# logstash - agent instance
#

description     "logstash agent"

start on virtual-filesystems
stop on runlevel [06]

# Respawn it if the process exits
respawn

# We're setting high here, we'll re-limit below.
limit nofile 65550 65550

setuid logstash
setgid logstash

# You need to chdir somewhere writable because logstash needs to unpack a few
# temporary files on startup.
console log
script
  # Defaults
  PATH=/bin:/usr/bin
  LS_HOME=/var/lib/logstash
  LS_HEAP_SIZE="500m"
  LS_JAVA_OPTS="-Djava.io.tmpdir=${LS_HOME}"
  LS_LOG_FILE=/var/log/logstash/logstash.log
  LS_USE_GC_LOGGING=""
  LS_CONF_DIR=/etc/logstash/conf.d
  LS_OPEN_FILES=16384
  LS_NICE=19
  LS_OPTS=""

  # Override our defaults with user defaults:
  [ -f /etc/default/logstash ] && . /etc/default/logstash

  HOME="${HOME:-$LS_HOME}"
  JAVA_OPTS="${LS_JAVA_OPTS}"
  # Reset filehandle limit
  ulimit -n ${LS_OPEN_FILES}
  cd "${LS_HOME}"

  # Export variables
  export PATH HOME JAVA_OPTS LS_HEAP_SIZE LS_JAVA_OPTS LS_USE_GC_LOGGING
  test -n "${JAVACMD}" && export JAVACMD

  exec nice -n ${LS_NICE} /opt/logstash/bin/logstash agent -f "${LS_CONF_DIR}" -l "${LS_LOG_FILE}" ${LS_OPTS}
end script