slogth

Ingest logs from stdin and re-emit them with specified delay.

TL;DR

ping 1.1.1.1 | ./bin/slogth help --delay 5s

# nothing happens for 5 seconds

PING 1.1.1.1 (1.1.1.1): 56 data bytes
64 bytes from 1.1.1.1: icmp_seq=0 ttl=57 time=32.841 ms
64 bytes from 1.1.1.1: icmp_seq=1 ttl=57 time=16.679 ms
64 bytes from 1.1.1.1: icmp_seq=2 ttl=57 time=22.551 ms
64 bytes from 1.1.1.1: icmp_seq=3 ttl=57 time=24.806 ms
64 bytes from 1.1.1.1: icmp_seq=4 ttl=57 time=34.152 ms
64 bytes from 1.1.1.1: icmp_seq=5 ttl=57 time=25.536 ms
64 bytes from 1.1.1.1: icmp_seq=6 ttl=57 time=27.846 ms
64 bytes from 1.1.1.1: icmp_seq=7 ttl=57 time=23.651 ms
^C64 bytes from 1.1.1.1: icmp_seq=8 ttl=57 time=41.213 ms  # <- Ctrl-C
64 bytes from 1.1.1.1: icmp_seq=9 ttl=57 time=20.200 ms
64 bytes from 1.1.1.1: icmp_seq=10 ttl=57 time=46.447 ms
64 bytes from 1.1.1.1: icmp_seq=11 ttl=57 time=27.891 ms
64 bytes from 1.1.1.1: icmp_seq=12 ttl=57 time=26.006 ms   # remaining 5 seconds of logs

Usage

./bin/slogth help

NAME:
   slogth - delayed logs emission

USAGE:
   slogth [global options] command [command options]

VERSION:
   0.0.2

COMMANDS:
   help  show the list of commands or help for one command

GLOBAL OPTIONS:
   --version, -v  print the version

   GENERAL

   --delay duration, -d duration  delay ingested logs by specified duration (default: 0s) [$SLOGTH_DELAY]
   --drop-threshold count         count of in-flight messages at which slogth should start dropping them (rate-limit) (default: 0) [$SLOGTH_DROP_THRESHOLD]
   --stderr, -e                   use stderr for output (stdout is used by default) (default: false) [$SLOGTH_STDERR]