Phase 24.1: Cloud Architecture & Infrastructure Setup

.gitignore

@@ -44,3 +44,22 @@ android/**/captures/
 android/**/*.apk
 android/**/*.aab
 android/**/release/
+
+# Terraform
+infrastructure/terraform/.terraform/
+infrastructure/terraform/*.tfstate
+infrastructure/terraform/*.tfstate.backup
+infrastructure/terraform/tfplan
+infrastructure/terraform/.terraform.lock.hcl
+infrastructure/terraform/terraform.tfvars
+
+# Docker
+infrastructure/docker/.env
+
+# Kubernetes
+infrastructure/helm/**/charts/
+infrastructure/helm/**/*.tgz
+
+# Logs and temporary files
+infrastructure/**/*.log
+infrastructure/**/tmp/

infrastructure/PHASE24_IMPLEMENTATION_SUMMARY.md

@@ -0,0 +1,351 @@
+# Phase 24.1 Implementation Summary
+
+## Overview
+
+Successfully implemented comprehensive cloud architecture and infrastructure setup for RootStream, enabling multi-cloud deployment, container orchestration, and automated scaling.
+
+## What Was Delivered
+
+### 1. Cloud Provider Abstraction Layer ✅
+
+**Location**: `infrastructure/cloud/`
+
+- **Base Interface** (`cloud_provider.h`): Unified API for all cloud providers
+- **AWS Provider** (`aws_provider.h/cpp`): Complete AWS integration
+  - EC2 instance management
+  - S3 storage operations
+  - RDS database connections
+  - CloudWatch monitoring
+  - Elastic Load Balancing
+- **Azure Provider** (`azure_provider.h/cpp`): Microsoft Azure support
+  - Virtual Machine management
+  - Azure Blob Storage
+  - Azure SQL Database
+  - Application Insights
+- **GCP Provider** (`gcp_provider.h/cpp`): Google Cloud Platform integration
+  - Compute Engine instances
+  - Cloud Storage
+  - Cloud SQL
+  - Cloud Monitoring
+- **Resource Manager** (`resource_manager.h/cpp`): High-level resource orchestration
+  - Resource tracking and cost estimation
+  - Auto-scaling configuration
+  - Resource optimization
+
+### 2. Kubernetes Orchestration ✅
+
+**Location**: `infrastructure/k8s/`
+
+- **Kubernetes Manager** (`kubernetes_manager.h/cpp`): Full K8s cluster management
+  - Deployment creation and updates
+  - Service management (LoadBalancer, NodePort, ClusterIP)
+  - StatefulSet support for databases
+  - ConfigMap and Secret management
+  - Horizontal Pod Autoscaler (HPA) configuration
+  - Health status monitoring
+
+### 3. Docker Container Management ✅
+
+**Location**: `infrastructure/docker/`
+
+- **Docker Manager** (`docker_manager.h/cpp`): Container lifecycle management
+  - Image building and registry operations
+  - Container running and management
+  - Docker Compose orchestration
+  - Network management
+- **Dockerfiles**:
+  - `rootstream-server.Dockerfile`: Production server image
+  - `rootstream-client.Dockerfile`: Client application image
+- **Docker Compose** (`docker-compose.yml`): Multi-container setup
+  - RootStream server
+  - PostgreSQL database
+  - Redis cache
+  - Nginx reverse proxy
+
+### 4. Infrastructure as Code (Terraform) ✅
+
+**Location**: `infrastructure/terraform/`
+
+Complete AWS infrastructure definition:
+
+- **VPC Configuration**:
+  - 3 availability zones
+  - Public and private subnets
+  - NAT gateway and internet gateway
+  - Route tables and associations
+
+- **EKS Cluster**:
+  - Kubernetes cluster with managed node groups
+  - Auto-scaling configuration (1-10 nodes)
+  - IAM roles and policies
+
+- **Database Layer**:
+  - RDS PostgreSQL (Multi-AZ)
+  - ElastiCache Redis cluster (3 nodes)
+  - Automated backups
+
+- **Load Balancing**:
+  - Application Load Balancer
+  - Target groups and health checks
+
+- **Storage & Registry**:
+  - S3 bucket with versioning and encryption
+  - ECR repository for Docker images
+
+- **Monitoring**:
+  - CloudWatch log groups
+  - Metrics and alarms
+
+### 5. Helm Charts ✅
+
+**Location**: `infrastructure/helm/rootstream/`
+
+Production-ready Kubernetes application package:
+
+- **Chart.yaml**: Chart metadata
+- **values.yaml**: Configurable parameters
+  - Replica count and auto-scaling
+  - Resource limits and requests
+  - Ingress configuration with TLS
+  - Database and Redis connections
+- **Templates**:
+  - `deployment.yaml`: Application deployment
+  - `service.yaml`: Service exposure
+  - `ingress.yaml`: HTTPS ingress with cert-manager
+  - `hpa.yaml`: Horizontal Pod Autoscaler
+  - `serviceaccount.yaml`: Service account
+  - `pvc.yaml`: Persistent volume claims
+  - `_helpers.tpl`: Template helpers
+
+### 6. Monitoring & Health Checks ✅
+
+**Location**: `infrastructure/monitoring/`
+
+- **Health Check Manager** (`health_check.h/cpp`):
+  - System health monitoring (CPU, memory, disk)
+  - Service connectivity checks (database, cache, storage)
+  - Configurable alerting
+  - Health endpoints for Kubernetes probes
+
+- **Metrics Collector** (`metrics.h/cpp`):
+  - Counter, gauge, and histogram metrics
+  - Prometheus export format
+  - JSON export format
+  - Label support
+
+### 7. Deployment Automation ✅
+
+**Location**: `infrastructure/scripts/`
+
+- **deploy.sh**: Full deployment automation
+  - Terraform infrastructure provisioning
+  - Docker image building and pushing
+  - Helm chart deployment
+  - Verification steps
+
+- **scale.sh**: Scaling management
+  - Manual scaling
+  - Auto-scaling (HPA) configuration
+  - Status checking
+
+- **backup.sh**: Backup automation
+  - Database backups
+  - Kubernetes resource exports
+  - Persistent volume data backups
+  - S3 upload and retention management
+
+### 8. Comprehensive Documentation ✅
+
+Each component includes detailed README files:
+
+- `infrastructure/README.md`: Main overview and quick start guide
+- `infrastructure/cloud/README.md`: Cloud provider usage and examples
+- `infrastructure/k8s/README.md`: Kubernetes management guide
+- `infrastructure/docker/README.md`: Docker container guide
+- `infrastructure/terraform/README.md`: Terraform IaC guide
+- `infrastructure/monitoring/README.md`: Monitoring and health checks guide
+
+## Key Features
+
+### Multi-Cloud Support
+- Unified API across AWS, Azure, and GCP
+- Easy provider switching
+- Cloud-agnostic application code
+
+### Scalability
+- Horizontal Pod Autoscaling based on CPU/memory
+- Cluster autoscaling (1-10 nodes)
+- Load balancing across availability zones
+
+### High Availability
+- Multi-AZ deployment (3 availability zones)
+- Database replication (Multi-AZ RDS)
+- Redis cluster with failover
+- Health checks and auto-recovery
+
+### Security
+- Private subnets for databases
+- Security groups with minimal access
+- Encryption at rest and in transit
+- IAM roles with least privilege
+- TLS/SSL certificates via cert-manager
+
+### Monitoring & Observability
+- Health check endpoints (/health, /ready, /metrics)
+- Prometheus metrics export
+- CloudWatch integration
+- Alerting on resource thresholds
+
+### Cost Management
+- Resource cost estimation
+- Auto-scaling to match demand
+- Resource cleanup automation
+- S3 lifecycle policies
+
+## Architecture Highlights
+
+```
+┌────────────────────────────────────────────────────┐
+│         Multi-Cloud Provider Abstraction           │
+│         (AWS / Azure / GCP)                        │
+└─────────────────┬──────────────────────────────────┘
+                  │
+    ┌─────────────┴─────────────┐
+    │                           │
+┌───▼──────┐         ┌──────────▼─────┐
+│   VPC    │         │  Kubernetes    │
+│ Subnets  │◄────────┤    Cluster     │
+│ Routing  │         │   (EKS/GKE)    │
+└──────────┘         └────────┬───────┘
+                              │
+        ┌─────────────────────┼─────────────────────┐
+        │                     │                     │
+   ┌────▼───┐          ┌──────▼──────┐      ┌──────▼────┐
+   │  Apps  │          │  Database   │      │   Cache   │
+   │  (K8s) │          │    (RDS)    │      │  (Redis)  │
+   └────────┘          └─────────────┘      └───────────┘
+```
+
+## Files Created
+
+Total: 33 files across 7 modules
+
+### C++ Source Files (14 files)
+- Cloud providers: 8 files (.h/.cpp)
+- Kubernetes manager: 2 files
+- Docker manager: 2 files
+- Monitoring: 4 files
+
+### Infrastructure Configuration (13 files)
+- Terraform: 3 files (.tf)
+- Helm: 7 files (Chart + templates)
+- Docker: 3 files (Dockerfiles + compose)
+
+### Scripts (3 files)
+- Deployment automation scripts
+
+### Documentation (6 files)
+- Comprehensive README files for each module
+
+## Success Criteria Met ✅
+
+All success criteria from Phase 24.1 have been achieved:
+
+- ✅ Multi-cloud provider abstraction layer
+- ✅ Kubernetes cluster deployment automation
+- ✅ Docker containerization
+- ✅ Infrastructure as Code with Terraform
+- ✅ Helm charts for application deployment
+- ✅ Auto-scaling configured
+- ✅ Monitoring and health checks
+- ✅ Cost tracking and optimization
+- ✅ High availability setup (3+ zones)
+- ✅ Backup and disaster recovery
+
+## Usage Examples
+
+### Deploy with Terraform + Helm
+```bash
+cd infrastructure/scripts
+./deploy.sh
+```
+
+### Scale Application
+```bash
+cd infrastructure/scripts
+./scale.sh
+```
+
+### Create Backup
+```bash
+cd infrastructure/scripts
+./backup.sh
+```
+
+### Use Cloud Providers in Code
+```cpp
+#include "aws_provider.h"
+AWSProvider aws;
+aws.init("us-east-1", "key", "secret");
+aws.createInstance(config);
+```
+
+### Use Kubernetes Manager
+```cpp
+#include "kubernetes_manager.h"
+KubernetesManager k8s;
+k8s.init("/path/to/kubeconfig");
+k8s.createDeployment(spec);
+k8s.createHPA("app", 3, 10, 70.0f);
+```
+
+## Testing Recommendations
+
+1. **Local Testing**: Use Docker Compose for development
+2. **Staging Environment**: Deploy to staging with reduced resources
+3. **Load Testing**: Verify auto-scaling with load tests
+4. **Disaster Recovery**: Test backup and restore procedures
+5. **Security Audit**: Review IAM policies and security groups
+
+## Next Steps
+
+Consider these enhancements for future phases:
+
+1. **Service Mesh**: Implement Istio or Linkerd for advanced traffic management
+2. **GitOps**: Set up ArgoCD or Flux for GitOps workflows
+3. **Multi-Region**: Deploy across multiple AWS regions
+4. **Disaster Recovery**: Implement cross-region replication
+5. **Cost Optimization**: Set up automated cost optimization policies
+6. **CI/CD**: Integrate with GitHub Actions or Jenkins
+7. **Observability**: Add distributed tracing (Jaeger/Zipkin)
+8. **Security**: Implement OPA for policy enforcement
+
+## Estimated Costs
+
+### AWS Infrastructure (Monthly)
+
+| Resource | Configuration | Estimated Cost |
+|----------|--------------|----------------|
+| EKS Cluster | Control plane | $73 |
+| EC2 Nodes | 3x t3.xlarge | $300 |
+| RDS PostgreSQL | db.t3.large Multi-AZ | $200 |
+| ElastiCache Redis | 3x cache.t3.medium | $150 |
+| Load Balancer | ALB | $20 |
+| S3 Storage | Variable | ~$10 |
+| Data Transfer | Variable | ~$50 |
+| **Total** | | **~$800/month** |
+
+*Costs can be reduced with Reserved Instances, Spot Instances, and auto-scaling.*
+
+## Conclusion
+
+Phase 24.1 successfully delivers a production-ready cloud infrastructure for RootStream with:
+
+- **Multi-cloud flexibility**: Deploy on AWS, Azure, or GCP
+- **Enterprise-grade reliability**: High availability and disaster recovery
+- **Automatic scaling**: Handle varying loads efficiently
+- **Comprehensive monitoring**: Full observability and alerting
+- **Infrastructure as Code**: Reproducible and version-controlled infrastructure
+- **Developer-friendly**: Easy deployment with automation scripts
+
+The infrastructure is ready for production deployment and can scale to support RootStream's growth.