elasticsearch.sample.yml

# Lock the process address space into RAM, preventing any Elasticsearch memory
# from being swapped out.
bootstrap.mlockall: true

discovery.type: "ec2"
plugin.mandatory: "cloud-aws"
discovery.ec2.host_type: "private_ip"
discovery.ec2.ping_timeout: "3s"
discovery.zen.ping.multicast.enabled: false
discovery.zen.minimum_master_nodes: 2

# Automatically add node attributes relating to ec2 (for example, availability zone,
# that can be used with the awareness allocation feature).
cloud.node.auto_attributes: true

cluster.routing.allocation.awareness.attributes: "rack_id"

# You must specify this in order for auto-discovery to work properly.
cluster.name: "dispatchbot"

network.host: 0.0.0.0

metrics.statsd.host: "${STATSD_HOST}"
metrics.statsd.port: "${STATSD_PORT}"