docker/swarm/stack/elasticsearch.yml

parameters:
  _param:
    elasticsearch_replicas: 1
    docker_image_elasticsearch: docker.elastic.co/elasticsearch/elasticsearch:5.4.1
    elasticsearch_cluster_name: oss-cluster
    elasticsearch_xpack_security_enabled: 'false'
    elasticsearch_discovery_zen_minimum_master_nodes: 1
  docker:
    client:
      stack:
        elasticsearch:
          environment:
            cluster.name: ${_param:elasticsearch_cluster_name}
            xpack.security.enabled: ${_param:elasticsearch_xpack_security_enabled}
            discovery.zen.minimum_master_nodes: ${_param:elasticsearch_discovery_zen_minimum_master_nodes}
            ES_JAVA_OPTS: '-Des.enforce.bootstrap.checks=true'
          service:
            cluster:
              image: ${_param:docker_image_oss_elasticsearch}
              deploy:
                replicas: ${_param:elasticsearch_replicas}
                restart_policy:
                  condition: any
              ports:
                - ${_param:haproxy_elasticsearch_exposed_port}:${_param:haproxy_elasticsearch_bind_port}
              volumes:
                - /srv/volumes/elasticsearch:/usr/share/elasticsearch/data