elasticsearch.yml

node.name: node
path:
  data: /data/data
  logs: /data/log
index:
  number_of_shards: 1
  number_of_replicas: 0
http:
  port: 9200
  basic:
    enabled: true
    user: ES_USER
    password: "ES_PASS"

# disable node discovery via multicast
discovery.zen.ping.multicast.enabled: false

# disable shutdown REST API
action.disable_shutdown: true

# ensure mapper-attachments is installed
plugin.mandatory: cloud-aws, http-basic-server-plugin, mapper-attachments