pilot/docs/implementation_status.md

Pilot v2 - Implementation Status

Date: 2025-12-30 Version: 0.1.0

Overview

Pilot v2 is a complete rewrite of the Python v1 in Rust with improved architecture, configuration management, and MQTT contract.

Build Status

✅ Builds successfully: cargo build completes without errors ✅ Tests passing: All 5 unit tests pass (cargo test) ✅ Runs with config: Application loads and parses YAML configuration

P0 Requirements Status

✅ Contrat MQTT stable et documente

Status: IMPLEMENTED

The MQTT contract is stable and documented in architecture_v2.md:

• Base topic: pilot/<device>/...
• Topics implemented:
  • pilot/<device>/availability - online/offline with LWT support
  • pilot/<device>/status - JSON with version, OS, uptime, backends
  • pilot/<device>/capabilities - JSON listing enabled features
  • pilot/<device>/state/<name> - Sensor states
  • pilot/<device>/cmd/<action>/set - Command reception

Implemented in: mqtt/mod.rs

✅ Config YAML + validation

Status: IMPLEMENTED

• Config loading from multiple locations (/etc/pilot/config.yaml, ./config.yaml)
• Full validation of required fields
• Structured config with device, MQTT, features, backends, publish settings
• Example config: config/config.example.yaml

Implemented in: config/mod.rs

✅ LWT + status + capabilities

Status: IMPLEMENTED

• LWT (Last Will Testament): Configured during MQTT connection, publishes "offline" on unexpected disconnect
• Status: Published as JSON with version, OS, uptime_s, last_error, backends
• Capabilities: Published as JSON listing available telemetry and commands

Implemented in:

• LWT: mqtt/mod.rs:51-53
• Status/Capabilities: runtime/mod.rs:41-43

✅ Allowlist commandes + validation payloads

Status: IMPLEMENTED

• Allowlist: Configurable list of allowed commands in YAML
• Validation: Payload parsing with proper error handling (ON/OFF values)
• Cooldown: Per-command cooldown to prevent spam
• Dry-run mode: Testing without executing system commands

Implemented in: commands/mod.rs:59-82

⚠️ Reflexion sur utilisation avec une web app

Status: NOT IMPLEMENTED (design phase)

Notes: This is a future consideration. The current MQTT contract is flexible enough to support a web app that:

• Subscribes to pilot/+/status to discover devices
• Subscribes to pilot/+/capabilities to know available commands
• Publishes to pilot/<device>/cmd/<action>/set to send commands
• Monitors pilot/+/state/# for telemetry

Next steps:

1. Document web app integration patterns
2. Consider adding HTTP API alongside MQTT
3. Create example web dashboard

⚠️ Reflexion integration devices type Proxmox

Status: NOT IMPLEMENTED (design phase)

Notes: Integration with Proxmox for VM start/stop requires:

• New command types beyond power/screen
• Proxmox API client library
• Authentication with Proxmox server
• VM enumeration and state tracking

Next steps:

1. Define MQTT contract for VM commands
2. Add Proxmox provider module
3. Extend capabilities system for VM management

Core Functionality Status

✅ MQTT Client

• Connection with keepalive
• Username/password authentication support
• QoS configuration (0, 1, 2)
• Retain flag support
• LWT configuration
• Automatic reconnection (via rumqttc event loop)

Implemented in: mqtt/mod.rs

✅ Configuration System

• YAML parsing with serde
• Multi-path config search (OS-specific + fallback)
• Validation of required fields
• Type-safe config structs

Implemented in: config/mod.rs

✅ Telemetry

Implemented metrics:

• CPU usage (%)
• Memory used (MB)
• Memory total (MB)
• IP address (local)
• Battery level (0-100%) - Linux only, auto-detected
• Battery state (charging/discharging/full/not_charging) - Linux only

Missing from v1:

• CPU temperature
• CPU frequency
• GPU metrics (temperature, memory)

Implemented in: telemetry/mod.rs

✅ Command System

Power commands (Linux):

• Shutdown (systemctl/sudo)
• Reboot (systemctl/sudo)
• Sleep/Suspend (systemctl)

Screen commands (Linux):

• Screen on/off via GNOME busctl
• Screen on/off via X11 xset

Power/Screen commands (Windows):

• Stub implementation (logs only, needs completion)

Implemented in:

• platform/linux/mod.rs
• platform/windows/mod.rs

✅ Home Assistant Discovery

Implemented entities:

• Sensors: cpu_usage, memory_used_mb, memory_total_mb, ip_address, power_state
• Switches: shutdown, reboot, sleep, screen

Discovery features:

• Device info with identifiers, manufacturer, model, version
• Unique IDs per entity
• Availability topic linking
• Command topic for switches
• Unit of measurement and device class
• Custom icons

Implemented in: ha/mod.rs

✅ Runtime & Event Loop

Main loop handles:

• Telemetry tick (configurable interval)
• Heartbeat tick (status + power_state publishing)
• MQTT event processing (incoming commands)
• Graceful shutdown (Ctrl+C handling)

Implemented in: runtime/mod.rs

Missing Features

From v1

1. CPU Temperature: Not yet implemented (requires platform-specific APIs)
2. CPU Frequency Control: V1 had slider for CPU frequency adjustment
3. GPU Telemetry: V1 supported NVIDIA GPU temperature and memory
4. Battery Status: V1 published battery level and state

Security (P1)

1. TLS/SSL: MQTT over TLS not yet configured
2. ACL: Broker-side ACLs not documented
3. HMAC/Signature (P2): Advanced security not implemented

Packaging (P1)

1. Systemd service: Template exists but not tested
2. Windows service: Not implemented
3. Binary distribution: No release builds or packages
4. Install scripts: No automated installation

Testing Status

✅ Unit Tests

• Config parsing and validation
• Command action parsing
• Command value parsing
• Allowlist checks
• Cooldown mechanism

Tests: 5/5 passing

⚠️ Integration Tests

• MQTT end-to-end flow: NOT TESTED (manual only)
• Home Assistant discovery: NOT TESTED
• Platform backends: NOT TESTED

⚠️ Manual Testing

Manual test checklist exists in tests_mqtt.md but needs:

• Running MQTT broker
• Complete test execution documentation
• Test results recording

Deployment Readiness

Development Use: ✅ READY

• Can be run locally with ./scripts/run_pilot.sh
• Dry-run mode prevents accidental system commands
• Configuration is well-documented

Production Use: ⚠️ NOT READY

Blockers:

1. Windows backend needs implementation (currently stubs)
2. Missing telemetry from v1 (CPU temp, GPU, battery)
3. No systemd service testing
4. No TLS/authentication testing
5. No integration test suite

Recommended before production:

1. Complete Windows implementation
2. Add CPU temperature support
3. Test systemd service deployment
4. Add TLS configuration
5. Complete manual test checklist
6. Create installation documentation

Next Development Steps

Immediate (P0 completion)

1. ✅ Web app integration - Document patterns (no code needed yet)
2. ⚠️ Proxmox integration - Design phase only

Short-term (Complete v2 parity with v1)

1. Add CPU temperature telemetry
2. Add battery status telemetry
3. Add GPU telemetry (multi-vendor)
4. Complete Windows backend implementation
5. Add CPU frequency control command

Medium-term (P1 features)

1. TLS/SSL support for MQTT
2. Test and document systemd service
3. Create Windows service
4. Build release binaries
5. Create installation packages
6. GUI configuration tool (GNOME)

Long-term (P2 features)

1. HMAC/signature-based security
2. Extended power states (hibernate, locked)
3. MQTT integration test suite
4. Web dashboard for device management
5. Proxmox VM control integration

Conclusion

Pilot v2 core implementation is functionally complete for Linux development use.

The application successfully:

• Loads configuration from YAML
• Connects to MQTT broker with LWT
• Publishes telemetry at configured intervals
• Receives and executes commands with allowlist and cooldown
• Publishes Home Assistant discovery
• Handles graceful shutdown

P0 requirements: 4/4 technical requirements COMPLETE, 2/2 design considerations IN PROGRESS

Ready for: Local development, testing with Home Assistant, dry-run command validation

Not ready for: Production deployment, Windows environments, missing v1 telemetry features