docker-compose.yml

version: '3.2'

services:
  # recall to sudo sysctl -w vm.max_map_count=262144 on swarm nodes
  elasticsearch:
    image: agoryachev/docker-swarm-elasticsearch:5.4.0
    ports:
      - "9200:9200"
      - "9300:9300"
    volumes:
      - esdata:/usr/share/elasticsearch/data
    networks:
      - backend
    environment:
      - SERVICE_NAME=${ELK_STACK:-elk}_elasticsearch
      - ELASTICSEARCH_USERNAME=${ELKUSERNAME:-elastic}
      - ELASTICSEARCH_PASSWORD=${ELKPASSWORD:-changeme}
      - discovery.zen.minimum_master_nodes=1
      - cluster.name=elasticsearch
      - bootstrap.memory_lock=true
      - ES_JAVA_OPTS=-Xms512m -Xmx512m -XX:-AssumeMP
    ulimits:
      memlock:
        soft: -1
        hard: -1
      nofile:
        soft: 65536
        hard: 65536
    healthcheck:
    # local test curl http://elastic:changeme@elasticsearch:9200/_cluster/health?wait_for_status=yellow&timeout=50s
    #   test: ["CMD", "curl", "http://localhost:9200/_cluster/health?wait_for_status=yellow&timeout=50s"]
    # dig tasks.${SERVICE_NAME} +short
      test: "curl --silent --fail localhost:9200/_cluster/health?wait_for_status=yellow&timeout=50s || exit 1"
      interval: 1m30s
      timeout: 50s
      retries: 5
    deploy:
      resources:
        limits:
          memory: 1G
      mode: global
      update_config:
        parallelism: 1
        delay: 1m30s
      restart_policy:
        condition: on-failure

volumes:
  esdata:
    external: true

networks:
    backend:
        external: true