coder

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Bobby Ho 603dd420d1 feat: add ServerTailnet logs and metrics for unreachable agents (#30133 )

Add default-level metrics and warn-level diagnostics to investigate
ServerTailnet reachability failures causing agent-specific 502s, without
restarting coderd or enabling debug logging.

- Enrich request logs and PTY/chatd warnings with agent ID, failure
  reason, wait duration, coordinator state, WireGuard handshake and
  byte counts, and DERP regions.
- Add metrics for unreachable attempts by reason, reachability latency,
  embedded DERP connections, and offline app/terminal requests.
- Distinguish reachability failures from subsequent TCP dial failures,
  cap reverse proxy dials at one minute, and exclude expected chatd
  readiness polls and superseded-agent dials from unreachable counts.
- Report missing handshakes as zero time instead of 1970, also fixing
  `coder ping`.

Part of PLAT-680, a sub-issue of PLAT-360.

2026-10-14 14:55:29 -07:00

agentconnmock

feat: add client_session_id to ssh connections (#29701 )

2026-10-02 16:40:24 -08:00

tunneler

test: fix TestTunneler_Integration line endings on Windows (#25584 )

2026-05-21 12:26:54 -04:00

agentconn_internal_test.go

feat: include rotated agent logs in support bundles (#26055 )

2026-06-22 16:38:18 +03:00

agentconn_test.go

feat: add client_session_id to ssh connections (#29701 )