upstart job for elastic search

elasticsearch.conf

# ElasticSearch Service

description     "ElasticSearch"

start on (net-device-up
          and local-filesystems
          and runlevel [2345])

stop on runlevel [016]

respawn limit 10 5

env ES_HOME=/usr/share/elasticsearch/home
env ES_MIN_MEM=256m
env ES_MAX_MEM=2g
env DAEMON="${ES_HOME}/bin/elasticsearch"
env DATA_DIR=/data/elasticsearch/data
env CONFIG_DIR=/etc/elasticsearch

console output

script
  if [ -f /etc/default/elasticsearch ]; then
    . /etc/default/elasticsearch
  fi

  su -s /bin/dash -c "/usr/bin/elasticsearch -f -Des.path.conf=$CONFIG_DIR -Des.path.home=$ES_HOME -Des.path.logs=$LOG_DIR -Des.path.data=$DATA_DIR -Des.path.work=$WORK_DIR" elasticsearch
end script

Since the process is running in the foreground, you don't really need a PID file. Upstart takes care of all of the process management for starting and stopping the daemon.

Thanks! Headsup even though $DAEMON is set, it's not used (/usr/bin/elasticsearch hardcoded)