myceliumcloud-examples/docs/roadmap.md

MyceliumCloud Examples Roadmap

Comprehensive progression of Kubernetes examples designed to teach MyceliumCloud deployment patterns from beginner to advanced levels.

📋 Examples Progression

Completed Examples

1. Hello World ✅

• Difficulty: ⭐ Easy
• Status: ✅ COMPLETED
• Learning Focus: Basic Kubernetes deployment, service creation, port-forwarding
• Template: Established efficient pattern with hello-world.md + hello-world-deployment.yaml + hello-world-service.yaml
• Key Concepts: Pods, Deployments, Services, LoadBalancer, port-forward

2. Nginx Static Site ✅

• Difficulty: ⭐ Easy
• Status: ✅ COMPLETED
• Learning Focus: Static content serving, custom HTML, nginx configuration
• Template: Same efficient pattern with nginx-static.md + nginx-static-deployment.yaml + nginx-static-service.yaml + default-index.html
• Key Concepts: Static files, nginx deployment, custom configuration, ConfigMaps, HTML serving

3. Python Flask API ✅

• Difficulty: ⭐ Easy-Medium
• Status: ✅ COMPLETED
• Learning Focus: Application containerization, Python web services
• 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 ✅

• 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 ✅

• 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

• Difficulty: ⭐⭐⭐ Hard
• Status: 📋 Planned
• Learning Focus: Multi-container applications, CMS deployment
• Template: Same efficient pattern
• Key Concepts: Multi-container apps, database integration, CMS deployment

9. 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

• 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

• Difficulty: ⭐⭐⭐ Very Hard
• Status: 📋 Planned
• Learning Focus: Enterprise applications, file sharing, high availability
• Template: Same efficient pattern
• Key Concepts: Enterprise deployment, file services, advanced networking

🎯 Learning Progression Strategy

Easy Level (⭐)

Focus: Basic deployment and networking

• Hello World: Basic web app
• Nginx Static Site: Static content
• Python Flask API: Simple web service

Skills Taught:

• Pod creation and management
• Service types and networking
• Port-forwarding for external access
• Basic troubleshooting

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
• PostgreSQL Database: Persistent data

Skills Taught:

• 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
• Node.js API: Modern web development
• Jenkins CI/CD: Infrastructure automation

Skills Taught:

• Multi-container applications
• Complex networking patterns
• Enterprise application deployment
• DevOps and automation

Very Hard Level (⭐⭐⭐)

Focus: Advanced enterprise features

• Nextcloud: Full enterprise application

Skills Taught:

• High availability deployment
• Enterprise application patterns
• Advanced networking and security
• Production-ready configurations

🏗️ Standard Template Pattern

All examples follow the same efficient template pattern established with hello-world:

📁 example-name/
├── 📄 example-name.md              ← Complete guide + troubleshooting
├── 📄 example-name-deployment.yaml ← Application logic
└── 📄 example-name-service.yaml    ← Networking configuration

Template Benefits:

• ✅ Consistent structure across all examples
• ✅ Easy to copy and adapt for new examples
• ✅ Self-contained documentation in each example
• ✅ Clear separation of concerns (app vs networking)
• ✅ Proven pattern tested and working on MyceliumCloud

📚 Documentation Standards

Individual Example Structure

Each example includes:

• Quick Start Guide - 5-minute deployment
• Architecture Overview - What it does and why
• Step-by-Step Deployment - Copy-paste commands
• Testing Instructions - How to verify it works
• Troubleshooting Section - Common issues and solutions
• Cleanup Instructions - How to remove resources
• Pro Tips - Advanced usage and best practices

Example Pattern Consistency

• Easy Examples: 30-45 minutes to complete
• Medium Examples: 1-2 hours to complete
• Hard Examples: 2-4 hours to complete
• Very Hard Examples: 4+ hours to complete

🎓 Skills Matrix

Example	Containers	Persistence	Multi-Container	Load Balancing	Databases	APIs	DevOps	Enterprise	IPv6	Peer-to-Peer	NodePort	Multi-Replica
Hello World	✅	❌	❌	✅	❌	❌	❌	❌	❌	❌	❌	❌
Nginx Static	✅	❌	❌	✅	❌	❌	❌	❌	❌	❌	❌	❌
Python Flask	✅	❌	❌	✅	❌	✅	❌	❌	❌	❌	❌	❌
Nginx Mycelium IPv6	✅	❌	❌	✅	❌	❌	❌	❌	✅	✅	❌	❌
Redis Cache	✅	❌	❌	✅	✅	❌	❌	❌	❌	❌	❌	❌
Nginx NodePort Website	✅	❌	❌	✅	❌	❌	❌	❌	✅	❌	✅	✅
PostgreSQL	✅	✅	❌	✅	✅	❌	❌	❌	❌	❌	❌	❌
WordPress	✅	✅	✅	✅	✅	❌	❌	❌	❌	❌	❌	❌
Node.js API	✅	❌	❌	✅	❌	✅	❌	❌	❌	❌	❌	❌
Jenkins CI/CD	✅	✅	❌	✅	❌	❌	✅	❌	❌	❌	❌	❌
Nextcloud	✅	✅	✅	✅	✅	❌	❌	✅	❌	❌	❌	❌

🚀 Current Status & Next Steps

Completed Examples ✅

• 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)

Next Planned Example

1. PostgreSQL Database - Stateful database deployment
   • Copy nginx-nodeport template structure
   • Adapt for PostgreSQL database needs
   • Include persistent volume management
   • Test database connectivity and data persistence

Development Workflow (Proven Pattern)

1. Use Template: Copy from previous successful example
2. Adapt Content: Modify for specific application needs
3. Test on Cluster: Verify works on MyceliumCloud
4. Document Thoroughly: Include troubleshooting section
5. Verify Pattern: Ensure consistent with overall strategy

Quality Standards

• All examples must be end-to-end tested
• All examples must follow the standard template
• All examples must include troubleshooting sections
• All examples must be copy-paste ready
• All examples must include cleanup instructions

Special Focus Areas

• IPv6 Networking: Mycelium's unique capability for global IPv6 access
• Multi-Replica Scaling: Production-ready scaling patterns
• Worker Node Preferences: Best practices for separating control plane and worker workloads
• Network Debugging: Tools and techniques for troubleshooting connectivity issues

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Goal: Provide MyceliumCloud users with a complete learning path from basic Kubernetes deployment to enterprise application management, using proven patterns and consistent documentation, with special emphasis on IPv6 networking and production-ready scaling.