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Flow — 8-Phase Cloud-Native Todo Application
A todo app that evolved through 8 architectural phases — from console script to Kubernetes-deployed microservice with AI chatbot.
Last updated February 2026
Overview
This project documents the intentional evolution of a simple application across 8 distinct architectural phases: Console App → Full-Stack Web → AI Chatbot → Docker Containerization → Kubernetes Orchestration → Kafka Event Streaming → Dapr Microservices → OCI Cloud Deployment.
The AI chatbot layer uses Groq API for natural language task management with full conversation history. The production system runs on Oracle Cloud (OCI OKE) with Helm charts, NGINX Ingress, Dapr sidecar injection, and free-tier optimization.
8-Phase Evolution
- Console App
- Full-Stack Web
- AI Chatbot
- Docker Containerization
- Kubernetes Orchestration
- Kafka Event Streaming
- Dapr Microservices
- OCI Cloud Deployment
Key Features
- 8-phase architectural evolution (documented)
- AI chatbot with natural language task management
- Groq API integration with conversation history
- Kubernetes deployment with Helm 3
- Dapr sidecar injection for microservice communication
- Apache Kafka for event streaming
- 11+ Architecture Decision Records (ADRs)
- OCI free-tier production optimization
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