Implements health monitoring in the agent using ICMP ping, allowing
devices assigned to local (non-cloud) agents to be monitored.
Changes:
- Add surge-ping library for async ICMP ping operations
- Create ping.rs module with ping_device() function (5s timeout)
- Rename JobType::MONITOR to JobType::PING in protobuf
- Add monitoring_check channels for result communication
- Implement execute_ping_job() to handle PING jobs
- Update TUI to display ping result events
The agent now receives PING jobs from Phoenix, executes ICMP pings,
and sends MonitoringCheck results back for storage in the database.
Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
- Implement get_local_ip() using UDP socket trick to resolve local
interface address without sending traffic, so heartbeat reports
actual agent IP instead of "unknown"
- Remove dead poller/scheduler/executor and api_client modules that
referenced non-existent modules and were never compiled
- Added custom logging macros (log_error!, log_warn!, log_info!, log_debug!)
- Implemented LogLevel enum and LOG_LEVEL static for runtime level control
- Exported macros with #[macro_export] for use across all modules
- Replaced all log:: calls in websocket_client.rs, health.rs, and version.rs
- Removed obsolete test code referencing old log crate
- Removed log dependency from Cargo.toml
- Fixed useless comparison warning in test
- Binary size: still 1.5M (no change - log was lightweight)
- Tests: 65 passing, 0 warnings
This completes the removal of 9 dependencies (thiserror, hostname, chrono,
base64, rand, ureq, tiny_http, anyhow, log). Dependency count: 19 → 10.
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
Removed dependencies and replaced with custom code:
- thiserror: Not used (only pulled by tokio-tungstenite)
- hostname: Replaced with /proc/sys/kernel/hostname reader
- chrono: Replaced with std::time::SystemTime + custom formatting
- base64: Replaced with custom base64 encoder/decoder
Benefits:
- Binary size: 2.4M → 2.3M (100KB reduction)
- Reduced dependency count: 19 → 15 direct dependencies
- Added 7 new tests (73 → 80 total tests)
- All tests pass
Custom implementations:
- format_timestamp(): YYYY-MM-DD HH:MM:SS.mmm format
- get_hostname(): Read from /proc/sys/kernel/hostname
- get_uptime_seconds(): Read from /proc/uptime
- base64_encode/decode(): Standard base64 encoding
No functionality changes, all existing features work identically.
- Add MonitoringCheck message to protobuf definitions
- Add monitoring_enabled and check_interval_seconds to Device and SnmpDevice
- Implement continuous ICMP ping monitoring for devices
- Send monitoring check results to Phoenix via WebSocket
- Integrate existing ping module with agent client
- Spawn background tasks for devices with monitoring enabled
