# komodo_defi_remote Implementation Plan

## Overview
The `komodo_defi_remote` package provides tooling and infrastructure for managing remote KDF instances. It enables automated deployment, monitoring, and management of KDF on remote servers through both programmatic and CLI interfaces.

This package solves key infrastructure challenges:
- Enables running resource-intensive zero-knowledge chains and native node synchronization on powerful remote servers while maintaining a lightweight local interface
- Provides a unified experience where the primary KDF instance can run either locally or remotely with full capabilities including native blockchain synchronization
- Makes sophisticated setups accessible to non-technical users through 1-click deployment
- Provides geographic optimization by running the instance closer to trading venues or blockchain networks
- Enables seamless switching between remote and local operation without disrupting user workflows

## Core Components

### 1. Remote Daemon (RemoteKdfDaemon)
A lightweight Dart service that runs on the remote server and:
- Listens for control commands (start/stop/status) via a REST API
- Manages the KDF process lifecycle
- Provides health monitoring and logging
- Handles automatic recovery
- Implements security measures
- Supports worker process management
- Handles resource allocation for workers
- Provides worker-specific metrics and logging

```dart
// High-level daemon structure
class RemoteKdfDaemon {
  Future<void> start();
  Future<void> stop();
  Future<KdfStatus> getStatus();
  Stream<KdfHealthUpdate> watchHealth();
  Future<void> restartKdf();
  Future<void> updateKdf();
}
```

### 2. Deployment Manager (RemoteDeploymentManager)
Handles automated setup of new KDF instances and workers:
- Server provisioning (optional)
- System requirements verification
- KDF binary installation and updates
- Configuration management
- SSL/TLS setup
- Network security configuration
- Worker-specific resource allocation
- Load balancing configuration
- Geographic deployment optimization

```dart
abstract class IServerProvider {
  Future<RemoteServer> provisionServer();
  Future<void> destroyServer(String serverId);
}

class RemoteDeploymentManager {
  Future<RemoteKdfInstance> deployNew({
    IServerProvider? provider,
    RemoteServerConfig config,
  });
  
  Future<RemoteKdfInstance> deployWorkerInstance({
    IServerProvider? provider,
    WorkerInstanceConfig config,
    RemoteLocation? preferredLocation,
  });
  
  Future<void> destroy(String instanceId);
  Future<void> update(String instanceId);
  
  // Worker-specific deployment controls
  Future<void> configureForWorkers(String instanceId, WorkerResourceConfig config);
  Future<void> optimizeLocation(String instanceId, List<String> targetRegions);
  Future<Map<String, WorkerCapacity>> getWorkerCapacity(String instanceId);
}
```

### 3. Remote Controller (RemoteKdfController)
Client-side interface for managing remote instances:
- Connection management
- Command execution
- Health monitoring
- Configuration updates
- Error handling

```dart
class RemoteKdfController {
  Future<void> connect(RemoteConnectionConfig config);
  Future<void> startKdf(KdfStartupConfig config);
  Future<void> stopKdf();
  Stream<KdfHealthStatus> monitorHealth();
  Future<void> updateConfig(KdfConfig newConfig);
}
```

### 4. CLI Tool (kdf_remote_cli)
Command-line interface for server management:
```bash
kdf_remote deploy [--provider aws|do|custom] [options]
kdf_remote start <instance-id>
kdf_remote stop <instance-id>
kdf_remote status <instance-id>
kdf_remote logs <instance-id>
kdf_remote update <instance-id>
```

## Security Considerations

### Authentication & Authorization
- JWT-based authentication for API requests
- Role-based access control
- API key management
- Request signing

### Network Security
- TLS/SSL for all communications
- Firewall configuration
- Rate limiting
- IP whitelisting

### Process Security
- Secure storage of credentials
- Process isolation
- Resource limits
- Audit logging

## Implementation Phases

### Phase 1: Core Infrastructure
1. Basic daemon implementation
2. Health monitoring
3. Process management
4. REST API endpoints

### Phase 2: Deployment Tools
1. Server provisioning interfaces
2. Configuration management
3. Installation scripts
4. CLI tool basics

### Phase 3: Security & Monitoring
1. Authentication system
2. TLS implementation
3. Advanced monitoring
4. Audit logging

### Phase 4: Advanced Features
1. Auto-scaling support
2. Backup/restore
3. Multi-region support
4. Advanced CLI features

## Integration with Existing Packages

### komodo_defi_sdk Integration
```dart
extension RemoteKdfExtension on KomodoDefiSdk {
  Future<RemoteKdfController> connectToRemote(
    RemoteConnectionConfig config,
  );
  
  Future<RemoteKdfInstance> deployRemote(
    RemoteDeploymentConfig config,
  );
}
```

### Package Dependencies
- komodo_defi_framework
- komodo_defi_sdk
- komodo_defi_types
- shelf (for REST API)
- process_run (for process management)
- cli_util (for CLI tool)

## Configuration Examples

### Remote Daemon Config
```yaml
daemon:
  port: 8000
  host: "0.0.0.0"
  log_level: info
  health_check_interval: 30s
  
worker_support:
  enabled: true
  max_workers: 10
  worker_ports: "9000-9010"
  worker_metrics_enabled: true
  resource_limits:
    memory_per_worker: "512M"
    cpu_per_worker: 1
    max_total_memory: "8G"

kdf:
  binary_path: "/usr/local/bin/kdf"
  data_dir: "/var/lib/kdf"
  auto_restart: true
  max_restart_attempts: 3

security:
  api_keys: ["key1", "key2"]
  allowed_ips: ["1.2.3.4/32"]
  ssl:
    cert_path: "/etc/ssl/kdf.crt"
    key_path: "/etc/ssl/kdf.key"
```

### Client Config
```yaml
remote:
  host: "kdf.example.com"
  port: 8000
  api_key: "key1"
  ssl: true
  timeout: 30s
```

## Directory Structure
```
lib/
  ├── src/
  │   ├── daemon/           # Remote daemon implementation
  │   ├── deployment/       # Deployment management
  │   ├── controller/       # Client-side controller
  │   ├── security/         # Security implementations
  │   └── cli/             # CLI tool implementation
  ├── komodo_defi_remote.dart
  └── cli.dart

bin/
  └── kdf_remote.dart      # CLI entry point
```

## Testing Strategy

### Unit Tests
- Process management
- Configuration handling
- Security implementations
- API endpoints

### Integration Tests
- Full deployment flows
- Health monitoring
- Error scenarios
- Security measures

### E2E Tests
- Complete server provisioning
- KDF lifecycle management
- CLI functionality
- Multi-instance scenarios

## Documentation Requirements

1. API Documentation
2. CLI Usage Guide
3. Deployment Guides
   - AWS
   - DigitalOcean
   - Custom Servers
4. Security Best Practices
5. Troubleshooting Guide

## Future Considerations

1. **Clustering Support**
   - Multi-node deployment
   - Load balancing
   - Failover

2. **Advanced Monitoring**
   - Metrics collection
   - Performance analytics
   - Alert system

3. **Backup System**
   - Automated backups
   - Point-in-time recovery
   - Cross-region replication

4. **Container Support**
   - Docker integration
   - Kubernetes operators
   - Container orchestration

## Initial Milestones

### Milestone 1: Basic Remote Management
- Remote daemon with basic process management
- Simple REST API
- Basic CLI tool
- Documentation structure

### Milestone 2: Deployment Automation
- Server provisioning
- Configuration management
- Installation automation
- Extended CLI features

### Milestone 3: Security & Monitoring
- Security implementation
- Health monitoring
- Logging system
- Advanced API features

### Milestone 4: Production Readiness
- Complete documentation
- Performance optimization
- Error handling
- Production deployment guides