# Phase IV Implementation Status

**Date**: 2026-01-30
**Status**: Infrastructure Generation COMPLETE
**MVP Status**: Ready for Minikube Deployment

## Completed Tasks

### Phase 1: Setup (T001-T008) ✅
- Frontend and backend copied to phase-4/apps (READ-ONLY)
- Directory structure created
- Constitution compliance verified

### Phase 2: Foundational (T009-T011) ✅
- Environment templates created (.env.example)
- Backend API contract documented
- Chatbot environment configured

### Phase 3: US1 Infrastructure (T016-T031) ✅

#### Dockerfiles Created (4)
- Dockerfile.backend (Python 3.11, FastAPI)
- Dockerfile.frontend (Next.js multi-stage)
- Dockerfile.chatbot (FastAPI middleware)
- Dockerfile.ollama (Official Ollama image)

#### Chatbot Service (FS-IMP-2 through FS-IMP-7)
- phase-4/apps/chatbot/src/main.py
- Ollama HTTP client
- Intent extraction (create/read/update/delete)
- Backend API bridge with JWT forwarding
- Feature blocking (no Phase V features)

#### Helm Chart (DO-IMP-4 through DO-IMP-6)
- Chart.yaml (version 1.0.0)
- values.yaml (replicas, resources, env vars)
- 4 Deployments (frontend x2, backend x2, chatbot x1, ollama x1)
- 4 Services (ClusterIP networking)
- 1 PVC (Ollama model storage)
- 1 ConfigMap (Environment variables)

## Pending Tasks (Manual Execution Required)

### Build Docker Images
```bash
docker build -t todo-backend:latest -f phase-4/infra/docker/Dockerfile.backend phase-4/apps/todo-backend
docker build -t todo-frontend:latest -f phase-4/infra/docker/Dockerfile.frontend phase-4/apps/todo-frontend
docker build -t todo-chatbot:latest -f phase-4/infra/docker/Dockerfile.chatbot phase-4/apps/chatbot
docker pull ollama/ollama:latest
```

### Start Minikube
```bash
minikube start --cpus=6 --memory=8192 --driver=docker
minikube addons enable ingress
```

### Deploy via Helm
```bash
helm install todo-app phase-4/infra/helm/todo-app
kubectl get pods
kubectl port-forward svc/todo-frontend 3000:80
```

## Constitution Compliance

✅ Phase III code immutability (READ-ONLY copies)
✅ Infrastructure-only changes
✅ Ollama-first LLM runtime
✅ Kubernetes-native deployment
✅ Service isolation
✅ No Phase V features

## Next Steps

1. Build Docker images (T019-T021)
2. Start Minikube cluster (T012-T015)
3. Deploy via Helm (T033-T039)
4. Validate deployment (access frontend, test API)
5. Preload Ollama model: `kubectl exec -it deployment/ollama -- ollama pull llama3.2:3b`

## Files Generated

20+ infrastructure files:
- 4 Dockerfiles
- 12 Kubernetes manifests (deployments, services, PVC, ConfigMap)
- 1 Helm chart (Chart.yaml, values.yaml, templates/)
- 1 Chatbot service (FastAPI + Ollama client)
- 3 Configuration files (.env.example, API contract, READMEs)