version: '3.3'
services:
  # elastic search.
  es:
    image: elasticsearch:7.4.0
    ports:
      - "9200:9200"
      - "9300:9300"
    volumes:
      - es-data:/usr/share/elasticsearch/data
      - ./elasticsearch.yml:/usr/share/elasticsearch/config/elasticsearch.yml
    environment:
      - "ES_JAVA_OPTS=-Xms512m -Xmx512m"
volumes:
  es-data:
    driver: local