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
Discovery with SNMPv3 was completing in 52 seconds, dangerously close
to the 60s timeout. Increasing to 120s provides comfortable headroom
for complete MikroTik OID tree traversal with encryption overhead.
SNMPv3 has significant encryption and authentication overhead compared to
v2c. MikroTik enterprise tree walks (1.3.6.1.4.1.14988) can take 16+
seconds with SNMPv3, causing timeouts with the previous 30s limit.
Increased timeout from 30s to 60s in both client.rs and device_poller.rs
to accommodate SNMPv3's additional latency.
