ubuntu-buildroot/package/fluent-bit/S99fluent-bit

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#!/bin/sh
DAEMON="fluent-bit"
PID_FILE="/var/run/$DAEMON.pid"
CONF_FILE="/etc/$DAEMON/$DAEMON.conf"
FLUENT_BIT_ARGS=""
# shellcheck source=/dev/null
[ -r "/etc/default/$DAEMON" ] && . "/etc/default/$DAEMON"
start() {
printf 'Starting %s: ' "$DAEMON"
# shellcheck disable=SC2086 # we need the word splitting
start-stop-daemon -S -q -b -m -p "$PID_FILE" --exec "/usr/bin/$DAEMON" \
-- -c "$CONF_FILE" $FLUENT_BIT_ARGS
status=$?
if [ "$status" -eq 0 ]; then
echo "OK"
else
echo "FAIL"
fi
return "$status"
}
stop() {
printf 'Stopping %s: ' "$DAEMON"
start-stop-daemon -K -q -p "$PID_FILE"
status=$?
if [ -f "$PID_FILE" ]; then
pid=$(cat "$PID_FILE")
rm -f "$PID_FILE"
# https://docs.fluentbit.io/manual/administration/configuring-fluent-bit/yaml/configuration-file#config_section
# The default grace time is set to 5 seconds, so use 6 seconds to have some margin.
timeout=6
while kill -0 "$pid" 2>/dev/null; do
[ $timeout -eq 0 ] && status=1 && break
timeout=$((timeout - 1))
sleep 1
done
fi
if [ "$status" -eq 0 ]; then
echo "OK"
else
echo "FAIL"
fi
return "$status"
}
restart() {
stop
start
}
case "$1" in
start)
start
;;
stop)
stop
;;
restart | reload)
restart
;;
*)
echo "Usage: $0 {start|stop|restart}"
exit 1
;;
esac