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>
- Add trap.rs with BER/ASN.1 parser for SNMP trap PDUs
- Support both SNMPv1 and SNMPv2c trap formats
- Listen on configurable UDP port (default 162)
- Log received traps at INFO level
- Add LOG_LEVEL env var for log verbosity control
- Add TRAP_PORT env var and CLI flag
- Update docker-compose with trap port mapping
- 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>
Added custom logging macros to main.rs to prepare for removing the
log crate dependency:
- Added LogLevel enum and LOG_LEVEL static
- Created log_error!, log_warn!, log_info!, log_debug! macros
- Replaced log calls in main.rs with custom macros
- Made format_timestamp() public for use in macros
Still TODO:
- Update websocket_client.rs, health.rs, version.rs
- Remove log from Cargo.toml
This is work in progress toward removing more dependencies.
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.
- Starts with 1 second delay, doubles each retry
- Caps at 60 seconds between attempts
- Resets delay counter on successful connection
- Prevents constant reconnection hammering
Added comprehensive timestamp formatting to both agent logs and UI:
Rust Agent Logger:
- Added chrono dependency to Cargo.toml
- Updated SimpleLogger to include timestamps in log output
- Format: [2026-01-15 19:45:23.456] [LEVEL] message
- Shows full date, time, and milliseconds for precise log tracking
Phoenix UI Enhancements:
- Added format_datetime/1 - Full date/time with timezone
- Added format_date/1 - Short date format
- Added format_last_seen_with_date/1 - Relative time with full date
- Updated agent show page to display full timestamps in 'Last Seen' card
- Added comprehensive Timestamps section showing:
- Created date (inserted_at)
- Last Updated date (updated_at)
- Last Seen date (last_seen_at with heartbeat context)
- Last IP Address
- Updated agent index page to show full datetime alongside relative time
All timestamps now include both human-readable relative times ('5m ago')
and precise absolute dates for accurate record keeping and debugging.
Added /health HTTP endpoint on port 8080 that returns:
- Agent status and version
- Uptime in seconds
- Pending metrics count
- Last error (if any)
Implementation:
- Uses lightweight tiny_http server in background thread
- Non-blocking health checks
- Returns JSON for easy integration with monitoring tools
- Ready for Kubernetes liveness/readiness probes
Example response:
{
"status": "healthy",
"version": "0.1.0",
"uptime_seconds": 3600,
"config_last_fetch": "2026-01-14T23:00:00Z",
"metrics_pending": 0,
"last_error": null
}
The agent now checks Docker Hub on startup to see if a newer version
is available and logs a warning if an update is detected.
Changes:
- Add version.rs module to query Docker Hub API
- Check for newer versions on startup (non-blocking)
- Log warning with docker pull command if update available
- Gracefully handle Docker Hub API failures
- Update CLAUDE.md with version checking documentation
