docs: Reorder roadmap examples to reflect completion status and improve progression flow

docs/roadmap.md

@@ -27,58 +27,65 @@ Comprehensive progression of Kubernetes examples designed to teach MyceliumCloud
 - **Template**: Same efficient pattern with `python-flask.md` + `python-flask-deployment.yaml` + `python-flask-service.yaml` + `app.py`
 - **Key Concepts**: Python containers, API development, HTTP services, JSON responses, RESTful design
 
-#### 4. Nginx Mycelium IPv6 Hosting ✅
-- **Difficulty**: ⭐⭐ Medium
-- **Status**: ✅ **COMPLETED**
-- **Learning Focus**: IPv6 web hosting, peer-to-peer networking, global accessibility
-- **Template**: Same efficient pattern with `nginx-mycelium.md` + `mycelium-website-nodeport.yaml` + supporting scripts
-- **Key Concepts**: IPv6-only hosting, hostNetwork deployment, peer-to-peer web hosting, global accessibility
-
-#### 5. Redis Cache ✅
+#### 4. Redis Cache ✅
 - **Difficulty**: ⭐⭐ Medium
 - **Status**: ✅ **COMPLETED**
 - **Learning Focus**: Data storage, caching patterns, stateful services
 - **Template**: Same efficient pattern with `redis-cache.md` + `redis-cache-deployment.yaml` + `redis-cache-service.yaml` + `web-interface.py`
 - **Key Concepts**: Redis deployment, data persistence, cache strategies, web interface
 
-#### 6. Nginx NodePort Website ✅
+#### 5. Nginx NodePort Website ✅
 - **Difficulty**: ⭐⭐ Medium
 - **Status**: ✅ **COMPLETED**
 - **Learning Focus**: Standard Kubernetes NodePort services, multi-replica scaling, worker node preferences
 - **Template**: Enhanced pattern with `nginx-nodeport.md` + `nginx-nodeport-deployment.yaml` + `nginx-nodeport-service.yaml` + `nginx-nodeport-configmaps.yaml` + supporting scripts (`update-content-single.sh`, `update-content-many.sh`, `debug-networking.sh`)
 - **Key Concepts**: NodePort services, IPv6 global access, multi-replica scaling, worker-only deployments, network debugging, production-ready scaling
 
-### Planned Examples (Future)
-
-#### 7. PostgreSQL Database
-- **Difficulty**: ⭐⭐ Medium
-- **Status**: 📋 Planned
-- **Learning Focus**: Stateful applications, database deployment
-- **Template**: Same efficient pattern
-- **Key Concepts**: Persistent volumes, databases, data persistence
-
-#### 8. WordPress ✅
+#### 6. WordPress ✅
 - **Difficulty**: ⭐⭐⭐ Hard
 - **Status**: ✅ **COMPLETED**
 - **Learning Focus**: Multi-container applications, CMS deployment, database integration
 - **Template**: Simple pattern with `wordpress.md` + `wordpress-deployment.yaml` + `wordpress-service.yaml`
 - **Key Concepts**: Multi-container pods, intra-pod database communication, CMS deployment, WordPress setup wizard, MariaDB integration
 
-#### 9. Node.js API
+#### 7. Nginx Load Balancer ✅
+- **Difficulty**: ⭐⭐ Medium
+- **Status**: ✅ **COMPLETED**
+- **Learning Focus**: Load balancing, multi-replica scaling, production patterns
+- **Template**: Enhanced pattern with 3 replicas and LoadBalancer service
+- **Key Concepts**: Load balancing, multi-replica scaling, production-ready deployments, automatic IPv6 assignment
+
+#### 8. Nginx Mycelium IPv6 Hosting ✅
+- **Difficulty**: ⭐⭐ Medium
+- **Status**: ✅ **COMPLETED**
+- **Learning Focus**: IPv6 web hosting, peer-to-peer networking, global accessibility
+- **Template**: Same efficient pattern with `nginx-mycelium.md` + `mycelium-website-nodeport.yaml` + supporting scripts
+- **Key Concepts**: IPv6-only hosting, hostNetwork deployment, peer-to-peer web hosting, global accessibility
+
+### Planned Examples (Future)
+
+#### 9. PostgreSQL Database
+- **Difficulty**: ⭐⭐ Medium
+- **Status**: 📋 Planned
+- **Learning Focus**: Stateful applications, database deployment
+- **Template**: Same efficient pattern
+- **Key Concepts**: Persistent volumes, databases, data persistence
+
+#### 10. Node.js API
 - **Difficulty**: ⭐⭐⭐ Hard
 - **Status**: 📋 Planned
 - **Learning Focus**: Modern web development, API services
 - **Template**: Same efficient pattern
 - **Key Concepts**: JavaScript/Node.js, API development, modern frameworks
 
-#### 10. Jenkins CI/CD
+#### 11. Jenkins CI/CD
 - **Difficulty**: ⭐⭐⭐ Hard
 - **Status**: 📋 Planned
 - **Learning Focus**: Infrastructure automation, CI/CD pipelines
 - **Template**: Same efficient pattern
 - **Key Concepts**: DevOps tools, automation, infrastructure as code
 
-#### 11. Nextcloud
+#### 12. Nextcloud
 - **Difficulty**: ⭐⭐⭐ Very Hard
 - **Status**: 📋 Planned
 - **Learning Focus**: Enterprise applications, file sharing, high availability
@@ -101,24 +108,25 @@ Comprehensive progression of Kubernetes examples designed to teach MyceliumCloud
 
 ### Medium Level (⭐⭐)
 **Focus**: Advanced networking and data services
-- Nginx Mycelium IPv6 Hosting: Peer-to-peer IPv6 web hosting
 - Redis Cache: In-memory data and caching
 - Nginx NodePort Website: Standard K8s NodePort services
+- Nginx Load Balancer: Load balancing with multi-replica scaling
+- Nginx Mycelium IPv6 Hosting: Peer-to-peer IPv6 web hosting
 - PostgreSQL Database: Persistent data
 
 **Skills Taught**:
+- Load balancing and multi-replica scaling
 - IPv6 networking and peer-to-peer hosting
 - Stateful vs stateless applications
 - Data persistence with volumes
 - Database deployment patterns
 - Service discovery
 - Global accessibility via IPv6
-- Multi-replica scaling
 - Production-ready deployments
 
 ### Hard Level (⭐⭐⭐)
 **Focus**: Complex applications and enterprise patterns
-- WordPress: Multi-container CMS
+- WordPress: Multi-container CMS with database integration
 - Node.js API: Modern web development
 - Jenkins CI/CD: Infrastructure automation
 
@@ -126,6 +134,7 @@ Comprehensive progression of Kubernetes examples designed to teach MyceliumCloud
 - Multi-container applications
 - Complex networking patterns
 - Enterprise application deployment
+- Database integration and CMS patterns
 - DevOps and automation
 
 ### Very Hard Level (⭐⭐⭐)
@@ -181,11 +190,11 @@ Each example includes:
 | Hello World | ✅ | ❌ | ❌ | ✅ | ❌ | ❌ | ❌ | ❌ | ❌ | ❌ | ❌ | ❌ |
 | Nginx Static | ✅ | ❌ | ❌ | ✅ | ❌ | ❌ | ❌ | ❌ | ❌ | ❌ | ❌ | ❌ |
 | Python Flask | ✅ | ❌ | ❌ | ✅ | ❌ | ✅ | ❌ | ❌ | ❌ | ❌ | ❌ | ❌ |
-| Nginx Mycelium IPv6 | ✅ | ❌ | ❌ | ✅ | ❌ | ❌ | ❌ | ❌ | ✅ | ✅ | ❌ | ❌ |
 | Redis Cache | ✅ | ❌ | ❌ | ✅ | ✅ | ❌ | ❌ | ❌ | ❌ | ❌ | ❌ | ❌ |
 | Nginx NodePort Website | ✅ | ❌ | ❌ | ✅ | ❌ | ❌ | ❌ | ❌ | ✅ | ❌ | ✅ | ✅ |
-| PostgreSQL | ✅ | ✅ | ❌ | ✅ | ✅ | ❌ | ❌ | ❌ | ❌ | ❌ | ❌ | ❌ |
+| Nginx Load Balancer | ✅ | ❌ | ❌ | ✅ | ❌ | ❌ | ❌ | ❌ | ✅ | ❌ | ❌ | ✅ |
 | WordPress | ✅ | ❌ | ✅ | ✅ | ✅ | ❌ | ❌ | ❌ | ❌ | ❌ | ❌ | ❌ |
+| PostgreSQL | ✅ | ✅ | ❌ | ✅ | ✅ | ❌ | ❌ | ❌ | ❌ | ❌ | ❌ | ❌ |
 | Node.js API | ✅ | ❌ | ❌ | ✅ | ❌ | ✅ | ❌ | ❌ | ❌ | ❌ | ❌ | ❌ |
 | Jenkins CI/CD | ✅ | ✅ | ❌ | ✅ | ❌ | ❌ | ✅ | ❌ | ❌ | ❌ | ❌ | ❌ |
 | Nextcloud | ✅ | ✅ | ✅ | ✅ | ✅ | ❌ | ❌ | ✅ | ❌ | ❌ | ❌ | ❌ |
@@ -196,9 +205,10 @@ Each example includes:
 - **Hello World** - Basic Kubernetes deployment (Completed)
 - **Nginx Static Site** - Static content serving (Completed)
 - **Python Flask API** - Web service development (Completed)
-- **Nginx Mycelium IPv6** - Peer-to-peer IPv6 web hosting (Completed)
 - **Redis Cache** - Data caching services (Completed)
 - **Nginx NodePort Website** - Standard K8s NodePort services with multi-replica scaling (Completed)
+- **Nginx Load Balancer** - Load balancing with 3 replicas and automatic IPv6 (Completed)
+- **Nginx Mycelium IPv6** - Peer-to-peer IPv6 web hosting (Completed)
 - **WordPress** - Multi-container CMS with MariaDB database (Completed)
 
 ### Next Planned Example