer
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- ✅ SSL/TLS termination
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- ✅ Multi-service hosting capability
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- ✅ Advanced routing features
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- ✅ Enterprise monitoring and security
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### Implementation Files
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```
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nginx-ingress/
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├── nginx-ingress.md # Complete guide
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├── ingress-controller-deployment.yaml # Ingress controller
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├── nginx-ingress-website.yaml # Website service
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├── nginx-ingress.yaml # Ingress resource
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├── ingress-setup.sh # Setup automation
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├── ssl-setup.md # SSL configuration
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└── multi-service-examples.md # Multiple services demo
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```
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---
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## 🚀 Implementation Sequence
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### Phase 1: nginx-nodeport/ (Immediate)
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**Timeline**: 2-3 days
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**Priority**: High (security improvement)
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1. **Copy nginx-mycelium template**
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- Copy file structure from nginx-mycelium/
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- Update all configuration files
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- Adapt documentation
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2. **Modify deployment configuration**
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- Remove `hostNetwork: true`
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- Add standard service networking
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- Update ports and volume mounts
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3. **Create NodePort service**
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- Standard NodePort configuration
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- ExternalTrafficPolicy: Local
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- Port mapping (8080:30090)
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4. **Update documentation**
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- Follow template structure
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- Add security comparison section
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- Include troubleshooting for NodePort
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5. **Testing and validation**
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- Deploy on clean cluster
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- Verify IPv6 access: `http://[ipv6]:30090/`
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- Test multiple nodes
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- Document results
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### Phase 2: nginx-load-balancer/ (Short-term)
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**Timeline**: 3-4 days
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**Priority**: Medium (production feature)
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1. **Use nginx-nodeport as base**
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- Copy nodeport implementation
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- Modify service type to LoadBalancer
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- Update configuration
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2. **LoadBalancer service configuration**
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- Type: LoadBalancer
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- ExternalTrafficPolicy: Local
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- Remove nodePort specification
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3. **Multi-replica scaling**
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- Deploy with 3 replicas
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- Test load balancing
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- Document scaling patterns
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4. **Production readiness**
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- Add resource limits
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- Health checks
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- Monitoring endpoints
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5. **Testing and validation**
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- Deploy LoadBalancer service
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- Verify IPv6 endpoints from Mycelium
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- Test load balancing functionality
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### Phase 3: nginx-ingress/ (Medium-term)
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**Timeline**: 5-7 days
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**Priority**: Medium (enterprise feature)
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1. **Ingress controller deployment**
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- Deploy nginx-ingress controller
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- Configure for IPv6
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- Set up with hostNetwork (required)
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2. **Website service configuration**
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- Create ClusterIP service
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- Configure internal networking
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- Add health checks
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3. **Ingress resource setup**
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- Path-based routing
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- SSL configuration
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- Multiple hostname support
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4. **SSL/TLS setup**
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- Let's Encrypt integration
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- Certificate management
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- HTTPS testing
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5. **Multi-service demonstration**
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- Deploy multiple websites
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- Show routing capabilities
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- Document advanced features
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---
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## 📊 Comparison Matrix
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### Technical Comparison
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| Feature | hostNetwork | NodePort | LoadBalancer | Ingress |
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|---------|-------------|----------|--------------|---------|
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| **Security** | ⚠️ Low | ✅ Good | ✅ Good | ✅ Best |
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| **Simplicity** | ✅ Simple | ✅ Simple | ✅ Simple | 🔄 Complex |
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| **IPv6 Access** | ✅ Direct | ✅ Via NodePort | ✅ Auto IPv6 | ✅ Via Controller |
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| **Scalability** | ❌ Limited | ✅ Good | ✅ Best | ✅ Best |
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| **SSL Support** | ❌ Manual | ❌ Manual | ❌ Manual | ✅ Built-in |
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| **Multi-Service** | ❌ No | ❌ No | 🔄 Limited | ✅ Yes |
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| **Production Ready** | ⚠️ Demo | ✅ Good | ✅ Best | ✅ Best |
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| **Development** | ✅ Easy | ✅ Easy | ✅ Easy | 🔄 Advanced |
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### Use Case Recommendations
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| Use Case | Recommended Approach |
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|----------|---------------------|
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| **Learning/Demo** | hostNetwork (nginx-mycelium) |
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| **Secure Deployment** | NodePort (nginx-nodeport) |
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| **Production Service** | LoadBalancer (nginx-load-balancer) |
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| **Enterprise Application** | Ingress (nginx-ingress) |
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| **Multiple Websites** | Ingress (nginx-ingress) |
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| **SSL Required** | Ingress (nginx-ingress) |
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---
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## 🛠️ Implementation Resources
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### Required Tools
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- **kubectl** - Kubernetes cluster access
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- **helm** (optional) - Ingress controller management
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- **cert-manager** - SSL certificate management
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- **curl** - IPv6 testing
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- **netstat** - Port verification
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### Testing Requirements
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1. **IPv6 Connectivity**: Verify `ping6 [ipv6]` works
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2. **Service Access**: Test each service type
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3. **Load Balancing**: Multiple replica testing
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4. **SSL Testing**: HTTPS functionality
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5. **Security Verification**: Network isolation testing
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### Documentation Standards
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- **Template Compliance**: Follow nginx-mycelium.md structure
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- **Progressive Complexity**: Each example builds on previous
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- **Clear Comparisons**: Help users choose appropriate approach
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- **Production Focus**: Include production checklists
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- **Troubleshooting**: Comprehensive troubleshooting sections
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---
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## 🎯 Success Criteria
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### Technical Validation
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- ✅ All four approaches successfully deploy on Mycelium Cloud
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- ✅ IPv6 global accessibility confirmed for each approach
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- ✅ Security improvements demonstrated (hostNetwork → standard K8s)
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- ✅ Load balancing functionality verified
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- ✅ SSL termination working with Ingress
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### User Experience
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- ✅ Clear progression path from simple to advanced
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- ✅ Comprehensive troubleshooting for each approach
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- ✅ Production readiness checklists
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- ✅ Security tradeoffs clearly documented
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- ✅ Use case recommendations provided
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### Project Integration
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- ✅ Examples directory structure updated
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- ✅ Roadmap.md updated with new examples
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- ✅ Skills matrix enhanced
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- ✅ Next steps clearly defined
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---
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## 📋 Next Actions
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### Immediate (This Week) ✅ COMPLETED
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1. **✅ Implement nginx-nodeport/** - Security improvement
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- ✅ Standard NodePort service approach with IPv6 support
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- ✅ Worker node preferences for production deployments
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- ✅ Multi-replica scaling with proper content management
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- ✅ Network debugging tools and comprehensive documentation
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2. **✅ Deploy and test** on clean Mycelium cluster
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3. **✅ Document results** and validate approach
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- ✅ Fixed scaling issues and added debugging capabilities
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- ✅ Created production-ready deployment patterns
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- ✅ Updated roadmap and implementation plans
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### Short-term (Next Sprint)
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1. **Implement nginx-load-balancer/** - Production readiness
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2. **Multi-replica scaling** testing
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3. **Load balancing** validation
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### Medium-term (Future)
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1. **Implement nginx-ingress/** - Enterprise features
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2. **SSL certificate** integration
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3. **Multi-service** demonstrations
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---
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## 📚 Additional Resources
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### Reference Documentation
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- **Kubernetes Services**: Official K8s service documentation
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- **Mycelium Cloud**: Mycelium Cloud networking guide
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- **Nginx Ingress**: Official nginx-ingress documentation
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- **SSL/TLS**: Certificate management best practices
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### Community Support
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- **GitHub Issues**: Track implementation progress
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- **Community Examples**: Share usage patterns
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- **Best Practices**: Collect user feedback
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- **Success Stories**: Document real-world deployments
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---
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**Goal**: Provide Mycelium Cloud users with complete IPv6 web hosting options from simple demonstrations to enterprise-grade deployments, demonstrating Mycelium's capability for diverse web hosting scenarios while maintaining the proven IPv6 global accessibility. |