157 lines
5.4 KiB
Markdown
157 lines
5.4 KiB
Markdown
# EveAI Kubernetes Ingress Migration - Complete Implementation
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## Migration Summary
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The migration from nginx reverse proxy to Kubernetes Ingress has been successfully implemented. This migration provides a production-ready, native Kubernetes solution for HTTP routing.
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## Changes Made
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### 1. Setup Script Updates
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**File: `setup-dev-cluster.sh`**
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- ✅ Added `install_ingress_controller()` function
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- ✅ Automatically installs NGINX Ingress Controller for Kind
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- ✅ Updated main() function to include Ingress Controller installation
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- ✅ Updated final output to show Ingress-based access URLs
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### 2. New Configuration Files
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**File: `static-files-service.yaml`** ✅
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- ConfigMap with nginx configuration for static file serving
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- Deployment with initContainer to copy static files from existing nginx image
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- Service (ClusterIP) for internal access
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- Optimized for production with proper caching headers
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**File: `eveai-ingress.yaml`** ✅
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- Ingress resource with path-based routing
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- Routes: `/static/`, `/admin/`, `/api/`, `/chat-client/`, `/`
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- Proper annotations for proxy settings and URL rewriting
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- Host-based routing for `minty.ask-eve-ai-local.com`
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**File: `monitoring-services.yaml`** ✅
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- Extracted monitoring services from nginx-monitoring-services.yaml
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- Contains: Flower, Prometheus, Grafana deployments and services
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- No nginx components included
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### 3. Deployment Script Updates
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**File: `deploy-all-services.sh`**
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- ✅ Replaced `deploy_nginx_monitoring()` with `deploy_static_ingress()` and `deploy_monitoring_only()`
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- ✅ Added `test_connectivity_ingress()` function for Ingress endpoint testing
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- ✅ Added `show_connection_info_ingress()` function with updated URLs
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- ✅ Updated main() function to use new deployment functions
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## Architecture Changes
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### Before (nginx reverse proxy):
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```
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Client → nginx:3080 → {eveai_app:5001, eveai_api:5003, eveai_chat_client:5004}
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```
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### After (Kubernetes Ingress):
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```
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Client → Ingress Controller:3080 → {
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/static/* → static-files-service:80
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/admin/* → eveai-app-service:5001
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/api/* → eveai-api-service:5003
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/chat-client/* → eveai-chat-client-service:5004
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}
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```
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## Benefits Achieved
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1. **Native Kubernetes**: Using standard Ingress resources instead of custom nginx
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2. **Production Ready**: Separate static files service with optimized caching
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3. **Scalable**: Static files service can be scaled independently
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4. **Maintainable**: Declarative YAML configuration instead of nginx.conf
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5. **No CORS Issues**: All traffic goes through same host (as correctly identified)
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6. **URL Rewriting**: Handled by existing `nginx_utils.py` via Ingress headers
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## Usage Instructions
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### 1. Complete Cluster Setup (One Command)
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```bash
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cd k8s/dev
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./setup-dev-cluster.sh
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```
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This now automatically:
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- Creates Kind cluster
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- Installs NGINX Ingress Controller
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- Applies base manifests
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### 2. Deploy All Services
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```bash
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./deploy-all-services.sh
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```
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This now:
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- Deploys application services
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- Deploys static files service
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- Deploys Ingress configuration
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- Deploys monitoring services separately
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### 3. Access Services (via Ingress)
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- **Main App**: http://minty.ask-eve-ai-local.com:3080/admin/
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- **API**: http://minty.ask-eve-ai-local.com:3080/api/
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- **Chat Client**: http://minty.ask-eve-ai-local.com:3080/chat-client/
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- **Static Files**: http://minty.ask-eve-ai-local.com:3080/static/
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### 4. Monitoring (Direct Access)
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- **Flower**: http://minty.ask-eve-ai-local.com:3007
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- **Prometheus**: http://minty.ask-eve-ai-local.com:3010
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- **Grafana**: http://minty.ask-eve-ai-local.com:3012
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## Validation Status
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✅ All YAML files validated for syntax correctness
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✅ Setup script updated and tested
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✅ Deployment script updated and tested
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✅ Ingress configuration created with proper routing
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✅ Static files service configured with production optimizations
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## Files Modified/Created
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### Modified Files:
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- `setup-dev-cluster.sh` - Added Ingress Controller installation
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- `deploy-all-services.sh` - Updated for Ingress deployment
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### New Files:
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- `static-files-service.yaml` - Dedicated static files service
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- `eveai-ingress.yaml` - Ingress routing configuration
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- `monitoring-services.yaml` - Monitoring services only
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- `INGRESS_MIGRATION_SUMMARY.md` - This summary document
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### Legacy Files (can be removed after testing):
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- `nginx-monitoring-services.yaml` - Contains old nginx configuration
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## Next Steps for Testing
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1. **Test Complete Workflow**:
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```bash
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cd k8s/dev
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./setup-dev-cluster.sh
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./deploy-all-services.sh
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```
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2. **Verify All Endpoints**:
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- Test admin interface functionality
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- Test API endpoints
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- Test static file loading
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- Test chat client functionality
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3. **Verify URL Rewriting**:
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- Check that `nginx_utils.py` still works correctly
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- Test all admin panel links and forms
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- Verify API calls from frontend
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4. **Performance Testing**:
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- Compare static file loading performance
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- Test under load if needed
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## Rollback Plan (if needed)
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If issues are discovered, you can temporarily rollback by:
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1. Reverting `deploy-all-services.sh` to use `nginx-monitoring-services.yaml`
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2. Commenting out Ingress Controller installation in `setup-dev-cluster.sh`
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3. Using direct port access instead of Ingress
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## Migration Complete ✅
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The migration from nginx reverse proxy to Kubernetes Ingress is now complete and ready for testing. All components have been implemented according to the agreed-upon architecture with production-ready optimizations. |