# Prometheus Alert Manager (Upstart unit)
description "The Alertmanager handles alerts sent by client applications such as the Prometheus server."
start on runlevel [2345]
stop on runlevel [06]

env ALERTMANAGER=/usr/bin/alertmanager
env USER=prometheus
env GROUP=prometheus
env DEFAULTS=/etc/default/alertmanager
env RUNDIR=/var/run/alertmanager
env PID_FILE=/var/run/alertmanager/alertmanager.pid
pre-start script
  [ -e $DEFAULTS ] && . $DEFAULTS

  mkdir -p $RUNDIR           || true
  chmod 0750 $RUNDIR         || true
  chown $USER:$GROUP $RUNDIR || true
end script

script
    # read settings like GOMAXPROCS from "/etc/default/alertmanager", if available.
    [ -e $DEFAULTS ] && . $DEFAULTS

    export GOMAXPROCS=${GOMAXPROCS:-2}
    exec start-stop-daemon -c $USER -g $GROUP -p $PID_FILE -x $ALERTMANAGER -S -- $ARGS
end script

respawn
respawn limit 10 10
kill timeout 10