Hello World

Minimal systemg service.

Configuration

version: "2"
logs:
  sink: file
  max_bytes: 10485760
  max_files: 3
status:
  snapshot_mode: summary
  snapshot_interval_secs: 5
services:
  counter:
    command: "sh counter.sh"

Script

#!/bin/sh
i=1
while true; do
    echo "Count: $i"
    i=$((i + 1))
    sleep 1
done

Run it

$ sysg start
$ sysg logs --service counter
$ sysg stop

You'll see:

Count: 1
Count: 2
Count: 3

The example keeps logs.sink: file explicit so sysg logs works immediately. For high-volume services, use logs.sink: none and rely on your normal logging pipeline.

status.snapshot_mode: summary keeps status and inspect reads inexpensive by reading current persisted state without detailed runtime process collection.

Next steps

Add a restart policy to handle crashes:

version: "2"
logs:
  sink: file
  max_bytes: 10485760
  max_files: 3
status:
  snapshot_mode: summary
  snapshot_interval_secs: 5
services:
  counter:
    command: "sh counter.sh"
    restart_policy: "on-failure"
    max_restarts: 5
    backoff: "5s"