max / mountaineer

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1	#!/bin/sh
2	# yambar `svc` segment feed: services health summary from sysop.
3	#
4	# Emits one yambar record per second:
5	# state\|string\|ok (all up)
6	# state\|string\|down (some down)
7	# count\|string\|<N> (count of down services, only on `down`)
8	#
9	# Routes operator into `sysop services` when state != ok.
10
11	set -eu
12
13	while :; do
14	summary="$(sysop services --summary 2>/dev/null \|\| echo 'down')"
15	case "$summary" in
16	ok)
17	printf 'state\|string\|ok\n\n'
18	;;
19	*' down')
20	count="${summary% down}"
21	printf 'state\|string\|down\ncount\|string\|%s\n\n' "$count"
22	;;
23	*)
24	printf 'state\|string\|down\ncount\|string\|?\n\n'
25	;;
26	esac
27	sleep 5
28	done
29