- 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
- Replace raw ICMP socket implementation with system ping command
- Add regex-lite dependency for parsing ping output
- Add tokio process feature for async command execution
- Support macOS and Linux ping output formats
- Add iputils to Dockerfile for setuid-root ping
- Remove socket2 dependency (no longer needed)
This eliminates the need for CAP_NET_RAW capability in containers.
- 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.
Problem:
- Rust agent was experiencing frequent SNMP timeouts
- 5-second timeout is too aggressive for slow devices or congested networks
- Phoenix app uses 30-second timeout with better reliability
Solution:
- Increased SNMP_TIMEOUT_SECS constant from 5 to 30 seconds
- Applied to both get() and walk() operations
- Now matches Phoenix application timeout configuration
Benefits:
- Reduces false positive timeout errors
- Better handling of slow network devices
- Consistent timeout behavior across Elixir and Rust pollers
- Maintains reliability during network congestion
Note: SNMP timeout is per-request. Total polling time may still be
limited by Task::spawn_blocking timeout in poller executor (40s).
🤖 Generated with Claude Code
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.
