Product OS : Command and Control

Product OS : Command and Control provides a distributed command and control system for coordinating multiple Product OS server instances. It enables secure communication, service discovery, and workload distribution across a cluster of nodes.

What is Product OS?

Product OS is a collection of packages that provide different tools and features that can work together to build products more easily for the Rust ecosystem.

Features

• Secure Communication: Authentication framework using Diffie-Hellman key exchange
• Service Discovery: Automatic node registration and discovery
• Load Balancing: Smart routing to available nodes based on capabilities
• Health Monitoring: Pulse checks and automatic failure detection
• Feature Management: Dynamic feature and service registration
• No-std Support: Works in no_std environments with alloc

Installation

Add Product OS : Command and Control to your Cargo.toml:

[dependencies]
product-os-command-control = { version = "0.0.25" }

Quick Start

use product_os_command_control::ProductOSController;
use product_os_configuration::Configuration;
use product_os_security::certificates::Certificates;

async fn example() {
    // Create configuration and certificates
    let config = Configuration::new();
    let certs = Certificates::new_self_signed(
        vec![("CN".to_string(), "localhost".to_string())],
        None, None, None, None, None,
    );

    // Initialize the controller
    let controller = ProductOSController::new(
        config,
        certs,
        None, // Optional key-value store
    );

    // Access the registry
    let registry = controller.get_registry();
    let my_node = registry.get_me();
    println!("Node ID: {}", my_node.get_identifier());
}

Feature Flags

• default: Standard library support with monitoring
• monitor: Enable monitoring service
• tokio: Enable Tokio async executor
• distributed: Enable distributed node discovery and communication
• postgres_store: PostgreSQL relational store support
• sqlite_store: SQLite relational store support
• redis_key_value_store: Redis key-value store support
• memory_key_value_store: In-memory key-value store support
• file_key_value_store: File-based key-value store support
• redis_queue_store: Redis queue store support
• memory_queue_store: In-memory queue store support

Architecture

The command and control system consists of several key components:

• ProductOSController: Main coordinator that manages nodes and services
• Registry: Tracks available nodes and their capabilities
• Node: Represents a single server instance in the cluster
• Commands: Structured way to send instructions to remote nodes

Security

All node-to-node communication is secured using:

• TLS/SSL certificates for transport security
• Diffie-Hellman key exchange for establishing shared secrets
• Message authentication using HMAC

Service Management

use product_os_command_control::ProductOSController;
use std::sync::Arc;

async fn manage_services(controller: &mut ProductOSController) {
    // Add a service
    let service = /* ... */;
    controller.add_service(service).await;
    
    // Start all services
    controller.start_services().await;
    
    // Start a specific service
    controller.start_service("my-service").await;
    
    // Stop a service
    controller.stop_service("my-service").await;
}

Node Discovery

use product_os_command_control::ProductOSController;

async fn discover(controller: &mut ProductOSController) {
    // Discover other nodes in the cluster
    controller.discover_nodes().await;
    
    // Get the registry with all known nodes
    let registry = controller.get_registry();
}

Testing

# Run all tests
cargo test --all-features

# Run with specific features
cargo test --features "monitor,tokio"

# Generate documentation
cargo doc --all-features --open

License

GNU GPLv3

Contributing

Contributions are welcome! Please ensure:

• All tests pass: cargo test --all-features
• Code is formatted: cargo fmt
• No clippy warnings: cargo clippy --all-features
• Documentation is updated for public APIs

Minimum Supported Rust Version (MSRV)

Rust 1.69 or later.