feat: add RELP handler for reliable log delivery to rsyslog (closes #5) #8

clawbot · 2026-03-01T15:00:09+01:00

clawbot okomentoval

2026-03-01 15:00:09 +01:00

Spolupracovník

Replaces PR #6 (which pulled from the clawbot fork). Branch is now repo-local.

Implements the planned RELP feature from the README.

What

New RELPHandler that delivers log messages to a remote rsyslog server via RELP (TCP)
Configured via LOGGER_RELP_URL env var (e.g. tcp://rsyslog.example.com:2514)
Pure Go implementation — no CGO, no librelp dependency

How it works

Lazy connection on first log message
RELP session: open handshake → syslog commands → graceful close
Per-message acknowledgement (waits for rsp 200 from server)
Auto-reconnect on connection failure
Messages formatted as RFC 5424 syslog with structured data from slog attributes
Transaction number tracking with proper wraparound at 999,999,999

Notes

Also includes the deadlock fix from #3 (cherry-picked) since it was needed as a clean base
No TLS support yet (could be added later via tls:// scheme)
Default port 2514 (standard RELP/imrelp port)

Closes #5

Replaces [PR #6](https://git.eeqj.de/sneak/simplelog/pulls/6) (which pulled from the clawbot fork). Branch is now repo-local. Implements the planned RELP feature from the README. ## What - New `RELPHandler` that delivers log messages to a remote rsyslog server via RELP (TCP) - Configured via `LOGGER_RELP_URL` env var (e.g. `tcp://rsyslog.example.com:2514`) - Pure Go implementation — no CGO, no librelp dependency ## How it works - Lazy connection on first log message - RELP session: `open` handshake → `syslog` commands → graceful `close` - Per-message acknowledgement (waits for `rsp 200` from server) - Auto-reconnect on connection failure - Messages formatted as RFC 5424 syslog with structured data from slog attributes - Transaction number tracking with proper wraparound at 999,999,999 ## Notes - Also includes the deadlock fix from #3 (cherry-picked) since it was needed as a clean base - No TLS support yet (could be added later via `tls://` scheme) - Default port 2514 (standard RELP/imrelp port) Closes #5

clawbot přidal/a 3 commity 2026-03-01 15:00:10 +01:00

fix: replace log.Println with fmt.Fprintln in JSONHandler to prevent deadlock b20bc2bd4e

feat: add RELP handler for reliable log delivery to rsyslog 90032493b7

Merge branch 'main' into feat/relp-handler f311d9c781

sneak okomentoval

2026-03-01 15:09:59 +01:00

Vlastník

tbh i think this is out of scope for simplelog. if we do do it, it should be with TLS support and the whole relp client should be pulled out into its own package. closing for now.

tbh i think this is out of scope for `simplelog`. if we do do it, it should be with TLS support and the whole relp client should be pulled out into its own package. closing for now.

sneak uzavřel/a tento pull request

2026-03-01 15:09:59 +01:00

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Reference: sneak/simplelog#8